Particle Simulator based on Peter's physics simulation (http://www.petercollingridge.co.uk/pygame-physics-simulation/creating-pygame-window)

Requires Python 3.4 and Pygame 1.9.2

Run the ParticleSimulator.py script to begin the simulation.

Left click and hold a particle to grab, move, or throw it. Right click displays menu at cursor with various options.

origin/right-click-menu Hold spacebar to make the mouse cursor the center of gravity. 'W' 'S' 'E' 'D' keys change the magnitude of gravity. 'R' inverts the gravity from positive to negative 'C' stop the background from blitting each frame. 'P' pauses simulation