sawine@2: var machine;
sawine@8: var renderer;
sawine@11: var controller;
sawine@11: var camera;
sawine@19: var cameraSpeed = {"h": 0.1, "v": 0.1, "zoom": 0.5, "pitch": 0.5, "yaw": 0.5};
sawine@13: var keyActionMap = {'A': moveCameraLeft,
sawine@13: 		 'D': moveCameraRight,
sawine@13: 		 'W': moveCameraUp,
sawine@13: 		 'S': moveCameraDown};
sawine@14: var mouseActionMap = {"pitch": [[true, false, false], pitchCamera],
sawine@14: 		      "yaw": [[true, false, false], yawCamera],
sawine@14:                       "wheel": zoomCamera};
sawine@24: include("scripts/cube.js");
sawine@24: include("scripts/renderer.js");
sawine@2: 
sawine@2: function main()
sawine@2: {
sawine@2:     var canvas = document.getElementById("machine");
sawine@2:     var context = new Context(canvas);
sawine@10:     context.expand();
sawine@2:     var gl = context.gl;
sawine@7:     var object = new Cube(1, context);
sawine@2:     gl.clearColor(0.0, 0.0, 0.0, 1.0);
sawine@2:     gl.enable(gl.DEPTH_TEST);
sawine@11:     machine = new Machine(object);       
sawine@22:     camera = new Camera(cameraSpeed, [0, 5, 20]);
sawine@11:     renderer = new Renderer(camera, context);
sawine@13:     controller = new Controller(keyActionMap, mouseActionMap, camera, machine, renderer);
sawine@6:     update();
sawine@13:     window.onresize = expandContext;
sawine@13:     document.onkeydown = handleKeyDown;
sawine@13:     document.onkeyup = handleKeyUp;
sawine@13:     canvas.onmousedown = handleMouseDown;
sawine@13:     document.onmouseup = handleMouseUp;
sawine@13:     document.onmousemove = handleMouseMove;
sawine@14:     document.onmousewheel = handleMouseWheel;
sawine@13:     //read("config/camera", configureCamera);
sawine@13: }
sawine@13: 
sawine@13: function configureCamera(config) {
sawine@13:     alert(config);
sawine@6: }
sawine@6: 
sawine@6: function update()
sawine@6: {    
sawine@7:     requestAnimFrame(update);
sawine@11:     controller.update();
sawine@10:     machine.scene.rotation.x += (random(0, 2) - 2) * 0.001; 
sawine@10:     machine.scene.rotation.y += (random(0, 3) - 1) * 0.001; 
sawine@10:     machine.scene.rotation.z += (random(0, 2) - 1) * 0.001;
sawine@8:     machine.update(new Date().getTime());
sawine@8:     renderer.update(machine.scene);
sawine@2: }
sawine@2: 
sawine@9: function random(min, max)
sawine@9: {
sawine@10:     return (min + Math.random() * (max - min));
sawine@9: }
sawine@9: 
sawine@22: function normalize(vectors)
sawine@22: {
sawine@22:     for (var v in vectors) vec3.normalize(v);
sawine@22: }
sawine@22: 
sawine@22: function Camera(speed, pos, up, right, target)
sawine@4: {
sawine@12:     this.speed = speed;
sawine@22:     this.pos = vec3.create(pos || [0, 0, 7]);
sawine@22:     this.up = vec3.create(up || [0, 1, 0]);
sawine@22:     this.right = vec3.create(right || [1, 0, 0]);
sawine@22:     this.target = vec3.create(target || [0, 0, -1]);
sawine@22:     normalize([this.up, this.right, this.target]);
sawine@16:     this.matrix = mat4.create();
sawine@11: }
sawine@11: Camera.prototype.moveLeft = function()
sawine@11: {
sawine@19:     var dir = vec3.create(this.right);
sawine@19:     vec3.scale(dir, -this.speed.h);
sawine@19:     vec3.add(this.pos, dir);
sawine@11: }
sawine@11: Camera.prototype.moveRight = function()
sawine@11: {
sawine@19:     var dir = vec3.create(this.right);
sawine@19:     vec3.scale(dir, this.speed.h);
sawine@19:     vec3.add(this.pos, dir);
sawine@11: }
sawine@11: Camera.prototype.moveUp = function()
sawine@19: {  
sawine@19:     var dir = vec3.create(this.up);
sawine@19:     vec3.scale(dir, this.speed.v);
sawine@19:     vec3.add(this.pos, dir);
sawine@11: }
sawine@11: Camera.prototype.moveDown = function()
sawine@19: { 
sawine@19:     var dir = vec3.create(this.up);
sawine@19:     vec3.scale(dir, -this.speed.v);
sawine@19:     vec3.add(this.pos, dir);
sawine@13: }
sawine@14: Camera.prototype.zoom = function(delta) 
sawine@13: {
sawine@19:     var dir = vec3.create(this.target);
sawine@20:     vec3.scale(dir, delta * this.speed.zoom);
sawine@19:     vec3.add(this.pos, dir); 
sawine@13: }
sawine@19: Camera.prototype.pitch = function(delta)
sawine@13: {
sawine@21:     delta *= -this.speed.pitch;
sawine@21:     vec3.scale(this.target, Math.cos(delta));
sawine@21:     vec3.scale(this.up, Math.sin(delta));
sawine@21:     vec3.add(this.target, this.up);
sawine@21:     vec3.normalize(this.target);
sawine@21:     vec3.cross(this.target, this.right, this.up);
sawine@21:     vec3.scale(this.up, -1);
sawine@13: }
sawine@19: Camera.prototype.yaw = function(delta)
sawine@13: {
sawine@21:     delta *= -this.speed.yaw;
sawine@21:     vec3.scale(this.right, Math.cos(delta));
sawine@21:     vec3.scale(this.target, Math.sin(delta));
sawine@21:     vec3.add(this.right, this.target);
sawine@21:     vec3.normalize(this.right);
sawine@21:     vec3.cross(this.right, this.up, this.target);
sawine@21:     vec3.scale(this.target, -1);
sawine@19: }
sawine@19: Camera.prototype.roll = function(delta)
sawine@19: {
sawine@19:     
sawine@12: }
sawine@15: Camera.prototype.update = function()
sawine@15: {
sawine@19:     var x = vec3.dot(this.right, this.pos);
sawine@19:     var y = vec3.dot(this.up, this.pos);
sawine@19:     var z = vec3.dot(this.target, this.pos);
sawine@19:     this.matrix = mat4.create([this.right[0], this.up[0], -this.target[0], 0,
sawine@19: 			       this.right[1], this.up[1], -this.target[1], 0,
sawine@19: 			       this.right[2], this.up[2], -this.target[2], 0,
sawine@22: 			       -x, -y, z, 1]);    
sawine@15: }
sawine@12: 
sawine@13: function Controller(keyActionMap, mouseActionMap, camera, machine, renderer)
sawine@11: { 
sawine@13:     this.keyboard = new Keyboard(keyActionMap);
sawine@13:     this.mouse = new Mouse(mouseActionMap);
sawine@11:    
sawine@11: }
sawine@11: Controller.prototype.update = function()
sawine@11: {
sawine@11:     this.keyboard.handle();
sawine@13:     this.mouse.handle();
sawine@11: }
sawine@11: 
sawine@13: function Mouse(actionMap)
sawine@11: {
sawine@13:     this.actionMap = actionMap;
sawine@14:     this.pressed = [false, false, false];   
sawine@14:     this.wheelDelta = 0;
sawine@11: }
sawine@13: Mouse.prototype.buttonDown = function(event)
sawine@13: {
sawine@13:     this.pressed[event.which-1] = true;
sawine@13: }
sawine@13: Mouse.prototype.buttonUp = function(event)
sawine@13: {
sawine@13:     this.pressed[event.which-1] = false;
sawine@13: }
sawine@13: Mouse.prototype.move = function(event)
sawine@13: {
sawine@14:     this.currentPos = [event.clientX, event.clientY];
sawine@14: }
sawine@14: Mouse.prototype.moveWheel = function(event)
sawine@14: { 
sawine@14:     this.wheelDelta += event.wheelDelta;
sawine@14: }
sawine@14: Mouse.prototype.handle = function()
sawine@14: {
sawine@14:     var pos = this.currentPos;
sawine@14:     if (pos && this.lastPos)
sawine@13:     {
sawine@13: 	var delta = [pos[0] - this.lastPos[0], pos[1] - this.lastPos[1]];
sawine@14: 	delta = normaliseMoveDelta(delta);
sawine@13: 	var action = this.actionMap["pitch"];
sawine@13: 	if (delta[1] != 0 && action) 
sawine@13: 	{
sawine@13: 	    for (var i = 0; i < 3; i++)
sawine@13: 	    {
sawine@13: 		if (this.pressed[i] != action[0][i]) break;
sawine@13: 		if (i == 2) action[1](delta[1]);
sawine@13: 	    }
sawine@13: 	} 
sawine@13: 	action = this.actionMap["yaw"];
sawine@13: 	if (delta[0] != 0 && action) 
sawine@13: 	{
sawine@13: 	    for (var i = 0; i < 3; i++)
sawine@13: 	    {
sawine@13: 		if (this.pressed[i] != action[0][i]) break;
sawine@13: 		if (i == 2) action[1](delta[0]);
sawine@13: 	    }
sawine@13: 	}
sawine@13:     }
sawine@13:     this.lastPos = pos;
sawine@14:     
sawine@14:     if (this.wheelDelta != 0)
sawine@14:     {
sawine@14: 	var delta = normaliseWheelDelta(this.wheelDelta);
sawine@14: 	var action = this.actionMap["wheel"];
sawine@21: 	if (delta != 0 && action) action(delta);
sawine@14: 	this.wheelDelta = 0;
sawine@14:     }
sawine@14:     
sawine@13: }
sawine@13: 
sawine@14: function normaliseMoveDelta(delta)
sawine@13: {
sawine@13:     var width = renderer.context.canvas.width;
sawine@13:     var height = renderer.context.canvas.height;
sawine@13:     return [delta[0] / width, delta[1] / height];
sawine@13: }
sawine@13: 
sawine@14: function normaliseWheelDelta(delta)
sawine@14: {
sawine@14:     return delta / 60;
sawine@14: }
sawine@14: 
sawine@11: function Keyboard(actionMap)
sawine@11: {
sawine@11:     this.actionMap = actionMap;
sawine@11:     this.pressed = {};
sawine@11: }
sawine@11: Keyboard.prototype.keyDown = function(event)
sawine@11: {
sawine@11:     this.pressed[event.keyCode] = true;    
sawine@11: }
sawine@11: Keyboard.prototype.keyUp = function(event)
sawine@11: {
sawine@11:     this.pressed[event.keyCode] = false;
sawine@11: }
sawine@11: Keyboard.prototype.handle = function()
sawine@11: {
sawine@11:     for (key in this.pressed)
sawine@11:     {
sawine@11: 	if (this.pressed[key])
sawine@11: 	{
sawine@11: 	    key = String.fromCharCode(key);
sawine@11: 	    if (this.actionMap[key]) this.actionMap[key](); 
sawine@11: 	}
sawine@11:     }
sawine@11: }
sawine@11: 
sawine@5: 
sawine@5: 
sawine@5: function Machine(scene)
sawine@4: {
sawine@5:     this.scene = scene;
sawine@8:     this.lastUpdate = 0;
sawine@5: }
sawine@8: Machine.prototype.update = function(time)
sawine@5: {
sawine@8:     if (this.lastUpdate != 0)
sawine@8:     {
sawine@9: 	var diff = time - this.lastUpdate;
sawine@8: 	
sawine@8:     }
sawine@8:     this.lastUpdate = time;
sawine@4: }
sawine@4: 
sawine@10: 
sawine@2: 
sawine@2: 
sawine@4: 
sawine@13: 
sawine@13: function read(file, handler)
sawine@13: {
sawine@13:     var request = new XMLHttpRequest();
sawine@13:     request.open("GET", file);
sawine@13:     request.onreadystatechange = function() {
sawine@13: 	alert(request.readyState);
sawine@13: 	if (request.readyState == 4) {
sawine@13: 	    handler(request.responseText);
sawine@13: 	}
sawine@13:     }
sawine@13:     request.send();
sawine@13: }		
sawine@13: 
sawine@13: // event handler
sawine@13: function expandContext()
sawine@13: {
sawine@13:     renderer.context.expand();
sawine@13: }
sawine@13: 
sawine@13: function moveCameraLeft()
sawine@13: {
sawine@13:     camera.moveLeft();
sawine@13: }
sawine@13: 
sawine@13: function moveCameraRight()
sawine@13: {
sawine@13:     camera.moveRight();
sawine@13: }
sawine@13: 
sawine@13: function moveCameraUp()
sawine@13: {
sawine@13:     camera.moveUp();
sawine@13: }
sawine@13: 
sawine@13: function moveCameraDown()
sawine@13: {
sawine@13:     camera.moveDown();
sawine@13: }
sawine@13: 
sawine@14: function zoomCamera(delta)
sawine@14: {
sawine@14:     camera.zoom(delta);
sawine@14: }
sawine@14: 
sawine@13: function pitchCamera(delta)
sawine@13: {
sawine@19:     camera.pitch(delta);
sawine@13: }
sawine@13: 
sawine@13: function yawCamera(delta)
sawine@13: {
sawine@19:     camera.yaw(delta);
sawine@13: }
sawine@13: 
sawine@13: function handleKeyDown(event)
sawine@13: {
sawine@13:     controller.keyboard.keyDown(event);
sawine@13: }
sawine@13: 
sawine@13: function handleKeyUp(event)
sawine@13: {
sawine@13:     controller.keyboard.keyUp(event);
sawine@13: }
sawine@13: 
sawine@13: function handleMouseDown(event)
sawine@13: {
sawine@13:     controller.mouse.buttonDown(event);
sawine@13: }
sawine@13: 
sawine@13: function handleMouseUp(event)
sawine@13: {
sawine@13:     controller.mouse.buttonUp(event);
sawine@13: }
sawine@13: 
sawine@13: function handleMouseMove(event)
sawine@13: {
sawine@13:     controller.mouse.move(event);
sawine@13: }
sawine@14: 
sawine@14: function handleMouseWheel(event)
sawine@14: {
sawine@14:     controller.mouse.moveWheel(event);
sawine@14: }