sawine@28: function Node(position, rotation, geometry)
sawine@28: {
sawine@28:     this.pos = position;
sawine@28:     this.rot = rotation;
sawine@28:     this.geometry = geometry;
sawine@28:     this.children = [];
sawine@28: }
sawine@28: Node.prototype.update = function(time)
sawine@28: {
sawine@28:     // this.right = [1, 0, 0];
sawine@28:     // this.up = [0, 1, 0];
sawine@28:     // this.target = [0, 0, -1];
sawine@28:     // var x = vec3.dot([1, 0, 0], this.pos);
sawine@28:     // var y = vec3.dot([0, 1, 0], this.pos);
sawine@28:     // var z = vec3.dot([0, 0, -1], this.pos);
sawine@28:     // this.matrix = mat4.create([this.right[0], this.up[0], -this.target[0], 0,
sawine@28:     //  			       this.right[1], this.up[1], -this.target[1], 0,
sawine@28:     //  			       this.right[2], this.up[2], -this.target[2], 0,
sawine@28:     //  			       -x, -y, z, 1]); 
sawine@28:     for (var id in this.children) this.children[id].update(time);
sawine@28: }
sawine@28: 
sawine@35: function CubeVbo(size, context)
sawine@24: {
sawine@24:     var gl = context.gl;
sawine@28:     this.size = size || 1;    
sawine@24:     this.positionBuffer = gl.createBuffer();
sawine@24:     gl.bindBuffer(gl.ARRAY_BUFFER, this.positionBuffer);
sawine@24:     var vertices = [
sawine@24: 	     // Front face
sawine@24:             -1.0, -1.0,  1.0,
sawine@24:              1.0, -1.0,  1.0,
sawine@24:              1.0,  1.0,  1.0,
sawine@24:             -1.0,  1.0,  1.0,
sawine@24:  
sawine@24:             // Back face
sawine@24:             -1.0, -1.0, -1.0,
sawine@24:             -1.0,  1.0, -1.0,
sawine@24:              1.0,  1.0, -1.0,
sawine@24:              1.0, -1.0, -1.0,
sawine@24:  
sawine@24:             // Top face
sawine@24:             -1.0,  1.0, -1.0,
sawine@24:             -1.0,  1.0,  1.0,
sawine@24:              1.0,  1.0,  1.0,
sawine@24:              1.0,  1.0, -1.0,
sawine@24:  
sawine@24:             // Bottom face
sawine@24:             -1.0, -1.0, -1.0,
sawine@24:              1.0, -1.0, -1.0,
sawine@24:              1.0, -1.0,  1.0,
sawine@24:             -1.0, -1.0,  1.0,
sawine@24:  
sawine@24:             // Right face
sawine@24:              1.0, -1.0, -1.0,
sawine@24:              1.0,  1.0, -1.0,
sawine@24:              1.0,  1.0,  1.0,
sawine@24:              1.0, -1.0,  1.0,
sawine@24:  
sawine@24:             // Left face
sawine@24:             -1.0, -1.0, -1.0,
sawine@24:             -1.0, -1.0,  1.0,
sawine@24:             -1.0,  1.0,  1.0,
sawine@24:             -1.0,  1.0, -1.0];
sawine@24:     gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(vertices), gl.STATIC_DRAW);
sawine@24:     this.positionBuffer.itemSize = 3;
sawine@24:     this.positionBuffer.numItems = 24;
sawine@24: 
sawine@25:     this.normalBuffer = gl.createBuffer();
sawine@25:     gl.bindBuffer(gl.ARRAY_BUFFER, this.normalBuffer);
sawine@25:     var normals = [// font face
sawine@25: 		   0.0, 0.0, 1.0,
sawine@25: 		   0.0, 0.0, 1.0,
sawine@25: 		   0.0, 0.0, 1.0,
sawine@25: 		   0.0, 0.0, 1.0,
sawine@25: 		   // back face
sawine@25: 		   0.0, 0.0, -1.0,
sawine@25: 		   0.0, 0.0, -1.0,
sawine@25: 		   0.0, 0.0, -1.0,
sawine@25: 		   0.0, 0.0, -1.0,
sawine@25: 		   // top face
sawine@25: 		   0.0, 1.0, 0.0,
sawine@25: 		   0.0, 1.0, 0.0,
sawine@25: 		   0.0, 1.0, 0.0, 
sawine@25: 		   0.0, 1.0, 0.0,
sawine@25: 		   // bottom face
sawine@25: 		   0.0, -1.0, 0.0,
sawine@25: 		   0.0, -1.0, 0.0,
sawine@25: 		   0.0, -1.0, 0.0,
sawine@25: 		   0.0, -1.0, 0.0,
sawine@25: 		   // right face
sawine@25: 		   1.0, 0.0, 0.0,
sawine@25: 		   1.0, 0.0, 0.0,
sawine@25: 		   1.0, 0.0, 0.0,
sawine@25: 		   1.0, 0.0, 0.0,
sawine@25: 		   // left face
sawine@25: 		   -1.0, 0.0, 0.0,
sawine@25: 		   -1.0, 0.0, 0.0,
sawine@25: 		   -1.0, 0.0, 0.0,
sawine@25: 		   -1.0, 0.0, 0.0];
sawine@25:     gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(normals), gl.STATIC_DRAW);
sawine@25:     this.normalBuffer.itemSize = 3;
sawine@25:     this.normalBuffer.numItems = 24;
sawine@25: 
sawine@24:     this.colourBuffer = gl.createBuffer();
sawine@24:     gl.bindBuffer(gl.ARRAY_BUFFER, this.colourBuffer);
sawine@24:     var alpha = 1.0;
sawine@25:     var uni = [1.0, 1.0, 1.0, alpha];
sawine@25:     var colours = [[0.0, 0.0, 0.0, alpha],
sawine@25: 		   [0.0, 0.0, 0.0, alpha],
sawine@25: 		   [0.0, 0.0, 0.0, alpha],
sawine@25: 		   [0.0, 0.0, 0.0, alpha],
sawine@25: 		   [0.0, 0.0, 0.0, alpha],
sawine@25: 		   [0.0, 0.0, 0.0, alpha]];
sawine@24:     var unpackedColours = [];
sawine@24:     for (var i in colours)
sawine@24:     {
sawine@25: 	var colour = uni;//colours[i];
sawine@24: 	for (var j = 0; j < 4; j++)
sawine@24: 	{
sawine@24: 	    unpackedColours = unpackedColours.concat(colour);
sawine@24: 	}
sawine@24: 	//colours = colours.concat([0.5, 0.5, 1.0, 1.0]);
sawine@24:     }
sawine@24:     gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(unpackedColours), gl.STATIC_DRAW);
sawine@24:     this.colourBuffer.itemSize = 4;
sawine@24:     this.colourBuffer.numItems = 24;
sawine@24: 
sawine@24:     this.indexBuffer = gl.createBuffer();
sawine@24:     gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.indexBuffer);
sawine@24:     var indices = [0, 1, 2, 0, 2, 3,
sawine@24: 		   4, 5, 6, 4, 6, 7,
sawine@24: 		   8, 9, 10, 8, 10, 11,
sawine@24: 		   12, 13, 14, 12, 14, 15,
sawine@24: 		   16, 17, 18, 16, 18, 19,
sawine@24: 		   20, 21, 22, 20, 22, 23];
sawine@24:     gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices), gl.STATIC_DRAW);
sawine@24:     this.indexBuffer.itemSize = 1;
sawine@24:     this.indexBuffer.numItems = 36;
sawine@35: }
sawine@35: 
sawine@35: var id = 0;
sawine@35: function Cube(vbo)
sawine@35: {
sawine@35:     this.id = id++;
sawine@35:     this.vbo = vbo;
sawine@24: }