void get_2d_object_under_mouse()
{
unsigned int i, l;
float least_z = 1.0f;
//First draw everyone with the same alpha test
glPushMatrix();
glClearDepth(least_z);
glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT);
for (i = get_intersect_start(main_bbox_tree, TYPE_2D_NO_ALPHA_OBJECT); i < get_intersect_stop(main_bbox_tree, TYPE_2D_NO_ALPHA_OBJECT); i++)
{
l = get_intersect_item_ID(main_bbox_tree, i);
#ifdef EXTRA_DEBUG
if (!obj_2d_list[l])
{
ERR();
continue;
}
#endif
draw_2d_object(obj_2d_list[l]);
if(evaluate_collision(&least_z)){
selected_2d_object = l;
}
}
//Then draw all that needs a change
for (i = get_intersect_start(main_bbox_tree, TYPE_2D_ALPHA_OBJECT); i < get_intersect_stop(main_bbox_tree, TYPE_2D_ALPHA_OBJECT); i++)
{
l = get_intersect_item_ID(main_bbox_tree, i);
#ifdef EXTRA_DEBUG
if (!obj_2d_list[l])
{
ERR();
continue;
}
#endif
draw_2d_object(obj_2d_list[l]);
if(evaluate_collision(&least_z)){
selected_2d_object = l;
}
}
glPopMatrix();
#ifdef OPENGL_TRACE
CHECK_GL_ERRORS();
#endif //OPENGL_TRACE
}
void display_2d_objects()
{
unsigned int i, l, start, stop;
#ifdef SIMPLE_LOD
int dist;
int x, y;
#endif //SIMPLE_LOD
#ifdef CLUSTER_INSIDES_OLD
short cluster = get_actor_cluster ();
#endif
#ifdef SIMPLE_LOD
x= -camera_x;
y= -camera_y;
#endif //SIMPLE_LOD
//First draw everyone with the same alpha test
#ifdef FSAA
if (fsaa > 1)
{
glEnable(GL_MULTISAMPLE);
}
#endif /* FSAA */
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GREATER, 0.18f);
if (!dungeon && !(!clouds_shadows && !use_shadow_mapping))
{
if(clouds_shadows)
{
//bind the detail texture
ELglActiveTextureARB(detail_unit);
glEnable(GL_TEXTURE_2D);
//glBindTexture(GL_TEXTURE_2D, texture_cache[ground_detail_text].texture_id);
bind_texture_unbuffered(ground_detail_text);
}
ELglActiveTextureARB(base_unit);
glEnable(GL_TEXTURE_2D);
}
get_intersect_start_stop(main_bbox_tree, TYPE_2D_NO_ALPHA_OBJECT, &start, &stop);
for (i = start; i < stop; i++)
{
l = get_intersect_item_ID(main_bbox_tree, i);
#ifdef CLUSTER_INSIDES_OLD
if (obj_2d_list[l]->cluster && obj_2d_list[l]->cluster != cluster)
// Object is on a different cluster as our actor, don't show it
continue;
#endif
#ifdef SIMPLE_LOD
// simple size/distance culling
dist= (x-obj_2d_list[l]->x_pos)*(x-obj_2d_list[l]->x_pos) + (y-obj_2d_list[l]->y_pos)*(y-obj_2d_list[l]->y_pos);
if(/*dist > 10*10 &&*/ 1000*max2f(obj_2d_list[l]->obj_pointer->x_size, obj_2d_list[l]->obj_pointer->y_size)/(dist) < 5) continue;
#endif //SIMPLE_LOD
draw_2d_object(obj_2d_list[l]);
}
//Then draw all that needs a change
get_intersect_start_stop(main_bbox_tree, TYPE_2D_ALPHA_OBJECT, &start, &stop);
for (i = start; i < stop; i++)
{
l = get_intersect_item_ID(main_bbox_tree, i);
#ifdef SIMPLE_LOD
// simple size/distance culling
dist= (x-obj_2d_list[l]->x_pos)*(x-obj_2d_list[l]->x_pos) + (y-obj_2d_list[l]->y_pos)*(y-obj_2d_list[l]->y_pos);
if(/*dist > 10*10 &&*/ 1000*max2f(obj_2d_list[l]->obj_pointer->x_size, obj_2d_list[l]->obj_pointer->y_size)/(dist) < 5) continue;
#endif //SIMPLE_LOD
glAlphaFunc(GL_GREATER, obj_2d_list[l]->obj_pointer->alpha_test);
draw_2d_object(obj_2d_list[l]);
}
if (!dungeon && !(!clouds_shadows && !use_shadow_mapping))
{
//disable the multitexturing
ELglActiveTextureARB(detail_unit);
glDisable(GL_TEXTURE_2D);
ELglActiveTextureARB(base_unit);
}
#ifdef FSAA
if (fsaa > 1)
{
glDisable(GL_MULTISAMPLE);
}
#endif /* FSAA */
glDisable(GL_ALPHA_TEST);
#ifdef OPENGL_TRACE
CHECK_GL_ERRORS();
#endif //OPENGL_TRACE
}
void draw_3d_objects(unsigned int object_type)
{
unsigned int start, stop;
unsigned int i, l;
int is_selflit, is_transparent, is_ground;
#ifdef SIMPLE_LOD
int x, y, dist;
#endif
#ifdef CLUSTER_INSIDES_OLD
short cluster = get_actor_cluster ();
#endif
#ifdef SIMPLE_LOD
x= -camera_x;
y= -camera_y;
#endif
cur_e3d= NULL;
#ifdef DEBUG
cur_e3d_count= 0;
#endif //DEBUG
get_intersect_start_stop(main_bbox_tree, object_type, &start, &stop);
// nothing to draw?
if(start >= stop){
return;
}
// reduce CPU usage while minimized
if(!(SDL_GetAppState()&SDL_APPACTIVE)){
// not actually drawing, fake it
// now loop through each object
for (i=start; i<stop; i++)
{
int j;
j = get_intersect_item_ID(main_bbox_tree, i);
l = get_3dobject_index(j);
if (objects_list[l] == NULL) continue;
//track the usage
cache_use(objects_list[l]->e3d_data->cache_ptr);
}
// and all done
return;
}
// find the modes we need
is_selflit= is_self_lit_3d_object(object_type);
is_transparent= is_alpha_3d_object(object_type);
is_ground= is_ground_3d_object(object_type);
// set the modes we need
if (is_selflit && (!is_day || dungeon))
{
glDisable(GL_LIGHTING);
}
#ifdef FSAA
if (fsaa > 1)
{
glEnable(GL_MULTISAMPLE);
}
#endif /* FSAA */
if(is_transparent) {
#ifdef NEW_ALPHA
if(use_3d_alpha_blend){
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
}
#endif //NEW_ALPHA
//enable alpha filtering, so we have some alpha key
glEnable(GL_ALPHA_TEST);
if(is_ground)glAlphaFunc(GL_GREATER,0.23f);
#ifdef OLD_MISC_OBJ_DIR
else glAlphaFunc(GL_GREATER,0.06f);
#else
else glAlphaFunc(GL_GREATER,0.3f);
#endif
glDisable(GL_CULL_FACE);
}