/// <summary>
/// Calculate the physics for the ship.
/// This includes the ship's position, rotation, physics, particles,
/// and projectiles.
/// </summary>
/// <param name="width">Game board width</param>
/// <param name="height">Game board height</param>
public void CalculatePhysics(int width, int height)
{
CalculateProjectiles(width, height);
CalculatePosition(width, height);
CalculateRotation();
ResetPhysics();
shipStream.CalculateParticles(DELTA_SHIP_STREAM);
}
/// <summary>
/// Determines physics for projectiles and its particles for the frame.
/// Projectile is removed if it travels off screen.
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
private void CalculateProjectiles(int width, int height)
{
projectileStream.CalculateParticles(DELTA_PROJECTILE_STREAM);
// determine projectiles
for (int i = 0; i < projectiles.Count; i++)
{
// projectile[i][0] = X position of projectile, [1] = Y position of projectile, [2] = rotation of projectile
projectiles[i][0] += projectiles[i][4];
projectiles[i][1] += projectiles[i][5];
projectileStream.AddParticles(projectiles[i][0], projectiles[i][1], 0, 0, 3, 1, 2, 1);
projectileStream.AddParticles(projectiles[i][0], projectiles[i][1], 0, 0, 3, 1, 2, 3);
projectileStream.AddParticles(projectiles[i][0], projectiles[i][1], 0, 0, 3, 1, 1, 5);
if ((projectiles[i][0] < 0) || (projectiles[i][0] > width) || (projectiles[i][1] < 0) || (projectiles[i][1] > height))
{
projectiles.RemoveAt(i);
}
}
}
