public Game1()
{
graphics = new GraphicsDeviceManager (this);
Content.RootDirectory = "Assets";
graphics.IsFullScreen = true;
gameObjects = new GameObjects ();
gameObjects.ScreenSize = new Rectangle (
0, 0,
GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Width,
GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Height
);
randomGenerator = new Random ();
asteroidCount = 12;
score = 0;
}
public void Update(GameObjects gameObjects)
{
// Update Shuttle
KeyboardState currentState = Keyboard.GetState();
if(Active)
{
AngularVelocity = currentState.IsKeyDown( Keys.A ) ? -turnSpeed
: currentState.IsKeyDown( Keys.D ) ? turnSpeed
: 0f;
Angle += AngularVelocity;
Vector2 modelVelocityAdd = Vector2.Zero;
modelVelocityAdd.X = (float) Math.Sin( Angle );
modelVelocityAdd.Y = -(float) Math.Cos( Angle );
modelVelocityAdd *= currentState.IsKeyDown( Keys.W ) ? thrust : 0f;
Velocity += modelVelocityAdd;
Location += Velocity;
if (EdgeWrap)
WrapEdgeLocation( gameObjects.ScreenSize );
}
// Update Engine
EnginePosition = new Vector2 (
Location.X - (float)Math.Cos(Angle - Math.PI/2) * Height / 2 * Scale.X,
Location.Y - (float)Math.Sin(Angle - Math.PI/2) * Height / 2 * Scale.Y
);
particleEngine.EmitterLocation = EnginePosition;
particleEngine.Update();
// Update Lasers
GunPosition = new Vector2 (
Location.X + (float)Math.Cos(Angle - Math.PI/2) * Height / 2 * Scale.X,
Location.Y + (float)Math.Sin(Angle - Math.PI/2) * Height / 2 * Scale.Y
);
TimeToFire--;
TimeToFire = MathHelper.Clamp( TimeToFire, 0, 30 );
if (Active && currentState.IsKeyDown( Keys.Space ) && TimeToFire == 0)
{
var newLaser = new Laser (laserTexture);
newLaser.Location = GunPosition;
newLaser.Angle = Angle;
newLaser.Velocity = new Vector2((float)Math.Cos(Angle - Math.PI/2),(float)Math.Sin(Angle - Math.PI/2)) * 30f;
newLaser.Scale = Scale;
gameObjects.Lasers.Add( newLaser );
TimeToFire = 20;
LaserFire.Play();
}
}
public void Update(GameObjects gameObjects)
{
base.Update(gameObjects.ScreenSize);
}