separate folders per functionality

TanksServer/GameLogic/MoveTanks.cs

@@ -0,0 +1,62 @@
+namespace TanksServer.GameLogic;
+
+internal sealed class MoveTanks(
+    TankManager tanks, 
+    IOptions<TanksConfiguration> options,
+    MapService map
+) : ITickStep
+{
+    private readonly TanksConfiguration _config = options.Value;
+
+    public Task TickAsync()
+    {
+        foreach (var tank in tanks)
+            tank.Moved = TryMoveTank(tank);
+
+        return Task.CompletedTask;
+    }
+
+    private bool TryMoveTank(Tank tank)
+    {
+        var player = tank.Owner;
+
+        double speed;
+        switch (player.Controls)
+        {
+            case { Forward: false, Backward: false }:
+            case { Forward: true, Backward: true }:
+                return false;
+            case { Forward: true }:
+                speed = +_config.MoveSpeed;
+                break;
+            case { Backward: true }:
+                speed = -_config.MoveSpeed;
+                break;
+            default:
+                return false;
+        }
+
+        var angle = tank.Rotation / 16d * 2d * Math.PI;
+        var newX = tank.Position.X + Math.Sin(angle) * speed;
+        var newY = tank.Position.Y - Math.Cos(angle) * speed;
+
+        return TryMoveTankTo(tank, new FloatPosition(newX, newY))
+               || TryMoveTankTo(tank, tank.Position with { X = newX })
+               || TryMoveTankTo(tank, tank.Position with { Y = newY });
+    }
+
+    private bool TryMoveTankTo(Tank tank, FloatPosition newPosition)
+    {
+        var x0 = (int)Math.Floor(newPosition.X / MapService.TileSize);
+        var x1 = (int)Math.Ceiling(newPosition.X / MapService.TileSize);
+        var y0 = (int)Math.Floor(newPosition.Y / MapService.TileSize);
+        var y1 = (int)Math.Ceiling(newPosition.Y / MapService.TileSize);
+
+        TilePosition[] positions = { new(x0, y0), new(x0, y1), new(x1, y0), new(x1, y1) };
+        if (positions.Any(map.IsCurrentlyWall))
+            return false;
+
+        tank.Position = newPosition;
+        return true;
+    }
+}