/// <summary>
/// Draw the current queue
/// </summary>
/// <param name="spriteBatch"></param>
private void DrawQueue(SpriteBatch spriteBatch)
{
const int blockSize = TetrisGame.BlockSize;
// Draw first shape in queue
BaseShape firstShape = ShapesQueue.Peek();
float scale = 0.85f;
Screen.Board.DrawShape(spriteBatch,
firstShape,
new Vector2(
Screen.Board.Bounds.Right - firstShape.Bounds.X * blockSize * scale + 21 + 60 - firstShape.Origin.X * scale,
TetrisGame.BoardPaddingTop - firstShape.Bounds.Y * blockSize * scale + 74 + 60 - firstShape.Origin.Y * scale),
scale);
// Draw the rest
const int queueAreaWidth = 47;
const int queueAreaHeight = 49;
float offsetY = 0f;
scale = 0.65f;
int i = 0;
foreach (var shape in ShapesQueue)
{
i++;
// Skip the first shape
if (i == 1)
{
continue;
}
Vector2 pos = new Vector2(
Screen.Board.Bounds.Right - shape.Bounds.X * blockSize * scale + 34 + queueAreaWidth - shape.Origin.X * scale,
TetrisGame.BoardPaddingTop + offsetY - shape.Bounds.Y * blockSize * scale + 236 + queueAreaHeight - shape.Origin.Y * scale);
Screen.Board.DrawShape(spriteBatch,
shape,
pos,
scale);
offsetY += queueAreaHeight * 2;
}
}
/// <summary>
/// Spawns the next shape in queue or use the provided `shape`.
/// </summary>
public void SpawnShape(BaseShape shape = null)
{
// Fill the queue if needed
while (ShapesQueue.Count < MaxShapesInQueue)
{
ShapesQueue.Enqueue(ShapesFactory.CreateShape(Screen.BlockTexture, Screen.Board, (ShapeTypes)_random.Next(7)));
}
if (shape == null)
{
shape = ShapesQueue.Dequeue();
}
shape.Position = new Vector2(3, 1);
Shape = shape;
if (ShapesQueue.Count < MaxShapesInQueue)
{
shape = ShapesFactory.CreateShape(Screen.BlockTexture, Screen.Board, (ShapeTypes)_random.Next(7));
ShapesQueue.Enqueue(shape);
}
}
