/**
 * Canvas Superset - The apiCanvas properties get moved into the Canvas object itself, and then the instance is created
 * @param graphics GameLib.D3.Graphics
 * @param apiCanvas GameLib.D3.API.Canvas
 * @constructor
 */
GameLib.D3.Canvas = function(
	graphics,
	apiCanvas
) {
	this.graphics = graphics;
	this.graphics.isNotThreeThrow();

	if (GameLib.Utils.UndefinedOrNull(apiCanvas)) {
		apiCanvas = {};
	}

	if (apiCanvas instanceof GameLib.D3.Canvas) {
		return apiCanvas;
	}

	GameLib.D3.API.Canvas.call(
		this,
		apiCanvas.id,
		apiCanvas.name,
		apiCanvas.width,
		apiCanvas.height,
		apiCanvas.parentEntity
	);

    GameLib.Component.call(
        this,
        GameLib.Component.COMPONENT_CANVAS
    );
};

GameLib.D3.Canvas.prototype = Object.create(GameLib.D3.API.Canvas.prototype);
GameLib.D3.Canvas.prototype.constructor = GameLib.D3.Canvas;

/**
 * Creates a light instance
 * @returns {*}
 */
GameLib.D3.Canvas.prototype.createInstance = function() {

    this.instance = document.createElement('canvas');

    this.instance.width = this.width;
    this.instance.height = this.height;

    GameLib.Component.prototype.createInstance.call(this);
};

/**
 * Updates the instance with the current state
 */
GameLib.D3.Canvas.prototype.updateInstance = function() {

    if (GameLib.Utils.UndefinedOrNull(this.instance)) {
        this.createInstance();
    }

    this.instance.width = this.width;
    this.instance.height = this.height;
};

/**
 * Converts a GameLib.D3.Canvas to a GameLib.D3.API.Canvas
 * @returns {GameLib.D3.API.Canvas}
 */
GameLib.D3.Canvas.prototype.toApiObject = function() {
	return new GameLib.D3.API.Canvas(
		this.id,
		this.name,
		this.width,
		this.height,
		GameLib.Utils.IdOrNull(this.parentEntity)
	);
};

/**
 * Returns a new GameLib.D3.Canvas from a GameLib.D3.API.Canvas
 * @param graphics GameLib.D3.Graphics
 * @param objectCanvas GameLib.D3.API.Canvas
 * @returns {GameLib.D3.Canvas}
 */
GameLib.D3.Canvas.FromObject = function(graphics, objectCanvas) {

	return new GameLib.D3.Canvas(
		graphics,
		GameLib.D3.API.Canvas.FromObject(objectCanvas)
	);

};