//pre: clsSprite object initialized and in use
//post: returns true if a collision is detected
public bool Collides(clsSprite otherSprite)
{
return(this.position.X + this.size.X >= otherSprite.position.X &&
this.position.X <= otherSprite.position.X + otherSprite.size.X &&
this.position.Y + this.size.Y >= otherSprite.position.Y &&
this.position.Y <= otherSprite.position.Y + otherSprite.size.Y); /* These lines of code denote a collision detection using a cartesian coord. system. returns true if detected */
}
//pre: clsSprite object(s) initialized and in use
//post: AI for npc sprite. Chase down the otherSprite
public void ChaseBallSprite(clsSprite otherSprite)
{
if (this.position.Y < otherSprite.position.Y)
{
velocity = new Vector2(0, cpuChaseSpeed);
}
if (this.position.Y > otherSprite.position.Y)
{
velocity = new Vector2(0, -cpuChaseSpeed);
}
position += velocity;
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);
// TODO: use this.Content to load your game content here
gameFont = Content.Load <SpriteFont>("SpriteFont1");
//Load backgrounds
mControllerDetectScreenBakcground = Content.Load <Texture2D>("ControllerDetectScreen");
mTitleScreenBackground = Content.Load <Texture2D>("TitleScreen");
mPauseMenu = Content.Load <Texture2D>("paused");
//Initialize the current screen state to the screen we want to display first
mCurrentScreen = ScreenState.ControllerDetect;
//Load Menu
//main.LoadContent(Content);
// Load (2) 2D texture sprites <ball.png>
mySpriteBall = new clsSprite(Content.Load <Texture2D>("ball32"),
new Vector2(screenWidth - 72f, 0f), new Vector2(32f, 32f),
screenWidth, screenHeight); // (0,0) is top left of screen, (64, 64) is size of sprite
playerPaddle = new clsSprite(Content.Load <Texture2D>("pong_paddle"), /* (218,118) represents the top right of screen, 64^2 is size */
new Vector2(40f, 118f), new Vector2(10f, 64f),
screenWidth, screenHeight);
enemyPaddle = new clsSprite(Content.Load <Texture2D>("pong_paddle"),
new Vector2(screenWidth - 40f, 118f), new Vector2(10f, 64f),
screenWidth, screenHeight);
// Load Sound Effect Resource
soundEffect = Content.Load <SoundEffect>("LASER");
movingSoundEffect = Content.Load <SoundEffect>("LASER");
audioEngine = new AudioEngine("Content\\Lab3Sounds.xgs");
waveBank = new WaveBank(audioEngine, "Content\\Wave Bank.xwb");
soundBank = new SoundBank(audioEngine, "Content\\Sound Bank.xsb");
streamingWaveBank = new WaveBank(audioEngine, "Content\\Music.xwb");
audioEngine.Update();
// musicCue = soundBank.GetCue("Galactic_Damages");
// musicCue.Play();
mySpriteBall.velocity = new Vector2(-5, 5); /* setting initial x and y velocity (values arbitrary) */
}
//Pre: A collision has occured on the left hand side of the screen.
//Post: The velocity of the pong is adjusted based on where it hit the CPU paddle
private void lhsCPUCollision(clsSprite lhs, clsSprite rhs)
{
GamePad.SetVibration(PlayerIndex.One, 1.0f, 1.0f);
lhs.position.X += 1; // prevents sprites getting stuck together
if ((lhs.position.Y + lhs.halfSizeY) > (rhs.position.Y + rhs.halfSizeY))
{
lhs.velocity = new Vector2(gameVelocity, gameVelocity);
}
if ((lhs.position.Y + lhs.halfSizeY) <= (rhs.position.Y + rhs.halfSizeY))
{
lhs.velocity = new Vector2(gameVelocity, -gameVelocity);
}
}
//Pre: A collision has occured between the pongBall and the left hand side player sprite
//Post: modifies the velocity and direction based on player movements (if player isn't moving, position determines trajectory)
private void lhsPlayerCollision(clsSprite lhs, clsSprite rhs)
{
GamePad.SetVibration(PlayerIndex.One, 1.0f, 1.0f);
KeyboardState keyboardState = Keyboard.GetState();
lhs.position.X += 1; // This helps prevent sticking collision (ball direction ->)
if (keyboardState.IsKeyDown(Keys.Up) || ((lhs.position.Y + lhs.halfSizeY) < (rhs.position.Y + rhs.halfSizeY))) // if we are moving up, so will the ball
{
lhs.velocity = new Vector2(gameVelocity, -gameVelocity);
}
if (keyboardState.IsKeyDown(Keys.Down) || ((lhs.position.Y + lhs.halfSizeY) > (rhs.position.Y + rhs.halfSizeY))) // if we are moving down, so will the ball
{
lhs.velocity = new Vector2(gameVelocity, gameVelocity);
}
}
// Pre: Game has started and sprites are in motion.
// Post: Method runs recursively in the update method. Sprite follows mouse Y position.
private void mouseControls(clsSprite playerSprite)
{
if (playerPaddle.position.X < Mouse.GetState().X)
{
playerPaddle.position += new Vector2(0, 0);
}
if (playerPaddle.position.X > Mouse.GetState().X)
{
playerPaddle.position += new Vector2(0, 0);
}
if (playerPaddle.position.Y < Mouse.GetState().Y)
{
playerPaddle.position += new Vector2(0, gameVelocity); // No x direction movement allowed
}
if (playerPaddle.position.Y > Mouse.GetState().Y)
{
playerPaddle.position += new Vector2(0, -gameVelocity); // No X direction movement allowed
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Methods for Game1. Must be Private!!
// Pre: Game has started.
// Post: The method runs recursively as a part of the update method. Player alters Sprite Velocity
private void keyBoardControls(clsSprite playerSprite)
{
KeyboardState keyboardState = Keyboard.GetState();
if (keyboardState.IsKeyDown(Keys.Up))
{
playerSprite.position += new Vector2(0, -gameVelocity);
}
if (keyboardState.IsKeyDown(Keys.Down))
{
playerSprite.position += new Vector2(0, gameVelocity);
}
if (keyboardState.IsKeyDown(Keys.Left))
{
playerSprite.position += new Vector2(0, 0); // No x movement in pong
}
if (keyboardState.IsKeyDown(Keys.Right))
{
playerSprite.position += new Vector2(0, 0); // No x movement in pong
}
}
//pre: clsSprite object(s) initialized and in use
//post: returns true if circular sprite collision is detected
public bool CircleCollides(clsSprite otherSprite)
{
// Check if two circle sprites collided
return(Vector2.Distance(this.center, otherSprite.center) <= this.radius + otherSprite.radius);
}