private void DrawBlocks(TetrisGameState state)
{
if (state.Grid.Width > _canvas.Width - 2 * _borderWidth || state.Grid.Height > _canvas.Height - 2 * _borderWidth)
{
throw new Exception(
$"Game grid ({state.Grid.Width}x{state.Grid.Height}) does not fit inside " +
$"Canvas ({_canvas.Width}x{_canvas.Height}) with Border size ({_borderWidth})");
}
var grid = state.Grid.Blocks;
if (state.ActiveBlock != null)
{
var block = state.ActiveBlock;
grid.Imprint(block.Shape, block.Position);
}
for (var y = 0; y < grid.GetLength(1); y++)
{
for (var x = 0; x < grid.GetLength(0); x++)
{
var type = grid[x, y];
if (type != 0)
{
var color = GetColor(type);
_canvas.SetPixel(x + _borderWidth, y + _borderWidth, color);
}
}
}
}
public void FillScreen()
{
_canvas.Clear();
var rows = _canvas.Height;
var cols = _canvas.Width;
for (var y = 0; y < rows; y++)
{
for (var x = 0; x < cols; x++)
{
var color = new Color(0, 0, 0);
if (x == 0 && y == 0)
{
color = new Color(255, 0, 0);
}
else if (x == 0 && y == rows - 1)
{
color = new Color(0, 255, 0);
}
else if (x == cols - 1 && y == 0)
{
color = new Color(0, 0, 255);
}
else if (x == cols - 1 && y == rows - 1)
{
color = new Color(255, 255, 255);
}
_canvas.SetPixel(x, y, color);
}
}
_matrix.SwapOnVsync(_canvas);
}
public void RenderDigit(int xOffset, int yOffset, int digit)
{
Debug.Assert(digit >= 0 && digit < 10, "Digit is not 0-9");
var lines = _digits[digit].Split('\n').Select(x => x.Trim()).Where(x => !string.IsNullOrEmpty(x)).ToArray();
Debug.Assert(lines.Length == DigitHeight && lines.All(x => x.Length == DigitWidth), $"One or more digit maps is not {DigitWidth}x{DigitHeight}");
for (var y = 0; y < lines.Length; y++)
{
var line = lines[y];
for (var x = 0; x < line.Length; x++)
{
if (line[x] == 'X')
{
_canvas.SetPixel(xOffset + x, yOffset + y, new Color(255, 255, 255));
}
}
}
}
bool Process(Image <Rgba32> currentImage)
{
lock (currentImage)
{
for (int y = 0; y < canvas.Height; y++)
{
Span <Rgba32> rowSpan = currentImage.GetPixelRowSpan(y);
for (int x = 0; x < canvas.Width; x++)
{
Rgba32 pixel = rowSpan[x];
canvas.SetPixel(x, y, new rpi_rgb_led_matrix_sharp.Color(pixel.R, pixel.G, pixel.B));
}
}
canvas = matrix.SwapOnVsync(canvas);
}
return(true);
}