public override void Update(float dt)
{
base.Update(dt);
//update puck
CCPoint ballNextPosition = _ball.NextPosition;
CCPoint ballVector = _ball.Vector;
ballVector = CCPointExHelper.ccpMult(ballVector, 0.98f);
ballNextPosition.X += ballVector.X;
ballNextPosition.Y += ballVector.Y;
//test for puck and mallet collision
float squared_radii = (float)Math.Pow(_player1.radius + _ball.radius, 2);
GameSprite player;
CCPoint playerNextPosition;
CCPoint playerVector;
for (int p = 0; p < _players.Length; p++)
{
//if (p == 0)
// continue;
player = _players[p];
playerNextPosition = player.NextPosition;
playerVector = player.Vector;
float diffx = ballNextPosition.X - player.PositionX;
float diffy = ballNextPosition.Y - player.PositionY;
float distance1 = CCMathExHelper.pow(diffx, 2) + CCMathExHelper.pow(diffy, 2);
float distance2 = CCMathExHelper.pow(_ball.PositionX - playerNextPosition.X, 2) +
CCMathExHelper.pow(_ball.PositionY - playerNextPosition.Y, 2);
if (distance1 <= squared_radii || distance2 <= squared_radii)
{
float mag_ball = CCMathExHelper.pow(ballVector.X, 2) + CCMathExHelper.pow(ballVector.Y, 2);
float mag_player = CCMathExHelper.pow(playerVector.X, 2) + CCMathExHelper.pow(playerVector.Y, 2);
float force = CCMathExHelper.sqrt(mag_ball + mag_player);
float angle = CCMathExHelper.atan2(diffy, diffx);
ballVector.X = force * CCMathExHelper.cos(angle);
ballVector.Y = (force * CCMathExHelper.sin(angle));
ballNextPosition.X = playerNextPosition.X + (player.radius + _ball.radius + force) * CCMathExHelper.cos(angle);
ballNextPosition.Y = playerNextPosition.Y + (player.radius + _ball.radius + force) * CCMathExHelper.sin(angle);
PlayHit(); //CCSimpleAudioEngine.SharedEngine.PlayEffect("hit");
}
}
////check collision of ball and sides
if (ballNextPosition.X < _ball.radius)
{
ballNextPosition.X = _ball.radius;
ballVector.X *= -0.8f;
PlayHit(); //CCSimpleAudioEngine.SharedEngine.PlayEffect("hit");
}
if (ballNextPosition.X > _screenSize.Width - _ball.radius)
{
ballNextPosition.X = _screenSize.Width - _ball.radius;
ballVector.X *= -0.8f;
PlayHit();
//CCSimpleAudioEngine.SharedEngine.PlayEffect("hit");
}
//ball and top of the court
if (ballNextPosition.Y > _screenSize.Height - _ball.radius)
{
if (_ball.PositionX < _screenSize.Width * 0.5f - GOAL_WIDTH * 0.5f ||
_ball.PositionX > _screenSize.Width * 0.5f + GOAL_WIDTH * 0.5f)
{
ballNextPosition.Y = _screenSize.Height - _ball.radius;
ballVector.Y *= -0.8f;
PlayHit();
//CCSimpleAudioEngine.SharedEngine.PlayEffect("hit");
}
}
//ball and bottom of the court
if (ballNextPosition.Y < _ball.radius)
{
if (_ball.PositionX < _screenSize.Width * 0.5f - GOAL_WIDTH * 0.5f ||
_ball.PositionX > _screenSize.Width * 0.5f + GOAL_WIDTH * 0.5f)
{
ballNextPosition.Y = _ball.radius;
ballVector.Y *= -0.8f;
PlayHit();
}
}
////finally, after all checks, update ball's vector and next position
_ball.Vector = ballVector;
_ball.NextPosition = ballNextPosition;
////check for goals!
if (ballNextPosition.Y < -_ball.radius * 2)
{
playerScore(2);
}
//}
if (ballNextPosition.Y > _screenSize.Height + _ball.radius * 2)
{
playerScore(1);
}
////move pieces to next position
_player1.Position = _player1.NextPosition; // ->setPosition(_player1->getNextPosition());
_player2.Position = _player2.NextPosition; //->setPosition(_player2->getNextPosition());
_ball.Position = _ball.NextPosition; //->setPosition(_ball->getNextPosition());
}
public override void Update(float dt)
{
base.Update(dt);
if (!_running)
{
return;
}
int count;
int i;
CCSprite sprite;
//update timers
_meteorTimer += dt;
if (_meteorTimer > _meteorInterval)
{
_meteorTimer = 0;
resetMeteor();
}
_healthTimer += dt;
if (_healthTimer > _healthInterval)
{
_healthTimer = 0;
resetHealth();
}
_difficultyTimer += dt;
if (_difficultyTimer > _difficultyInterval)
{
_difficultyTimer = 0;
increaseDifficulty();
}
if (_bomb.Visible)
{
if (_bomb.ScaleX > 0.3f)
{
if (_bomb.Opacity != 255)
{
_bomb.Opacity = 255;
}
}
}
//check collision with shockwave
if (_shockWave.Visible)
{
count = _fallingObjects.Count;
float diffx;
float diffy;
for (i = count - 1; i >= 0; i--)
{
sprite = (CCSprite)_fallingObjects[i];
diffx = _shockWave.PositionX - sprite.PositionX;
diffy = _shockWave.PositionY - sprite.PositionY;
if (CCMathExHelper.pow(diffx, 2) + CCMathExHelper.pow(diffy, 2) <= CCMathExHelper.pow(_shockWave.BoundingBox.Size.Width * 0.5f, 2))
{
sprite.StopAllActions();
sprite.RunAction(_explosion);
CCSimpleAudioEngine.SharedEngine.PlayEffect("music/boom");
if (sprite.Tag == kSpriteMeteor)
{
_shockwaveHits++;
_score += _shockwaveHits * 13 + _shockwaveHits * 2;
}
//play sound
_fallingObjects.RemoveAt(i);
}
}
_scoreDisplay.Text = String.Format("{0}", _score);
}
//move clouds
count = _clouds.Count;
for (i = 0; i < count; i++)
{
sprite = _clouds[i];
sprite.PositionX = sprite.PositionX + dt * 20;
if (sprite.PositionX > _screenSize.Width + sprite.BoundingBox.Size.Width * 0.5f)
{
sprite.PositionX = -sprite.BoundingBox.Size.Width * 0.5f;
}
}
}
