82 lines
2.5 KiB
C#
82 lines
2.5 KiB
C#
namespace TanksServer.GameLogic;
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internal sealed class MoveTanks(
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MapEntityManager entityManager,
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IOptions<GameRules> options,
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MapService map
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) : ITickStep
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{
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private readonly GameRules _config = options.Value;
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public ValueTask TickAsync(TimeSpan delta)
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{
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foreach (var tank in entityManager.Tanks)
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tank.Moving = TryMoveTank(tank, delta);
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return ValueTask.CompletedTask;
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}
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private bool TryMoveTank(Tank tank, TimeSpan delta)
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{
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var player = tank.Owner;
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double speed;
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switch (player.Controls)
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{
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case { Forward: false, Backward: false }:
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case { Forward: true, Backward: true }:
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return false;
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case { Forward: true }:
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speed = +_config.MoveSpeed;
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break;
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case { Backward: true }:
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speed = -_config.MoveSpeed;
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break;
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default:
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return false;
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}
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speed *= delta.TotalSeconds;
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var angle = tank.Orientation / 16d * 2d * Math.PI;
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var newX = tank.Position.X + Math.Sin(angle) * speed;
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var newY = tank.Position.Y - Math.Cos(angle) * speed;
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return TryMoveTankTo(tank, new FloatPosition(newX, newY))
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|| TryMoveTankTo(tank, new FloatPosition(newX, tank.Position.Y))
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|| TryMoveTankTo(tank, new FloatPosition(tank.Position.X, newY));
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}
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private bool TryMoveTankTo(Tank tank, FloatPosition newPosition)
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{
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if (HitsWall(newPosition))
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return false;
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if (HitsTank(tank, newPosition))
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return false;
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tank.Owner.Scores.DistanceMoved += newPosition.Distance(tank.Position);
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tank.Position = newPosition;
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return true;
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}
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private bool HitsTank(Tank tank, FloatPosition newPosition) =>
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entityManager.Tanks
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.Where(otherTank => otherTank != tank)
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.Any(otherTank => newPosition.Distance(otherTank.Position) < MapService.TileSize);
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private bool HitsWall(FloatPosition newPosition)
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{
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var (topLeft, _) = newPosition.GetBoundsForCenter(MapService.TileSize);
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for (ulong y = 0; y < MapService.TileSize; y++)
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for (ulong x = 0; x < MapService.TileSize; x++)
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{
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var pixelToCheck = topLeft.GetPixelRelative((long)x, (long)y);
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if (map.Current.IsWall(pixelToCheck))
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return true;
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}
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return false;
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}
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}
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