HudGaugeRadarDradis::HudGaugeRadarDradis():
HudGaugeRadar(HUD_OBJECT_RADAR_BSG, 255, 255, 255),
xy_plane(-1), xz_yz_plane(-1), sweep_plane(-1), target_brackets(-1), unknown_contact_icon(-1), sweep_duration(6.0), sweep_percent(0.0), scale(1.20f), sub_y_clip(false)
{
vm_vec_copy_scale(&sweep_normal_x, &vmd_zero_vector, 1.0f);
vm_vec_copy_scale(&sweep_normal_y, &vmd_zero_vector, 1.0f);
vm_vec_copy_scale(&sweep_normal_z, &vmd_zero_vector, 1.0f);
// init the view perturb matrix
view_perturb.a2d[0][0] = 1.0f;
view_perturb.a2d[0][1] = 0.0f;
view_perturb.a2d[0][2] = 0.0f;
view_perturb.a2d[1][0] = 0.0f;
view_perturb.a2d[1][1] = -1.0f;
view_perturb.a2d[1][2] = 0.0f;
view_perturb.a2d[2][0] = 0.0f;
view_perturb.a2d[2][1] = 0.0f;
view_perturb.a2d[2][2] = 1.0f;
// init the orb eye position
Orb_eye_position.a1d[0] = 0.0f;
Orb_eye_position.a1d[1] = 0.0f;
Orb_eye_position.a1d[2] = -2.5f;
fx_guides0_0.a1d[0] = -1.0f;
fx_guides0_0.a1d[1] = 0.0f;
fx_guides0_0.a1d[2] = 0.0f;
fx_guides0_1.a1d[0] = 1.0f;
fx_guides0_1.a1d[1] = 0.0f;
fx_guides0_1.a1d[2] = 0.0f;
fx_guides1_0.a1d[0] = 0.0f;
fx_guides1_0.a1d[1] = -1.0f;
fx_guides1_0.a1d[2] = 0.0f;
fx_guides1_1.a1d[0] = 0.0f;
fx_guides1_1.a1d[1] = 1.0f;
fx_guides1_1.a1d[2] = 0.0f;
fx_guides2_0.a1d[0] = 0.0f;
fx_guides2_0.a1d[1] = 0.0f;
fx_guides2_0.a1d[2] = -1.0f;
fx_guides2_1.a1d[0] = 0.0f;
fx_guides2_1.a1d[1] = 0.0f;
fx_guides2_1.a1d[2] = 1.0f;
this->loop_sound_handle = -1;
}
bool BeamPiercingEffect::processSource(const ParticleSource* source) {
particle_info info;
memset(&info, 0, sizeof(info));
source->getOrigin()->applyToParticleInfo(info);
if (m_effectBitmap >= 0) {
info.type = PARTICLE_BITMAP_PERSISTENT;
info.optional_data = m_effectBitmap;
}
else {
info.type = PARTICLE_SMOKE;
}
info.rad = m_radius * frand_range(0.5f, 2.0f);
vec3d fvec = source->getOrientation()->getDirectionVector();
float base_v, back_v;
vec3d rnd_vec;
vm_vec_rand_vec_quick(&rnd_vec);
if (m_velocity != 0.0f) {
base_v = m_velocity;
} else {
base_v = m_radius;
}
if (m_backVelocity != 0.0f) {
back_v = m_backVelocity;
} else {
back_v = base_v * (-0.2f);
}
vm_vec_copy_scale(&info.vel, &fvec, base_v * frand_range(1.0f, 2.0f));
vm_vec_scale_add2(&info.vel, &rnd_vec, base_v * m_variance);
// Create the primary piercing particle
create(&info);
vm_vec_copy_scale(&info.vel, &fvec, back_v * frand_range(1.0f, 2.0f));
vm_vec_scale_add2(&info.vel, &rnd_vec, back_v * m_variance);
// Create the splash particle
create(&info);
return false;
}
//sets the player facing curseg/curside, normal to face0 of curside, and
//far enough away to see all of curside
int SetPlayerFromCursegMinusOne()
{
vms_vector view_vec,view_vec2,side_center;
vms_vector corner_v[4];
vms_vector upvec;
g3s_point corner_p[4];
int i;
fix max,view_dist=f1_0*10;
static int edgenum=0;
int newseg;
view_vec = Cursegp->sides[Curside].normals[0];
vm_vec_negate(&view_vec);
compute_center_point_on_side(&side_center,Cursegp,Curside);
vm_vec_copy_scale(&view_vec2,&view_vec,view_dist);
vm_vec_sub(&ConsoleObject->pos,&side_center,&view_vec2);
vm_vec_sub(&upvec, &Vertices[Cursegp->verts[Side_to_verts[Curside][edgenum%4]]], &Vertices[Cursegp->verts[Side_to_verts[Curside][(edgenum+3)%4]]]);
edgenum++;
vm_vector_2_matrix(&ConsoleObject->orient,&view_vec,&upvec,NULL);
gr_set_current_canvas(Canv_editor_game);
g3_start_frame();
g3_set_view_matrix(&ConsoleObject->pos,&ConsoleObject->orient,Render_zoom);
for (i=max=0;i<4;i++) {
corner_v[i] = Vertices[Cursegp->verts[Side_to_verts[Curside][i]]];
g3_rotate_point(&corner_p[i],&corner_v[i]);
if (labs(corner_p[i].p3_x) > max) max = labs(corner_p[i].p3_x);
if (labs(corner_p[i].p3_y) > max) max = labs(corner_p[i].p3_y);
}
view_dist = fixmul(view_dist,fixdiv(fixdiv(max,SIDE_VIEW_FRAC),corner_p[0].p3_z));
vm_vec_copy_scale(&view_vec2,&view_vec,view_dist);
vm_vec_sub(&ConsoleObject->pos,&side_center,&view_vec2);
//obj_relink(ConsoleObject-Objects, SEG_PTR_2_NUM(Cursegp) );
//update_object_seg(ConsoleObject); //might have backed right out of curseg
newseg = find_point_seg(&ConsoleObject->pos,SEG_PTR_2_NUM(Cursegp) );
if (newseg != -1)
obj_relink(ConsoleObject-Objects,newseg);
Update_flags |= UF_ED_STATE_CHANGED | UF_GAME_VIEW_CHANGED;
return 1;
}
//Used to set a countermeasure velocity after being launched from a ship as a countermeasure
//ie not as a primary or secondary.
void cmeasure_set_ship_launch_vel(object *objp, object *parent_objp, int arand)
{
vec3d vel, rand_vec;
//Get cmeasure rear velocity in world
vm_vec_scale_add(&vel, &parent_objp->phys_info.vel, &parent_objp->orient.vec.fvec, -25.0f);
//Get random velocity vector
static_randvec(arand+1, &rand_vec);
//Add it to the rear velocity
vm_vec_scale_add2(&vel, &rand_vec, 2.0f);
objp->phys_info.vel = vel;
//Zero out this stuff so it isn't moving
vm_vec_zero(&objp->phys_info.rotvel);
vm_vec_zero(&objp->phys_info.max_vel);
vm_vec_zero(&objp->phys_info.max_rotvel);
// blow out his reverse thrusters. Or drag, same thing.
objp->phys_info.rotdamp = 10000.0f;
objp->phys_info.side_slip_time_const = 10000.0f;
objp->phys_info.max_vel.xyz.z = -25.0f;
vm_vec_copy_scale(&objp->phys_info.desired_vel, &objp->orient.vec.fvec, objp->phys_info.max_vel.xyz.z );
}
// add some jitter to a flak gun's aiming direction, take into account range to target so that we're never _too_ far off
// assumes dir is normalized
void flak_jitter_aim(vec3d* dir, float dist_to_target, float weapon_subsys_strength)
{
vec3d rand_twist_pre, rand_twist_post;
matrix temp;
vec3d final_aim;
float error_val;
// get the matrix needed to rotate the base direction to the actual direction
vm_vector_2_matrix(&temp, dir, NULL, NULL);
// error value
error_val = Flak_error + (Flak_error * 0.65f * (1.0f - weapon_subsys_strength));
// scale the rvec by some random value and make it the "pre-twist" value
float rand_dist = frand_range(0.0f, error_val);
// no jitter - so do nothing
if (rand_dist <= 0.0f)
{
return;
}
vm_vec_copy_scale(&rand_twist_pre, &temp.vec.rvec, rand_dist);
// now rotate the twist vector around the x axis (the base aim axis) at a random angle
vm_rot_point_around_line(&rand_twist_post, &rand_twist_pre, fl_radian(359.0f * frand_range(0.0f,
1.0f)), &vmd_zero_vector, dir);
// add the resulting vector to the base aim vector and normalize
final_aim = *dir;
vm_vec_scale(&final_aim, dist_to_target);
vm_vec_add(dir, &final_aim, &rand_twist_post);
vm_vec_normalize(dir);
}
ubyte g3_rotate_vertex(vertex *dest,vector *src)
{
#if 0
vector tempv;
Assert( G3_count == 1 );
vm_vec_sub(&tempv,src,&View_position);
vm_vec_rotate( (vector *)&dest->x, &tempv, &View_matrix );
dest->flags = 0; //not projected
return g3_code_vertex(dest);
#else
float tx, ty, tz, x,y,z;
ubyte codes;
MONITOR_INC( NumRotations, 1 );
tx = src->xyz.x - View_position.xyz.x;
ty = src->xyz.y - View_position.xyz.y;
tz = src->xyz.z - View_position.xyz.z;
x = tx * View_matrix.vec.rvec.xyz.x;
x += ty * View_matrix.vec.rvec.xyz.y;
x += tz * View_matrix.vec.rvec.xyz.z;
y = tx * View_matrix.vec.uvec.xyz.x;
y += ty * View_matrix.vec.uvec.xyz.y;
y += tz * View_matrix.vec.uvec.xyz.z;
z = tx * View_matrix.vec.fvec.xyz.x;
z += ty * View_matrix.vec.fvec.xyz.y;
z += tz * View_matrix.vec.fvec.xyz.z;
codes = 0;
if (x > z) codes |= CC_OFF_RIGHT;
if (x < -z) codes |= CC_OFF_LEFT;
if (y > z) codes |= CC_OFF_TOP;
if (y < -z) codes |= CC_OFF_BOT;
if (z < MIN_Z ) codes |= CC_BEHIND;
dest->x = x;
dest->y = y;
dest->z = z;
if ( G3_user_clip ) {
// Check if behind user plane
if ( g3_point_behind_user_plane((vector *)&dest->x)) {
codes |= CC_OFF_USER;
}
}
dest->codes = codes;
dest->flags = 0; // not projected
vm_vec_copy_scale(&dest->real_pos, src,1);
return codes;
#endif
}
/**
* Deal with weapon-ship hit stuff.
* Separated from check_collision routine below because of multiplayer reasons.
*/
void ship_weapon_do_hit_stuff(object *pship_obj, object *weapon_obj, vec3d *world_hitpos, vec3d *hitpos, int quadrant_num, int submodel_num, vec3d /*not a pointer intentionaly*/ hit_dir)
{
weapon *wp = &Weapons[weapon_obj->instance];
weapon_info *wip = &Weapon_info[wp->weapon_info_index];
ship *shipp = &Ships[pship_obj->instance];
float damage;
vec3d force;
vec3d worldNormal;
model_instance_find_world_dir(&worldNormal, &hit_dir, shipp->model_instance_num, submodel_num, &pship_obj->orient);
// Apply hit & damage & stuff to weapon
weapon_hit(weapon_obj, pship_obj, world_hitpos, quadrant_num, &worldNormal);
if (wip->damage_time >= 0.0f && wp->lifeleft <= wip->damage_time) {
if (wip->atten_damage >= 0.0f) {
damage = (((wip->damage - wip->atten_damage) * (wp->lifeleft / wip->damage_time)) + wip->atten_damage);
} else {
damage = wip->damage * (wp->lifeleft / wip->damage_time);
}
} else {
damage = wip->damage;
}
// deterine whack whack
float blast = wip->mass;
vm_vec_copy_scale(&force, &weapon_obj->phys_info.vel, blast );
// send player pain packet
if ( (MULTIPLAYER_MASTER) && !(shipp->flags[Ship::Ship_Flags::Dying]) ) {
int np_index = multi_find_player_by_object(pship_obj);
// if this is a player ship
if((np_index >= 0) && (np_index != MY_NET_PLAYER_NUM) && (wip->subtype == WP_LASER)) {
send_player_pain_packet(&Net_players[np_index], wp->weapon_info_index, wip->damage * weapon_get_damage_scale(wip, weapon_obj, pship_obj), &force, hitpos, quadrant_num);
}
}
ship_apply_local_damage(pship_obj, weapon_obj, world_hitpos, damage, quadrant_num, CREATE_SPARKS, submodel_num);
// let the hud shield gauge know when Player or Player target is hit
hud_shield_quadrant_hit(pship_obj, quadrant_num);
// Let wingman status gauge know a wingman ship was hit
if ( (Ships[pship_obj->instance].wing_status_wing_index >= 0) && ((Ships[pship_obj->instance].wing_status_wing_pos >= 0)) ) {
hud_wingman_status_start_flash(shipp->wing_status_wing_index, shipp->wing_status_wing_pos);
}
// Apply a wack. This used to be inside of ship_hit... duh! Ship_hit
// is to apply damage, not physics, so I moved it here.
// don't apply whack for multiplayer_client from laser - will occur with pain packet
if (!((wip->subtype == WP_LASER) && MULTIPLAYER_CLIENT) ) {
// apply a whack
ship_apply_whack( &force, hitpos, pship_obj );
}
}
//this routine will set the thrust for an object to a value that will
//(hopefully) maintain the object's current velocity
void set_thrust_from_velocity(object *obj)
{
fix k;
Assert(obj->movement_type == MT_PHYSICS);
k = fixmuldiv(obj->mtype.phys_info.mass,obj->mtype.phys_info.drag,(f1_0-obj->mtype.phys_info.drag));
vm_vec_copy_scale(&obj->mtype.phys_info.thrust,&obj->mtype.phys_info.velocity,k);
}
// the derivative of a point on the hermite curve
void herm_spline::herm_get_deriv(vec3d *deriv, float u, int k)
{
float a = ( (6.0f * u * u) - (6.0f * u) );
float b = ( (-6.0f * u * u) + (6.0f * u) );
float c = ( (3.0f * u * u) - (4.0f * u) + 1 );
float d = ( (3.0f * u * u) - (2.0f * u) );
vec3d va;
vm_vec_copy_scale(&va, &pts[k], a);
vec3d vb;
vm_vec_copy_scale(&vb, &pts[k+1], b);
vec3d vc;
vm_vec_copy_scale(&vc, &d_pts[k], c);
vec3d vd;
vm_vec_copy_scale(&vd, &d_pts[k+1], d);
vm_vec_add(deriv, &va, &vb);
vm_vec_add2(deriv, &vc);
vm_vec_add2(deriv, &vd);
}
// get a point on the hermite curve.
void herm_spline::herm_get_point(vec3d *out, float u, int k)
{
float a = ( (2.0f * u * u * u) - (3.0f * u * u) + 1 );
float b = ( (-2.0f * u * u * u) + (3.0f * u * u) );
float c = ( (u * u * u) - (2.0f * u * u) + u );
float d = ( (u * u * u) - (u * u) );
vec3d va;
vm_vec_copy_scale(&va, &pts[k], a);
vec3d vb;
vm_vec_copy_scale(&vb, &pts[k+1], b);
vec3d vc;
vm_vec_copy_scale(&vc, &d_pts[k], c);
vec3d vd;
vm_vec_copy_scale(&vd, &d_pts[k+1], d);
vm_vec_add(out, &va, &vb);
vm_vec_add2(out, &vc);
vm_vec_add2(out, &vd);
}
void opengl_create_view_matrix(matrix4 *out, const vec3d *pos, const matrix *orient)
{
vec3d scaled_pos;
vec3d inv_pos;
matrix scaled_orient = *orient;
matrix inv_orient;
vm_vec_copy_scale(&scaled_pos, pos, -1.0f);
vm_vec_scale(&scaled_orient.vec.fvec, -1.0f);
vm_copy_transpose(&inv_orient, &scaled_orient);
vm_vec_rotate(&inv_pos, &scaled_pos, &scaled_orient);
vm_matrix4_set_transform(out, &inv_orient, &inv_pos);
}
static matrix4 create_view_matrix(const vec3d *pos, const matrix *orient)
{
vec3d scaled_pos;
vec3d inv_pos;
matrix scaled_orient = *orient;
matrix inv_orient;
vm_vec_copy_scale(&scaled_pos, pos, -1.0f);
vm_vec_scale(&scaled_orient.vec.fvec, -1.0f);
vm_copy_transpose(&inv_orient, &scaled_orient);
vm_vec_rotate(&inv_pos, &scaled_pos, &scaled_orient);
matrix4 out;
vm_matrix4_set_transform(&out, &inv_orient, &inv_pos);
return out;
}
// ------------------------------------------------------------------
// swarm_update_direction()
//
// Check if we want to update the direction of a swarm missile.
//
void swarm_update_direction(object *objp, float frametime)
{
weapon_info *wip;
weapon *wp;
object *hobjp;
swarm_info *swarmp;
vec3d obj_to_target;
float vel, target_dist, radius, missile_speed, missile_dist;
physics_info *pi;
Assert(objp->instance >= 0 && objp->instance < MAX_WEAPONS);
wp = &Weapons[objp->instance];
if (wp->swarm_index == -1) {
return;
}
wip = &Weapon_info[wp->weapon_info_index];
hobjp = wp->homing_object;
pi = &Objects[wp->objnum].phys_info;
swarmp = &Swarm_missiles[wp->swarm_index];
// check if homing is lost.. if it is then get a new path to move swarm missile along
if ( swarmp->homing_objnum != -1 && hobjp == &obj_used_list ) {
swarmp->change_timestamp = 1;
swarmp->path_num = -1;
swarmp->homing_objnum = -1;
}
if ( hobjp != &obj_used_list ) {
swarmp->homing_objnum = OBJ_INDEX(hobjp);
}
if ( timestamp_elapsed(swarmp->change_timestamp) ) {
if ( swarmp->path_num == -1 ) {
if ( Objects[objp->parent].type != OBJ_SHIP ) {
//AL: parent ship died... so just pick some random paths
swarmp->path_num = myrand()%4;
} else {
ship *parent_shipp;
parent_shipp = &Ships[Objects[objp->parent].instance];
swarmp->path_num = (parent_shipp->next_swarm_path++)%4;
if ( parent_shipp->next_swarm_path%4 == 0 ) {
swarmp->flags ^= SWARM_POSITIVE_PATH;
}
}
vm_vec_scale_add(&swarmp->original_target, &objp->pos, &objp->orient.vec.fvec, SWARM_CONE_LENGTH);
swarmp->circle_rvec = objp->orient.vec.rvec;
swarmp->circle_uvec = objp->orient.vec.uvec;
swarmp->change_count = 1;
swarmp->change_time = fl2i(SWARM_CHANGE_DIR_TIME + SWARM_TIME_VARIANCE*(frand() - 0.5f) * 2);
vm_vec_zero(&swarmp->last_offset);
missile_speed = pi->speed;
missile_dist = missile_speed * swarmp->change_time/1000.0f;
if ( missile_dist < SWARM_DIST_OFFSET ) {
missile_dist=i2fl(SWARM_DIST_OFFSET);
}
swarmp->angle_offset = (float)(asin(SWARM_DIST_OFFSET / missile_dist));
Assert(!_isnan(swarmp->angle_offset) );
}
swarmp->change_timestamp = timestamp(swarmp->change_time);
// check if swarm missile is homing, if so need to calculate a new target pos to turn towards
if ( hobjp != &obj_used_list && f2fl(Missiontime - wp->creation_time) > 0.5f && ( f2fl(Missiontime - wp->creation_time) > wip->free_flight_time ) ) {
swarmp->original_target = wp->homing_pos;
// Calculate a rvec and uvec that will determine the displacement from the
// intended target. Use crossprod to generate a right vector, from the missile
// up vector and the vector connecting missile to the homing object.
swarmp->circle_uvec = objp->orient.vec.uvec;
swarmp->circle_rvec = objp->orient.vec.rvec;
missile_speed = pi->speed;
missile_dist = missile_speed * swarmp->change_time/1000.0f;
if ( missile_dist < SWARM_DIST_OFFSET ) {
missile_dist = i2fl(SWARM_DIST_OFFSET);
}
swarmp->angle_offset = (float)(asin(SWARM_DIST_OFFSET / missile_dist));
Assert(!_isnan(swarmp->angle_offset) );
}
vm_vec_sub(&obj_to_target, &swarmp->original_target, &objp->pos);
target_dist = vm_vec_mag_quick(&obj_to_target);
swarmp->last_dist = target_dist;
// If homing swarm missile is close to target, let missile home in on original target
if ( target_dist < SWARM_DIST_STOP_SWARMING ) {
swarmp->new_target = swarmp->original_target;
goto swarm_new_target_calced;
}
radius = (float)tan(swarmp->angle_offset) * target_dist;
vec3d rvec_component, uvec_component;
swarmp->change_count++;
if ( swarmp->change_count > 2 ) {
swarmp->flags ^= SWARM_POSITIVE_PATH;
swarmp->change_count = 0;
}
// pick a new path number to follow once at center
if ( swarmp->change_count == 1 ) {
swarmp->path_num = swarmp->path_num + myrand()%3;
if ( swarmp->path_num > 3 ) {
swarmp->path_num = 0;
}
}
vm_vec_zero(&rvec_component);
vm_vec_zero(&uvec_component);
switch ( swarmp->path_num ) {
case 0: // straight up and down
if ( swarmp->flags & SWARM_POSITIVE_PATH )
vm_vec_copy_scale( &uvec_component, &swarmp->circle_uvec, radius);
else
vm_vec_copy_scale( &uvec_component, &swarmp->circle_uvec, -radius);
break;
case 1: // left/right
if ( swarmp->flags & SWARM_POSITIVE_PATH )
vm_vec_copy_scale( &rvec_component, &swarmp->circle_rvec, radius);
else
vm_vec_copy_scale( &rvec_component, &swarmp->circle_rvec, -radius);
break;
case 2: // top/right - bottom/left
if ( swarmp->flags & SWARM_POSITIVE_PATH ) {
vm_vec_copy_scale( &rvec_component, &swarmp->circle_rvec, radius);
vm_vec_copy_scale( &uvec_component, &swarmp->circle_uvec, radius);
}
else {
vm_vec_copy_scale( &rvec_component, &swarmp->circle_rvec, -radius);
vm_vec_copy_scale( &uvec_component, &swarmp->circle_uvec, -radius);
}
break;
case 3: // top-left - bottom/right
if ( swarmp->flags & SWARM_POSITIVE_PATH ) {
vm_vec_copy_scale( &rvec_component, &swarmp->circle_rvec, -radius);
vm_vec_copy_scale( &uvec_component, &swarmp->circle_uvec, radius);
}
else {
vm_vec_copy_scale( &rvec_component, &swarmp->circle_rvec, radius);
vm_vec_copy_scale( &uvec_component, &swarmp->circle_uvec, -radius);
}
break;
default:
Int3();
break;
}
swarmp->new_target = swarmp->original_target;
vm_vec_zero(&swarmp->last_offset);
vm_vec_add(&swarmp->last_offset, &uvec_component, &rvec_component);
vm_vec_add2(&swarmp->new_target, &swarmp->last_offset);
}
else {
if ( hobjp != &obj_used_list && f2fl(Missiontime - wp->creation_time) > 0.5f ) {
swarmp->new_target = swarmp->original_target;
if ( swarmp->last_dist < SWARM_DIST_STOP_SWARMING ) {
swarmp->new_target = wp->homing_pos;
goto swarm_new_target_calced;
}
vm_vec_add2(&swarmp->new_target, &swarmp->last_offset);
}
}
swarm_new_target_calced:
ai_turn_towards_vector(&swarmp->new_target, objp, frametime, wip->turn_time, NULL, NULL, 0.0f, 0);
vel = vm_vec_mag(&objp->phys_info.desired_vel);
vm_vec_copy_scale(&objp->phys_info.desired_vel, &objp->orient.vec.fvec, vel);
}
void physics_apply_shock(vec3d *direction_vec, float pressure, physics_info *pi, matrix *orient, vec3d *min, vec3d *max, float radius)
{
vec3d normal;
vec3d local_torque, temp_torque, torque;
vec3d impact_vec;
vec3d area;
vec3d sin;
if (radius > MAX_RADIUS) {
return;
}
vm_vec_normalize_safe ( direction_vec );
area.xyz.x = (max->xyz.y - min->xyz.z) * (max->xyz.z - min->xyz.z);
area.xyz.y = (max->xyz.x - min->xyz.x) * (max->xyz.z - min->xyz.z);
area.xyz.z = (max->xyz.x - min->xyz.x) * (max->xyz.y - min->xyz.y);
normal.xyz.x = vm_vec_dotprod( direction_vec, &orient->vec.rvec );
normal.xyz.y = vm_vec_dotprod( direction_vec, &orient->vec.uvec );
normal.xyz.z = vm_vec_dotprod( direction_vec, &orient->vec.fvec );
sin.xyz.x = fl_sqrt( fl_abs(1.0f - normal.xyz.x*normal.xyz.x) );
sin.xyz.y = fl_sqrt( fl_abs(1.0f - normal.xyz.y*normal.xyz.y) );
sin.xyz.z = fl_sqrt( fl_abs(1.0f - normal.xyz.z*normal.xyz.z) );
vm_vec_make( &torque, 0.0f, 0.0f, 0.0f );
// find the torque exerted due to the shockwave hitting each face
// model the effect of the shockwave as if the shockwave were a plane of projectiles,
// all moving in the direction direction_vec. then find the torque as the cross prod
// of the force (pressure * area * normal * sin * scale * mass)
// normal takes account the fraction of the surface exposed to the shockwave
// the sin term is not technically needed but "feels" better
// scale factors out the increase in area with larger objects
// more massive objects get less rotation
// find torque due to forces on the right/left face
if ( normal.xyz.x < 0.0f ) // normal < 0, hits the right face
vm_vec_copy_scale( &impact_vec, &orient->vec.rvec, max->xyz.x * pressure * area.xyz.x * normal.xyz.x * sin.xyz.x / pi->mass );
else // normal > 0, hits the left face
vm_vec_copy_scale( &impact_vec, &orient->vec.rvec, min->xyz.x * pressure * area.xyz.x * -normal.xyz.x * sin.xyz.x / pi->mass );
vm_vec_crossprod( &temp_torque, &impact_vec, direction_vec );
vm_vec_add2( &torque, &temp_torque );
// find torque due to forces on the up/down face
if ( normal.xyz.y < 0.0f )
vm_vec_copy_scale( &impact_vec, &orient->vec.uvec, max->xyz.y * pressure * area.xyz.y * normal.xyz.y * sin.xyz.y / pi->mass );
else
vm_vec_copy_scale( &impact_vec, &orient->vec.uvec, min->xyz.y * pressure * area.xyz.y * -normal.xyz.y * sin.xyz.y / pi->mass );
vm_vec_crossprod( &temp_torque, &impact_vec, direction_vec );
vm_vec_add2( &torque, &temp_torque );
// find torque due to forces on the forward/backward face
if ( normal.xyz.z < 0.0f )
vm_vec_copy_scale( &impact_vec, &orient->vec.fvec, max->xyz.z * pressure * area.xyz.z * normal.xyz.z * sin.xyz.z / pi->mass );
else
vm_vec_copy_scale( &impact_vec, &orient->vec.fvec, min->xyz.z * pressure * area.xyz.z * -normal.xyz.z * sin.xyz.z / pi->mass );
vm_vec_crossprod( &temp_torque, &impact_vec, direction_vec );
vm_vec_add2( &torque, &temp_torque );
// compute delta rotvel, scale according to blast and radius
float scale;
if (radius < MIN_RADIUS) {
scale = 1.0f;
} else {
scale = (MAX_RADIUS - radius)/(MAX_RADIUS-MIN_RADIUS);
}
// set shockwave shake amplitude, duration, flag
pi->shockwave_shake_amp = (float)(MAX_SHAKE*(pressure/STD_PRESSURE)*scale);
pi->shockwave_decay = timestamp( SW_BLAST_DURATION );
pi->flags |= PF_IN_SHOCKWAVE;
// safety dance
if (!(IS_VEC_NULL_SQ_SAFE(&torque))) {
vec3d delta_rotvel;
vm_vec_rotate( &local_torque, &torque, orient );
vm_vec_copy_normalize(&delta_rotvel, &local_torque);
vm_vec_scale(&delta_rotvel, (float)(MAX_ROTVEL*(pressure/STD_PRESSURE)*scale));
// nprintf(("Physics", "rotvel scale %f\n", (MAX_ROTVEL*(pressure/STD_PRESSURE)*scale)));
vm_vec_add2(&pi->rotvel, &delta_rotvel);
}
// set reduced translational damping, set flags
float velocity_scale = (float)MAX_VEL*scale;
pi->flags |= PF_REDUCED_DAMP;
update_reduced_damp_timestamp( pi, velocity_scale*pi->mass );
vm_vec_scale_add2( &pi->vel, direction_vec, velocity_scale );
vm_vec_rotate(&pi->prev_ramp_vel, &pi->vel, orient); // set so velocity will ramp starting from current speed
// check that kick from shockwave is not too large
if (!(pi->flags & PF_USE_VEL) && (vm_vec_mag_squared(&pi->vel) > MAX_SHIP_SPEED*MAX_SHIP_SPEED)) {
// Get DaveA
nprintf(("Physics", "speed reset in physics_apply_shock [speed: %f]\n", vm_vec_mag(&pi->vel)));
vm_vec_normalize(&pi->vel);
vm_vec_scale(&pi->vel, (float)RESET_SHIP_SPEED);
}
}
void do_object_physics( object * obj )
{
vms_angvec rotang;
vms_vector frame_vec; //movement in this frame
vms_vector new_pos,ipos; //position after this frame
int iseg;
int hit;
vms_matrix rotmat,new_pm;
int count=0;
short joy_x,joy_y,btns;
int joyx_moved,joyy_moved;
fix speed;
vms_vector *desired_upvec;
fixang delta_ang,roll_ang;
vms_vector forvec = {0,0,f1_0};
vms_matrix temp_matrix;
//check keys
rotang.pitch = ROT_SPEED * (key_down_time(KEY_UP) - key_down_time(KEY_DOWN));
rotang.head = ROT_SPEED * (key_down_time(KEY_RIGHT) - key_down_time(KEY_LEFT));
rotang.bank = 0;
//check for joystick movement
joy_get_pos(&joy_x,&joy_y);
btns=joy_get_btns();
joyx_moved = (abs(joy_x - _old_joy_x)>JOY_NULL);
joyy_moved = (abs(joy_y - _old_joy_y)>JOY_NULL);
if (abs(joy_x) < JOY_NULL) joy_x = 0;
if (abs(joy_y) < JOY_NULL) joy_y = 0;
if (!rotang.pitch) rotang.pitch = fixmul(-joy_y * 128,FrameTime);
if (!rotang.head) rotang.head = fixmul(joy_x * 128,FrameTime);
if (joyx_moved) _old_joy_x = joy_x;
if (joyy_moved) _old_joy_y = joy_y;
speed = ((btns&2) || keyd_pressed[KEY_A])?SLOW_SPEED*3:(keyd_pressed[KEY_Z]?SLOW_SPEED/2:SLOW_SPEED);
//now build matrices, do rotations, etc., etc.
vm_angles_2_matrix(&rotmat,&rotang);
vm_matrix_x_matrix(&new_pm,&obj->orient,&rotmat);
obj->orient = new_pm;
//move player
vm_vec_copy_scale(&obj->velocity,&obj->orient.fvec,speed);
vm_vec_copy_scale(&frame_vec,&obj->velocity,FrameTime);
do {
fix wall_part;
vms_vector tvec;
count++;
vm_vec_add(&new_pos,&obj->pos,&frame_vec);
hit = find_vector_intersection(&ipos,&iseg,&obj->pos,obj->seg_id,&new_pos,obj->size,-1);
obj->seg_id = iseg;
obj->pos = ipos;
//-FIXJOHN-if (hit==HIT_OBJECT) ExplodeObject(hit_objnum);
if (hit==HIT_WALL) {
vm_vec_sub(&frame_vec,&new_pos,&obj->pos); //part through wall
wall_part = vm_vec_dot(wall_norm,&frame_vec);
vm_vec_copy_scale(&tvec,wall_norm,wall_part);
if ((wall_part == 0) || (vm_vec_mag(&tvec) < 5)) Int3();
vm_vec_sub2(&frame_vec,&tvec);
}
} while (hit == HIT_WALL);
Assert(check_point_in_seg(&obj->pos,obj->seg_id,0).centermask==0);
//now bank player according to segment orientation
desired_upvec = &Segments[obj->seg_id].sides[3].faces[0].normal;
if (labs(vm_vec_dot(desired_upvec,&obj->orient.fvec)) < f1_0/2) {
vm_vector_2_matrix(&temp_matrix,&obj->orient.fvec,desired_upvec,NULL);
delta_ang = vm_vec_delta_ang(&obj->orient.uvec,&temp_matrix.uvec,&obj->orient.fvec);
if (rotang.head) delta_ang += (rotang.head<0)?TURNROLL_ANG:-TURNROLL_ANG;
if (abs(delta_ang) > DAMP_ANG) {
roll_ang = fixmul(FrameTime,ROLL_RATE);
if (abs(delta_ang) < roll_ang) roll_ang = delta_ang;
else if (delta_ang<0) roll_ang = -roll_ang;
vm_vec_ang_2_matrix(&rotmat,&forvec,roll_ang);
vm_matrix_x_matrix(&new_pm,&obj->orient,&rotmat);
obj->orient = new_pm;
}
}
}
// function to actually deal with weapon-ship hit stuff. separated from check_collision routine below
// because of multiplayer reasons.
void ship_weapon_do_hit_stuff(object *ship_obj, object *weapon_obj, vec3d *world_hitpos, vec3d *hitpos, int quadrant_num, int submodel_num, vec3d /*not a pointer intentionaly*/ hit_dir)
{
weapon *wp = &Weapons[weapon_obj->instance];
weapon_info *wip = &Weapon_info[wp->weapon_info_index];
ship *shipp = &Ships[ship_obj->instance];
float damage;
vec3d force;
// Apply hit & damage & stuff to weapon
weapon_hit(weapon_obj, ship_obj, world_hitpos);
damage = wip->damage;
// deterine whack whack
float blast = wip->mass;
vm_vec_copy_scale(&force, &weapon_obj->phys_info.vel, blast );
// send player pain packet
if ( (MULTIPLAYER_MASTER) && !(shipp->flags & SF_DYING) ){
int np_index = multi_find_player_by_object(ship_obj);
// if this is a player ship
if((np_index >= 0) && (np_index != MY_NET_PLAYER_NUM) && (wip->subtype == WP_LASER)){
send_player_pain_packet(&Net_players[np_index], wp->weapon_info_index, wip->damage * weapon_get_damage_scale(wip, weapon_obj, ship_obj), &force, hitpos);
}
}
ship_apply_local_damage(ship_obj, weapon_obj, world_hitpos, damage, quadrant_num, CREATE_SPARKS, submodel_num);
// let the hud shield gauge know when Player or Player target is hit
hud_shield_quadrant_hit(ship_obj, quadrant_num);
// Let wingman status gauge know a wingman ship was hit
if ( (Ships[ship_obj->instance].wing_status_wing_index >= 0) && ((Ships[ship_obj->instance].wing_status_wing_pos >= 0)) ) {
hud_wingman_status_start_flash(shipp->wing_status_wing_index, shipp->wing_status_wing_pos);
}
// Apply a wack. This used to be inside of ship_hit... duh! Ship_hit
// is to apply damage, not physics, so I moved it here.
// don't apply whack for multiplayer_client from laser - will occur with pain packet
if (!((wip->subtype == WP_LASER) && MULTIPLAYER_CLIENT) ) {
// apply a whack
ship_apply_whack( &force, hitpos, ship_obj );
}
if( (quadrant_num == -1) && Cmdline_decals ){
weapon_info *wip = &Weapon_info[Weapons[weapon_obj->instance].weapon_info_index];
decal_point dec;
dec.orient = weapon_obj->orient;
vec3d hit_fvec;
vm_vec_negate(&hit_dir);
vm_vec_avg(&hit_fvec, &hit_dir, &weapon_obj->orient.vec.fvec);
vm_vec_normalize(&hit_fvec);
dec.orient.vec.fvec = hit_fvec;
vm_fix_matrix(&dec.orient);
dec.pnt.xyz = hitpos->xyz;
dec.radius = wip->decal_rad;
if ( (dec.radius > 0) && (wip->decal_texture.bitmap_id > -1) )
decal_create(ship_obj, &dec, submodel_num, wip->decal_texture.bitmap_id, wip->decal_backface_texture.bitmap_id, wip->decal_glow_texture_id, wip->decal_burn_texture_id, wip->decal_burn_time);
}
}
void HudGaugeRadarDradis::drawSweeps()
{
if (sweep_plane == -1)
return;
sweep_percent = (fmod(((float)game_get_overall_frametime() / (float)65536), sweep_duration) / sweep_duration) * PI * 2; // convert to radians from 0 <-> 1
float sweep_perc_z = sweep_percent * -0.5f;
vec3d sweep_a;
vec3d sweep_b;
vec3d sweep_c;
vm_rot_point_around_line(&sweep_a, &vmd_y_vector, sweep_percent, &vmd_zero_vector, &vmd_z_vector); // Sweep line: XZ
vm_rot_point_around_line(&sweep_b, &vmd_y_vector, sweep_percent, &vmd_zero_vector, &vmd_x_vector); // Sweep line: YZ
vm_rot_point_around_line(&sweep_c, &vmd_x_vector, sweep_perc_z, &vmd_zero_vector, &vmd_y_vector); // Sweep line: XY
vm_vec_copy_scale(&sweep_normal_x, &sweep_a, 1.0f);
vm_vec_copy_scale(&sweep_normal_y, &sweep_b, 1.0f);
g3_start_instance_matrix(&vmd_zero_vector, /*&Player_obj->orient*/&vmd_identity_matrix, true);
gr_set_bitmap(sweep_plane, GR_ALPHABLEND_FILTER, GR_BITBLT_MODE_NORMAL, 1.0f);
g3_draw_polygon(&vmd_zero_vector, &sweep_a, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT);
g3_draw_polygon(&vmd_zero_vector, &sweep_b, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT);
g3_draw_polygon(&vmd_zero_vector, &sweep_c, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT);
float rotation = sweep_percent;
vm_rot_point_around_line(&sweep_a, &vmd_y_vector, rotation, &vmd_zero_vector, &vmd_z_vector); // Sweep line: XZ
vm_rot_point_around_line(&sweep_b, &vmd_y_vector, rotation, &vmd_zero_vector, &vmd_x_vector); // Sweep line: YZ
vm_rot_point_around_line(&sweep_c, &vmd_x_vector,sweep_perc_z, &vmd_zero_vector, &vmd_y_vector); // Sweep line: YZ
gr_set_bitmap(sweep_plane, GR_ALPHABLEND_FILTER, GR_BITBLT_MODE_NORMAL);
g3_draw_polygon(&vmd_zero_vector, &sweep_a, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT); // Sweep line: XZ
g3_draw_polygon(&vmd_zero_vector, &sweep_b, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT); // Sweep line: YZ
g3_draw_polygon(&vmd_zero_vector, &sweep_c, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT);
/*int dist = 90;
for(int i = 1; i < dist; i++)
{
float rotation = sweep_percent - (i * RADIANS_PER_DEGREE);
float alpha = (1.0f - (float)((float)i / (float)dist)) * 0.25f;
//if (i < 2)
//alpha = 1.0f;
gr_set_bitmap(sweep_plane, GR_ALPHABLEND_FILTER, GR_BITBLT_MODE_NORMAL, alpha);
vm_rot_point_around_line(&sweep_a, &vmd_y_vector, rotation, &vmd_zero_vector, &vmd_z_vector); // Sweep line: XZ
vm_rot_point_around_line(&sweep_b, &vmd_y_vector, rotation, &vmd_zero_vector, &vmd_x_vector); // Sweep line: YZ
g3_draw_polygon(&vmd_zero_vector, &sweep_a, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT); // Sweep line: XZ
g3_draw_polygon(&vmd_zero_vector, &sweep_b, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT); // Sweep line: YZ
if (i < (dist * 0.5f))
{
vm_rot_point_around_line(&sweep_c, &vmd_x_vector,sweep_perc_z + (i * RADIANS_PER_DEGREE), &vmd_zero_vector, &vmd_y_vector); // Sweep line: YZ
g3_draw_polygon(&vmd_zero_vector, &sweep_c, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT);
}
}*/
g3_done_instance(true);
}
float g3_draw_laser_htl(vec3d *p0,float width1,vec3d *p1,float width2, int r, int g, int b, uint tmap_flags)
{
width1 *= 0.5f;
width2 *= 0.5f;
vec3d uvec, fvec, rvec, center, reye, rfvec;
vm_vec_sub( &fvec, p0, p1 );
vm_vec_normalize_safe( &fvec );
vm_vec_copy_scale(&rfvec, &fvec, -1.0f);
vm_vec_avg( ¢er, p0, p1 ); //needed for the return value only
vm_vec_sub(&reye, &Eye_position, ¢er);
vm_vec_normalize(&reye);
// code intended to prevent possible null vector normalize issue - start
if (vm_test_parallel(&reye,&fvec)){
fvec.xyz.x = -reye.xyz.z;
fvec.xyz.y = 0.0f;
fvec.xyz.z = -reye.xyz.x;
}
if (vm_test_parallel(&reye,&rfvec)){
fvec.xyz.x = reye.xyz.z;
fvec.xyz.y = 0.0f;
fvec.xyz.z = reye.xyz.x;
}
// code intended to prevent possible null vector normalize issue - end
vm_vec_crossprod(&uvec,&fvec,&reye);
vm_vec_normalize(&uvec);
vm_vec_crossprod(&fvec,&uvec,&reye);
vm_vec_normalize(&fvec);
//now recompute right vector, in case it wasn't entirely perpendiclar
vm_vec_crossprod(&rvec,&uvec,&fvec);
// Now have uvec, which is up vector and rvec which is the normal
// of the face.
int i;
vec3d start, end;
vm_vec_scale_add(&start, p0, &fvec, -width1);
vm_vec_scale_add(&end, p1, &fvec, width2);
vec3d vecs[4];
vertex pts[4];
vertex *ptlist[8] =
{ &pts[3], &pts[2], &pts[1], &pts[0],
&pts[0], &pts[1], &pts[2], &pts[3]};
vm_vec_scale_add( &vecs[0], &start, &uvec, width1 );
vm_vec_scale_add( &vecs[1], &end, &uvec, width2 );
vm_vec_scale_add( &vecs[2], &end, &uvec, -width2 );
vm_vec_scale_add( &vecs[3], &start, &uvec, -width1 );
for (i=0; i<4; i++ ) {
g3_transfer_vertex( &pts[i], &vecs[i] );
}
ptlist[0]->texture_position.u = 0.0f;
ptlist[0]->texture_position.v = 0.0f;
ptlist[1]->texture_position.u = 1.0f;
ptlist[1]->texture_position.v = 0.0f;
ptlist[2]->texture_position.u = 1.0f;
ptlist[2]->texture_position.v = 1.0f;
ptlist[3]->texture_position.u = 0.0f;
ptlist[3]->texture_position.v = 1.0f;
ptlist[0]->r = (ubyte)r;
ptlist[0]->g = (ubyte)g;
ptlist[0]->b = (ubyte)b;
ptlist[0]->a = 255;
ptlist[1]->r = (ubyte)r;
ptlist[1]->g = (ubyte)g;
ptlist[1]->b = (ubyte)b;
ptlist[1]->a = 255;
ptlist[2]->r = (ubyte)r;
ptlist[2]->g = (ubyte)g;
ptlist[2]->b = (ubyte)b;
ptlist[2]->a = 255;
ptlist[3]->r = (ubyte)r;
ptlist[3]->g = (ubyte)g;
ptlist[3]->b = (ubyte)b;
ptlist[3]->a = 255;
gr_tmapper(4, ptlist,tmap_flags | TMAP_FLAG_RGB | TMAP_FLAG_GOURAUD | TMAP_FLAG_CORRECT);
return center.xyz.z;
}
// -----------------------------------------------------------------------------------------------------------
// add rotational velocity & acceleration
void do_physics_sim_rot(object *obj)
{
vms_angvec tangles;
vms_matrix rotmat,new_orient;
//fix rotdrag_scale;
physics_info *pi;
Assert(FrameTime > 0); //Get MATT if hit this!
pi = &obj->mtype.phys_info;
if (!(pi->rotvel.x || pi->rotvel.y || pi->rotvel.z || pi->rotthrust.x || pi->rotthrust.y || pi->rotthrust.z))
return;
if (obj->mtype.phys_info.drag) {
int count;
vms_vector accel;
fix drag,r,k;
count = FrameTime / FT;
r = FrameTime % FT;
k = fixdiv(r,FT);
drag = (obj->mtype.phys_info.drag*5)/2;
if (obj->mtype.phys_info.flags & PF_USES_THRUST) {
vm_vec_copy_scale(&accel,&obj->mtype.phys_info.rotthrust,fixdiv(f1_0,obj->mtype.phys_info.mass));
while (count--) {
vm_vec_add2(&obj->mtype.phys_info.rotvel,&accel);
vm_vec_scale(&obj->mtype.phys_info.rotvel,f1_0-drag);
}
//do linear scale on remaining bit of time
vm_vec_scale_add2(&obj->mtype.phys_info.rotvel,&accel,k);
vm_vec_scale(&obj->mtype.phys_info.rotvel,f1_0-fixmul(k,drag));
}
else {
fix total_drag=f1_0;
while (count--)
total_drag = fixmul(total_drag,f1_0-drag);
//do linear scale on remaining bit of time
total_drag = fixmul(total_drag,f1_0-fixmul(k,drag));
vm_vec_scale(&obj->mtype.phys_info.rotvel,total_drag);
}
}
//now rotate object
//unrotate object for bank caused by turn
if (obj->mtype.phys_info.turnroll) {
vms_matrix new_pm;
tangles.p = tangles.h = 0;
tangles.b = -obj->mtype.phys_info.turnroll;
vm_angles_2_matrix(&rotmat,&tangles);
vm_matrix_x_matrix(&new_pm,&obj->orient,&rotmat);
obj->orient = new_pm;
}
tangles.p = fixmul(obj->mtype.phys_info.rotvel.x,FrameTime);
tangles.h = fixmul(obj->mtype.phys_info.rotvel.y,FrameTime);
tangles.b = fixmul(obj->mtype.phys_info.rotvel.z,FrameTime);
vm_angles_2_matrix(&rotmat,&tangles);
vm_matrix_x_matrix(&new_orient,&obj->orient,&rotmat);
obj->orient = new_orient;
if (obj->mtype.phys_info.flags & PF_TURNROLL)
set_object_turnroll(obj);
//re-rotate object for bank caused by turn
if (obj->mtype.phys_info.turnroll) {
vms_matrix new_pm;
tangles.p = tangles.h = 0;
tangles.b = obj->mtype.phys_info.turnroll;
vm_angles_2_matrix(&rotmat,&tangles);
vm_matrix_x_matrix(&new_pm,&obj->orient,&rotmat);
obj->orient = new_pm;
}
check_and_fix_matrix(&obj->orient);
}
void read_flying_controls( object * obj )
{
if ((Players[Player_num].spec_flags & PLAYER_FLAGS_SPECTATING) && (!in_free))
return; // jinx 08-07-13 spec
fix afterburner_thrust;
fix spec_booster = 0;
fix spec_speed_x = 0;
fix spec_speed_y = 0;
fix spec_speed_z = 0;
Assert(FrameTime > 0); //Get MATT if hit this!
// Couldn't the "50" in the next three lines be changed to "64" with no ill effect?
obj->mtype.phys_info.rotthrust.x = Controls.pitch_time;
obj->mtype.phys_info.rotthrust.y = Controls.heading_time;
obj->mtype.phys_info.rotthrust.z = Controls.bank_time;
afterburner_thrust = 0;
if (Players[Player_num].flags & PLAYER_FLAGS_AFTERBURNER)
afterburner_thrust = FrameTime;
if (Players[Player_num].spec_flags & PLAYER_FLAGS_SPECTATING) // jinx 08-07-13 spec
{
spec_booster = Cruise_speed / F1_0 * SPEC_SPEED_MOD; // jinx 08-07-13 spec
// Cruise_speed / (F1_0 * 10) = a scale of 100% normal thrust time to 110% total
// 6553600 Cruise_speed == F1_0 * 100
if (spec_booster) // jinx 08-07-13 spec
{
spec_speed_z = (Controls.forward_thrust_time * spec_booster / 100);
spec_speed_x = (Controls.sideways_thrust_time * spec_booster / 100);
spec_speed_y = (Controls.vertical_thrust_time * spec_booster / 100);
}
}
//if (f2i(Cruise_speed) < 50) spec_booster *= -1;
// Set object's thrust vector for forward/backward
vm_vec_copy_scale(&obj->mtype.phys_info.thrust,&obj->orient.fvec, Controls.forward_thrust_time + afterburner_thrust + spec_speed_z); // jinx 08-07-13 spec
// slide left/right
vm_vec_scale_add2(&obj->mtype.phys_info.thrust,&obj->orient.rvec, Controls.sideways_thrust_time + spec_speed_x); // jinx 08-07-13 spec
// slide up/down
vm_vec_scale_add2(&obj->mtype.phys_info.thrust,&obj->orient.uvec, Controls.vertical_thrust_time + spec_speed_y); // jinx 08-07-13 spec
if (obj->mtype.phys_info.flags & PF_WIGGLE) {
fix swiggle;
fix_fastsincos(((fix)GameTime64), &swiggle, NULL);
if (FrameTime < F1_0) // Only scale wiggle if getting at least 1 FPS, to avoid causing the opposite problem.
swiggle = fixmul(swiggle*20, FrameTime); //make wiggle fps-independant (based on pre-scaled amount of wiggle at 20 FPS)
vm_vec_scale_add2(&obj->mtype.phys_info.velocity,&obj->orient.uvec,fixmul(swiggle,Player_ship->wiggle));
}
// As of now, obj->mtype.phys_info.thrust & obj->mtype.phys_info.rotthrust are
// in units of time... In other words, if thrust==FrameTime, that
// means that the user was holding down the Max_thrust key for the
// whole frame. So we just scale them up by the max, and divide by
// FrameTime to make them independant of framerate
// Prevent divide overflows on high frame rates.
// In a signed divide, you get an overflow if num >= div<<15
{
fix ft = FrameTime;
// Note, you must check for ft < F1_0/2, else you can get an overflow on the << 15.
if ((ft < F1_0/2) && (ft << 15 <= Player_ship->max_thrust)) {
ft = (Player_ship->max_thrust >> 15) + 1;
}
vm_vec_scale( &obj->mtype.phys_info.thrust, fixdiv(Player_ship->max_thrust,ft) );
if ((ft < F1_0/2) && (ft << 15 <= Player_ship->max_rotthrust)) {
ft = (Player_ship->max_thrust >> 15) + 1;
}
// -----------------------------------------------------------------------------------------------------------
//Simulate a physics object for this frame
do_physics_sim(object *obj)
{
int ignore_obj_list[MAX_IGNORE_OBJS],n_ignore_objs;
int iseg;
int try_again;
int fate;
vms_vector frame_vec; //movement in this frame
vms_vector new_pos,ipos; //position after this frame
int count=0;
int objnum;
int WallHitSeg, WallHitSide;
fvi_info hit_info;
fvi_query fq;
vms_vector save_pos;
int save_seg;
fix drag;
fix sim_time;
vms_vector start_pos;
int obj_stopped=0;
fix moved_time; //how long objected moved before hit something
vms_vector save_p0,save_p1;
physics_info *pi;
int orig_segnum = obj->segnum;
Assert(obj->type != OBJ_NONE);
Assert(obj->movement_type == MT_PHYSICS);
#ifndef NDEBUG
if (Dont_move_ai_objects)
if (obj->control_type == CT_AI)
return;
#endif
pi = &obj->mtype.phys_info;
do_physics_sim_rot(obj);
if (!(pi->velocity.x || pi->velocity.y || pi->velocity.z || pi->thrust.x || pi->thrust.y || pi->thrust.z))
return;
objnum = obj-Objects;
n_phys_segs = 0;
disable_new_fvi_stuff = (obj->type != OBJ_PLAYER);
sim_time = FrameTime;
//debug_obj = obj;
#ifdef EXTRA_DEBUG
if (obj == debug_obj) {
printf("object %d:\n start pos = %x %x %x\n",objnum,XYZ(&obj->pos));
printf(" thrust = %x %x %x\n",XYZ(&obj->mtype.phys_info.thrust));
printf(" sim_time = %x\n",sim_time);
}
//check for correct object segment
if(!get_seg_masks(&obj->pos,obj->segnum,0).centermask==0) {
#ifndef NDEBUG
mprintf((0,"Warning: object %d not in given seg!\n",objnum));
#endif
//Int3(); Removed by Rob 10/5/94
if (!update_object_seg(obj)) {
#ifndef NDEBUG
mprintf((0,"Warning: can't find seg for object %d - moving\n",objnum));
#endif
if (!(Game_mode & GM_MULTI))
Int3();
compute_segment_center(&obj->pos,&Segments[obj->segnum]);
obj->pos.x += objnum;
}
}
#endif
start_pos = obj->pos;
n_ignore_objs = 0;
Assert(obj->mtype.phys_info.brakes==0); //brakes not used anymore?
//if uses thrust, cannot have zero drag
Assert(!(obj->mtype.phys_info.flags&PF_USES_THRUST) || obj->mtype.phys_info.drag!=0);
//mprintf((0,"thrust=%x speed=%x\n",vm_vec_mag(&obj->mtype.phys_info.thrust),vm_vec_mag(&obj->mtype.phys_info.velocity)));
//do thrust & drag
if ((drag = obj->mtype.phys_info.drag) != 0) {
int count;
vms_vector accel;
fix r,k;
count = sim_time / FT;
r = sim_time % FT;
k = fixdiv(r,FT);
if (obj->mtype.phys_info.flags & PF_USES_THRUST) {
vm_vec_copy_scale(&accel,&obj->mtype.phys_info.thrust,fixdiv(f1_0,obj->mtype.phys_info.mass));
while (count--) {
vm_vec_add2(&obj->mtype.phys_info.velocity,&accel);
vm_vec_scale(&obj->mtype.phys_info.velocity,f1_0-drag);
}
//do linear scale on remaining bit of time
vm_vec_scale_add2(&obj->mtype.phys_info.velocity,&accel,k);
vm_vec_scale(&obj->mtype.phys_info.velocity,f1_0-fixmul(k,drag));
}
else {
fix total_drag=f1_0;
while (count--)
total_drag = fixmul(total_drag,f1_0-drag);
//do linear scale on remaining bit of time
total_drag = fixmul(total_drag,f1_0-fixmul(k,drag));
vm_vec_scale(&obj->mtype.phys_info.velocity,total_drag);
}
}
#ifdef EXTRA_DEBUG
if (obj == debug_obj)
printf(" velocity = %x %x %x\n",XYZ(&obj->mtype.phys_info.velocity));
#endif
do {
try_again = 0;
//Move the object
vm_vec_copy_scale(&frame_vec, &obj->mtype.phys_info.velocity, sim_time);
#ifdef EXTRA_DEBUG
if (obj == debug_obj)
printf(" pass %d, frame_vec = %x %x %x\n",count,XYZ(&frame_vec));
#endif
if ( (frame_vec.x==0) && (frame_vec.y==0) && (frame_vec.z==0) )
break;
count++;
// If retry count is getting large, then we are trying to do something stupid.
if ( count > 3) {
if (obj->type == OBJ_PLAYER) {
if (count > 8)
break;
} else
break;
}
vm_vec_add(&new_pos,&obj->pos,&frame_vec);
#ifdef EXTRA_DEBUG
if (obj == debug_obj)
printf(" desired_pos = %x %x %x\n",XYZ(&new_pos));
#endif
ignore_obj_list[n_ignore_objs] = -1;
#ifdef EXTRA_DEBUG
if (obj == debug_obj) {
printf(" FVI parms: p0 = %8x %8x %8x, segnum=%x, size=%x\n",XYZ(&obj->pos),obj->segnum,obj->size);
printf(" p1 = %8x %8x %8x\n",XYZ(&new_pos));
}
#endif
fq.p0 = &obj->pos;
fq.startseg = obj->segnum;
fq.p1 = &new_pos;
fq.rad = obj->size;
fq.thisobjnum = objnum;
fq.ignore_obj_list = ignore_obj_list;
fq.flags = FQ_CHECK_OBJS;
if (obj->type == OBJ_WEAPON)
fq.flags |= FQ_TRANSPOINT;
if (obj->type == OBJ_PLAYER)
fq.flags |= FQ_GET_SEGLIST;
//@@ if (get_seg_masks(&obj->pos,obj->segnum,0).centermask!=0)
//@@ Int3();
save_p0 = *fq.p0;
save_p1 = *fq.p1;
fate = find_vector_intersection(&fq,&hit_info);
// Matt: Mike's hack.
if (fate == HIT_OBJECT) {
object *objp = &Objects[hit_info.hit_object];
if ((objp->type == OBJ_WEAPON) && (objp->id == PROXIMITY_ID))
count--;
}
#ifndef NDEBUG
if (fate == HIT_BAD_P0) {
mprintf((0,"Warning: Bad p0 in physics! Object = %i, type = %i [%s]\n", obj-Objects, obj->type, Object_type_names[obj->type]));
Int3();
}
#endif
if (obj->type == OBJ_PLAYER) {
int i;
if (n_phys_segs && phys_seglist[n_phys_segs-1]==hit_info.seglist[0])
n_phys_segs--;
for (i=0;(i<hit_info.n_segs) && (n_phys_segs<MAX_FVI_SEGS-1); )
phys_seglist[n_phys_segs++] = hit_info.seglist[i++];
}
#ifdef EXTRA_DEBUG
if (obj == debug_obj)
printf(" fate = %d, hit_pnt = %8x %8x %8x\n",fate,XYZ(&hit_info.hit_pnt));;
#endif
ipos = hit_info.hit_pnt;
iseg = hit_info.hit_seg;
WallHitSide = hit_info.hit_side;
WallHitSeg = hit_info.hit_side_seg;
if (iseg==-1) { //some sort of horrible error
#ifndef NDEBUG
mprintf((1,"iseg==-1 in physics! Object = %i, type = %i (%s)\n", obj-Objects, obj->type, Object_type_names[obj->type]));
#endif
//Int3();
//compute_segment_center(&ipos,&Segments[obj->segnum]);
//ipos.x += objnum;
//iseg = obj->segnum;
//fate = HIT_NONE;
if (obj->type == OBJ_WEAPON)
obj->flags |= OF_SHOULD_BE_DEAD;
break;
}
Assert(!((fate==HIT_WALL) && ((WallHitSeg == -1) || (WallHitSeg > Highest_segment_index))));
//if(!get_seg_masks(&hit_info.hit_pnt,hit_info.hit_seg,0).centermask==0)
// Int3();
save_pos = obj->pos; //save the object's position
save_seg = obj->segnum;
// update object's position and segment number
obj->pos = ipos;
#ifdef EXTRA_DEBUG
if (obj == debug_obj)
printf(" new pos = %x %x %x\n",XYZ(&obj->pos));
#endif
if ( iseg != obj->segnum )
obj_relink(objnum, iseg );
//if start point not in segment, move object to center of segment
if (get_seg_masks(&obj->pos,obj->segnum,0).centermask!=0) {
int n;
if ((n=find_object_seg(obj))==-1) {
//Int3();
if (obj->type==OBJ_PLAYER && (n=find_point_seg(&obj->last_pos,obj->segnum))!=-1) {
obj->pos = obj->last_pos;
obj_relink(objnum, n );
}
else {
compute_segment_center(&obj->pos,&Segments[obj->segnum]);
obj->pos.x += objnum;
}
if (obj->type == OBJ_WEAPON)
obj->flags |= OF_SHOULD_BE_DEAD;
}
return;
}
//calulate new sim time
{
//vms_vector moved_vec;
vms_vector moved_vec_n;
fix attempted_dist,actual_dist;
actual_dist = vm_vec_normalized_dir(&moved_vec_n,&obj->pos,&save_pos);
if (fate==HIT_WALL && vm_vec_dot(&moved_vec_n,&frame_vec) < 0) { //moved backwards
//don't change position or sim_time
//******* mprintf((0,"Obj %d moved backwards\n",obj-Objects));
#ifdef EXTRA_DEBUG
if (obj == debug_obj)
printf(" Warning: moved backwards!\n");
#endif
obj->pos = save_pos;
//iseg = obj->segnum; //don't change segment
obj_relink(objnum, save_seg );
moved_time = 0;
}
else {
fix old_sim_time;
//if (obj == debug_obj)
// printf(" moved_vec = %x %x %x\n",XYZ(&moved_vec));
attempted_dist = vm_vec_mag(&frame_vec);
old_sim_time = sim_time;
sim_time = fixmuldiv(sim_time,attempted_dist-actual_dist,attempted_dist);
moved_time = old_sim_time - sim_time;
if (sim_time < 0 || sim_time>old_sim_time) {
#ifndef NDEBUG
mprintf((0,"Bogus sim_time = %x, old = %x\n",sim_time,old_sim_time));
if (obj == debug_obj)
printf(" Bogus sim_time = %x, old = %x, attempted_dist = %x, actual_dist = %x\n",sim_time,old_sim_time,attempted_dist,actual_dist);
//Int3(); Removed by Rob
#endif
sim_time = old_sim_time;
//WHY DOES THIS HAPPEN??
moved_time = 0;
}
}
#ifdef EXTRA_DEBUG
if (obj == debug_obj)
printf(" new sim_time = %x\n",sim_time);
#endif
}
switch( fate ) {
case HIT_WALL: {
vms_vector moved_v;
//@@fix total_d,moved_d;
fix hit_speed,wall_part;
// Find hit speed
vm_vec_sub(&moved_v,&obj->pos,&save_pos);
wall_part = vm_vec_dot(&moved_v,&hit_info.hit_wallnorm);
if (wall_part != 0 && moved_time>0 && (hit_speed=-fixdiv(wall_part,moved_time))>0)
collide_object_with_wall( obj, hit_speed, WallHitSeg, WallHitSide, &hit_info.hit_pnt );
else
scrape_object_on_wall(obj, WallHitSeg, WallHitSide, &hit_info.hit_pnt );
Assert( WallHitSeg > -1 );
Assert( WallHitSide > -1 );
if ( !(obj->flags&OF_SHOULD_BE_DEAD) ) {
Assert(! (obj->mtype.phys_info.flags & PF_STICK && obj->mtype.phys_info.flags & PF_BOUNCE)); //can't be bounce and stick
if (obj->mtype.phys_info.flags & PF_STICK) { //stop moving
// mprintf((0, "Object %i stuck at %i:%i\n", obj-Objects, WallHitSeg, WallHitSide));
add_stuck_object(obj, WallHitSeg, WallHitSide);
vm_vec_zero(&obj->mtype.phys_info.velocity);
obj_stopped = 1;
try_again = 0;
}
else { // Slide object along wall
//We're constrained by wall, so subtract wall part from
//velocity vector
wall_part = vm_vec_dot(&hit_info.hit_wallnorm,&obj->mtype.phys_info.velocity);
if (obj->mtype.phys_info.flags & PF_BOUNCE) //bounce off wall
wall_part *= 2; //Subtract out wall part twice to achieve bounce
vm_vec_scale_add2(&obj->mtype.phys_info.velocity,&hit_info.hit_wallnorm,-wall_part);
#ifdef EXTRA_DEBUG
if (obj == debug_obj) {
printf(" sliding - wall_norm %x %x %x\n",wall_part,XYZ(&hit_info.hit_wallnorm));
printf(" wall_part %x, new velocity = %x %x %x\n",wall_part,XYZ(&obj->mtype.phys_info.velocity));
}
#endif
try_again = 1;
}
}
break;
}
case HIT_OBJECT: {
vms_vector old_vel;
// Mark the hit object so that on a retry the fvi code
// ignores this object.
Assert(hit_info.hit_object != -1);
// Calculcate the hit point between the two objects.
{ vms_vector *ppos0, *ppos1, pos_hit;
fix size0, size1;
ppos0 = &Objects[hit_info.hit_object].pos;
ppos1 = &obj->pos;
size0 = Objects[hit_info.hit_object].size;
size1 = obj->size;
Assert(size0+size1 != 0); // Error, both sizes are 0, so how did they collide, anyway?!?
//vm_vec_scale(vm_vec_sub(&pos_hit, ppos1, ppos0), fixdiv(size0, size0 + size1));
//vm_vec_add2(&pos_hit, ppos0);
vm_vec_sub(&pos_hit, ppos1, ppos0);
vm_vec_scale_add(&pos_hit,ppos0,&pos_hit,fixdiv(size0, size0 + size1));
old_vel = obj->mtype.phys_info.velocity;
collide_two_objects( obj, &Objects[hit_info.hit_object], &pos_hit);
}
// Let object continue its movement
if ( !(obj->flags&OF_SHOULD_BE_DEAD) ) {
//obj->pos = save_pos;
if (obj->mtype.phys_info.flags&PF_PERSISTENT || (old_vel.x == obj->mtype.phys_info.velocity.x && old_vel.y == obj->mtype.phys_info.velocity.y && old_vel.z == obj->mtype.phys_info.velocity.z)) {
//if (Objects[hit_info.hit_object].type == OBJ_POWERUP)
ignore_obj_list[n_ignore_objs++] = hit_info.hit_object;
try_again = 1;
}
}
break;
}
case HIT_NONE:
break;
#ifndef NDEBUG
case HIT_BAD_P0:
Int3(); // Unexpected collision type: start point not in specified segment.
mprintf((0,"Warning: Bad p0 in physics!!!\n"));
break;
default:
// Unknown collision type returned from find_vector_intersection!!
Int3();
break;
#endif
}
} while ( try_again );
// Pass retry count info to AI.
if (obj->control_type == CT_AI) {
if (count > 0) {
Ai_local_info[objnum].retry_count = count-1;
Total_retries += count-1;
Total_sims++;
}
}
if (! obj_stopped) { //Set velocity from actual movement
vms_vector moved_vec;
vm_vec_sub(&moved_vec,&obj->pos,&start_pos);
vm_vec_copy_scale(&obj->mtype.phys_info.velocity,&moved_vec,fixdiv(f1_0,FrameTime));
#ifdef BUMP_HACK
if (obj==ConsoleObject && (obj->mtype.phys_info.velocity.x==0 && obj->mtype.phys_info.velocity.y==0 && obj->mtype.phys_info.velocity.z==0) &&
!(obj->mtype.phys_info.thrust.x==0 && obj->mtype.phys_info.thrust.y==0 && obj->mtype.phys_info.thrust.z==0)) {
vms_vector center,bump_vec;
//bump player a little towards center of segment to unstick
compute_segment_center(¢er,&Segments[obj->segnum]);
vm_vec_normalized_dir_quick(&bump_vec,¢er,&obj->pos);
vm_vec_scale_add2(&obj->pos,&bump_vec,obj->size/5);
}
#endif
}
//Assert(check_point_in_seg(&obj->pos,obj->segnum,0).centermask==0);
//if (obj->control_type == CT_FLYING)
if (obj->mtype.phys_info.flags & PF_LEVELLING)
do_physics_align_object( obj );
//hack to keep player from going through closed doors
if (obj->type==OBJ_PLAYER && obj->segnum!=orig_segnum && (Physics_cheat_flag!=0xBADA55) ) {
int sidenum;
sidenum = find_connect_side(&Segments[obj->segnum],&Segments[orig_segnum]);
if (sidenum != -1) {
if (! (WALL_IS_DOORWAY(&Segments[orig_segnum],sidenum) & WID_FLY_FLAG)) {
side *s;
int vertnum,num_faces,i;
fix dist;
int vertex_list[6];
//bump object back
s = &Segments[orig_segnum].sides[sidenum];
create_abs_vertex_lists( &num_faces, vertex_list, orig_segnum, sidenum);
//let's pretend this wall is not triangulated
vertnum = vertex_list[0];
for (i=1;i<4;i++)
if (vertex_list[i] < vertnum)
vertnum = vertex_list[i];
#ifdef COMPACT_SEGS
{
vms_vector _vn;
get_side_normal(&Segments[orig_segnum], sidenum, 0, &_vn );
dist = vm_dist_to_plane(&start_pos, &_vn, &Vertices[vertnum]);
vm_vec_scale_add(&obj->pos,&start_pos,&_vn,obj->size-dist);
}
#else
dist = vm_dist_to_plane(&start_pos, &s->normals[0], &Vertices[vertnum]);
vm_vec_scale_add(&obj->pos,&start_pos,&s->normals[0],obj->size-dist);
#endif
update_object_seg(obj);
}
}
}
//--WE ALWYS WANT THIS IN, MATT AND MIKE DECISION ON 12/10/94, TWO MONTHS AFTER FINAL #ifndef NDEBUG
//if end point not in segment, move object to last pos, or segment center
if (get_seg_masks(&obj->pos,obj->segnum,0).centermask!=0) {
if (find_object_seg(obj)==-1) {
int n;
//Int3();
if (obj->type==OBJ_PLAYER && (n=find_point_seg(&obj->last_pos,obj->segnum))!=-1) {
obj->pos = obj->last_pos;
obj_relink(objnum, n );
}
else {
compute_segment_center(&obj->pos,&Segments[obj->segnum]);
obj->pos.x += objnum;
}
if (obj->type == OBJ_WEAPON)
obj->flags |= OF_SHOULD_BE_DEAD;
}
}
//--WE ALWYS WANT THIS IN, MATT AND MIKE DECISION ON 12/10/94, TWO MONTHS AFTER FINAL #endif
}
// ********************************************************************************************
// Engages autopilot
// This does:
// * Control switched from player to AI
// * Time compression to 32x
// * Lock time compression -WMC
// * Tell AI to fly to targeted Nav Point (for all nav-status wings/ships)
// * Sets max waypoint speed to the best-speed of the slowest ship tagged
bool StartAutopilot()
{
// Check for support ship and dismiss it if it is not doing anything.
// If the support ship is doing something then tell the user such.
for ( object *objp = GET_FIRST(&obj_used_list); objp !=END_OF_LIST(&obj_used_list); objp = GET_NEXT(objp) )
{
if ((objp->type == OBJ_SHIP) && !(objp->flags & OF_SHOULD_BE_DEAD))
{
Assertion((objp->instance >= 0) && (objp->instance < MAX_SHIPS),
"objp does not have a valid pointer to a ship. Pointer is %d, which is smaller than 0 or bigger than %d",
objp->instance, MAX_SHIPS);
ship *shipp = &Ships[objp->instance];
if (shipp->team != Player_ship->team)
continue;
Assertion((shipp->ship_info_index >= 0) && (shipp->ship_info_index < MAX_SHIP_CLASSES),
"Ship '%s' does not have a valid pointer to a ship class. Pointer is %d, which is smaller than 0 or bigger than %d",
shipp->ship_name, shipp->ship_info_index, MAX_SHIP_CLASSES);
ship_info *sip = &Ship_info[shipp->ship_info_index];
if ( !(sip->flags & SIF_SUPPORT) )
continue;
// don't deal with dying or departing support ships
if ( shipp->flags & (SF_DYING | SF_DEPARTING) )
continue;
Assert(shipp->ai_index != -1);
ai_info* support_ship_aip = &(Ai_info[Ships[objp->instance].ai_index]);
// is support ship trying to rearm-repair
if ( ai_find_goal_index( support_ship_aip->goals, AI_GOAL_REARM_REPAIR ) == -1 ) {
// no, so tell it to depart
ai_add_ship_goal_player( AIG_TYPE_PLAYER_SHIP, AI_GOAL_WARP, -1, NULL, support_ship_aip );
} else {
// yes
send_autopilot_msgID(NP_MSG_FAIL_SUPPORT_WORKING);
return false;
}
}
}
if (!CanAutopilot())
return false;
AutoPilotEngaged = true;
// find the ship that is "leading" all of the ships when the player starts
// autopilot
// by default the ship that is leading the autopilot session the player's
// wing leader (if the player is the wing leader then it will be the
// player).
// TODO:implement a way to allow a FREDer to say a different ship is leader
Autopilot_flight_leader = get_wing_leader(Player_ship->wingnum);
if ( Autopilot_flight_leader == NULL ) {
// force player to be the leader if he doesn't have a wing
Autopilot_flight_leader = Player_obj;
}
if (The_mission.flags & MISSION_FLAG_USE_AP_CINEMATICS)
LockAPConv = timestamp(); // lock convergence instantly
else
LockAPConv = timestamp(3000); // 3 seconds before we lock convergence
Player_use_ai = 1;
set_time_compression(1);
lock_time_compression(true);
// determine speed cap
int i,j, wcount=1, tc_factor=1;
float speed_cap = 1000000.0; // 1m is a safe starting point
float radius = Player_obj->radius, distance = 0.0f, ftemp;
bool capshipPresent = false;
int capship_counts[3]; // three size classes
capship_counts[0] = 0;
capship_counts[1] = 0;
capship_counts[2] = 0;
int capship_placed[3]; // three size classes
capship_placed[0] = 0;
capship_placed[1] = 0;
capship_placed[2] = 0;
float capship_spreads[3];
capship_spreads[0] = 0.0f;
capship_spreads[1] = 0.0f;
capship_spreads[2] = 0.0f;
SCP_vector<int> capIndexes;
// empty the autopilot wings map
autopilot_wings.clear();
// vars for usage w/ cinematic
vec3d pos, norm1, perp, tpos, rpos = Player_obj->pos, zero;
memset(&zero, 0, sizeof(vec3d));
// instantly turn player toward tpos
if (The_mission.flags & MISSION_FLAG_USE_AP_CINEMATICS)
{
vm_vec_sub(&norm1, Navs[CurrentNav].GetPosition(), &Player_obj->pos);
vm_vector_2_matrix(&Player_obj->orient, &norm1, NULL, NULL);
}
for (i = 0; i < MAX_SHIPS; i++)
{
if (Ships[i].objnum != -1 &&
(Ships[i].flags2 & SF2_NAVPOINT_CARRY ||
(Ships[i].wingnum != -1 && Wings[Ships[i].wingnum].flags & WF_NAV_CARRY)
)
)
{
if (speed_cap > vm_vec_mag(&Ship_info[Ships[i].ship_info_index].max_vel))
speed_cap = vm_vec_mag(&Ship_info[Ships[i].ship_info_index].max_vel);
}
}
// damp speed_cap to 90% of actual -- to make sure ships stay in formation
if (The_mission.flags & MISSION_FLAG_USE_AP_CINEMATICS)
speed_cap = 0.90f * speed_cap;
if ( speed_cap < 1.0f ) {
/* We need to deal with this so that incorrectly flagged ships will not
cause the engine to fail to limit all the ships speeds correctly. */
Warning(LOCATION, "Ship speed cap is way too small (%f)!\n"
"This is normally caused by a ship that has nav-carry-status set, but cannot move itself (like a Cargo container).\n"
"Speed cap has been set to 1.0 m/s.",
speed_cap);
speed_cap = 1.0f;
}
ramp_bias = speed_cap/50.0f;
// assign ship goals
// when assigning goals to individual ships only do so if Ships[shipnum].wingnum != -1
// we will assign wing goals below
for (i = 0; i < MAX_SHIPS; i++)
{
if (Ships[i].objnum != -1 &&
(Ships[i].flags2 & SF2_NAVPOINT_CARRY ||
(Ships[i].wingnum != -1 && Wings[Ships[i].wingnum].flags & WF_NAV_CARRY)
)
)
{
// do we have capital ships in the area?
if (Ship_info[Ships[i].ship_info_index].flags
& ( SIF_CRUISER | SIF_CAPITAL | SIF_SUPERCAP | SIF_CORVETTE | SIF_AWACS | SIF_GAS_MINER | SIF_FREIGHTER | SIF_TRANSPORT))
{
capshipPresent = true;
capIndexes.push_back(i);
// ok.. what size class
if (Ship_info[Ships[i].ship_info_index].flags & (SIF_CAPITAL | SIF_SUPERCAP))
{
capship_counts[0]++;
if (capship_spreads[0] < Objects[Ships[i].objnum].radius)
capship_spreads[0] = Objects[Ships[i].objnum].radius;
}
else if (Ship_info[Ships[i].ship_info_index].flags & (SIF_CORVETTE))
{
capship_counts[1]++;
if (capship_spreads[1] < Objects[Ships[i].objnum].radius)
capship_spreads[1] = Objects[Ships[i].objnum].radius;
}
else
{
capship_counts[2]++;
if (capship_spreads[2] < Objects[Ships[i].objnum].radius)
capship_spreads[2] = Objects[Ships[i].objnum].radius;
}
}
// check for bigger radius for usage later
/*if (!vm_vec_cmp(&rpos, &Player_obj->pos))
// want to make sure rpos isn't player pos - we can worry about it being largest object's later
{
rpos = Objects[Ships[i].objnum].pos;
}*/
if (Objects[Ships[i].objnum].radius > radius)
{
rpos = Objects[Ships[i].objnum].pos;
radius = Objects[Ships[i].objnum].radius;
}
if (The_mission.flags & MISSION_FLAG_USE_AP_CINEMATICS)
{// instantly turn the ship to match the direction player is looking
//vm_vec_sub(&norm1, Navs[CurrentNav].GetPosition(), &Player_obj->pos);
vm_vector_2_matrix(&Objects[Ships[i].objnum].orient, &norm1, NULL, NULL);
}
// snap wings into formation
if (The_mission.flags & MISSION_FLAG_USE_AP_CINEMATICS && // only if using cinematics
(Ships[i].wingnum != -1 && Wings[Ships[i].wingnum].flags & WF_NAV_CARRY) // only if in a wing
&& Autopilot_flight_leader != &Objects[Ships[i].objnum]) //only if not flight leader's object
{
ai_info *aip = &Ai_info[Ships[i].ai_index];
int wingnum = aip->wing, wing_index = get_wing_index(&Objects[Ships[i].objnum], wingnum);
vec3d goal_point;
object *leader_objp = get_wing_leader(wingnum);
if (leader_objp != &Objects[Ships[i].objnum])
{
// not leader.. get our position relative to leader
get_absolute_wing_pos_autopilot(&goal_point, leader_objp, wing_index, aip->ai_flags & AIF_FORMATION_OBJECT);
}
else
{
ai_clear_wing_goals(wingnum);
j = 1+int( (float)floor(double(wcount-1)/2.0) );
switch (wcount % 2)
{
case 1: // back-left
vm_vec_add(&perp, &zero, &Autopilot_flight_leader->orient.vec.rvec);
//vm_vec_sub(&perp, &perp, &Player_obj->orient.vec.fvec);
vm_vec_normalize(&perp);
vm_vec_scale(&perp, -166.0f*j); // 166m is supposedly the optimal range according to tolwyn
vm_vec_add(&goal_point, &Autopilot_flight_leader->pos, &perp);
break;
default: //back-right
case 0:
vm_vec_add(&perp, &zero, &Autopilot_flight_leader->orient.vec.rvec);
//vm_vec_sub(&perp, &perp, &Player_obj->orient.vec.fvec);
vm_vec_normalize(&perp);
vm_vec_scale(&perp, 166.0f*j);
vm_vec_add(&goal_point, &Autopilot_flight_leader->pos, &perp);
break;
}
autopilot_wings[wingnum] = wcount;
wcount++;
}
Objects[Ships[i].objnum].pos = goal_point;
if (vm_vec_dist_quick(&Autopilot_flight_leader->pos, &Objects[Ships[i].objnum].pos) > distance)
{
distance = vm_vec_dist_quick(&Autopilot_flight_leader->pos, &Objects[Ships[i].objnum].pos);
}
}
// lock primary and secondary weapons
if ( LockWeaponsDuringAutopilot )
Ships[i].flags2 |= (SF2_PRIMARIES_LOCKED | SF2_SECONDARIES_LOCKED);
// clear the ship goals and cap the waypoint speed
ai_clear_ship_goals(&Ai_info[Ships[i].ai_index]);
Ai_info[Ships[i].ai_index].waypoint_speed_cap = (int)speed_cap;
// if they're not part of a wing set their goal
if (Ships[i].wingnum == -1 || The_mission.flags & MISSION_FLAG_USE_AP_CINEMATICS)
{
if (Navs[CurrentNav].flags & NP_WAYPOINT)
{
ai_add_ship_goal_player( AIG_TYPE_PLAYER_SHIP, AI_GOAL_WAYPOINTS_ONCE, 0, ((waypoint_list*)Navs[CurrentNav].target_obj)->get_name(), &Ai_info[Ships[i].ai_index] );
//fixup has to wait until after wing goals
}
else
{
ai_add_ship_goal_player( AIG_TYPE_PLAYER_SHIP, AI_GOAL_FLY_TO_SHIP, 0, ((ship*)Navs[CurrentNav].target_obj)->ship_name, &Ai_info[Ships[i].ai_index] );
}
}
}
}
// assign wing goals
if (!(The_mission.flags & MISSION_FLAG_USE_AP_CINEMATICS))
{
for (i = 0; i < MAX_WINGS; i++)
{
if (Wings[i].flags & WF_NAV_CARRY )
{
//ai_add_ship_goal_player( int type, int mode, int submode, char *shipname, ai_info *aip );
//ai_add_wing_goal_player( AIG_TYPE_PLAYER_WING, AI_GOAL_STAY_NEAR_SHIP, 0, target_shipname, wingnum );
//ai_add_wing_goal_player( AIG_TYPE_PLAYER_WING, AI_GOAL_WAYPOINTS_ONCE, 0, target_shipname, wingnum );
//ai_clear_ship_goals( &(Ai_info[Ships[num].ai_index]) );
ai_clear_wing_goals( i );
if (Navs[CurrentNav].flags & NP_WAYPOINT)
{
ai_add_wing_goal_player( AIG_TYPE_PLAYER_WING, AI_GOAL_WAYPOINTS_ONCE, 0, ((waypoint_list*)Navs[CurrentNav].target_obj)->get_name(), i );
// "fix up" the goal
for (j = 0; j < MAX_AI_GOALS; j++)
{
if (Wings[i].ai_goals[j].ai_mode == AI_GOAL_WAYPOINTS_ONCE ||
Wings[i].ai_goals[j].ai_mode == AIM_WAYPOINTS )
{
autopilot_ai_waypoint_goal_fixup(&(Wings[i].ai_goals[j]));
}
}
}
else
{
ai_add_wing_goal_player( AIG_TYPE_PLAYER_WING, AI_GOAL_FLY_TO_SHIP, 0, ((ship*)Navs[CurrentNav].target_obj)->ship_name, i );
}
}
}
}
// fixup has to go down here because ships are assigned goals during wing goals as well
for (i = 0; i < MAX_SHIPS; i++)
{
if (Ships[i].objnum != -1)
{
if (Ships[i].flags2 & SF2_NAVPOINT_CARRY ||
(Ships[i].wingnum != -1 && Wings[Ships[i].wingnum].flags & WF_NAV_CARRY))
for (j = 0; j < MAX_AI_GOALS; j++)
{
if (Ai_info[Ships[i].ai_index].goals[j].ai_mode == AI_GOAL_WAYPOINTS_ONCE ||
Ai_info[Ships[i].ai_index].goals[j].ai_mode == AIM_WAYPOINTS)
{
autopilot_ai_waypoint_goal_fixup( &(Ai_info[Ships[i].ai_index].goals[j]) );
// formation fixup
//ai_form_on_wing(&Objects[Ships[i].objnum], &Objects[Player_ship->objnum]);
}
}
}
}
start_dist = DistanceTo(CurrentNav);
// ----------------------------- setup cinematic -----------------------------
if (The_mission.flags & MISSION_FLAG_USE_AP_CINEMATICS)
{
if (capshipPresent)
{
// position capships
vec3d right, front, up, offset;
for (SCP_vector<int>::iterator idx = capIndexes.begin(); idx != capIndexes.end(); ++idx)
{
vm_vec_add(&right, &Autopilot_flight_leader->orient.vec.rvec, &zero);
vm_vec_add(&front, &Autopilot_flight_leader->orient.vec.fvec, &zero);
vm_vec_add(&up, &Autopilot_flight_leader->orient.vec.uvec, &zero);
vm_vec_add(&offset, &zero, &zero);
if (Ship_info[Ships[*idx].ship_info_index].flags & (SIF_CAPITAL | SIF_SUPERCAP))
{
//0 - below - three lines of position
// front/back to zero
vm_vec_add(&front, &zero, &zero);
// position below
vm_vec_scale(&up, capship_spreads[0]); // scale the up vector by the radius of the largest ship in this formation part
switch (capship_placed[0] % 3)
{
case 1: // right
vm_vec_scale(&right, capship_spreads[0]);
break;
case 2: // left
vm_vec_scale(&right, -capship_spreads[0]);
break;
default: // straight
case 0:
vm_vec_add(&right, &zero, &zero);
vm_vec_scale(&up, 1.5); // add an extra half-radius
break;
}
// scale by row
vm_vec_scale(&right, (1+((float)floor((float)capship_placed[0]/3))));
vm_vec_scale(&up, -(1+((float)floor((float)capship_placed[0]/3))));
capship_placed[0]++;
}
else if (Ship_info[Ships[*idx].ship_info_index].flags & SIF_CORVETTE)
{
//1 above - 3 lines of position
// front/back to zero
vm_vec_add(&front, &zero, &zero);
// position below
vm_vec_scale(&up, capship_spreads[1]); // scale the up vector by the radius of the largest ship in this formation part
switch (capship_placed[1] % 3)
{
case 1: // right
vm_vec_scale(&right, capship_spreads[1]);
break;
case 2: // left
vm_vec_scale(&right, -capship_spreads[1]);
break;
default: // straight
case 0:
vm_vec_add(&right, &zero, &zero);
vm_vec_scale(&up, 1.5); // add an extra half-radius
break;
}
// scale by row
vm_vec_scale(&right, (1+((float)floor((float)capship_placed[1]/3))));
vm_vec_scale(&up, (1+((float)floor((float)capship_placed[1]/3))));
// move ourselves up and out of the way of the smaller ships
vm_vec_add(&perp, &Autopilot_flight_leader->orient.vec.uvec, &zero);
vm_vec_scale(&perp, capship_spreads[2]);
vm_vec_add(&up, &up, &perp);
capship_placed[1]++;
}
else
{
//2 either side - 6 lines of position (right (dir, front, back), left (dir, front, back) )
// placing pattern: right, left, front right, front left, rear right, rear left
// up/down to zero
vm_vec_add(&up, &zero, &zero);
switch (capship_placed[2] % 6)
{
case 5: // rear left
vm_vec_scale(&right, -capship_spreads[2]);
vm_vec_scale(&front, -capship_spreads[2]);
break;
case 4: // rear right
vm_vec_scale(&right, capship_spreads[2]);
vm_vec_scale(&front, -capship_spreads[2]);
break;
case 3: // front left
vm_vec_scale(&right, -capship_spreads[2]);
vm_vec_scale(&front, capship_spreads[2]);
break;
case 2: // front right
vm_vec_scale(&right, capship_spreads[2]);
vm_vec_scale(&front, capship_spreads[2]);
break;
case 1: // straight left
vm_vec_scale(&right, 1.5);
vm_vec_scale(&right, -capship_spreads[2]);
vm_vec_add(&front, &zero, &zero);
break;
default: // straight right
case 0:
vm_vec_scale(&right, 1.5);
vm_vec_scale(&right, capship_spreads[2]);
vm_vec_add(&front, &zero, &zero);
break;
}
// these ships seem to pack a little too tightly
vm_vec_scale(&right, 2*(1+((float)floor((float)capship_placed[2]/3))));
vm_vec_scale(&front, 2*(1+((float)floor((float)capship_placed[2]/3))));
// move "out" by 166*(wcount-1) so we don't bump into fighters
vm_vec_add(&perp, &Autopilot_flight_leader->orient.vec.rvec, &zero);
vm_vec_scale(&perp, 166.0f*float(wcount-1));
if ( (capship_placed[2] % 2) == 0)
vm_vec_add(&right, &right, &perp);
else
vm_vec_sub(&right, &right, &perp);
capship_placed[2]++;
}
// integrate the up/down componant
vm_vec_add(&offset, &offset, &up);
//integrate the left/right componant
vm_vec_add(&offset, &offset, &right);
//integrate the left/right componant
vm_vec_add(&offset, &offset, &front);
// global scale the position by 50%
//vm_vec_scale(&offset, 1.5);
vm_vec_add(&Objects[Ships[*idx].objnum].pos, &Autopilot_flight_leader->pos, &offset);
if (vm_vec_dist_quick(&Autopilot_flight_leader->pos, &Objects[Ships[*idx].objnum].pos) > distance)
{
distance = vm_vec_dist_quick(&Autopilot_flight_leader->pos, &Objects[Ships[*idx].objnum].pos);
}
}
}
ftemp = floor(Autopilot_flight_leader->phys_info.max_vel.xyz.z/speed_cap);
if (ftemp >= 2.0f && ftemp < 4.0f)
tc_factor = 2;
else if (ftemp >= 4.0f && ftemp < 8.0f)
tc_factor = 4;
else if (ftemp >= 8.0f)
tc_factor = 8;
tpos = *Navs[CurrentNav].GetPosition();
// determine distance toward nav at which camera will be
vm_vec_sub(&pos, &tpos, &Autopilot_flight_leader->pos);
vm_vec_normalize(&pos); // pos is now a unit vector in the direction we will be moving the camera
//norm1 = pos;
vm_vec_scale(&pos, 5*speed_cap*tc_factor); // pos is now scaled by 5 times the speed (5 seconds ahead)
vm_vec_add(&pos, &pos, &Autopilot_flight_leader->pos); // pos is now 5*speed cap in front of player ship
switch (myrand()%24)
// 8 different ways of getting perp points
// 4 of which will not be used when capships are present (anything below, or straight above)
{
case 1: // down
case 9:
case 16:
if (capship_placed[0] == 0)
vm_vec_sub(&perp, &zero, &Autopilot_flight_leader->orient.vec.uvec);
else
{ // become up-left
vm_vec_add(&perp, &zero, &Autopilot_flight_leader->orient.vec.uvec);
vm_vec_sub(&perp, &perp, &Autopilot_flight_leader->orient.vec.rvec);
}
break;
case 2: // up
case 10:
case 23:
vm_vec_add(&perp, &perp, &Autopilot_flight_leader->orient.vec.uvec);
if (capshipPresent) // become up-right
vm_vec_add(&perp, &perp, &Autopilot_flight_leader->orient.vec.rvec);
break;
case 3: // left
case 11:
case 22:
vm_vec_sub(&perp, &zero, &Autopilot_flight_leader->orient.vec.rvec);
break;
case 4: // up-left
case 12:
case 21:
vm_vec_sub(&perp, &zero, &Autopilot_flight_leader->orient.vec.rvec);
vm_vec_add(&perp, &perp, &Autopilot_flight_leader->orient.vec.uvec);
break;
case 5: // up-right
case 13:
case 20:
vm_vec_add(&perp, &zero, &Autopilot_flight_leader->orient.vec.rvec);
vm_vec_add(&perp, &perp, &Autopilot_flight_leader->orient.vec.uvec);
break;
case 6: // down-left
case 14:
case 19:
vm_vec_sub(&perp, &zero, &Autopilot_flight_leader->orient.vec.rvec);
if (capship_placed[0] < 2)
vm_vec_sub(&perp, &perp, &Autopilot_flight_leader->orient.vec.uvec);
else
vm_vec_add(&perp, &perp, &Autopilot_flight_leader->orient.vec.uvec);
break;
case 7: // down-right
case 15:
case 18:
vm_vec_add(&perp, &zero, &Autopilot_flight_leader->orient.vec.rvec);
if (capship_placed[0] < 1)
vm_vec_sub(&perp, &perp, &Autopilot_flight_leader->orient.vec.uvec);
else
vm_vec_add(&perp, &perp, &Autopilot_flight_leader->orient.vec.uvec);
break;
default:
case 0: // right
case 8:
case 17:
perp = Autopilot_flight_leader->orient.vec.rvec;
break;
}
vm_vec_normalize(&perp);
//vm_vec_scale(&perp, 2*radius+distance);
vm_vec_scale(&perp, Autopilot_flight_leader->radius+radius);
// randomly scale up/down by up to 20%
j = 20-myrand()%40; // [-20,20]
vm_vec_scale(&perp, 1.0f+(float(j)/100.0f));
vm_vec_add(&cameraPos, &pos, &perp);
if (capshipPresent)
{
vm_vec_normalize(&perp);
// place it behind
//vm_vec_copy_scale(&norm1, &Player_obj->orient.vec.fvec, -2*(Player_obj->radius+radius*(1.0f+(float(j)/100.0f))));
//vm_vec_add(&cameraTarget, &cameraTarget, &norm1);
vm_vec_copy_scale(&cameraTarget,&perp, radius/5.0f);
//vm_vec_scale(&cameraTarget, Player_obj->radius+radius*(1.0f+(float(j)/100.0f)));
//vm_vec_add(&cameraTarget, &pos, &cameraTarget);
//CameraSpeed = (radius+distance)/25;
//vm_vec_add(&cameraTarget, &zero, &perp);
//vm_vec_scale(&CameraVelocity, (radius+distance/100.f));
//vm_vec_scale(&CameraVelocity, 1.0f/float(NPS_TICKRATE*tc_factor));
}
else
{
vm_vec_add(&cameraTarget, &zero, &zero);
//CameraSpeed = 0;
}
//CameraMoving = false;
EndAPCinematic = timestamp((10000*tc_factor)+NPS_TICKRATE); // 10 objective seconds before end of cinematic
MoveCamera = timestamp((5500*tc_factor)+NPS_TICKRATE);
camMovingTime = int(4.5*float(tc_factor));
set_time_compression((float)tc_factor);
}
return true;
}
//compute the corners of a rod. fills in vertbuf.
static int calc_rod_corners(g3s_point *bot_point,fix bot_width,g3s_point *top_point,fix top_width)
{
vms_vector delta_vec,top,tempv,rod_norm;
ubyte codes_and;
int i;
//compute vector from one point to other, do cross product with vector
//from eye to get perpendiclar
vm_vec_sub(&delta_vec,&bot_point->p3_vec,&top_point->p3_vec);
//unscale for aspect
delta_vec.x = fixdiv(delta_vec.x,Matrix_scale.x);
delta_vec.y = fixdiv(delta_vec.y,Matrix_scale.y);
//calc perp vector
//do lots of normalizing to prevent overflowing. When this code works,
//it should be optimized
vm_vec_normalize(&delta_vec);
vm_vec_copy_normalize(&top,&top_point->p3_vec);
vm_vec_cross(&rod_norm,&delta_vec,&top);
vm_vec_normalize(&rod_norm);
//scale for aspect
rod_norm.x = fixmul(rod_norm.x,Matrix_scale.x);
rod_norm.y = fixmul(rod_norm.y,Matrix_scale.y);
//now we have the usable edge. generate four points
//top points
vm_vec_copy_scale(&tempv,&rod_norm,top_width);
tempv.z = 0;
vm_vec_add(&rod_points[0].p3_vec,&top_point->p3_vec,&tempv);
vm_vec_sub(&rod_points[1].p3_vec,&top_point->p3_vec,&tempv);
vm_vec_copy_scale(&tempv,&rod_norm,bot_width);
tempv.z = 0;
vm_vec_sub(&rod_points[2].p3_vec,&bot_point->p3_vec,&tempv);
vm_vec_add(&rod_points[3].p3_vec,&bot_point->p3_vec,&tempv);
//now code the four points
for (i=0,codes_and=0xff;i<4;i++)
codes_and &= g3_code_point(&rod_points[i]);
if (codes_and)
return 1; //1 means off screen
//clear flags for new points (not projected)
for (i=0;i<4;i++)
rod_points[i].p3_flags = 0;
return 0;
}
//called for each level to load & setup the exit sequence
load_endlevel_data(int level_num)
{
char filename[13];
char line[LINE_LEN],*p;
CFILE *ifile;
int var,segnum,sidenum;
int exit_side, i;
int have_binary = 0;
endlevel_data_loaded = 0; //not loaded yet
try_again:
;
if (level_num<0) //secret level
strcpy(filename,Secret_level_names[-level_num-1]);
else //normal level
strcpy(filename,Level_names[level_num-1]);
if (!convert_ext(filename,"END"))
return;
ifile = cfopen(filename,"rb");
if (!ifile) {
convert_ext(filename,"TXB");
ifile = cfopen(filename,"rb");
if (!ifile)
if (level_num==1) {
return; //abort
//Error("Cannot load file text of binary version of <%s>",filename);
}
else {
level_num = 1;
goto try_again;
}
have_binary = 1;
}
//ok...this parser is pretty simple. It ignores comments, but
//everything else must be in the right place
var = 0;
while (cfgets(line,LINE_LEN,ifile)) {
if (have_binary) {
for (i = 0; i < strlen(line) - 1; i++) {
encode_rotate_left(&(line[i]));
line[i] = line[i] ^ BITMAP_TBL_XOR;
encode_rotate_left(&(line[i]));
}
p = line;
}
if ((p=strchr(line,';'))!=NULL)
*p = 0; //cut off comment
for (p=line+strlen(line)-1;p>line && isspace(*p);*p--=0);
for (p=line;isspace(*p);p++);
if (!*p) //empty line
continue;
switch (var) {
case 0: { //ground terrain
int iff_error;
ubyte pal[768];
if (terrain_bm_instance.bm_data)
free(terrain_bm_instance.bm_data);
iff_error = iff_read_bitmap(p,&terrain_bm_instance,BM_LINEAR,pal);
if (iff_error != IFF_NO_ERROR) {
mprintf((1, "File %s - IFF error: %s",p,iff_errormsg(iff_error)));
Error("File %s - IFF error: %s",p,iff_errormsg(iff_error));
}
terrain_bitmap = &terrain_bm_instance;
gr_remap_bitmap_good( terrain_bitmap, pal, iff_transparent_color, -1);
break;
}
case 1: //height map
load_terrain(p);
break;
case 2:
sscanf(p,"%d,%d",&exit_point_bmx,&exit_point_bmy);
break;
case 3: //exit heading
exit_angles.h = i2f(atoi(p))/360;
break;
case 4: { //planet bitmap
int iff_error;
ubyte pal[768];
if (satellite_bm_instance.bm_data)
free(satellite_bm_instance.bm_data);
iff_error = iff_read_bitmap(p,&satellite_bm_instance,BM_LINEAR,pal);
if (iff_error != IFF_NO_ERROR) {
mprintf((1, "File %s - IFF error: %s",p,iff_errormsg(iff_error)));
Error("File %s - IFF error: %s",p,iff_errormsg(iff_error));
}
satellite_bitmap = &satellite_bm_instance;
gr_remap_bitmap_good( satellite_bitmap, pal, iff_transparent_color, -1);
break;
}
case 5: //earth pos
case 7: { //station pos
vms_matrix tm;
vms_angvec ta;
int pitch,head;
sscanf(p,"%d,%d",&head,&pitch);
ta.h = i2f(head)/360;
ta.p = -i2f(pitch)/360;
ta.b = 0;
vm_angles_2_matrix(&tm,&ta);
if (var==5)
satellite_pos = tm.fvec;
//vm_vec_copy_scale(&satellite_pos,&tm.fvec,SATELLITE_DIST);
else
station_pos = tm.fvec;
break;
}
case 6: //planet size
satellite_size = i2f(atoi(p));
break;
}
var++;
}
Assert(var == NUM_VARS);
// OK, now the data is loaded. Initialize everything
//find the exit sequence by searching all segments for a side with
//children == -2
for (segnum=0,exit_segnum=-1;exit_segnum==-1 && segnum<=Highest_segment_index;segnum++)
for (sidenum=0;sidenum<6;sidenum++)
if (Segments[segnum].children[sidenum] == -2) {
exit_segnum = segnum;
exit_side = sidenum;
break;
}
Assert(exit_segnum!=-1);
compute_segment_center(&mine_exit_point,&Segments[exit_segnum]);
extract_orient_from_segment(&mine_exit_orient,&Segments[exit_segnum]);
compute_center_point_on_side(&mine_side_exit_point,&Segments[exit_segnum],exit_side);
vm_vec_scale_add(&mine_ground_exit_point,&mine_exit_point,&mine_exit_orient.uvec,-i2f(20));
//compute orientation of surface
{
vms_vector tv;
vms_matrix exit_orient,tm;
vm_angles_2_matrix(&exit_orient,&exit_angles);
vm_transpose_matrix(&exit_orient);
vm_matrix_x_matrix(&surface_orient,&mine_exit_orient,&exit_orient);
vm_copy_transpose_matrix(&tm,&surface_orient);
vm_vec_rotate(&tv,&station_pos,&tm);
vm_vec_scale_add(&station_pos,&mine_exit_point,&tv,STATION_DIST);
vm_vec_rotate(&tv,&satellite_pos,&tm);
vm_vec_scale_add(&satellite_pos,&mine_exit_point,&tv,SATELLITE_DIST);
vm_vector_2_matrix(&tm,&tv,&surface_orient.uvec,NULL);
vm_vec_copy_scale(&satellite_upvec,&tm.uvec,SATELLITE_HEIGHT);
}
cfclose(ifile);
endlevel_data_loaded = 1;
}
// -----------------------------------------------------------------------------------------------------------
//Simulate a physics object for this frame
void do_physics_sim(object *obj)
{
int ignore_obj_list[MAX_IGNORE_OBJS],n_ignore_objs;
int iseg;
int try_again;
int fate=0;
vms_vector frame_vec; //movement in this frame
vms_vector new_pos,ipos; //position after this frame
int count=0;
int objnum;
int WallHitSeg, WallHitSide;
fvi_info hit_info;
fvi_query fq;
vms_vector save_pos;
int save_seg;
fix drag;
fix sim_time;
vms_vector start_pos;
int obj_stopped=0;
fix moved_time; //how long objected moved before hit something
physics_info *pi;
int orig_segnum = obj->segnum;
fix PhysTime = (FrameTime<F1_0/30?F1_0/30:FrameTime);
Assert(obj->movement_type == MT_PHYSICS);
#ifndef NDEBUG
if (Dont_move_ai_objects)
if (obj->control_type == CT_AI)
return;
#endif
pi = &obj->mtype.phys_info;
do_physics_sim_rot(obj);
if (!(pi->velocity.x || pi->velocity.y || pi->velocity.z || pi->thrust.x || pi->thrust.y || pi->thrust.z))
return;
objnum = obj-Objects;
n_phys_segs = 0;
/* As this engine was not designed for that high FPS as we intend, we use F1_0/30 max. for sim_time to ensure
scaling and dot products stay accurate and reliable. The object position intended for this frame will be scaled down later,
after the main collision-loop is done.
This won't make collision results be equal in all FPS settings, but hopefully more accurate, the higher our FPS are.
*/
sim_time = PhysTime; //FrameTime;
//debug_obj = obj;
#ifdef EXTRA_DEBUG
//check for correct object segment
if(!get_seg_masks(&obj->pos,obj->segnum,0,__FILE__,__LINE__).centermask==0) {
//Int3(); Removed by Rob 10/5/94
if (!update_object_seg(obj)) {
if (!(Game_mode & GM_MULTI))
Int3();
compute_segment_center(&obj->pos,&Segments[obj->segnum]);
obj->pos.x += objnum;
}
}
#endif
start_pos = obj->pos;
n_ignore_objs = 0;
Assert(obj->mtype.phys_info.brakes==0); //brakes not used anymore?
//if uses thrust, cannot have zero drag
Assert(!(obj->mtype.phys_info.flags&PF_USES_THRUST) || obj->mtype.phys_info.drag!=0);
//do thrust & drag
// NOTE: this always must be dependent on FrameTime, if sim_time differs!
if ((drag = obj->mtype.phys_info.drag) != 0) {
int count;
vms_vector accel;
fix r,k,have_accel;
count = FrameTime / FT;
r = FrameTime % FT;
k = fixdiv(r,FT);
if (obj->mtype.phys_info.flags & PF_USES_THRUST) {
vm_vec_copy_scale(&accel,&obj->mtype.phys_info.thrust,fixdiv(f1_0,obj->mtype.phys_info.mass));
have_accel = (accel.x || accel.y || accel.z);
while (count--) {
if (have_accel)
vm_vec_add2(&obj->mtype.phys_info.velocity,&accel);
vm_vec_scale(&obj->mtype.phys_info.velocity,f1_0-drag);
}
//do linear scale on remaining bit of time
vm_vec_scale_add2(&obj->mtype.phys_info.velocity,&accel,k);
if (drag)
vm_vec_scale(&obj->mtype.phys_info.velocity,f1_0-fixmul(k,drag));
}
else if (drag)
{
fix total_drag=f1_0;
while (count--)
total_drag = fixmul(total_drag,f1_0-drag);
//do linear scale on remaining bit of time
total_drag = fixmul(total_drag,f1_0-fixmul(k,drag));
vm_vec_scale(&obj->mtype.phys_info.velocity,total_drag);
}
}
do {
try_again = 0;
//Move the object
vm_vec_copy_scale(&frame_vec, &obj->mtype.phys_info.velocity, sim_time);
if ( (frame_vec.x==0) && (frame_vec.y==0) && (frame_vec.z==0) )
break;
count++;
// If retry count is getting large, then we are trying to do something stupid.
if (count > 8) break; // in original code this was 3 for all non-player objects. still leave us some limit in case fvi goes apeshit.
vm_vec_add(&new_pos,&obj->pos,&frame_vec);
ignore_obj_list[n_ignore_objs] = -1;
fq.p0 = &obj->pos;
fq.startseg = obj->segnum;
fq.p1 = &new_pos;
fq.rad = obj->size;
fq.thisobjnum = objnum;
fq.ignore_obj_list = ignore_obj_list;
fq.flags = FQ_CHECK_OBJS;
if (obj->type == OBJ_WEAPON)
fq.flags |= FQ_TRANSPOINT;
if (obj->type == OBJ_PLAYER)
fq.flags |= FQ_GET_SEGLIST;
fate = find_vector_intersection(&fq,&hit_info);
// Matt: Mike's hack.
if (fate == HIT_OBJECT) {
object *objp = &Objects[hit_info.hit_object];
if (((objp->type == OBJ_WEAPON) && (objp->id == PROXIMITY_ID)) || objp->type == OBJ_POWERUP) // do not increase count for powerups since they *should* not change our movement
count--;
}
#ifndef NDEBUG
if (fate == HIT_BAD_P0) {
Int3();
}
#endif
if (obj->type == OBJ_PLAYER) {
int i;
if (n_phys_segs && phys_seglist[n_phys_segs-1]==hit_info.seglist[0])
n_phys_segs--;
for (i=0;(i<hit_info.n_segs) && (n_phys_segs<MAX_FVI_SEGS-1); )
phys_seglist[n_phys_segs++] = hit_info.seglist[i++];
}
ipos = hit_info.hit_pnt;
iseg = hit_info.hit_seg;
WallHitSide = hit_info.hit_side;
WallHitSeg = hit_info.hit_side_seg;
if (iseg==-1) { //some sort of horrible error
if (obj->type == OBJ_WEAPON)
obj->flags |= OF_SHOULD_BE_DEAD;
break;
}
Assert(!((fate==HIT_WALL) && ((WallHitSeg == -1) || (WallHitSeg > Highest_segment_index))));
//if(!get_seg_masks(&hit_info.hit_pnt,hit_info.hit_seg,0).centermask==0)
// Int3();
save_pos = obj->pos; //save the object's position
save_seg = obj->segnum;
// update object's position and segment number
obj->pos = ipos;
if ( iseg != obj->segnum )
obj_relink(objnum, iseg );
//if start point not in segment, move object to center of segment
if (get_seg_masks(&obj->pos,obj->segnum,0,__FILE__,__LINE__).centermask!=0) {
int n;
if ((n=find_object_seg(obj))==-1) {
//Int3();
if (obj->type==OBJ_PLAYER && (n=find_point_seg(&obj->last_pos,obj->segnum))!=-1) {
obj->pos = obj->last_pos;
obj_relink(objnum, n );
}
else {
compute_segment_center(&obj->pos,&Segments[obj->segnum]);
obj->pos.x += objnum;
}
if (obj->type == OBJ_WEAPON)
obj->flags |= OF_SHOULD_BE_DEAD;
}
return;
}
//calulate new sim time
{
//vms_vector moved_vec;
vms_vector moved_vec_n;
fix attempted_dist,actual_dist;
actual_dist = vm_vec_normalized_dir(&moved_vec_n,&obj->pos,&save_pos);
if (fate==HIT_WALL && vm_vec_dot(&moved_vec_n,&frame_vec) < 0) { //moved backwards
//don't change position or sim_time
obj->pos = save_pos;
//iseg = obj->segnum; //don't change segment
obj_relink(objnum, save_seg );
moved_time = 0;
}
else {
fix old_sim_time;
attempted_dist = vm_vec_mag(&frame_vec);
old_sim_time = sim_time;
sim_time = fixmuldiv(sim_time,attempted_dist-actual_dist,attempted_dist);
moved_time = old_sim_time - sim_time;
if (sim_time < 0 || sim_time>old_sim_time) {
sim_time = old_sim_time;
//WHY DOES THIS HAPPEN??
moved_time = 0;
}
}
}
switch( fate ) {
case HIT_WALL: {
vms_vector moved_v;
fix hit_speed=0, wall_part=0;
// Find hit speed
vm_vec_sub(&moved_v,&obj->pos,&save_pos);
wall_part = vm_vec_dot(&moved_v,&hit_info.hit_wallnorm);
if ((wall_part != 0 && moved_time>0 && (hit_speed=-fixdiv(wall_part,moved_time))>0) || obj->type == OBJ_WEAPON || obj->type == OBJ_DEBRIS)
collide_object_with_wall( obj, hit_speed, WallHitSeg, WallHitSide, &hit_info.hit_pnt );
if (obj->type == OBJ_PLAYER)
scrape_player_on_wall(obj, WallHitSeg, WallHitSide, &hit_info.hit_pnt );
Assert( WallHitSeg > -1 );
Assert( WallHitSide > -1 );
if ( !(obj->flags&OF_SHOULD_BE_DEAD) ) {
Assert(! (obj->mtype.phys_info.flags & PF_STICK && obj->mtype.phys_info.flags & PF_BOUNCE)); //can't be bounce and stick
if (obj->mtype.phys_info.flags & PF_STICK) { //stop moving
add_stuck_object(obj, WallHitSeg, WallHitSide);
vm_vec_zero(&obj->mtype.phys_info.velocity);
obj_stopped = 1;
try_again = 0;
}
else { // Slide object along wall
//We're constrained by wall, so subtract wall part from
//velocity vector
wall_part = vm_vec_dot(&hit_info.hit_wallnorm,&obj->mtype.phys_info.velocity);
// if wall_part, make sure the value is sane enough to get usable velocity computed
if (wall_part < 0 && wall_part > -f1_0) wall_part = -f1_0;
if (wall_part > 0 && wall_part < f1_0) wall_part = f1_0;
if (obj->mtype.phys_info.flags & PF_BOUNCE) //bounce off wall
wall_part *= 2; //Subtract out wall part twice to achieve bounce
vm_vec_scale_add2(&obj->mtype.phys_info.velocity,&hit_info.hit_wallnorm,-wall_part);
try_again = 1;
}
}
break;
}
case HIT_OBJECT: {
vms_vector old_vel;
// Mark the hit object so that on a retry the fvi code
// ignores this object.
Assert(hit_info.hit_object != -1);
// Calculcate the hit point between the two objects.
{ vms_vector *ppos0, *ppos1, pos_hit;
fix size0, size1;
ppos0 = &Objects[hit_info.hit_object].pos;
ppos1 = &obj->pos;
size0 = Objects[hit_info.hit_object].size;
size1 = obj->size;
Assert(size0+size1 != 0); // Error, both sizes are 0, so how did they collide, anyway?!?
//vm_vec_scale(vm_vec_sub(&pos_hit, ppos1, ppos0), fixdiv(size0, size0 + size1));
//vm_vec_add2(&pos_hit, ppos0);
vm_vec_sub(&pos_hit, ppos1, ppos0);
vm_vec_scale_add(&pos_hit,ppos0,&pos_hit,fixdiv(size0, size0 + size1));
old_vel = obj->mtype.phys_info.velocity;
collide_two_objects( obj, &Objects[hit_info.hit_object], &pos_hit);
}
// Let object continue its movement
if ( !(obj->flags&OF_SHOULD_BE_DEAD) ) {
//obj->pos = save_pos;
if (obj->mtype.phys_info.flags&PF_PERSISTENT || (old_vel.x == obj->mtype.phys_info.velocity.x && old_vel.y == obj->mtype.phys_info.velocity.y && old_vel.z == obj->mtype.phys_info.velocity.z)) {
//if (Objects[hit_info.hit_object].type == OBJ_POWERUP)
ignore_obj_list[n_ignore_objs++] = hit_info.hit_object;
try_again = 1;
}
}
break;
}
case HIT_NONE:
break;
#ifndef NDEBUG
case HIT_BAD_P0:
Int3(); // Unexpected collision type: start point not in specified segment.
break;
default:
// Unknown collision type returned from find_vector_intersection!!
Int3();
break;
#endif
}
} while ( try_again );
// Pass retry count info to AI.
if (obj->control_type == CT_AI) {
if (count > 0) {
Ai_local_info[objnum].retry_count = count-1;
Total_retries += count-1;
Total_sims++;
}
}
// As sim_time may not base on FrameTime, scale actual object position to get accurate movement
if (PhysTime/FrameTime > 0)
{
vms_vector md;
vm_vec_sub(&md, &obj->pos, &start_pos);
vm_vec_scale(&md, F1_0/((float)PhysTime/FrameTime));
vm_vec_add(&obj->pos,&start_pos, &md);
//check for and update correct object segment
if(!get_seg_masks(&obj->pos, obj->segnum, 0, __FILE__, __LINE__).centermask == 0)
{
if (!update_object_seg(obj)) {
if (!(Game_mode & GM_MULTI))
Int3();
compute_segment_center(&obj->pos,&Segments[obj->segnum]);
obj->pos.x += objnum;
}
}
}
// After collision with objects and walls, set velocity from actual movement
if (!obj_stopped
&& ((obj->type == OBJ_PLAYER) || (obj->type == OBJ_ROBOT) || (obj->type == OBJ_DEBRIS))
&& ((fate == HIT_WALL) || (fate == HIT_OBJECT) || (fate == HIT_BAD_P0))
)
{
vms_vector moved_vec;
vm_vec_sub(&moved_vec,&obj->pos,&start_pos);
vm_vec_copy_scale(&obj->mtype.phys_info.velocity,&moved_vec,fixdiv(f1_0,FrameTime));
}
fix_illegal_wall_intersection(obj, &start_pos);
//Assert(check_point_in_seg(&obj->pos,obj->segnum,0).centermask==0);
//if (obj->control_type == CT_FLYING)
if (obj->mtype.phys_info.flags & PF_LEVELLING)
do_physics_align_object( obj );
//hack to keep player from going through closed doors
if (obj->type==OBJ_PLAYER && obj->segnum!=orig_segnum && (!cheats.ghostphysics) ) {
int sidenum;
sidenum = find_connect_side(&Segments[obj->segnum],&Segments[orig_segnum]);
if (sidenum != -1) {
if (! (WALL_IS_DOORWAY(&Segments[orig_segnum],sidenum) & WID_FLY_FLAG)) {
side *s;
int vertnum,num_faces,i;
fix dist;
int vertex_list[6];
//bump object back
s = &Segments[orig_segnum].sides[sidenum];
create_abs_vertex_lists( &num_faces, vertex_list, orig_segnum, sidenum, __FILE__,__LINE__);
//let's pretend this wall is not triangulated
vertnum = vertex_list[0];
for (i=1;i<4;i++)
if (vertex_list[i] < vertnum)
vertnum = vertex_list[i];
#ifdef COMPACT_SEGS
{
vms_vector _vn;
get_side_normal(&Segments[orig_segnum], sidenum, 0, &_vn );
dist = vm_dist_to_plane(&start_pos, &_vn, &Vertices[vertnum]);
vm_vec_scale_add(&obj->pos,&start_pos,&_vn,obj->size-dist);
}
#else
dist = vm_dist_to_plane(&start_pos, &s->normals[0], &Vertices[vertnum]);
vm_vec_scale_add(&obj->pos,&start_pos,&s->normals[0],obj->size-dist);
#endif
update_object_seg(obj);
}
}
}
//--WE ALWYS WANT THIS IN, MATT AND MIKE DECISION ON 12/10/94, TWO MONTHS AFTER FINAL #ifndef NDEBUG
//if end point not in segment, move object to last pos, or segment center
if (get_seg_masks(&obj->pos,obj->segnum,0,__FILE__,__LINE__).centermask!=0) {
if (find_object_seg(obj)==-1) {
int n;
//Int3();
if (obj->type==OBJ_PLAYER && (n=find_point_seg(&obj->last_pos,obj->segnum))!=-1) {
obj->pos = obj->last_pos;
obj_relink(objnum, n );
}
else {
compute_segment_center(&obj->pos,&Segments[obj->segnum]);
obj->pos.x += objnum;
}
if (obj->type == OBJ_WEAPON)
obj->flags |= OF_SHOULD_BE_DEAD;
}
}
//--WE ALWYS WANT THIS IN, MATT AND MIKE DECISION ON 12/10/94, TWO MONTHS AFTER FINAL #endif
}
do_endlevel_frame()
{
static fix timer;
vms_vector save_last_pos;
static fix explosion_wait1=0;
static fix explosion_wait2=0;
static fix bank_rate;
static fix ext_expl_halflife;
save_last_pos = ConsoleObject->last_pos; //don't let move code change this
object_move_all();
ConsoleObject->last_pos = save_last_pos;
if (ext_expl_playing) {
external_explosion.lifeleft -= FrameTime;
do_explosion_sequence(&external_explosion);
if (external_explosion.lifeleft < ext_expl_halflife)
mine_destroyed = 1;
if (external_explosion.flags & OF_SHOULD_BE_DEAD)
ext_expl_playing = 0;
}
if (cur_fly_speed != desired_fly_speed) {
fix delta = desired_fly_speed - cur_fly_speed;
fix frame_accel = fixmul(FrameTime,FLY_ACCEL);
if (abs(delta) < frame_accel)
cur_fly_speed = desired_fly_speed;
else
if (delta > 0)
cur_fly_speed += frame_accel;
else
cur_fly_speed -= frame_accel;
}
//do big explosions
if (!outside_mine) {
if (Endlevel_sequence==EL_OUTSIDE) {
vms_vector tvec;
vm_vec_sub(&tvec,&ConsoleObject->pos,&mine_side_exit_point);
if (vm_vec_dot(&tvec,&mine_exit_orient.fvec) > 0) {
object *tobj;
outside_mine = 1;
tobj = object_create_explosion(exit_segnum,&mine_side_exit_point,i2f(50),VCLIP_BIG_PLAYER_EXPLOSION);
if (tobj) {
external_explosion = *tobj;
tobj->flags |= OF_SHOULD_BE_DEAD;
flash_scale = 0; //kill lights in mine
ext_expl_halflife = tobj->lifeleft;
ext_expl_playing = 1;
}
digi_link_sound_to_pos( SOUND_BIG_ENDLEVEL_EXPLOSION, exit_segnum, 0, &mine_side_exit_point, 0, i2f(3)/4 );
}
}
//do explosions chasing player
if ((explosion_wait1-=FrameTime) < 0) {
vms_vector tpnt;
int segnum;
object *expl;
static int sound_count;
vm_vec_scale_add(&tpnt,&ConsoleObject->pos,&ConsoleObject->orient.fvec,-ConsoleObject->size*5);
vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.rvec,(rand()-RAND_MAX/2)*15);
vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.uvec,(rand()-RAND_MAX/2)*15);
segnum = find_point_seg(&tpnt,ConsoleObject->segnum);
if (segnum != -1) {
expl = object_create_explosion(segnum,&tpnt,i2f(20),VCLIP_BIG_PLAYER_EXPLOSION);
if (rand()<10000 || ++sound_count==7) { //pseudo-random
digi_link_sound_to_pos( SOUND_TUNNEL_EXPLOSION, segnum, 0, &tpnt, 0, F1_0 );
sound_count=0;
}
}
explosion_wait1 = 0x2000 + rand()/4;
}
}
//do little explosions on walls
if (Endlevel_sequence >= EL_FLYTHROUGH && Endlevel_sequence < EL_OUTSIDE)
if ((explosion_wait2-=FrameTime) < 0) {
vms_vector tpnt;
fvi_query fq;
fvi_info hit_data;
//create little explosion on wall
vm_vec_copy_scale(&tpnt,&ConsoleObject->orient.rvec,(rand()-RAND_MAX/2)*100);
vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.uvec,(rand()-RAND_MAX/2)*100);
vm_vec_add2(&tpnt,&ConsoleObject->pos);
if (Endlevel_sequence == EL_FLYTHROUGH)
vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.fvec,rand()*200);
else
vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.fvec,rand()*60);
//find hit point on wall
fq.p0 = &ConsoleObject->pos;
fq.p1 = &tpnt;
fq.startseg = ConsoleObject->segnum;
fq.rad = 0;
fq.thisobjnum = 0;
fq.ignore_obj_list = NULL;
fq.flags = 0;
find_vector_intersection(&fq,&hit_data);
if (hit_data.hit_type==HIT_WALL && hit_data.hit_seg!=-1)
object_create_explosion(hit_data.hit_seg,&hit_data.hit_pnt,i2f(3)+rand()*6,VCLIP_SMALL_EXPLOSION);
explosion_wait2 = (0xa00 + rand()/8)/2;
}
switch (Endlevel_sequence) {
case EL_OFF: return;
case EL_FLYTHROUGH: {
do_endlevel_flythrough(0);
if (ConsoleObject->segnum == transition_segnum) {
int objnum;
Endlevel_sequence = EL_LOOKBACK;
objnum = obj_create(OBJ_CAMERA, 0,
ConsoleObject->segnum,&ConsoleObject->pos,&ConsoleObject->orient,0,
CT_NONE,MT_NONE,RT_NONE);
if (objnum == -1) { //can't get object, so abort
mprintf((1, "Can't get object for endlevel sequence. Aborting endlevel sequence.\n"));
stop_endlevel_sequence();
return;
}
Viewer = endlevel_camera = &Objects[objnum];
select_cockpit(CM_LETTERBOX);
fly_objects[1] = fly_objects[0];
fly_objects[1].obj = endlevel_camera;
fly_objects[1].speed = (5*cur_fly_speed)/4;
fly_objects[1].offset_frac = 0x4000;
vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,i2f(7));
timer=0x20000;
}
break;
}
case EL_LOOKBACK: {
do_endlevel_flythrough(0);
do_endlevel_flythrough(1);
if (timer>0) {
timer -= FrameTime;
if (timer < 0) //reduce speed
fly_objects[1].speed = fly_objects[0].speed;
}
if (endlevel_camera->segnum == exit_segnum) {
vms_angvec cam_angles,exit_seg_angles;
Endlevel_sequence = EL_OUTSIDE;
timer = i2f(2);
vm_vec_negate(&endlevel_camera->orient.fvec);
vm_vec_negate(&endlevel_camera->orient.rvec);
vm_extract_angles_matrix(&cam_angles,&endlevel_camera->orient);
vm_extract_angles_matrix(&exit_seg_angles,&mine_exit_orient);
bank_rate = (-exit_seg_angles.b - cam_angles.b)/2;
ConsoleObject->control_type = endlevel_camera->control_type = CT_NONE;
//_MARK_("Starting outside");//Commented out by KRB
#ifdef SLEW_ON
slew_obj = endlevel_camera;
#endif
}
break;
}
case EL_OUTSIDE: {
#ifndef SLEW_ON
vms_angvec cam_angles;
#endif
vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
#ifndef SLEW_ON
vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,fixmul(FrameTime,-2*cur_fly_speed));
vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.uvec,fixmul(FrameTime,-cur_fly_speed/10));
vm_extract_angles_matrix(&cam_angles,&endlevel_camera->orient);
cam_angles.b += fixmul(bank_rate,FrameTime);
vm_angles_2_matrix(&endlevel_camera->orient,&cam_angles);
#endif
timer -= FrameTime;
if (timer < 0) {
Endlevel_sequence = EL_STOPPED;
vm_extract_angles_matrix(&player_angles,&ConsoleObject->orient);
timer = i2f(3);
}
break;
}
case EL_STOPPED: {
get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
chase_angles(&player_angles,&player_dest_angles);
vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
timer -= FrameTime;
if (timer < 0) {
#ifdef SLEW_ON
slew_obj = endlevel_camera;
_do_slew_movement(endlevel_camera,1,1);
timer += FrameTime; //make time stop
break;
#else
#ifdef SHORT_SEQUENCE
stop_endlevel_sequence();
#else
Endlevel_sequence = EL_PANNING;
vm_extract_angles_matrix(&camera_cur_angles,&endlevel_camera->orient);
timer = i2f(3);
if (Game_mode & GM_MULTI) { // try to skip part of the seq if multiplayer
stop_endlevel_sequence();
return;
}
//mprintf((0,"Switching to pan...\n"));
#endif //SHORT_SEQUENCE
#endif //SLEW_ON
}
break;
}
#ifndef SHORT_SEQUENCE
case EL_PANNING: {
#ifndef SLEW_ON
int mask;
#endif
get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
chase_angles(&player_angles,&player_dest_angles);
vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
#ifdef SLEW_ON
_do_slew_movement(endlevel_camera,1,1);
#else
get_angs_to_object(&camera_desired_angles,&ConsoleObject->pos,&endlevel_camera->pos);
mask = chase_angles(&camera_cur_angles,&camera_desired_angles);
vm_angles_2_matrix(&endlevel_camera->orient,&camera_cur_angles);
if ((mask&5) == 5) {
vms_vector tvec;
Endlevel_sequence = EL_CHASING;
//_MARK_("Done outside");//Commented out -KRB
vm_vec_normalized_dir_quick(&tvec,&station_pos,&ConsoleObject->pos);
vm_vector_2_matrix(&ConsoleObject->orient,&tvec,&surface_orient.uvec,NULL);
desired_fly_speed *= 2;
//mprintf((0,"Switching to chase...\n"));
}
#endif
break;
}
case EL_CHASING: {
fix d,speed_scale;
#ifdef SLEW_ON
_do_slew_movement(endlevel_camera,1,1);
#endif
get_angs_to_object(&camera_desired_angles,&ConsoleObject->pos,&endlevel_camera->pos);
chase_angles(&camera_cur_angles,&camera_desired_angles);
#ifndef SLEW_ON
vm_angles_2_matrix(&endlevel_camera->orient,&camera_cur_angles);
#endif
d = vm_vec_dist_quick(&ConsoleObject->pos,&endlevel_camera->pos);
speed_scale = fixdiv(d,i2f(0x20));
if (d<f1_0) d=f1_0;
get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
chase_angles(&player_angles,&player_dest_angles);
vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
#ifndef SLEW_ON
vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,fixmul(FrameTime,fixmul(speed_scale,cur_fly_speed)));
if (vm_vec_dist(&ConsoleObject->pos,&station_pos) < i2f(10))
stop_endlevel_sequence();
#endif
break;
}
#endif //ifdef SHORT_SEQUENCE
}
}
void read_flying_controls( object * obj )
{
//if ((Players[Player_num].spec_flags & PLAYER_FLAGS_SPECTATING) && (!in_free)) return; // jinx 02-01-13 spec
fix forward_thrust_time;
Assert(FrameTime > 0); //Get MATT if hit this!
// this section commented and moved to the bottom by WraithX
// if (Player_is_dead) {
// vm_vec_zero(&obj->mtype.phys_info.rotthrust);
// vm_vec_zero(&obj->mtype.phys_info.thrust);
// return;
// }
// end of section to be moved.
if (((obj->type!=OBJ_PLAYER) || (obj->id!=Player_num)) && (!(Players[Player_num].spec_flags & PLAYER_FLAGS_SPECTATING))) return; //references to player_ship require that this obj be the player // jinx 02-01-13 spec
if (Guided_missile[Player_num] && Guided_missile[Player_num]->signature==Guided_missile_sig[Player_num]) {
vms_angvec rotangs;
vms_matrix rotmat,tempm;
fix speed;
//this is a horrible hack. guided missile stuff should not be
//handled in the middle of a routine that is dealing with the player
vm_vec_zero(&obj->mtype.phys_info.rotthrust);
rotangs.p = Controls.pitch_time / 2 + Seismic_tremor_magnitude/64;
rotangs.b = Controls.bank_time / 2 + Seismic_tremor_magnitude/16;
rotangs.h = Controls.heading_time / 2 + Seismic_tremor_magnitude/64;
vm_angles_2_matrix(&rotmat,&rotangs);
vm_matrix_x_matrix(&tempm,&Guided_missile[Player_num]->orient,&rotmat);
Guided_missile[Player_num]->orient = tempm;
speed = Weapon_info[Guided_missile[Player_num]->id].speed[Difficulty_level];
vm_vec_copy_scale(&Guided_missile[Player_num]->mtype.phys_info.velocity,&Guided_missile[Player_num]->orient.fvec,speed);
#ifdef NETWORK
if (Game_mode & GM_MULTI)
multi_send_guided_info (Guided_missile[Player_num],0);
#endif
}
else {
obj->mtype.phys_info.rotthrust.x = Controls.pitch_time;
obj->mtype.phys_info.rotthrust.y = Controls.heading_time;
obj->mtype.phys_info.rotthrust.z = Controls.bank_time;
}
forward_thrust_time = Controls.forward_thrust_time;
if ((Players[Player_num].flags & PLAYER_FLAGS_AFTERBURNER) || (Players[Player_num].spec_flags & PLAYER_FLAGS_SPECTATING)) // jinx 02-01-13 spec
{
if (Controls.afterburner_state) { //player has key down
//if (forward_thrust_time >= 0) { //..and isn't moving backward
{
fix afterburner_scale;
int old_count,new_count;
//add in value from 0..1
afterburner_scale = f1_0 + min(f1_0/2,Afterburner_charge) * 2;
forward_thrust_time = fixmul(FrameTime,afterburner_scale); //based on full thrust
if (Players[Player_num].spec_flags & PLAYER_FLAGS_SPECTATING) forward_thrust_time *= 1.3; // jinx 01-25-13 spec
old_count = (Afterburner_charge / (DROP_DELTA_TIME/AFTERBURNER_USE_SECS));
if (!(Players[Player_num].spec_flags & PLAYER_FLAGS_SPECTATING)) // jinx 01-25-13 spec
Afterburner_charge -= FrameTime/AFTERBURNER_USE_SECS;
if (Afterburner_charge < 0)
Afterburner_charge = 0;
new_count = (Afterburner_charge / (DROP_DELTA_TIME/AFTERBURNER_USE_SECS));
if (old_count != new_count)
Drop_afterburner_blob_flag = 1; //drop blob (after physics called)
}
}
else {
fix cur_energy,charge_up;
//charge up to full
charge_up = min(FrameTime/8,f1_0 - Afterburner_charge); //recharge over 8 seconds
cur_energy = max(Players[Player_num].energy-i2f(10),0); //don't drop below 10
//maybe limit charge up by energy
charge_up = min(charge_up,cur_energy/10);
Afterburner_charge += charge_up;
if (!(Players[Player_num].spec_flags & PLAYER_FLAGS_SPECTATING)) // jinx 01-25-13 spec
Players[Player_num].energy -= charge_up * 100 / 10; //full charge uses 10% of energy
}
}
// Set object's thrust vector for forward/backward
vm_vec_copy_scale(&obj->mtype.phys_info.thrust,&obj->orient.fvec, forward_thrust_time );
// slide left/right
vm_vec_scale_add2(&obj->mtype.phys_info.thrust,&obj->orient.rvec, Controls.sideways_thrust_time );
// slide up/down
vm_vec_scale_add2(&obj->mtype.phys_info.thrust,&obj->orient.uvec, Controls.vertical_thrust_time );
if (obj->mtype.phys_info.flags & PF_WIGGLE)
{
fix swiggle;
fix_fastsincos(((fix)GameTime64), &swiggle, NULL);
if (FrameTime < F1_0) // Only scale wiggle if getting at least 1 FPS, to avoid causing the opposite problem.
swiggle = fixmul(swiggle*20, FrameTime); //make wiggle fps-independent (based on pre-scaled amount of wiggle at 20 FPS)
vm_vec_scale_add2(&obj->mtype.phys_info.velocity,&obj->orient.uvec,fixmul(swiggle,Player_ship->wiggle));
}
// As of now, obj->mtype.phys_info.thrust & obj->mtype.phys_info.rotthrust are
// in units of time... In other words, if thrust==FrameTime, that
// means that the user was holding down the Max_thrust key for the
// whole frame. So we just scale them up by the max, and divide by
// FrameTime to make them independant of framerate
// Prevent divide overflows on high frame rates.
// In a signed divide, you get an overflow if num >= div<<15
{
fix ft = FrameTime;
// Note, you must check for ft < F1_0/2, else you can get an overflow on the << 15.
if ((ft < F1_0/2) && (ft << 15 <= Player_ship->max_thrust)) {
ft = (Player_ship->max_thrust >> 15) + 1;
}
vm_vec_scale( &obj->mtype.phys_info.thrust, fixdiv(Player_ship->max_thrust,ft) );
if ((ft < F1_0/2) && (ft << 15 <= Player_ship->max_rotthrust)) {
ft = (Player_ship->max_thrust >> 15) + 1;
}
// -----------------------------------------------------------------------------------------------------------
// add rotational velocity & acceleration
void do_physics_sim_rot(object *obj)
{
vms_angvec tangles;
vms_matrix rotmat,new_orient;
//fix rotdrag_scale;
physics_info *pi;
Assert(FrameTime > 0); //Get MATT if hit this!
pi = &obj->mtype.phys_info;
if (!(pi->rotvel.x || pi->rotvel.y || pi->rotvel.z || pi->rotthrust.x || pi->rotthrust.y || pi->rotthrust.z))
return;
if (obj->mtype.phys_info.drag) {
int count;
vms_vector accel;
fix drag,r,k;
count = FrameTime / FT;
r = FrameTime % FT;
k = fixdiv(r,FT);
drag = (obj->mtype.phys_info.drag*5)/2;
const char ORIGINAL = 0;
const char LINEAR_INTERPOLATION = 1;
const char GEOMETRIC_DRAG = 2;
const char STRATEGY = ORIGINAL;
if (obj->mtype.phys_info.flags & PF_USES_THRUST) {
vm_vec_copy_scale(&accel,&obj->mtype.phys_info.rotthrust,fixdiv(f1_0,obj->mtype.phys_info.mass));
}
if(STRATEGY == ORIGINAL) {
while (count--) {
if (obj->mtype.phys_info.flags & PF_USES_THRUST) {
vm_vec_add2(&obj->mtype.phys_info.rotvel,&accel);
}
vm_vec_scale(&obj->mtype.phys_info.rotvel,f1_0-drag);
}
//do linear scale on remaining bit of time
if (obj->mtype.phys_info.flags & PF_USES_THRUST) {
vm_vec_scale_add2(&obj->mtype.phys_info.rotvel,&accel,k);
}
vm_vec_scale(&obj->mtype.phys_info.rotvel,f1_0-fixmul(k,drag));
} else if (STRATEGY == LINEAR_INTERPOLATION) {
vms_vector target_rotvel;
vm_vec_copy_scale(&target_rotvel, &obj->mtype.phys_info.rotvel, F1_0);
// Target 21.3 FPS -- three iterations
for(int i = 0; i < 3; i++) {
if (obj->mtype.phys_info.flags & PF_USES_THRUST) {
vm_vec_add2(&target_rotvel, &accel);
}
vm_vec_scale(&target_rotvel,f1_0-drag);
}
fix target_frametime = F1_0 / 64 * 3;
fix interpolation_fraction = fixdiv(FrameTime, target_frametime);
vm_vec_sub2(&target_rotvel, &obj->mtype.phys_info.rotvel);
vm_vec_scale(&target_rotvel, interpolation_fraction);
vm_vec_add2(&obj->mtype.phys_info.rotvel, &target_rotvel);
} else if(STRATEGY == GEOMETRIC_DRAG) {
while (count--) {
if (obj->mtype.phys_info.flags & PF_USES_THRUST) {
vm_vec_add2(&obj->mtype.phys_info.rotvel,&accel);
}
vm_vec_scale(&obj->mtype.phys_info.rotvel,f1_0-drag);
}
//do linear scale on remaining bit of time
if (obj->mtype.phys_info.flags & PF_USES_THRUST) {
vm_vec_scale_add2(&obj->mtype.phys_info.rotvel,&accel,k);
}
double target_frametime = 3.0/64.0;
const double fix_offset = 65536.0;
double interpolation_fraction = ((double)(r) / fix_offset) / target_frametime ;
double ddrag = (double)(drag) / fix_offset;
double kdrag = pow((1.0 - ddrag), interpolation_fraction*3);
fix fractional_drag = (fix)(kdrag * fix_offset);
vm_vec_scale(&obj->mtype.phys_info.rotvel,fractional_drag);
//vm_vec_scale(&obj->mtype.phys_info.rotvel,f1_0-fixmul(k,drag));
}
/*
fix k_drag = f1_0-fixmul(k,drag);
if(FrameTime < F1_0/30) {
// Pegged to 30 FPS for now
double fix_offset = (double) F1_0;
double target_framerate = 20.0;
double ddrag = ((double) drag)/fix_offset;
//double target_drag = (1.0-ddrag)*(1.0-ddrag)*(1.0-ddrag*2.0/15.0); // Drag value multiplied by at 30 hz
double target_drag = (1.0-ddrag)*(1.0-ddrag)*(1.0-ddrag)*(1.0-ddrag*2.0/15.0); // Drag value at 20 hz
double frame_pow = 20.0 * ((double)(FrameTime)/fix_offset);
double frame_drag = pow(target_drag, frame_pow);
k_drag = (fix) (frame_drag*fix_offset);
}
if (obj->mtype.phys_info.flags & PF_USES_THRUST) {
vm_vec_copy_scale(&accel,&obj->mtype.phys_info.rotthrust,fixdiv(f1_0,obj->mtype.phys_info.mass));
// CED -- fix this for frame independence!
while (count--) {
vm_vec_add2(&obj->mtype.phys_info.rotvel,&accel);
vm_vec_scale(&obj->mtype.phys_info.rotvel,f1_0-drag);
}
//do linear scale on remaining bit of time
vm_vec_scale_add2(&obj->mtype.phys_info.rotvel,&accel,k);
//vm_vec_scale(&obj->mtype.phys_info.rotvel,f1_0-fixmul(k,drag));
vm_vec_scale(&obj->mtype.phys_info.rotvel,k_drag);
}
else
{
fix total_drag=f1_0;
while (count--)
total_drag = fixmul(total_drag,f1_0-drag);
//do linear scale on remaining bit of time
//total_drag = fixmul(total_drag,f1_0-fixmul(k,drag));
total_drag = fixmul(total_drag,k_drag);
vm_vec_scale(&obj->mtype.phys_info.rotvel,total_drag);
}
*/
}
//now rotate object
//unrotate object for bank caused by turn
if (obj->mtype.phys_info.turnroll) {
vms_matrix new_pm;
tangles.p = tangles.h = 0;
tangles.b = -obj->mtype.phys_info.turnroll;
vm_angles_2_matrix(&rotmat,&tangles);
vm_matrix_x_matrix(&new_pm,&obj->orient,&rotmat);
obj->orient = new_pm;
}
tangles.p = fixmul(obj->mtype.phys_info.rotvel.x,FrameTime);
tangles.h = fixmul(obj->mtype.phys_info.rotvel.y,FrameTime);
tangles.b = fixmul(obj->mtype.phys_info.rotvel.z,FrameTime);
vm_angles_2_matrix(&rotmat,&tangles);
vm_matrix_x_matrix(&new_orient,&obj->orient,&rotmat);
obj->orient = new_orient;
if (obj->mtype.phys_info.flags & PF_TURNROLL)
set_object_turnroll(obj);
//re-rotate object for bank caused by turn
if (obj->mtype.phys_info.turnroll) {
vms_matrix new_pm;
tangles.p = tangles.h = 0;
tangles.b = obj->mtype.phys_info.turnroll;
vm_angles_2_matrix(&rotmat,&tangles);
vm_matrix_x_matrix(&new_pm,&obj->orient,&rotmat);
obj->orient = new_pm;
}
check_and_fix_matrix(&obj->orient);
}
void init_points(polymodel *pm,vms_vector *box_size,int submodel_num,morph_data *md)
{
ushort nverts;
vms_vector *vp;
ushort *data,type;
int i;
//printf("initing %d ",submodel_num);
data = (ushort *) &pm->model_data[pm->submodel_ptrs[submodel_num]];
type = *data++;
Assert(type == 7 || type == 1);
nverts = *data++;
md->n_morphing_points[submodel_num] = 0;
if (type==7) {
i = *data++; //get start point number
data++; //skip pad
}
else
i = 0; //start at zero
Assert(i+nverts < MAX_VECS);
md->submodel_startpoints[submodel_num] = i;
vp = (vms_vector *) data;
while (nverts--) {
fix k,dist;
if (box_size) {
fix t;
k = 0x7fffffff;
if (vp->x && f2i(box_size->x)<abs(vp->x)/2 && (t = fixdiv(box_size->x,abs(vp->x))) < k) k=t;
if (vp->y && f2i(box_size->y)<abs(vp->y)/2 && (t = fixdiv(box_size->y,abs(vp->y))) < k) k=t;
if (vp->z && f2i(box_size->z)<abs(vp->z)/2 && (t = fixdiv(box_size->z,abs(vp->z))) < k) k=t;
if (k==0x7fffffff) k=0;
}
else
k=0;
vm_vec_copy_scale(&md->morph_vecs[i],vp,k);
dist = vm_vec_normalized_dir_quick(&md->morph_deltas[i],vp,&md->morph_vecs[i]);
md->morph_times[i] = fixdiv(dist,morph_rate);
if (md->morph_times[i] != 0)
md->n_morphing_points[submodel_num]++;
vm_vec_scale(&md->morph_deltas[i],morph_rate);
vp++; i++;
}
//printf("npoints = %d\n",n_morphing_points[submodel_num]);
}
