// 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;
}
}
// Decide which point lock should be homing on
void hud_lock_determine_lock_point(vec3d *lock_world_pos_out)
{
object *target_objp;
ship_weapon *swp;
weapon_info *wip;
vec3d vec_to_lock_pos;
vec3d lock_local_pos;
Assert(Player_ai->target_objnum >= 0);
target_objp = &Objects[Player_ai->target_objnum];
Player->current_target_sx = -1;
Player->current_target_sy = -1;
swp = &Player_ship->weapons;
wip = &Weapon_info[swp->secondary_bank_weapons[swp->current_secondary_bank]];
// If subsystem is targeted, we must try to lock on that
if ( Player_ai->targeted_subsys && !(wip->wi_flags[Weapon::Info_Flags::Homing_javelin]) ) {
hud_lock_update_lock_pos(target_objp);
Player->locking_on_center=0;
Player->locking_subsys=Player_ai->targeted_subsys;
Player->locking_subsys_parent=Player_ai->target_objnum;
} else if ( (wip->wi_flags[Weapon::Info_Flags::Homing_javelin]) && (target_objp->type == OBJ_SHIP)) {
if (!Player->locking_subsys ||
Player->locking_subsys->system_info->type != SUBSYSTEM_ENGINE) {
Player->locking_subsys = ship_get_closest_subsys_in_sight(&Ships[target_objp->instance], SUBSYSTEM_ENGINE, &Player_obj->pos);
}
if (Player->locking_subsys != NULL) {
get_subsystem_world_pos(target_objp, Player->locking_subsys, &lock_world_pos);
Player->locking_on_center=0;
Player->locking_subsys_parent=Player_ai->target_objnum;
} else {
hud_lock_reset();
return;
}
} else {
// See if we already have a successful locked point
if ( hud_lock_has_homing_point() ) {
hud_lock_update_lock_pos(target_objp);
} else {
hud_lock_get_new_lock_pos(target_objp);
}
}
*lock_world_pos_out=lock_world_pos;
vm_vec_sub(&vec_to_lock_pos,&lock_world_pos,&Player_obj->pos);
vm_vec_rotate(&lock_local_pos,&vec_to_lock_pos,&Player_obj->orient);
if ( lock_local_pos.xyz.z > 0.0f ) {
// Get the location of our target in the "virtual frame" where the locking computation will be done
float w = 1.0f / lock_local_pos.xyz.z;
// Let's force our "virtual frame" to be 640x480. -MageKing17
float sx = gr_screen.clip_center_x + (lock_local_pos.xyz.x * VIRTUAL_FRAME_HALF_WIDTH * w);
float sy = gr_screen.clip_center_y - (lock_local_pos.xyz.y * VIRTUAL_FRAME_HALF_HEIGHT * w);
Player->current_target_sx = (int)sx;
Player->current_target_sy = (int)sy;
}
}
// Decide which point lock should be homing on
void hud_lock_determine_lock_point(vec3d* lock_world_pos_out)
{
vec3d lock_world_pos;
object* target_objp;
ship_weapon* swp;
weapon_info* wip;
vec3d vec_to_lock_pos;
vec3d lock_local_pos;
Assert(Player_ai->target_objnum >= 0);
target_objp = &Objects[Player_ai->target_objnum];
Player->current_target_sx = -1;
Player->current_target_sx = -1;
swp = &Player_ship->weapons;
wip = &Weapon_info[swp->secondary_bank_weapons[swp->current_secondary_bank]];
// If subsystem is targeted, we must try to lock on that
if (Player_ai->targeted_subsys && !(wip->wi_flags & WIF_HOMING_JAVELIN))
{
hud_lock_update_lock_pos(target_objp, &lock_world_pos);
Player->locking_on_center = 0;
Player->locking_subsys = Player_ai->targeted_subsys;
Player->locking_subsys_parent = Player_ai->target_objnum;
}
else if (wip->wi_flags & WIF_HOMING_JAVELIN && target_objp->type == OBJ_SHIP)
{
if (!Player->locking_subsys ||
Player->locking_subsys->system_info->type != SUBSYSTEM_ENGINE)
{
Player->locking_subsys = ship_get_closest_subsys_in_sight(&Ships[target_objp->instance],
SUBSYSTEM_ENGINE, &Player_obj->pos);
}
if (Player->locking_subsys != NULL)
{
get_subsystem_world_pos(target_objp, Player->locking_subsys, &lock_world_pos);
Player->locking_on_center = 0;
Player->locking_subsys_parent = Player_ai->target_objnum;
}
else
{
hud_lock_reset();
return;
}
}
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;
vm_vec_sub(&vec_to_lock_pos, &lock_world_pos, &Player_obj->pos);
vm_vec_rotate(&lock_local_pos, &vec_to_lock_pos, &Player_obj->orient);
if (lock_local_pos.xyz.z > 0.0f)
{
// Get the location of our target in the "virtual frame" where the locking computation will be done
float w = 1.0f / lock_local_pos.xyz.z;
float sx = ((gr_screen.clip_center_x * 2.0f) + (lock_local_pos.xyz.x * (gr_screen.clip_center_x * 2.0f) * w)) *
0.5f;
float sy = ((gr_screen.clip_center_y * 2.0f) - (lock_local_pos.xyz.y * (gr_screen.clip_center_y * 2.0f) * w)) *
0.5f;
Player->current_target_sx = (int)sx;
Player->current_target_sy = (int)sy;
}
}