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[Phant00m]

Hi,

First post here on the Tigsource forums, been lurking just as a guest for a while now (actually started of with Derek's GM tutorials).
 
Currently I'm making a fairly simple platformer game (bases off RM2KDev's physics-based platform playlist featured on the "Advanced" section of GM tutorials on the GM website), but I'm slowing adding on new mechanics as a learning experience.
 
One I'm currently having trouble with is making a "mimic" of the player.
 
I am currently using an object which stores the players movement using queues, and then draws a sprite using queue on a slight delay (as if it is chasing the players).
 
Code is as follows...:
Create:

yfol = ds_queue_create();
xfol = ds_queue_create();
alarm[2] = room_speed;
active = 0;

Alarm 2:

active = 1;

Step:

ds_queue_enqueue(xfol, o_Player.x);
ds_queue_enqueue(yfol, o_Player.y);
if active
{
    x = ds_queue_dequeue(xfol);
    y = ds_queue_dequeue(yfol);
}

Draw:

draw_sprite(s_Player_Trail,0,x,y);



This is all well and good when using sprites, and I am really happy with the result (looks smooth, accurate, etc.)
 
However I want to expand it further, and I'm not sure where to go next.
 
For example, how would I make it so that the player can collide with this "sprite", and make it restart the room (what I'm currently trying to do). How would I go about doing something like that in the Draw Event, or would I have to change something?
 
Looking for some advice, it is greatly appreciated.
 
Thanks!

[ProgramGamer]

Well, you seem to be using the x and y position of the object following the player, so you would only really need to add a mask to that object to make it register collisions. You'd then need to add a collision detection event in your player object where if the player touches the trail object, it restarts the room.

Actually, I'm pretty sure Game Maker uses the mask of the current sprite by default, so I'm pretty confident in saying you only need the collision detection. I'm also pretty sure the code in your draw event is superfluous.