move backend to subfolder

tanks-backend/TanksServer/GameLogic/MoveBullets.cs

@@ -0,0 +1,25 @@
+namespace TanksServer.GameLogic;
+
+internal sealed class MoveBullets(
+    MapEntityManager entityManager,
+    IOptions<GameRules> config
+) : ITickStep
+{
+    public Task TickAsync(TimeSpan delta)
+    {
+        foreach (var bullet in entityManager.Bullets)
+            MoveBullet(bullet, delta);
+
+        return Task.CompletedTask;
+    }
+
+    private void MoveBullet(Bullet bullet, TimeSpan delta)
+    {
+        var speed = config.Value.BulletSpeed * delta.TotalSeconds;
+        var angle = bullet.Rotation * 2 * Math.PI;
+        bullet.Position = new FloatPosition(
+            bullet.Position.X + Math.Sin(angle) * speed,
+            bullet.Position.Y - Math.Cos(angle) * speed
+        );
+    }
+}