var game = new Phaser.Game(800, 600, Phaser.AUTO, 'phaser-example', { preload: preload, create: create, update: update });

function preload() {

    game.load.image('ball', 'assets/sprites/pangball.png');

}

var ball;
var texture;

function create() {

	//	Here we'll create a renderTexture the same size as our game
	texture = game.add.renderTexture('mousetrail', 800, 600);

	//	This is the sprite that will be drawn to the texture, we set it to visible false as we only need its texture data
	ball = game.add.sprite(0, 0, 'ball');
	ball.visible = false;
	ball.anchor.setTo(0.5, 0.5);

	//	This is the sprite that is drawn to the display. We've given it the renderTexture as its texture.
	game.add.sprite(0, 0, texture);

}

function update() {

	if (!game.input.activePointer.position.isZero())
	{
		//	This time we'll draw the ball sprite twice, in a mirror effect
		texture.renderXY(ball, game.input.activePointer.x, game.input.activePointer.y, false, true);
		texture.renderXY(ball, game.input.activePointer.x, 600 - game.input.activePointer.y, false, true);
	}

}