# HG changeset patch
# User Eugen Sawin <sawine@me73.com>
# Date 1302901348 -7200
# Node ID 9c0318d0f1c3e4d767c54b0feb80512416eca75b
# Parent  9c21841b3ef9a563900b6d5fb5af77e193abbe39
Added keyboard camera.

diff -r 9c21841b3ef9 -r 9c0318d0f1c3 scripts/machine.js
--- a/scripts/machine.js	Fri Apr 15 21:37:40 2011 +0200
+++ b/scripts/machine.js	Fri Apr 15 23:02:28 2011 +0200
@@ -1,5 +1,8 @@
 var machine;
 var renderer;
+var controller;
+var camera;
+
 
 function main()
 {
@@ -10,14 +13,17 @@
     var object = new Cube(1, context);
     gl.clearColor(0.0, 0.0, 0.0, 1.0);
     gl.enable(gl.DEPTH_TEST);
-    machine = new Machine(object);
-    renderer = new Renderer(context);    
+    machine = new Machine(object);       
+    camera = new Camera();
+    renderer = new Renderer(camera, context);
+    controller = new Controller(camera, machine, renderer);
     update();
 }
 
 function update()
 {    
     requestAnimFrame(update);
+    controller.update();
     machine.scene.rotation.x += (random(0, 2) - 2) * 0.001; 
     machine.scene.rotation.y += (random(0, 3) - 1) * 0.001; 
     machine.scene.rotation.z += (random(0, 2) - 1) * 0.001;
@@ -30,8 +36,92 @@
     return (min + Math.random() * (max - min));
 }
 
-function Renderer(context)
+function Camera()
 {
+    this.x = 0.0;
+    this.y = 0.0;
+}
+Camera.prototype.moveLeft = function()
+{
+    camera.x += 0.1;
+}
+Camera.prototype.moveRight = function()
+{
+    camera.x -= 0.1;
+}
+Camera.prototype.moveUp = function()
+{
+    camera.y -= 0.1;
+}
+Camera.prototype.moveDown = function()
+{
+    camera.y += 0.1;
+}
+
+function ucode(char)
+{
+    return char.charCodeAt(0);
+}
+     
+function Controller(camera, machine, renderer)
+{ 
+    this.actionMap = {'A': camera.moveLeft,
+                      'D': camera.moveRight,
+                      'W': camera.moveUp,
+                      'S': camera.moveDown};
+    this.keyboard = new Keyboard(this.actionMap);
+    this.mouse = new Mouse();
+   
+}
+Controller.prototype.update = function()
+{
+    this.keyboard.handle();
+}
+
+function Mouse()
+{
+}
+function Keyboard(actionMap)
+{
+    this.actionMap = actionMap;
+    this.pressed = {};
+    document.onkeydown = handleKeyDown;
+    document.onkeyup = handleKeyUp;
+}
+Keyboard.prototype.keyDown = function(event)
+{
+    this.pressed[event.keyCode] = true;    
+}
+Keyboard.prototype.keyUp = function(event)
+{
+    this.pressed[event.keyCode] = false;
+}
+Keyboard.prototype.handle = function()
+{
+    for (key in this.pressed)
+    {
+	if (this.pressed[key])
+	{
+	    //alert(this.pressed[key]);
+	    key = String.fromCharCode(key);
+	    if (this.actionMap[key]) this.actionMap[key](); 
+	}
+    }
+}
+
+function handleKeyDown(event)
+{
+    controller.keyboard.keyDown(event);
+}
+
+function handleKeyUp(event)
+{
+    controller.keyboard.keyUp(event);
+}
+
+function Renderer(camera, context)
+{
+    this.camera = camera;
     this.context = context;
     this.gl = context.gl;
     this.matrixStack = [];
@@ -49,7 +139,7 @@
     mat4.perspective(45, viewport.width / viewport.height, 0.1, 100.0, pMatrix);
 
     mat4.identity(mvMatrix);
-    mat4.translate(mvMatrix, [0.0, 0.0, -7.0]);
+    mat4.translate(mvMatrix, [this.camera.x, this.camera.y, -7.0]);
 
     this.pushMatrix(mvMatrix);
 
@@ -126,7 +216,6 @@
     gl.uniformMatrix4fv(program.pMatrixUniform, false, pMatrix);
     gl.uniformMatrix4fv(program.mvMatrixUniform, false, mvMatrix);
 }
-
 Context.prototype.expand = function()
 { 
     var width = window.innerWidth;