★★★ A Rigid Body Physics Engine - oh yeah! ★★★ There are a lot of games around these days that make use of "Rigid body physics engines" (Think Angry birds, Granny smith). I came across a series of articles by Randy Gaul that takes you through the maths for his 'Impulse' Engine and I decided to attempt porting it to Scratch! (Well... someone had to try!). So here is my first cut. ★★★ Useful Keys ★★★ [C] - spawn a Circle. [R] - spawn a Rectangle. [Space] - Toggles between Edit & Simulation Mode. [Mouse] - When simulating this throws balls, when editing, it edits. [Double Click] - in edit mode to freeze or unfreeze an object. ★★★ Credit ★★★ So much thanks goes to Randy Gaul and his original Impulse Engine: http://gamedevelopment.tutsplus.com/tutorials/how-to-create-a-custom-2d-physics-engine-oriented-rigid-bodies--gamedev-8032 Credit also to @TheLogFather for his awesome tri-filler.
thanks griffpatch