your action is only called once!
you have to add a loop to your action:
Code:
action go_down()
{
	triangle = me;
	while(me)
	{
		if (vec_dist(me.x, character.x) <= 559) //this is the line that's driving me insane!
		{
			ent_remove(me);
			return; //Exit this function
		}
		wait(1);
	}
}




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