I am making a game in Game Maker right now and cannot figure out how to get an objects exact position and have another object move to that position. Can someone please help me?
To get an object's position simply use
xpos = instance.x;
ypos = instance.y;
where instance is the instance id (gained through some method, object id can be used if the instance is the only instantiation of the object).
To start moving towards a position you should set the speed & direction:
direction = point_direction(x,y, instance.x, instance.y);
speed = WANTEDSPEED;