/*
   Seymour Plane Test Model 
  
   Lindsay S. Kay,
   lindsay.kay@xeolabs.com
  
   V0.7.8 introduced a JSON API, with which scene graphs and models (such as the Seymour Plane in this example) can
   be constructed and processed outside of a browser that supports WebGL - unlike JavaScript scenes. JSON is also
   repurposable, and makes better sense for server-client transport. Also, looking to the long-term roadmap, it decouples
   scene definitions from the SceneJS API.
  
   Latest class API Docs are at: http://www.scenejs.org/api-docs.html
   */
  
  SceneJS.createScene({
    type: "scene",
    id: "myScene",
    canvasId: "theCanvas" , // Bind to canvas
    loggingElementId: "theLoggingDiv", // Log to DIV
  
    nodes: [
      {
        type: "lookAt",
        id: "theLookat",
        eye : { x: -1.0, y: 0.0, z: 15 },
        look : { x: -1.0, y: 0, z: 0 },
        up : { y: 1.0 },
  
        nodes: [
          {
            type: "camera",
            optics: {
              type: "perspective",
              fovy : 55.0,
              aspect : 1.47,
              near : 0.10,
              far : 300.0
            },
  
            nodes: [
              {
                type: "light",
                mode:          "dir",
                color:         { r: 1.0, g: 1.0, b: 1.0 },
                dir:          { x: 1.0, y: -0.5, z: -1.0 },
                diffuse:        true,
                specular:        true
              },
              {
                type: "light",
                mode:          "dir",
                color:         { r: 1.0, g: 1.0, b: 1.0 },
                dir:          { x: -1.0, y: -0.5, z: -3.0 },
                diffuse:        true,
                specular:        true
              },
              {
                type: "rotate",
                id: "yaw",
                angle : 0.0 ,
                y : 1.0,
  
                nodes: [
                  {
                    type: "rotate",
                    id: "pitch",
                    angle : 30.0,
                    x : 1.0,
  
                    nodes: [
  
                      /* Integrate our airplane model, defined in seymour-plane-model.js,
                       * which was loaded via a <script> tag in index.html.
                       */
                      planeJSON
                    ]
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  });
  
  /*----------------------------------------------------------------------
   * Disable scene graph compilation (disabled by default in V0.8).
   *
   * This feature is alpha status and may break some scene graphs.
   *
   * It can speed your scene graph up by an order of magnitude - we'll
   * do it here just to show how it's done.
   *
   * http://scenejs.wikispaces.com/V0.8+Branch
   *---------------------------------------------------------------------*/
  
  SceneJS.setDebugConfigs({
    compilation : {
      enabled : false
    }
  });
  
  var pInterval;
  var yaw = 305;
  var pitch = 10;
  var lastX;
  var lastY;
  var dragging = false;
  var canvas = document.getElementById("theCanvas");
  
  function mouseDown(event) {
    lastX = event.clientX;
    lastY = event.clientY;
    dragging = true;
  }
  
  function touchStart(event) {
    lastX = event.targetTouches[0].clientX;
    lastY = event.targetTouches[0].clientY;
    dragging = true;
  }
  
  function mouseUp() {
    dragging = false;
  }
  
  function touchEnd() {
    dragging = false;
  }
  
  function mouseMove(event) {
    var posX = event.clientX;
    var posY = event.clientY;
    actionMove(posX,posY);
  }
  
  function touchMove(event) {
    var posX = event.targetTouches[0].clientX;
    var posY = event.targetTouches[0].clientY;
    actionMove(posX,posY);
  }
  
  function actionMove(posX, posY) {
    if (dragging) {
      yaw += (posX - lastX) * 0.5;
      pitch += (posY - lastY) * 0.5;
      lastX = posX;
      lastY = posY;
  
      var scene = SceneJS.scene("myScene");
      scene.findNode("pitch").set("angle", pitch);
      scene.findNode("yaw").set("angle", yaw);
  
    }
  }
  
  canvas.addEventListener('mousedown', mouseDown, true);
  canvas.addEventListener('mousemove', mouseMove, true);
  canvas.addEventListener('mouseup', mouseUp, true);
  canvas.addEventListener('touchstart', touchStart, true);
  canvas.addEventListener('touchmove', touchMove, true);
  canvas.addEventListener('touchend', touchEnd, true);
  
  SceneJS.scene("myScene").start();