64 lines
1.9 KiB
C#
64 lines
1.9 KiB
C#
using SixLabors.ImageSharp;
|
|
using SixLabors.ImageSharp.PixelFormats;
|
|
using TanksServer.Helpers;
|
|
using TanksServer.ServicePointDisplay;
|
|
using TanksServer.Services;
|
|
|
|
namespace TanksServer.DrawSteps;
|
|
|
|
internal sealed class TankDrawer : IDrawStep
|
|
{
|
|
private readonly TankManager _tanks;
|
|
private readonly bool[] _tankSprite;
|
|
private readonly int _tankSpriteWidth;
|
|
|
|
public TankDrawer(TankManager tanks)
|
|
{
|
|
_tanks = tanks;
|
|
|
|
using var tankImage = Image.Load<Rgba32>("assets/tank.png");
|
|
_tankSprite = new bool[tankImage.Height * tankImage.Width];
|
|
|
|
var whitePixel = new Rgba32(byte.MaxValue, byte.MaxValue, byte.MaxValue, byte.MaxValue);
|
|
var i = 0;
|
|
for (var y = 0; y < tankImage.Height; y++)
|
|
for (var x = 0; x < tankImage.Width; x++, i++)
|
|
{
|
|
_tankSprite[i] = tankImage[x, y] == whitePixel;
|
|
}
|
|
|
|
_tankSpriteWidth = tankImage.Width;
|
|
}
|
|
|
|
public void Draw(PixelDisplayBufferView buffer)
|
|
{
|
|
foreach (var tank in _tanks)
|
|
{
|
|
var pos = tank.Position.ToPixelPosition();
|
|
var rotationVariant = (int)Math.Round(tank.Rotation) % 16;
|
|
for (var dy = 0; dy < MapService.TileSize; dy++)
|
|
{
|
|
var rowStartIndex = (pos.Y + dy) * MapService.PixelsPerRow;
|
|
|
|
for (var dx = 0; dx < MapService.TileSize; dx++)
|
|
{
|
|
if (!TankSpriteAt(dx, dy, rotationVariant))
|
|
continue;
|
|
|
|
var i = rowStartIndex + pos.X + dx;
|
|
buffer.Pixels[i] = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private bool TankSpriteAt(int dx, int dy, int tankRotation)
|
|
{
|
|
var x = tankRotation % 4 * (MapService.TileSize + 1);
|
|
var y = (int)Math.Floor(tankRotation / 4d) * (MapService.TileSize + 1);
|
|
var index = (y + dy) * _tankSpriteWidth + x + dx;
|
|
|
|
return _tankSprite[index];
|
|
}
|
|
}
|