private void BulletBorderCollisions( Bullet bullet )
{
Rectangle levelBorder = m_level.GetLevelRectangle();
Rectangle bulletSpriteBox = bullet.GeneralSpriteBox;
if (bulletSpriteBox.Left <= levelBorder.Left || bulletSpriteBox.Right >= levelBorder.Right ||
bulletSpriteBox.Top <= levelBorder.Top || bulletSpriteBox.Bottom >= levelBorder.Bottom)
bullet.Alive = false;
}
//Find the objects that are within the bullets partition space and intersecting the partition space
//Go through all these objects, if a collision is found then set the bullet to no longer be alive so it is removed from
//the ships list of alive bullets
private void BulletAsteroidCollisions(Bullet bullet)
{
List<LinkedList<Asteroid>> boundAsteroids = m_level.GetAsteroidPartitionTree().GetPartitionItems(bullet.GeneralSpriteBox);
if (boundAsteroids.Count > 0)
{
foreach (LinkedList<Asteroid> asteroids in boundAsteroids)
{
foreach (Asteroid asteroid in asteroids)
{
if (bullet.GeneralSpriteBox.Intersects(asteroid.GeneralSpriteBox))
bullet.Alive = false;
}
}
}
}
private void BulletPlayerCollision(Bullet bullet)
{
if (bullet.GeneralSpriteBox.Intersects(m_player.GeneralSpriteBox))
{
bullet.Alive = false;
//Currently Main is the temporary Screen handler that will handle
//Game over, Level restart etc... In the future we should use an actual screen handler
m_gameManager.GameOver();
}
}
private void BulletEnemyCollisions( Bullet bullet )
{
LinkedList<EnemyShip> enemyShips = m_level.GetEnemyShipList();
foreach (EnemyShip enemyShip in enemyShips)
{
if (bullet.GeneralSpriteBox.Intersects(enemyShip.GeneralSpriteBox) && bullet.Alive)
{
if (PixelIntersects(bullet, enemyShip))
{
bullet.Alive = false;
enemyShip.IsAlive = false;
}
}
}
}
