/*
 * Javascript/Canvas Textured 3D Renderer v0.3
 * Copyright (c) 2008 Jacob Seidelin, cupboy@gmail.com
 * This software is free to use for non-commercial purposes. For anything else, please contact the author.
 * This is a version modified by Stefano Gioffre'.
 */

var __iLightIDCounter = 0;

Canvas3D.Light = function() {
	this._oPosition = new Canvas3D.Vec3(0,0,0);
	this._oColor = {r:255,g:255,b:255};
	this._fIntensity = 1.0;

	this._iLightID = ++__iLightIDCounter;
};

var proto = Canvas3D.Light.prototype;
	
proto.setPosition = function(oPos) {
	this._oPosition = oPos;
	this._bDirty = true;
}

proto.getPosition = function() {
	return this._oPosition;
}

proto.setColor = function(oColor) {
	this._oColor = oColor;
	this._bDirty = true;
}

proto.getColor = function() {
	return this._oColor;
}

proto.setIntensity = function(fIntensity) {
	this._fIntensity = fIntensity;
	this._bDirty = true;
}

proto.getIntensity = function(fIntensity) {
	return this._fIntensity;
}

proto.setScene = function(oScene) {
	if (this._oScene != oScene) {
		this._oScene = oScene;
		this._bDirty = true;
	}
}

proto.draw = function(oContext, iOffsetX, iOffsetY) {
	var oScene = this._oScene;
	var oCam = oScene.getActiveCamera();

	var oPos2D = oCam.transform2D(oCam.transformPoint(this._oPosition));

	var iRadius = 3;

	oContext.beginPath();
	oContext.moveTo(oPos2D.x + iOffsetX + iRadius, oPos2D.y + iOffsetY);
	oContext.arc(oPos2D.x + iOffsetX, oPos2D.y + iOffsetY, iRadius, 0, 360, false);
	oContext.fillStyle = "rgb(255,255,0)";
	oContext.fill();
}

proto.getDirty = function() {
	return this._bDirty;
}

proto.setDirty = function(bDirty) {
	this._bDirty = bDirty;
}