I have one problem though and that seems to be that I can't get any of the physics forces working. I'm trying to create a little physics demo that allows you to pick up objects and throw them. I have the physics world set up and the drag and drop element is working, but for the life of me I can't apply any physics force to simulate the throw on mouse release. My current project can be found here: http://www.codeandvisual.com/test/construct_physics/physics.capx
I've set up last_x and last_y variables on the sprite objects so I can monitor the movement between frames, however I've put that to the side for the time being and am just trying to apply a hard coded force of(1000,-1000) - which to my mind would make it go up and to the right when you release the mouse after dragging a sprite. I've similarly tried setting impulses and setting the velocity directly, but nothing seems to produce any sort of movement besides falling straight down due to gravity.
What am I doing wrong? Eagerly hoping someone can set me on the right path!