Platformer door open and close, mask problem?

[Goat Mutation]

Interested in methods for doors that close and open when character is close enough to it.
I took a shot at coding one... but it's not working out. My door has 4 frames. 1 closed frame, 2 opening frames, and 1 open frame.

Create Event

image_index = 0;
image_speed = 0;
open = false;

Step Event

// reaper close to door and hits spacebar, check if opened or closed and set to opposite
if (distance_to_object(obj_reaper) <= 5) and (keyboard_check_pressed(vk_space)) and (open == false){
    mask_index = spr_nomask;
    open = true;
    
    
} else {
    if (distance_to_object(obj_reaper) <= 5) and (keyboard_check_pressed(vk_space)) and (open == true){
        mask_index = spr_door_wood;
        open = false;
        
    }
}

// Play animation based on open variable
if (open == true) and (image_index = 0) {
    image_speed  = 1;
}

if (open == false) and (image_index = 3) {
    image_speed -= 1;
}

// Animation checking for open variable
if (open == true) and (image_index = 3) {
    image_speed = 0;
}

if (open == false) and (image_index = 0) {
    image_speed = 0;
}

My main problem with using this is for some reason I still get some tiny bits of collision mask appearing where the door started even though I have it changing to a nomask sprite. And unless i'm like touching those strange bits of collision that make me stuck in the air, I am not able to close the door. If anyone could help me out, it would be much appreciated!

 

[TheouAegis]

What I would do is when image_index equals 3, set sprite_index to -1. This will remove the sprite from the door. In the Draw Event, check if sprite_index equals -1 then use draw_sprite(spr_door_wood,3,x,y) to simply draw the door as "open". That way it will have no collision. Don't even bother with a mask.

 

[Goat Mutation]

What I would do is when image_index equals 3, set sprite_index to -1. This will remove the sprite from the door. In the Draw Event, check if sprite_index equals -1 then use draw_sprite(spr_door_wood,3,x,y) to simply draw the door as "open". That way it will have no collision. Don't even bother with a mask.

Man I'm such a noob, I tried doing what you said but it still ends up having some random collision box top left corner of my object. Here's what I got..
Step Event

// reaper close to door and hits spacebar, check if opened or closed and set to opposite
if (distance_to_object(obj_reaper) <= 5) and (keyboard_check_pressed(vk_space)) and (open == false){
    open = true;
    
    
} else {
    if (distance_to_object(obj_reaper) <= 5) and (keyboard_check_pressed(vk_space)) and (open == true){
        open = false;
        
    }
}

// Play animation based on open variable
if (open == true) and (image_index = 0) {
    image_speed  = 1;
}

if (open == false) and (image_index = 3) {
    image_speed -= 1;
}

// Animation checking for open variable
if (open == true) and (image_index = 3) {
    sprite_index = -1;
    image_speed = 0;
}

if (open == false) and (image_index = 0) {
    image_speed = 0;
}

Draw Event

if (sprite_index == -1){
    draw_sprite(spr_door_wood,3,x,y);
} else {draw_self()}

I don't understand why there is still some discombulated collision box. Is my draw event coded ok?

 

[TheouAegis]

The Draw is fine.

I've heard someone else say he had issues with spriteless objects still having collisions. Which version of GM are you using?

 

[Goat Mutation]

The Draw is fine.

I've heard someone else say he had issues with spriteless objects still having collisions. Which version of GM are you using?

Game Maker Pro v1.4.1763

Also, I have obj_solid as a parent so I can collide with the door. Removing it as a child for that did stop the collision issue, but then I have no collision. Hoping I can still make use of the obj_solid collision somehow and not be forced to write out more collision coding just for doors. Don't know if that helps.

 

[TheouAegis]

Then just make a new collision event/code strictly for the door. It won't kill the game, it's just extra ROM memory.