/// <summary>
/// Generates an offset vector and force vector for a Particle when it is released.
/// </summary>
/// <param name="offset">The offset of the Particle from the trigger location.</param>
/// <param name="force">A unit vector defining the initial force of the Particle.</param>
protected override void GenerateOffsetAndForce(out Vector2 offset, out Vector2 force)
{
#if XBOX
offset = new Vector2();
#endif
if (this.Frame)
{
if (RandomHelper.NextBool())
{
offset.X = RandomHelper.ChooseOne(-this.HalfWidth, this.HalfWidth);
offset.Y = RandomHelper.NextFloat(-this.HalfHeight, this.HalfHeight);
}
else
{
offset.X = RandomHelper.NextFloat(-this.HalfWidth, this.HalfWidth);
offset.Y = RandomHelper.ChooseOne(-this.HalfHeight, this.HalfHeight);
}
}
else
{
offset.X = RandomHelper.NextFloat(-this.HalfWidth, this.HalfWidth);
offset.Y = RandomHelper.NextFloat(-this.HalfHeight, this.HalfHeight);
}
// Apply the Emitter rotation to the offset vector...
Vector2 unrotatedOffset = offset;
offset.X = ((unrotatedOffset.X * this.AngleCos) + (unrotatedOffset.Y * -this.AngleSin));
offset.Y = ((unrotatedOffset.X * this.AngleSin) + (unrotatedOffset.Y * this.AngleCos));
force = RandomHelper.NextUnitVector();
}
/// <summary>
/// Generates an offset vector and force vector for a Particle when it is released.
/// </summary>
/// <param name="offset">The offset of the Particle from the trigger location.</param>
/// <param name="force">A unit vector defining the initial force of the Particle.</param>
protected override void GenerateOffsetAndForce(out Vector2 offset, out Vector2 force)
{
force = RandomHelper.NextUnitVector();
offset = RandomHelper.ChooseOne(this.MaskHits);
offset.X *= this.Width;
offset.Y *= this.Height;
}
private void AddNewPiece()
{
Active = CreatePiece(Next);
Next = RandomHelper.ChooseOne(Tetromino.All);
if (TouchesFloorPile(Active))
{
// Game Over
State = GameState.GameOver;
SendEvent(TetrisEvents.GameOver);
}
else
{
SendEvent(TetrisEvents.NewPiece);
}
}
public bool SendInput(Input keyPress)
{
if (State == GameState.InProgress)
{
if (Active != null)
{
if (keyPress == Input.MoveRight)
{
if (Active.GetBricks().All(a => a.X < Width - 1) && // wall
!Collision(floor.ForEach().ToArray(), Active.GetBricks(Active.Position.AddX(1), Active.Rotation).ToArray())
)
{
Active.Position = Active.Position.AddX(1);
return(true);
}
return(false);
}
else if (keyPress == Input.MoveLeft)
{
if (Active.GetBricks().All(a => a.X > 0) &&
!Collision(floor.ForEach().ToArray(), Active.GetBricks(Active.Position.AddX(-1), Active.Rotation).ToArray())
)
{
Active.Position = Active.Position.AddX(-1);
return(true);
}
return(false);
}
else if (keyPress == Input.Rotate)
{
if (Active.GetBricks(Active.Rotation + 1).All(a => a.X >= 0 && a.X < Width))
{
Active.Rotation++;
return(true);
}
return(false);
}
else if (keyPress == Input.Drop)
{
while (!TouchesFloorPile(Active))
{
Active.Position = Active.Position.AddY(1);
}
return(true);
}
}
if (keyPress == Input.Quit)
{
SetMessage("Quitting... Bye Bye!");
State = GameState.GameOver;
return(true);
}
}
else if (State == GameState.WaitingStart && keyPress == Input.Start)
{
SetMessage("Good Luck...");
State = GameState.InProgress;
Next = RandomHelper.ChooseOne(Tetromino.All);
Active = CreatePiece(Next);
Next = RandomHelper.ChooseOne(Tetromino.All);
return(true);
}
return(true);
}