/**
 * Viewport Runtime
 * @param graphics GameLib.GraphicsRuntime
 * @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 = {};
    }

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

    GameLib.Component.call(this);
};

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

/**
 *
 * @returns {boolean}
 */
GameLib.D3.Viewport.prototype.createInstance = function() {

    this.instance = new THREE.Vector4(
        this.x,
        this.y,
        this.width,
        this.height
    );

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

/**
 *
 */
GameLib.D3.Viewport.prototype.updateInstance = function(property) {

    if (
        property === 'x' ||
        property === 'y' ||
        property === 'width' ||
        property === 'height'
    ) {
        this.instance.x = this.x;
        this.instance.y = this.y;
        this.instance.z = this.width;
        this.instance.w = this.height;
    }

};

/**
 * 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,
        GameLib.Utils.IdOrNull(this.parentEntity)
    );

    return apiViewport;
};