Sprite Z ordering...

You could create a custom type which has two fields, one for the Z depth and one for the sprite object. Create a Compare() method so that the type can be sorted in a TList.

Type ZSortable
	Field z:Float
	Field o:Object 'Replace this with your sprite

	Method Compare(other:Object)
		If ZSortable(other).z < z Return -1
		Return 1
	End Method
End Type

Alternatively, you could just add a Compare method to your Sprite type which sorts according to z-depth.