void HudGaugeRadarOrb::drawContact(vec3d *pnt, int rad)
{
vertex verts[2];
vec3d p;
p=*pnt;
vm_vec_normalize(&p);
g3_rotate_vertex(&verts[0], &p);
g3_project_vertex(&verts[0]);
g3_rotate_vertex(&verts[1], pnt);
g3_project_vertex(&verts[1]);
float size = fl_sqrt(vm_vec_dist(&Orb_eye_position, pnt) * 8.0f);
if (size < i2fl(rad)) size = i2fl(rad);
if (rad == Radar_blip_radius_target)
{
g3_draw_sphere(&verts[1],size/100.0f);
}
else
{
g3_draw_sphere(&verts[1],size/300.0f);
}
g3_draw_line(&verts[0],&verts[1]);
}
void HudGaugeRadarOrb::drawOutlines()
{
int i;
vertex center;
// vertex extents[6];
vertex proj_orb_lines_xy[NUM_ORB_RING_SLICES];
vertex proj_orb_lines_xz[NUM_ORB_RING_SLICES];
vertex proj_orb_lines_yz[NUM_ORB_RING_SLICES];
g3_start_instance_matrix(&vmd_zero_vector, &view_perturb, false);
g3_start_instance_matrix(&vmd_zero_vector, &Player_obj->orient, false);
g3_rotate_vertex(¢er, &vmd_zero_vector);
g3_rotate_vertex(&proj_orb_lines_xy[0], &orb_ring_xy[0]);
g3_rotate_vertex(&proj_orb_lines_yz[0], &orb_ring_yz[0]);
g3_rotate_vertex(&proj_orb_lines_xz[0], &orb_ring_xz[0]);
g3_project_vertex(¢er);
gr_set_color(255,255,255);
g3_draw_sphere(¢er, .05f);
g3_project_vertex(&proj_orb_lines_xy[0]);
g3_project_vertex(&proj_orb_lines_yz[0]);
g3_project_vertex(&proj_orb_lines_xz[0]);
for (i=1; i < NUM_ORB_RING_SLICES; i++)
{
g3_rotate_vertex(&proj_orb_lines_xy[i], &orb_ring_xy[i]);
g3_rotate_vertex(&proj_orb_lines_yz[i], &orb_ring_yz[i]);
g3_rotate_vertex(&proj_orb_lines_xz[i], &orb_ring_xz[i]);
g3_project_vertex(&proj_orb_lines_xy[i]);
g3_project_vertex(&proj_orb_lines_yz[i]);
g3_project_vertex(&proj_orb_lines_xz[i]);
gr_set_color(192,96,32);
g3_draw_sphere(&proj_orb_lines_xy[i-1], .01f);
g3_draw_sphere(&proj_orb_lines_xz[i-1], .01f);
g3_draw_line(&proj_orb_lines_xy[i-1],&proj_orb_lines_xy[i]);
g3_draw_line(&proj_orb_lines_xz[i-1],&proj_orb_lines_xz[i]);
gr_set_color(112,16,192);
g3_draw_sphere(&proj_orb_lines_yz[i-1], .01f);
g3_draw_line(&proj_orb_lines_yz[i-1],&proj_orb_lines_yz[i]);
}
g3_done_instance(false);
}
// Decide which point lock should be homing on
void hud_lock_determine_lock_point(vector *lock_world_pos_out)
{
vector lock_world_pos;
vertex lock_point;
object *target_objp;
Assert(Player_ai->target_objnum >= 0);
target_objp = &Objects[Player_ai->target_objnum];
Player->current_target_sx = -1;
Player->current_target_sx = -1;
// If subsystem is targeted, we must try to lock on that
if ( Player_ai->targeted_subsys ) {
hud_lock_update_lock_pos(target_objp, &lock_world_pos);
Player->locking_on_center=0;
Player->locking_subsys=NULL;
Player->locking_subsys_parent=-1;
} else {
// See if we already have a successful locked point
if ( hud_lock_has_homing_point() ) {
hud_lock_update_lock_pos(target_objp, &lock_world_pos);
} else {
hud_lock_get_new_lock_pos(target_objp, &lock_world_pos);
}
}
*lock_world_pos_out=lock_world_pos;
g3_rotate_vertex(&lock_point,&lock_world_pos);
g3_project_vertex(&lock_point);
if (!(lock_point.flags & PF_OVERFLOW)) { // make sure point projected
Player->current_target_sx = (int)lock_point.sx;
Player->current_target_sy = (int)lock_point.sy;
}
}
// Draw a laser shaped 3d looking thing using vertex coloring (useful for things like colored laser glows)
// If max_len is > 1.0, then this caps the length to be no longer than max_len pixels
float g3_draw_laser_rgb(vec3d* headp, float head_width, vec3d* tailp, float tail_width, int r, int g, int b,
uint tmap_flags, float max_len)
{
if (!Lasers)
{
return 0.0f;
}
if ((!Cmdline_nohtl) && tmap_flags & TMAP_HTL_3D_UNLIT
)
{
// &&(gr_screen.mode==GR_OPENGL)) {
return
g3_draw_laser_htl(headp, head_width, tailp, tail_width, r, g, b, tmap_flags | TMAP_HTL_3D_UNLIT);
}
float headx, heady, headr, tailx, taily, tailr;
vertex pt1, pt2;
float depth;
int head_on = 0;
Assert(G3_count == 1);
g3_rotate_vertex(&pt1, headp);
g3_project_vertex(&pt1);
if (pt1.flags & PF_OVERFLOW)
return 0.0f;
g3_rotate_vertex(&pt2, tailp);
g3_project_vertex(&pt2);
if (pt2.flags & PF_OVERFLOW)
return 0.0f;
if ((pt1.codes & pt2.codes) != 0)
{
// Both off the same side
return 0.0f;
}
headx = pt1.sx;
heady = pt1.sy;
headr = (head_width * Matrix_scale.xyz.x * Canv_w2 * pt1.sw);
tailx = pt2.sx;
taily = pt2.sy;
tailr = (tail_width * Matrix_scale.xyz.x * Canv_w2 * pt2.sw);
float len_2d = fl_sqrt((tailx - headx) * (tailx - headx) + (taily - heady) * (taily - heady));
// Cap the length if needed.
if ((max_len > 1.0f) && (len_2d > max_len))
{
float ratio = max_len / len_2d;
tailx = headx + (tailx - headx) * ratio;
taily = heady + (taily - heady) * ratio;
tailr = headr + (tailr - headr) * ratio;
len_2d = fl_sqrt((tailx - headx) * (tailx - headx) + (taily - heady) * (taily - heady));
}
depth = (pt1.z + pt2.z) * 0.5f;
float max_r = headr;
float a;
if (tailr > max_r)
max_r = tailr;
if (max_r < 1.0f)
max_r = 1.0f;
float mx, my, w, h1, h2;
if (len_2d < max_r)
{
h1 = headr + (max_r - len_2d);
if (h1 > max_r)
h1 = max_r;
h2 = tailr + (max_r - len_2d);
if (h2 > max_r)
h2 = max_r;
len_2d = max_r;
if (fl_abs(tailx - headx) > 0.01f)
{
a = (float)atan2(taily - heady, tailx - headx);
}
else
{
a = 0.0f;
}
w = len_2d;
head_on = 1;
}
else
{
a = atan2_safe(taily - heady, tailx - headx);
w = len_2d;
h1 = headr;
h2 = tailr;
head_on = 0;
}
mx = (tailx + headx) / 2.0f;
my = (taily + heady) / 2.0f;
// gr_set_color(255,0,0);
// g3_draw_line( &pt1, &pt2 );
// gr_set_color( 255, 0, 0 );
// gr_pixel( fl2i(mx),fl2i(my) );
// Draw box with width 'w' and height 'h' at angle 'a' from horizontal
// centered around mx, my
if (h1 < 1.0f)
h1 = 1.0f;
if (h2 < 1.0f)
h2 = 1.0f;
float sa, ca;
sa = (float)sin(a);
ca = (float)cos(a);
vertex v[4];
vertex* vertlist[4] =
{
&v[3],
&v[2],
&v[1],
&v[0]
};
memset(v, 0, sizeof(vertex) * 4);
float sw;
if (depth < 0.0f)
depth = 0.0f;
sw = 1.0f / depth;
v[0].sx = (-w / 2.0f) * ca + (-h1 / 2.0f) * sa + mx;
v[0].sy = (-w / 2.0f) * sa - (-h1 / 2.0f) * ca + my;
v[0].z = pt1.z;
v[0].sw = pt1.sw;
v[0].u = 0.0f;
v[0].v = 0.0f;
v[0].r = (ubyte)r;
v[0].g = (ubyte)g;
v[0].b = (ubyte)b;
v[0].a = 255;
v[1].sx = (w / 2.0f) * ca + (-h2 / 2.0f) * sa + mx;
v[1].sy = (w / 2.0f) * sa - (-h2 / 2.0f) * ca + my;
v[1].z = pt2.z;
v[1].sw = pt2.sw;
v[1].u = 1.0f;
v[1].v = 0.0f;
v[1].r = (ubyte)r;
v[1].g = (ubyte)g;
v[1].b = (ubyte)b;
v[1].a = 255;
v[2].sx = (w / 2.0f) * ca + (h2 / 2.0f) * sa + mx;
v[2].sy = (w / 2.0f) * sa - (h2 / 2.0f) * ca + my;
v[2].z = pt2.z;
v[2].sw = pt2.sw;
v[2].u = 1.0f;
v[2].v = 1.0f;
v[2].r = (ubyte)r;
v[2].g = (ubyte)g;
v[2].b = (ubyte)b;
v[2].a = 255;
v[3].sx = (-w / 2.0f) * ca + (h1 / 2.0f) * sa + mx;
v[3].sy = (-w / 2.0f) * sa - (h1 / 2.0f) * ca + my;
v[3].z = pt1.z;
v[3].sw = pt1.sw;
v[3].u = 0.0f;
v[3].v = 1.0f;
v[3].r = (ubyte)r;
v[3].g = (ubyte)g;
v[3].b = (ubyte)b;
v[3].a = 255;
gr_tmapper(4, vertlist, tmap_flags | TMAP_FLAG_RGB | TMAP_FLAG_GOURAUD | TMAP_FLAG_CORRECT);
return depth;
}
// This assumes you have already set a color with gr_set_color or gr_set_color_fast
// and a bitmap with gr_set_bitmap. If it is very far away, it draws the laser
// as flat-shaded using current color, else textured using current texture.
// If max_len is > 1.0, then this caps the length to be no longer than max_len pixels.
float g3_draw_laser(vec3d *headp, float head_width, vec3d *tailp, float tail_width, uint tmap_flags, float max_len )
{
if (!Lasers) {
return 0.0f;
}
if ( !Cmdline_nohtl && (tmap_flags & TMAP_HTL_3D_UNLIT) ) {
return g3_draw_laser_htl(headp, head_width, tailp, tail_width, 255,255,255, tmap_flags | TMAP_HTL_3D_UNLIT);
}
float headx, heady, headr, tailx, taily, tailr;
vertex pt1, pt2;
float depth;
Assert( G3_count == 1 );
g3_rotate_vertex(&pt1,headp);
g3_project_vertex(&pt1);
if (pt1.flags & PF_OVERFLOW)
return 0.0f;
g3_rotate_vertex(&pt2,tailp);
g3_project_vertex(&pt2);
if (pt2.flags & PF_OVERFLOW)
return 0.0f;
if ( (pt1.codes & pt2.codes) != 0 ) {
// Both off the same side
return 0.0f;
}
headx = pt1.screen.xyw.x;
heady = pt1.screen.xyw.y;
headr = (head_width*Matrix_scale.xyz.x*Canv_w2*pt1.screen.xyw.w);
tailx = pt2.screen.xyw.x;
taily = pt2.screen.xyw.y;
tailr = (tail_width*Matrix_scale.xyz.x*Canv_w2*pt2.screen.xyw.w);
float len_2d = fl_sqrt( (tailx-headx)*(tailx-headx) + (taily-heady)*(taily-heady) );
// Cap the length if needed.
if ( (max_len > 1.0f) && (len_2d > max_len) ) {
float ratio = max_len / len_2d;
tailx = headx + ( tailx - headx ) * ratio;
taily = heady + ( taily - heady ) * ratio;
tailr = headr + ( tailr - headr ) * ratio;
len_2d = fl_sqrt( (tailx-headx)*(tailx-headx) + (taily-heady)*(taily-heady) );
}
depth = (pt1.world.xyz.z+pt2.world.xyz.z)*0.5f;
float max_r = headr;
float a;
if ( tailr > max_r )
max_r = tailr;
if ( max_r < 1.0f )
max_r = 1.0f;
float mx, my, w, h1,h2;
if ( len_2d < max_r ) {
h1 = headr + (max_r-len_2d);
if ( h1 > max_r ) h1 = max_r;
h2 = tailr + (max_r-len_2d);
if ( h2 > max_r ) h2 = max_r;
len_2d = max_r;
if ( fl_abs(tailx - headx) > 0.01f ) {
a = (float)atan2( taily-heady, tailx-headx );
} else {
a = 0.0f;
}
w = len_2d;
} else {
a = atan2_safe( taily-heady, tailx-headx );
w = len_2d;
h1 = headr;
h2 = tailr;
}
mx = (tailx+headx)/2.0f;
my = (taily+heady)/2.0f;
// Draw box with width 'w' and height 'h' at angle 'a' from horizontal
// centered around mx, my
if ( h1 < 1.0f ) h1 = 1.0f;
if ( h2 < 1.0f ) h2 = 1.0f;
float sa, ca;
sa = (float)sin(a);
ca = (float)cos(a);
vertex v[4];
vertex *vertlist[4] = { &v[3], &v[2], &v[1], &v[0] };
memset(v,0,sizeof(vertex)*4);
if ( depth < 0.0f ) depth = 0.0f;
v[0].screen.xyw.x = (-w/2.0f)*ca + (-h1/2.0f)*sa + mx;
v[0].screen.xyw.y = (-w/2.0f)*sa - (-h1/2.0f)*ca + my;
v[0].world.xyz.z = pt1.world.xyz.z;
v[0].screen.xyw.w = pt1.screen.xyw.w;
v[0].texture_position.u = 0.0f;
v[0].texture_position.v = 0.0f;
v[0].b = 191;
v[1].screen.xyw.x = (w/2.0f)*ca + (-h2/2.0f)*sa + mx;
v[1].screen.xyw.y = (w/2.0f)*sa - (-h2/2.0f)*ca + my;
v[1].world.xyz.z = pt2.world.xyz.z;
v[1].screen.xyw.w = pt2.screen.xyw.w;
v[1].texture_position.u = 1.0f;
v[1].texture_position.v = 0.0f;
v[1].b = 191;
v[2].screen.xyw.x = (w/2.0f)*ca + (h2/2.0f)*sa + mx;
v[2].screen.xyw.y = (w/2.0f)*sa - (h2/2.0f)*ca + my;
v[2].world.xyz.z = pt2.world.xyz.z;
v[2].screen.xyw.w = pt2.screen.xyw.w;
v[2].texture_position.u = 1.0f;
v[2].texture_position.v = 1.0f;
v[2].b = 191;
v[3].screen.xyw.x = (-w/2.0f)*ca + (h1/2.0f)*sa + mx;
v[3].screen.xyw.y = (-w/2.0f)*sa - (h1/2.0f)*ca + my;
v[3].world.xyz.z = pt1.world.xyz.z;
v[3].screen.xyw.w = pt1.screen.xyw.w;
v[3].texture_position.u = 0.0f;
v[3].texture_position.v = 1.0f;
v[3].b = 191;
gr_tmapper(4, vertlist, tmap_flags | TMAP_FLAG_CORRECT);
return depth;
}
// hud_show_lock_indicator() will display the lock indicator for homing missiles.
// lock_point_pos should be the world coordinates of the target being locked. Assuming all the
// necessary locking calculations are done for this frame, this function will compute
// where the indicator should be relative to the player's viewpoint and will render accordingly.
void HudGaugeLock::render(float frametime)
{
int target_objnum, sx, sy;
object *targetp;
vertex lock_point;
bool locked = Player_ai->current_target_is_locked ? true : false;
bool reset_timers = false;
if ( locked != Last_lock_status ) {
// check if player lock status has changed since the last frame.
reset_timers = true;
Last_lock_status = locked;
}
if (Player_ai->target_objnum == -1) {
return;
}
if (Player->target_is_dying) {
return;
}
if (!Players[Player_num].lock_indicator_visible){
return;
}
target_objnum = Player_ai->target_objnum;
Assert(target_objnum != -1);
targetp = &Objects[target_objnum];
// check to see if there are any missile to fire.. we don't want to show the
// lock indicator if there are missiles to fire.
if ( !ship_secondary_bank_has_ammo(Player_obj->instance) ) {
return;
}
bool in_frame = g3_in_frame() > 0;
if(!in_frame)
g3_start_frame(0);
gr_set_screen_scale(base_w, base_h);
// Get the target's current position on the screen. If he's not on there,
// we're not going to draw the lock indicator even if he's in front
// of our ship, so bail out.
g3_rotate_vertex(&lock_point, &lock_world_pos);
g3_project_vertex(&lock_point);
if (lock_point.codes & PF_OVERFLOW) {
gr_reset_screen_scale();
if(!in_frame)
g3_end_frame();
return;
}
hud_set_iff_color(targetp);
// nprintf(("Alan","lockx: %d, locky: %d TargetX: %d, TargetY: %d\n", Players[Player_num].lock_indicator_x, Players[Player_num].lock_indicator_y, Player->current_target_sx, Player->current_target_sy));
// We have the coordinates of the lock indicator relative to the target in our "virtual frame"
// so, we calculate where it should be drawn based on the player's viewpoint.
if (Player_ai->current_target_is_locked) {
sx = fl2i(lock_point.screen.xyw.x);
sy = fl2i(lock_point.screen.xyw.y);
gr_unsize_screen_pos(&sx, &sy);
// show the rotating triangles if target is locked
renderLockTriangles(sx, sy, frametime);
if ( reset_timers ) {
Lock_gauge.time_elapsed = 0.0f;
}
} else {
const float scaling_factor = (gr_screen.clip_center_x < gr_screen.clip_center_y) ? (gr_screen.clip_center_x / VIRTUAL_FRAME_HALF_WIDTH) : (gr_screen.clip_center_y / VIRTUAL_FRAME_HALF_HEIGHT);
sx = fl2i(lock_point.screen.xyw.x) - fl2i(i2fl(Player->current_target_sx - Players[Player_num].lock_indicator_x) * scaling_factor);
sy = fl2i(lock_point.screen.xyw.y) - fl2i(i2fl(Player->current_target_sy - Players[Player_num].lock_indicator_y) * scaling_factor);
gr_unsize_screen_pos(&sx, &sy);
if ( reset_timers ) {
Lock_gauge_draw_stamp = -1;
Lock_gauge_draw = 0;
Lock_anim.time_elapsed = 0.0f;
}
}
// show locked indicator
Lock_gauge.sx = sx - Lock_gauge_half_w;
Lock_gauge.sy = sy - Lock_gauge_half_h;
if (Player_ai->current_target_is_locked) {
hud_anim_render(&Lock_gauge, 0.0f, 1);
} else {
hud_anim_render(&Lock_gauge, frametime, 1);
}
gr_reset_screen_scale();
if(!in_frame)
g3_end_frame();
}
// hud_show_lock_indicator() will display the lock indicator for homing missiles.
// lock_point_pos should be the world coordinates of the target being locked. Assuming all the
// necessary locking calculations are done for this frame, this function will compute
// where the indicator should be relative to the player's viewpoint and will render accordingly.
void hud_show_lock_indicator(float frametime, vec3d* lock_point_pos)
{
int target_objnum, sx, sy;
object* targetp;
vertex lock_point;
if (!Players[Player_num].lock_indicator_visible)
{
return;
}
target_objnum = Player_ai->target_objnum;
Assert(target_objnum != -1);
targetp = &Objects[target_objnum];
// check to see if there are any missile to fire.. we don't want to show the
// lock indicator if there are missiles to fire.
if (!ship_secondary_bank_has_ammo(Player_obj->instance))
{
return;
}
// Get the target's current position on the screen. If he's not on there,
// we're not going to draw the lock indicator even if he's in front
// of our ship, so bail out.
g3_rotate_vertex(&lock_point, lock_point_pos);
g3_project_vertex(&lock_point);
if (lock_point.codes & PF_OVERFLOW)
return;
hud_set_iff_color(targetp);
// nprintf(("Alan","lockx: %d, locky: %d TargetX: %d, TargetY: %d\n", Players[Player_num].lock_indicator_x, Players[Player_num].lock_indicator_y, Player->current_target_sx, Player->current_target_sy));
// We have the coordinates of the lock indicator relative to the target in our "virtual frame"
// so, we calculate where it should be drawn based on the player's viewpoint.
if (Player_ai->current_target_is_locked)
{
sx = fl2i(lock_point.sx);
sy = fl2i(lock_point.sy);
gr_unsize_screen_pos(&sx, &sy);
// show the rotating triangles if target is locked
hud_draw_lock_triangles(sx, sy, frametime);
}
else
{
sx = fl2i(lock_point.sx) - (Player->current_target_sx - Players[Player_num].lock_indicator_x);
sy = fl2i(lock_point.sy) - (Player->current_target_sy - Players[Player_num].lock_indicator_y);
gr_unsize_screen_pos(&sx, &sy);
}
// show locked indicator
/*
if ( Lock_gauge.first_frame >= 0 ) {
gr_set_bitmap(Lock_gauge.first_frame);
gr_aabitmap(sx - Lock_gauge_half_w[gr_screen.res], sy - Lock_gauge_half_h[gr_screen.res]);
} else {
hud_draw_diamond(sx, sy, Lock_target_box_width[gr_screen.res], Lock_target_box_height[gr_screen.res]);
}
*/
Lock_gauge.sx = sx - Lock_gauge_half_w[Hud_reticle_style][gr_screen.res];
Lock_gauge.sy = sy - Lock_gauge_half_h[gr_screen.res];
if (Player_ai->current_target_is_locked)
{
Lock_gauge.time_elapsed = 0.0f;
hud_anim_render(&Lock_gauge, 0.0f, 1);
}
else
{
hud_anim_render(&Lock_gauge, frametime, 1);
}
}