public void Drop(int dropUntil)
{
dropUntilY = dropUntil;
if (state == FireBallState.Normal)
{
state = FireBallState.Falling;
}
}
public FireBall(
Vector2 position,
Vector2 size,
float directionAngle,
float lifeTimeMilliseconds,
IMapObject target,
Animation movingAnimation, Animation blowingAnimation, ISound blowSound) : base(position, size, directionAngle)
{
this.lifeTimeMilliseconds = lifeTimeMilliseconds;
Target = target;
this.movingAnimation = movingAnimation;
this.blowingAnimation = blowingAnimation;
this.blowSound = blowSound;
state = FireBallState.PlayerFollowing;
}
private void Update(float deltaT, ref Particle particle)
{
if (state == FireBallState.Normal)
{
MouseState mouse = Mouse.GetState();
Emitter = new Vector2(mouse.X, mouse.Y);
}
if (state == FireBallState.Falling)
{
float y = Emitter.Y;
y += deltaT * fallSpeed;
fallSpeed += deltaT * fallAcceleration;
Emitter = new Vector2(Emitter.X, y);
// Check for collision with floor/bottom of screen.
if (Emitter.Y >= dropUntilY)
{
// Initialize explode state.
state = FireBallState.Explode;
explosionLife = 20.0f;
}
}
particle.Velocity += deltaT * particle.Acceleration;
particle.Position += deltaT * particle.Velocity;
if (!(state == FireBallState.Explode))
{
particle.Scale -= deltaT;
particle.Life -= deltaT;
}
if (state == FireBallState.Explode)
{
explosionLife -= deltaT;
if (explosionLife <= 0.0f)
{
state = FireBallState.Normal;
explosionLife = 4.0f;
}
}
}
private void DoBlow()
{
blowSound.Play(0);
state = FireBallState.Blowing;
}
