/**
 * Viewport Runtime
 * @param graphics GameLib.D3.Graphics
 * @param apiViewport GameLib.D3.API.Viewport
 * @constructor
 */
GameLib.D3.Viewport = function (
    graphics,
    apiViewport
) {

    this.graphics = graphics;
    this.graphics.isNotThreeThrow();

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

	if (apiViewport instanceof GameLib.D3.Viewport) {
		return apiViewport;
	}

    GameLib.D3.API.Viewport.call(
        this,
  		apiViewport.id,
		apiViewport.name,
		apiViewport.width,
		apiViewport.height,
		apiViewport.x,
		apiViewport.y,
		apiViewport.scenes,
		apiViewport.parentEntity
    );

    this.buildIdToObject();

    this.instance = this.createInstance();
};

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

//GameLib.D3.Viewport.VIEWPORT_TYPE_GAME = 0x1;

/**
 *
 * @param update
 * @returns {*}
 */
GameLib.D3.Viewport.prototype.createInstance = function(update) {
    
    var instance = null;
    
    if (update) {
        instance = this.instance;
    }

    return instance;
};

/**
 *
 */
GameLib.D3.Viewport.prototype.updateInstance = function() {
    this.instance = this.createInstance(true);
};

/**
 * GameLib.D3.Viewport to GameLib.D3.API.Viewport
 * @returns {GameLib.D3.API.Viewport}
 */
GameLib.D3.Viewport.prototype.toApiObject = function() {

    var apiViewport = new GameLib.D3.API.Viewport(
        this.id,
        this.name,
        this.width,
        this.height,
        this.x,
        this.y,
        this.scenes.map(function(scene){
           return GameLib.Utils.IdOrNull(scene);
        }),
        GameLib.Utils.IdOrNull(this.parentEntity)
    );

    return apiViewport;
};

/**
 * GameLib.D3.Viewport from Object Viewport
 * @param graphics
 * @param objectComponent
 * @returns {GameLib.D3.Viewport}
 * @constructor
 */
GameLib.D3.Viewport.FromObject = function(graphics, objectComponent) {

    var apiViewport = GameLib.D3.API.Viewport.FromObject(objectComponent);

    return new GameLib.D3.Viewport(
        graphics,
        apiViewport
    );
};