How do I Sort the Z Axis by the Y co-ordinate?

I have had this question answered before a year ago but the link that was put in the answer has no expired.

I also want to expand on this by no only sorting sprites order in a layer but also a tilemap. Is that possible?

Thanks

I had done this before, but with sprites only (I didn't use tilemap on my project at that time).

You can do like this:

for each [object] order by [object].Y descending {
	[object] move to top of layer
}[/code:gmbonft5]

Thanks, I don't think it will work for a tilemap though as they can't be in the same family as a sprite

How about storing all related object's UID in an array, sort them, then pick one by one and set it to top?

Probably 2 dimensional array, y(0) = Y coordinate; y(1) = object type ("sprite"/"tilemap"); y(2): UID. This way, you can sort by X axis and get the sort by Y coordinate.

first store each UID in array;
sort array by X axis;
for each array x element {
	if( array.at(array.curX, 1) == "SPRITE") {
		pick [sprite object] with UID = array.at(array.curX, 2);
		move object to top of layer;
	} else {
		pick [tilemap object] with UID = array.at(array.curX, 2);
		move object to top of layer;
	}
}[/code:zpdjcf18]