/*
<behavior jsname="behavior_door"
      description="Be a door that can open and close">
      <property name="RotationOpen" type="float" default="110.0" />
      <property name="Time" type="float" default="500" />
      <property name="KeyOpenCloseDoor" type="int" default="69" />
</behavior>
*/

// script inspired by the CopperCube example script called 'behavior_moveBetweenPoints.js'
// at the web page: 
//     http://www.ambiera.com/coppercube/doc/index.html
// 
// this script you can set on an object, like a door prefab,
// and it will rotate the door out of the way
// over a period of time in milliseconds
// when triggered by a key press ('E' by default - no reason)
// 
behavior_door = function()
{
	this.LastTime = null;
	this.StartTime = null;
	
	this.StartRotation = null;
	this.EndRotation =   null;
				
	this.State = 0;
						// 0 = start, closed
						// 1 = moving, opening
						// 2 = stopped, open
						// 3 = moving, closing
						// (back to start, 0)
};

// called every frame. 
//   'node' is the scene node where this behavior is attached to.
//   'timeMs' the current time in milliseconds of the scene.
// Returns 'true' if something changed, and 'false' if not.
behavior_door.prototype.onAnimate = function(node, timeMs)
{
	// get the time since the last frame
  
	if (this.LastTime == null)
	{
		// we were never called before, so store the time and cancel
		this.LastTime = timeMs; 
		this.StartRotation = ccbGetSceneNodeProperty(node, 'Rotation');
		this.EndRotation   = ccbGetSceneNodeProperty(node, 'Rotation') + this.RotationOpen;
		return false;
	}
  
	var delta = timeMs - this.LastTime;
	this.LastTime = timeMs;
	if (delta > 200) delta = 200; // never do rotations as if there was more than 200 ms of lag..(?)
   
	// rotate, maybe
	var rot = ccbGetSceneNodeProperty(node, 'Rotation');


	// closed, but need the current time...
	if (this.State == 0) {
		this.StartTime = timeMs;
	}
  
	// opening?
	if (this.State == 1) {
		rot.y +=  ( this.RotationOpen * delta ) / this.Time;
		ccbSetSceneNodeProperty(node, 'Rotation', rot);
		if ( (this.StartTime + this.Time) < timeMs ) { 
		
		
		// opened - so make sure we're in the END rotation
		// UGH ccbSetSceneNodeProperty(node, 'Rotation', this.EndRotation);
		
			// be done
            this.State = 2; // done, opened.
		}
		return true;
	}

	// opened, but need the current time...
	if (this.State == 2) {
		this.StartTime = timeMs;
	}
  
	// closing??
	if (this.State == 3) {
		rot.y -= (this.RotationOpen * delta ) / this.Time;
		ccbSetSceneNodeProperty(node, 'Rotation', rot);
		if ( (this.StartTime + this.Time) < timeMs ) { 
			
		// closed - so make sure we're back to the Start rotation
		// UGH ccbSetSceneNodeProperty(node, 'Rotation', this.StartRotation);
		
			// be done
			this.State = 0;          // done, closed, back to start.
		}
		return true;
	}

	return false;
}


// parameters: key: key id pressed or left up.  
// pressed: true if the key was pressed down, false if left up
behavior_door.prototype.onKeyEvent = function(key, pressed)
{
	if (this.KeyOpenCloseDoor == key) // configurable as a parameter, 32 = space , 69 is letter E
	{
		if (pressed) {
	 
			// if we're in the middle of opening, leave it alone
			if (this.State == 1) {
				return;
			}
		   
			// if we're in the middle of closing, leave it alone
			if (this.State == 3) {
				return;
			}
		   
			if (this.State  == 0) {
				
				this.State = 1;  // start opening
				return;
			} 
		   
			if (this.State == 2) {
				this.State = 3;   // start closing
				return;
			}
			// ignore keypresses in other states
		}
		else
		{
			// if keys weren't pressed, or were, whatever, ignore them.
		}
	}
}