private void updateGamepad()
{
if (SnapsEngine.GetRightGamepad())
{
paddle.X = paddle.X + XPaddleSpeed;
}
if (SnapsEngine.GetLeftGamepad())
{
paddle.X = paddle.X - XPaddleSpeed;
}
if (SnapsEngine.GetFireGamepad())
{
paddle.CenterX = ball.CenterX;
}
if (paddle.Left < 0)
{
// Trying to move off the left edge - pull the pad back
paddle.Left = 0;
}
if (paddle.Right > SnapsEngine.GameViewportWidth)
{
// Trying to move off the right edge - pull the pad back
paddle.Right = SnapsEngine.GameViewportWidth;
}
// Handle collisions with the ball
if (paddle.IntersectsWith(ball))
{
if (YBallSpeed > 0)
{
// ball is going down, make it bounce off the bat
// and go up
YBallSpeed = -YBallSpeed;
// Make a noise
SnapsEngine.PlayGameSoundEffect("ding");
// increase the score
score = score + 1;
// move the paddle up the screen
paddle.Y = paddle.Y - 5;
}
}
}
public void StartProgram()
{
SnapsEngine.StartGameEngine(fullScreen: false, framesPerSecond: 60);
ImageSprite ball = new ImageSprite(imageURL: "ms-appx:///Images/ball.png");
SnapsEngine.AddSpriteToGame(ball);
double ballWidth = SnapsEngine.GameViewportWidth / 20.0;
ball.ScaleSpriteWidth(ballWidth);
double XBallSpeed = 10;
double YBallSpeed = 10;
ImageSprite paddle = new ImageSprite(imageURL: "ms-appx:///Images/paddle.png");
SnapsEngine.AddSpriteToGame(paddle);
double paddleWidth = SnapsEngine.GameViewportWidth / 10.0;
paddle.ScaleSpriteWidth(paddleWidth);
paddle.Bottom = SnapsEngine.GameViewportHeight - 10;
paddle.CenterX = SnapsEngine.GameViewportWidth / 2;
double XPaddleSpeed = 15;
while (true)
{
// update the ball position according to the speed
ball.X = ball.X + XBallSpeed;
ball.Y = ball.Y + YBallSpeed;
if (ball.Left < 0)
{
// ball is going off the left hand edge
if (XBallSpeed < 0)
{
// ball is moving to the left
// because the speed is negative
// make it "bounce" back into the viewport
// make the speed positive
XBallSpeed = -XBallSpeed;
}
}
if (ball.Right > SnapsEngine.GameViewportWidth)
{
// ball is going off the right hand edge
if (XBallSpeed > 0)
{
// ball is moving to the right
// because the speed is positive
// make it "bounce" back into the viewport
// make the speed negative
XBallSpeed = -XBallSpeed;
}
}
if (ball.Bottom > SnapsEngine.GameViewportHeight)
{
// ball is going off the bottom edge
if (YBallSpeed > 0)
{
// ball is moving down the screen
// because the speed is positive
// make it bounce back into the viewport
// make the speed negative
YBallSpeed = -YBallSpeed;
}
}
if (ball.Top < 0)
{
// ball is going off the top edge
if (YBallSpeed < 0)
{
// ball is up down the screen
// because the speed is negative
// make it bounce back into the viewport
// make the speed positive
YBallSpeed = -YBallSpeed;
}
}
// Now update the gamepad
if (SnapsEngine.GetRightGamepad())
{
paddle.X = paddle.X + XPaddleSpeed;
}
if (SnapsEngine.GetLeftGamepad())
{
paddle.X = paddle.X - XPaddleSpeed;
}
if (paddle.Left < 0)
{
// Trying to move off the left edge - pull the pad back
paddle.Left = 0;
}
if (paddle.Right > SnapsEngine.GameViewportWidth)
{
// Trying to move off the right edge - pull the pad back
paddle.Right = SnapsEngine.GameViewportWidth;
}
// Handle collisions with the ball
if (paddle.IntersectsWith(ball))
{
if (YBallSpeed > 0)
{
// ball is going down, make it bounce off the bat
// and go up
YBallSpeed = -YBallSpeed;
}
}
SnapsEngine.DrawGamePage();
}
}
