/// <summary>
/// The default constructor for an explosion.
/// </summary>
/// <param name="physics">A reference to the physics engine.</param>
/// <param name="explosionModel">The model to use for a particle in the explosion.</param>
/// <param name="explosionTransforms">The graphical transforms to apply to the model.</param>
/// <param name="explosionPosition">The position of the explosion.</param>
public Explosion(PhysicsEngine.Environment physics, Model explosionModel,
Matrix[] explosionTransforms, Vector3 explosionPosition)
{
this.objectModel = explosionModel;
this.transforms = explosionTransforms;
// Set up the particle parameters based on game constants
ParticleSystemParameters psp = new ParticleSystemParameters();
psp.BirthTime = GameConstants.particleBirthTime;
psp.BirthTimeVariance = 0;
psp.Colour = GameConstants.explosionColour;
psp.ColourVariance = GameConstants.colourVariance;
psp.Direction = GameConstants.particleBaseDirection;
psp.DirectionVariance = GameConstants.particleDirectionVariance;
psp.InitialParticles = GameConstants.initialNumParticles;
psp.LifeTime = GameConstants.particleLifeTime;
psp.LifeTimeVariance = GameConstants.particleLifeTimeVariance;
psp.Mass = 1;
psp.MassVariance = 0.1f;
psp.MaxParticles = GameConstants.explosionNumParticles;
psp.Position = explosionPosition;
psp.Speed = GameConstants.explosionParticleSpeed;
psp.SpeedVariance = 0;
// Create the particle system and add it to the physics engine.
this.physicsReference = new ParticleSystem(psp);
physics.Add(physicsReference);
}
public GameObject(float radius, ConvexSegment hull, PhysicsEngine.Environment environment, Model model, Matrix[] transforms)
{
ConvexHull[] hulls = new ConvexHull[] { new ConvexHull(hull, Matrix.Identity) };
physicsReference = new GameEntity(radius, new Hull(hulls), environment);
environment.Add(physicsReference);
this.objectModel = model;
this.transforms = transforms;
}
/// <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>
/// Constructs a new ball.
/// </summary>
/// <param name="initialPosition">The initial position of the ball.</param>
/// <param name="initialOrientation">The initial orientation of the ball.</param>
/// <param name="mass">The mass of the ball.</param>
/// <param name="ballRadius">The radius of the ball.</param>
/// <param name="ballHull">The ball's hull.</param>
/// <param name="collisionHandler">The ball's collision handler.</param>
/// <param name="physics">The physics engine environment to which the ball belongs.</param>
/// <param name="airResistance">The air resistance of the ball.</param>
/// <param name="number">The ball's number.</param>
/// <param name="ballModel">The ball's model.</param>
public Ball(Vector3 initialPosition, Vector3 initialOrientation, float mass, float ballRadius, Hull ballHull,
CollisionHandler collisionHandler, PhysicsEngine.Environment physics, float airResistance, int number, Model ballModel)
{
physicsReference = new BallEntity(initialPosition, initialOrientation, mass, ballRadius, ballHull,
collisionHandler, physics, airResistance);
physics.Add(physicsReference);
this.number = number;
this.ballModel = ballModel;
}
/// <summary>
/// The default constructor for an asteroid.
/// </summary>
/// <param name="radius">A radius that encloses the entire asteroid model, centred at (0,0,0) in object space.</param>
/// <param name="hulls">The convex hull segments that enclose the asteroid.</param>
/// <param name="environment">A reference to the physics engine.</param>
/// <param name="model">The model used for the asteroids.</param>
/// <param name="transforms">The graphical transforms that are applied to the asteroid.</param>
/// <param name="initialPosition">The initial position of the asteroid.</param>
/// <param name="initialVelocity">The initial velocity of the asteroid.</param>
public Asteroid(float radius, ConvexHull[] hulls, PhysicsEngine.Environment environment, Model model, Matrix[] transforms,
Vector3 initialPosition, Vector3 initialVelocity)
{
physicsReference = new DefaultEntity(initialPosition, new Vector3(CommonFunctions.GenerateRandom(-1, 1),
CommonFunctions.GenerateRandom(-1, 1),
CommonFunctions.GenerateRandom(-1, 1)),
40, radius, new Hull(hulls), new ElasticCollision(GameConstants.elasticityFactor),
environment, 0.0f);
environment.Add(physicsReference);
this.objectModel = model;
this.transforms = transforms;
physicsReference.Position = initialPosition;
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;
}
/// <summary>
/// Constructs a new room.
/// </summary>
/// <param name="camera">The camera to be used to draw the room.</param>
/// <param name="Content">The content manager to load models from.</param>
/// <param name="physics">The physics environment to which the room belogns.</param>
public Room(Camera camera, ContentManager Content, PhysicsEngine.Environment physics)
{
wallModel = Content.Load <Model>("Models\\Wall");
wallGraphicsTransforms = CommonFunctions.SetupEffectDefaults(wallModel, camera);
ConvexSegment wallSegment
= PhysicsEngine.CommonFunctions.LoadConvexHull(new System.IO.StreamReader(@"..\..\..\Content/Hulls/Wall.hull"));
wallHull = new ConvexHull[] { new ConvexHull(wallSegment, Matrix.Identity) };
// Create wall entities
leftWall = CreateWallEntity(-Vector3.UnitX, -MathHelper.PiOver2 * Vector3.UnitZ);
rightWall = CreateWallEntity(Vector3.UnitX, +MathHelper.PiOver2 * Vector3.UnitZ);
bottomWall = CreateWallEntity(-Vector3.UnitY, 0.0f * Vector3.UnitX);
topWall = CreateWallEntity(Vector3.UnitY, MathHelper.Pi * Vector3.UnitX);
backWall = CreateWallEntity(-Vector3.UnitZ, +MathHelper.PiOver2 * Vector3.UnitX);
frontWall = CreateWallEntity(Vector3.UnitZ, -MathHelper.PiOver2 * Vector3.UnitX);
physics.Add(new Entity[] { leftWall, rightWall, bottomWall, topWall, backWall, frontWall });
}
