GameMaker (SOLVED) FC Depth System and Surfaces

[Tobey]

I recently redid my depth "system" which was just depth = -y, and followed Friendly Cosmonauts tutorial on it (

). It works great; however, I have a gore system that uses a surface which gives blood a splatter effect. Unfortunately, this surface is being drawn over everything:

Spoiler: Depth System Code

var dg = depth_grid;
var size = instance_count;
ds_grid_resize(dg, 2, size);

var yy = 0;

var io = ignored_objects;
var io_size = ds_list_size(io);
var n = 0;
var o;

//ADD
with(all){
    for(var i = 0; i < io_size; i ++){
        o = ds_list_find_value(io, i);
        
        if(object_index != o){
            n ++;   
        }
    }
    
    if(n >= io_size){
        dg[# 0, yy] = id;
        dg[# 1, yy] = y;
        
        yy ++;
    }
    
    var n = 0;
}

//SORT
ds_grid_sort(dg, 1, true);

//LOOP & DRAW
var inst;
yy = 0;

repeat(size){
    inst = dg[# 0, yy];
    
    with(inst){
        if(object_get_sprite(object_index) != -1){
            draw_sprite_ext(sprite_index, image_index, x, y, image_xscale, image_yscale, image_angle, image_blend, image_alpha);
        }
        else if(object_is_ancestor(object_index, obj_gore_parent)){
            event_perform(ev_draw, 0);
        }
    }
    
    yy ++;
}

Spoiler: Gore Parent Code

image_xscale -= my_size;
image_yscale = image_xscale;

if(my_spd > 0){
    image_alpha -= random_range(0.05, 0.1);   
}

my_spd = approach(my_spd, 0, my_fric);

if(instance_exists(obj_gore_controller)){
    g = obj_gore_controller;
    
    surface_set_target(g.gore_surface);
    
    draw_sprite_ext(sprite_index, 0, x, y, image_xscale, image_yscale, image_angle, c_white, image_alpha);
    
    for (var i = 0; i < ds_list_size(global.c_objects); i += 1){
        if(place_meeting(x, y, ds_list_find_value(global.c_objects, i))){
            gpu_set_blendmode(bm_subtract);
            draw_sprite_ext(sprite_index, 0, x, y, image_xscale, image_yscale, image_angle, c_white, image_alpha);
            gpu_set_blendmode(bm_normal);
            instance_destroy();
        }
    }
    
    surface_reset_target();
}

if(image_xscale <= 0){
    instance_destroy();   
}

How do I prevent this from happening?

 

[xDGameStudios]

in the depth system you used with(all) this is not very good idea..
you should create a parent for all the objects you want to be depth sorted (the blood splatter - obj_gore_controller - is placed on the floor and should not be depth sorted)
Another thing you should place those effects on another layer.. that is behind the instance layer.

 

[Tobey]

I'm using with(all) because a majority of my objects use the depth system. I have a list of objects that shouldn't be impacted by it such as wall collisions which just saves me a lot of time. The gore objects are in this list of objects. They are also on a layer below everything else.

 

[Tobey]

I have fixed it. I got confused about what controlled the depth and apparently that object was higher than everything else.