private void FruitVsBorders(Fruit fruit)
{
if(fruit.PositionX - fruit.Radius < 0 && fruit.Velocity.X < 0)
{
fruit.Velocity.X *= -1 * GameCoefficients.FruitCollisionElasticity;
CCAudioEngine.SharedEngine.PlayEffect("FruitEdgeBounce");
}
if(fruit.PositionX + fruit.Radius > gameplayLayer.ContentSize.Width && fruit.Velocity.X > 0)
{
fruit.Velocity.X *= -1 * GameCoefficients.FruitCollisionElasticity;
CCAudioEngine.SharedEngine.PlayEffect("FruitEdgeBounce");
}
if (fruit.PositionY + fruit.Radius > gameplayLayer.ContentSize.Height && fruit.Velocity.Y > 0)
{
fruit.Velocity.Y *= -1 * GameCoefficients.FruitCollisionElasticity;
CCAudioEngine.SharedEngine.PlayEffect("FruitEdgeBounce");
}
}
// made public for debugging, may make it private later:
private void Spawn()
{
var fruit = new Fruit ();
if(Layer == null)
{
throw new InvalidOperationException("Need to set Layer before spawning");
}
fruit.PositionX = CCRandom.GetRandomFloat(0 + fruit.Radius, Layer.ContentSize.Width - fruit.Radius);
fruit.PositionY = Layer.ContentSize.Height + fruit.Radius;
if(CCRandom.Float_0_1() > .5f)
{
fruit.FruitColor = FruitColor.Red;
}
else
{
fruit.FruitColor = FruitColor.Yellow;
}
if(FruitSpawned != null)
{
FruitSpawned(fruit);
}
}
private static bool FruitPolygonCollision(Fruit fruit, Polygon polygon, CCPoint polygonVelocity)
{
// Test whether the fruit collides
bool didCollide = polygon.CollideAgainst(fruit.Collision);
if (didCollide)
{
var circle = fruit.Collision;
// Get the separation vector to reposition the fruit so it doesn't overlap the polygon
var separation = CollisionResponse.GetSeparationVector(circle, polygon);
fruit.Position += separation;
// Adjust the fruit's Velocity to make it bounce:
var normal = separation;
normal.Normalize();
fruit.Velocity = CollisionResponse.ApplyBounce(
fruit.Velocity,
polygonVelocity,
normal,
GameCoefficients.FruitCollisionElasticity);
}
return didCollide;
}
private void Destroy(Fruit fruit)
{
fruit.RemoveFromParent();
fruitList.Remove(fruit);
}
private void FruitVsBins(Fruit fruit)
{
foreach(var bin in fruitBins)
{
if(bin.Polygon.CollideAgainst(fruit.Collision))
{
if(bin.FruitColor == fruit.FruitColor)
{
// award points:
score += 1 + fruit.ExtraPointValue;
scoreText.Score = score;
Destroy(fruit);
CCAudioEngine.SharedEngine.PlayEffect("FruitInBin");
}
else
{
EndGame();
CCAudioEngine.SharedEngine.PlayEffect("GameOver");
}
break;
}
}
}
private void FruitVsPaddle(Fruit fruit)
{
bool didCollideWithPaddle = FruitPolygonCollision(fruit, paddle.Polygon, paddle.Velocity);
if (didCollideWithPaddle)
{
bool didAddPoint = fruit.TryAddExtraPointValue();
if(didAddPoint)
{
CCAudioEngine.SharedEngine.PlayEffect("FruitPaddleBounce");
}
}
}
private void HandleFruitAdded(Fruit fruit)
{
fruitList.Add (fruit);
gameplayLayer.AddChild (fruit);
}