The Dink Network

I figured out a way to make a one frame wait!

All you have to do is to use move_stop with a sprite with a low enough timing and end position that is on opposing direction than the movement.

Here's a modified version of the animation loop from the previous message:

int &seq;

//Timing must be between 1 and 15, so the sprite movement is checked every frame.
sp_timing(&current_sprite, 1);

loop:
&seq = sp_seq(&current_sprite, -1);
if(&seq != 0)
{
	move_stop(&current_sprite, 2, -2147483648, 1);
	goto loop;
}
//Sprite done animating

Since the sprite does not need to move to reach the target, the move_stop returns immediately on the next time the sprite's brain activates, which (due to low sp_timing) is going to be the next frame. The sprite's speed and base walk do not matter and its position will not be changed.
If you don't want to mess with &current_sprite's timing you can create another sprite and use it for sp_timing and move_stop functions.