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
}
////////////////////////////////////////////////////////////////////////////////////
//////////////////////2D stuff here/////////////////////////////////////////////////
void get_2d_object_under_mouse()
{
//ok, first of all, let's see what objects we have in range...
int i, count, x, y, dist1, dist2, hits;
GLint viewport[4];
GLuint *buffer, z_coordinate;
double matrix[16];
selected_2d_object = -1;
x = (int)-camera_x;
y = (int)-camera_y;
count = 0;
for (i = 0; i < MAX_OBJ_2D; i++)
{
if (obj_2d_list[i])
{
dist1 = x - (int)obj_2d_list[i]->x_pos;
dist2 = y - (int)obj_2d_list[i]->y_pos;
if (dist1 * dist1 + dist2 * dist2 <= ((40 * 40) * (zoom_level / 15.75f)))
{
count++;
}
}
}
if (count == 0)
{
return;
}
count++;
count *= 4;
glGetIntegerv(GL_VIEWPORT, viewport);
buffer = malloc(count * sizeof(GLuint));
glSelectBuffer(count, buffer);
glGetDoublev(GL_PROJECTION_MATRIX, matrix);
glRenderMode(GL_SELECT);
glInitNames();
glPushName(0);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
gluPickMatrix(mouse_x, window_height-mouse_y, 1.0, 1.0, viewport);
glMultMatrixd(matrix);
glMatrixMode(GL_MODELVIEW);
glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT);
glPushMatrix();
glLoadIdentity(); // Reset The Matrix
Move();
for (i = 0; i < MAX_OBJ_2D; i++)
{
if (obj_2d_list[i])
{
dist1 = x - (int)obj_2d_list[i]->x_pos;
dist2 = y - (int)obj_2d_list[i]->y_pos;
if (dist1 * dist1 + dist2 * dist2 <= ((40 * 40) * (zoom_level / 15.75f)))
{
glLoadName(i);
draw_2d_object(obj_2d_list[i]);
}
}
}
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
hits = glRenderMode(GL_RENDER);
z_coordinate = 0xFFFFFFFF;
for (i = 0; i < hits; i++)
{
if (buffer[(i * 4) + 1] < z_coordinate)
{
selected_2d_object = buffer[(i*4)+3];
z_coordinate = buffer[(i*4)+1];
}
}
free(buffer);
}
