/// <summary>
/// The default constructor for a collision between a bullet and an asteroid.
/// </summary>
/// <param name="elasticity">The elasticity that will be used for the collision.</param>
/// <param name="soundBank">A reference to the game's SoundBank.</param>
/// <param name="bullets">A reference to the list of bullets.</param>
/// <param name="asteroids">A reference to the list of asteroids.</param>
/// <param name="explosions">A reference to the list of explosions.</param>
public BulletAsteroidCollision(float elasticity, SoundBank soundBank, BulletList bullets, AsteroidList asteroids, ExplosionList explosions) : base(elasticity)
{
this.soundBank = soundBank;
this.bullets = bullets;
this.asteroids = asteroids;
this.explosions = explosions;
}
/// <summary>
/// Default constructor for a collision between the ship and an asteroid.
/// </summary>
/// <param name="soundBank">A reference to the game's SoundBank.</param>
/// <param name="explosions">A reference to the list of explosions.</param>
/// <param name="ship">A reference to the ship.</param>
/// <param name="asteroids">A reference to the list of asteroids.</param>
public ShipAsteroidCollision(SoundBank soundBank, ExplosionList explosions, Ship ship, AsteroidList asteroids)
: base()
{
this.soundBank = soundBank;
this.explosions = explosions;
this.ship = ship;
this.asteroids = asteroids;
}
/// <summary>
/// The default constructor for a list of bullets.
/// </summary>
/// <param name="maxBullets">The maximum number of bullets that can be active at any time.</param>
/// <param name="bulletSpeed">The speed that each bullet moves.</param>
/// <param name="radius">A radius that encloses the entire bullet model, centred at (0,0,0) in object space.</param>
/// <param name="hull">The convex hull segment that encloses the bullet.</param>
/// <param name="environment">A reference to the physics engine.</param>
/// <param name="model">The model used for the bullets.</param>
/// <param name="transforms">The graphical transforms that are applied to the bullet.</param>
/// <param name="soundBank">A reference to the SoundBank used for the game's sound effects.</param>
/// <param name="asteroids">A reference to the list of asteroids.</param>
/// <param name="explosions">A reference to the list of explosions.</param>
public BulletList(int maxBullets, float bulletSpeed, float radius, ConvexSegment hull,
PhysicsEngine.Environment environment, Model model, Matrix[] transforms,
SoundBank soundBank, AsteroidList asteroids, ExplosionList explosions)
{
this.bullets = new Bullet[maxBullets];
this.bulletVelocity = new Vector3(0, 0, (-1) * bulletSpeed);
this.bulletRadius = radius;
this.hulls = new ConvexHull[] { new ConvexHull(hull, Matrix.CreateScale(GameConstants.bulletScale)) };
this.physics = environment;
this.bulletModel = model;
this.bulletTransforms = transforms;
this.soundBank = soundBank;
this.asteroids = asteroids;
this.explosions = explosions;
}
/*************************************************************************************************************************/
protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);
// Load object models
Model asteroidModel = Content.Load <Model>(@"Models\asteroid1");
Model shipModel = Content.Load <Model>(@"Models\p1_wedge");
Model bulletModel = Content.Load <Model>(@"Models\pea_proj");
Model boundaryModel = Content.Load <Model>(@"Models\asteroid1");
Model explosionModel = Content.Load <Model>(@"Models\Particle");
// Set object graphical transforms
Matrix[] asteroidTransforms = CommonFunctions.SetupEffectDefaults(asteroidModel, camera);
Matrix[] shipTransforms = CommonFunctions.SetupEffectDefaults(shipModel, camera);
Matrix[] bulletTransforms = CommonFunctions.SetupEffectDefaults(bulletModel, camera);
Matrix[] boundaryTransforms = CommonFunctions.SetupEffectDefaults(boundaryModel, camera);
Matrix[] explosionTransforms = CommonFunctions.SetupEffectDefaults(explosionModel, camera);
// Load object hulls
ConvexSegment asteroidHull = PhysicsEngine.CommonFunctions.LoadConvexHull(
new System.IO.StreamReader(@"..\..\..\Content\Hulls\Asteroid1.hull"));
ConvexSegment shipHull = PhysicsEngine.CommonFunctions.LoadConvexHull(
new System.IO.StreamReader(@"..\..\..\Content\Hulls\Ship.hull"));
ConvexSegment bulletHull = PhysicsEngine.CommonFunctions.LoadConvexHull(
new System.IO.StreamReader(@"..\..\..\Content\Hulls\Projectile.hull"));
// Create all game elements
asteroids = new AsteroidList(GameConstants.numAsteroids, 70.0f, asteroidHull,
physics, asteroidModel, asteroidTransforms);
explosions = new ExplosionList(GameConstants.maxExplosions, physics, explosionModel, explosionTransforms);
bullets = new BulletList(GameConstants.maxBullets, GameConstants.bulletSpeed, 25.0f, bulletHull, physics, bulletModel,
bulletTransforms, soundBank, asteroids, explosions);
ship = new Ship(70.0f, shipHull, physics, shipModel, shipTransforms,
new Vector3(GameConstants.playfieldSizeX / 2, GameConstants.playfieldSizeY / 2, 0), 0, soundBank, explosions, asteroids);
// Prepare the perimeter
perimeter = new AsteroidPerimeter(boundaryModel, boundaryTransforms);
// Load the background texture
stars = Content.Load <Texture2D>("Textures/B1_stars");
// Load the font
lucidaConsole = Content.Load <SpriteFont>("Fonts/Lucida Console");
}
/// <summary>
/// The default constructor for a bullet.
/// </summary>
/// <param name="radius">A radius that encloses the entire bullet model, centred at (0,0,0) in object space.</param>
/// <param name="hulls">The convex hull segments that enclose the bullet.</param>
/// <param name="environment">A reference to the physics engine.</param>
/// <param name="model">The model used for the bullets.</param>
/// <param name="transforms">The graphical transforms that are applied to the bullet.</param>
/// <param name="initialPosition">The initial position of the bullet.</param>
/// <param name="initialVelocity">The initial velocity of the bullet.</param>
/// <param name="soundBank">A reference to the SoundBank used for the game's sound effects.</param>
/// <param name="bullets">A reference to the list of bullets.</param>
/// <param name="asteroids">A reference to the list of asteroids.</param>
/// <param name="explosions">A reference to the list of explosions.</param>
public Bullet(float radius, ConvexHull[] hulls, PhysicsEngine.Environment environment, Model model, Matrix[] transforms,
Vector3 initialPosition, Vector3 initialVelocity, SoundBank soundBank, BulletList bullets, AsteroidList asteroids, ExplosionList explosions)
{
physicsReference = new NonForceEntity(initialPosition, Vector3.Up, 25, radius, new Hull(hulls), new BulletAsteroidCollision(1.0f, soundBank, bullets, asteroids, explosions));
environment.Add(physicsReference);
this.bulletModel = model;
this.transforms = transforms;
physicsReference.Velocity = initialVelocity;
}
/// <summary>
/// The default constructor for the ship class.
/// </summary>
/// <param name="radius">An estimate to the radius that encloses the ship, measured from (0,0,0) in object space.</param>
/// <param name="hull">The convex hull for the ship model.</param>
/// <param name="environment">A reference to the physics engine.</param>
/// <param name="model">The model used to draw the ship.</param>
/// <param name="transforms">The graphics transforms to be applied to the model.</param>
/// <param name="initialPosition">The initial position of the ship.</param>
/// <param name="initialSpeed">The initial speed of the ship.</param>
/// <param name="soundBank">A reference to the game's SoundBank.</param>
/// <param name="explosions">A reference to the list of explosions.</param>
/// <param name="asteroids">A reference to the list of asteroids.</param>
public Ship(float radius, ConvexSegment hull, PhysicsEngine.Environment environment, Model model, Matrix[] transforms,
Vector3 initialPosition, float initialSpeed, SoundBank soundBank, ExplosionList explosions, AsteroidList asteroids)
{
ConvexHull[] hulls = new ConvexHull[] { new ConvexHull(hull, Matrix.CreateScale(GameConstants.shipScale)) };
physicsReference = new NonForceEntity(initialPosition, Vector3.Up, 25.0f, radius, new Hull(hulls),
new ShipAsteroidCollision(soundBank, explosions, this, asteroids));
environment.Add(physicsReference);
this.objectModel = model;
this.transforms = transforms;
// Set the initial speed of the object
physicsReference.Velocity = Vector3.UnitZ * initialSpeed;
this.soundBank = soundBank;
}