KeyMaster-

//Note: This does _not_ compile, it's just to demonstrate the relevant physics bits

class Main extends luxe.Game {
	var fieldWidth:Int = 60;
	var fieldDepth:Int = 60;
	var physTimeStep:Float = 1 / 60;
	var physTimeCounter:Float = 0;
	
	var springK:Float = 100;
	var springDampening:Float = 0.00;

KeyMaster-

//The source texture that will be transformed
uniform sampler2D tex0;

//The texture coordinate passed in from the vertex shader (the default luxe vertex shader is suffice)
varying vec2 tcoord;

//x: width of the texture divided by the radius that represents the top of the image (normally screen width / radius)
//y: height of the texture divided by the radius representing the top of the image (normally screen height / radius)
uniform vec2 sizeOverRadius;

KeyMaster-

// Just position and velocity along one dimension. We're assuming the particle has a mass of 1.
#[derive(Clone)]
struct State {
  x: f64,
  v: f64,
}


trait Integrator {
  fn step(&mut self, state: State, sim: &Simulation, dt: f64) -> State;

KeyMaster-

//To be used on shadertoy.com
//Uses the image at iChannel0 and warps it into polar coordinates
void mainImage( out vec4 fragColor, in vec2 fragCoord )
{
    vec2 relativePos = fragCoord.xy - (iResolution.xy / 2.0);
    vec2 polar;
    polar.y = sqrt(relativePos.x * relativePos.x + relativePos.y * relativePos.y);
    polar.y /= iResolution.x / 2.0;
    polar.y = 1.0 - polar.y;

KeyMaster-

//Copyright (c) 2014 Tilman Schmidt (@KeyMaster_)

//Permission is hereby granted, free of charge, to any person obtaining a copy
//of this software and associated documentation files (the "Software"), to deal
//in the Software without restriction, including without limitation the rights
//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//copies of the Software, and to permit persons to whom the Software is
//furnished to do so, subject to the following conditions:

//The above copyright notice and this permission notice shall be included in