Add tether gun (#16430)
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metalgearsloth
GitHub
52
Content.Client/Weapons/Misc/TetherGunOverlay.cs
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52
Content.Client/Weapons/Misc/TetherGunOverlay.cs
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using Content.Shared.Weapons.Misc;
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using Robust.Client.Graphics;
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using Robust.Shared.Enums;
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namespace Content.Client.Weapons.Misc;
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public sealed class TetherGunOverlay : Overlay
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{
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public override OverlaySpace Space => OverlaySpace.WorldSpaceBelowFOV;
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private IEntityManager _entManager;
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public TetherGunOverlay(IEntityManager entManager)
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{
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_entManager = entManager;
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}
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protected override void Draw(in OverlayDrawArgs args)
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{
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var query = _entManager.EntityQueryEnumerator<TetheredComponent>();
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var xformQuery = _entManager.GetEntityQuery<TransformComponent>();
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var worldHandle = args.WorldHandle;
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var xformSystem = _entManager.System<SharedTransformSystem>();
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while (query.MoveNext(out var uid, out var tethered))
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{
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var gun = tethered.Tetherer;
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if (!xformQuery.TryGetComponent(gun, out var gunXform) ||
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!xformQuery.TryGetComponent(uid, out var xform))
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{
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continue;
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}
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if (xform.MapID != gunXform.MapID)
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continue;
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var worldPos = xformSystem.GetWorldPosition(xform, xformQuery);
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var gunWorldPos = xformSystem.GetWorldPosition(gunXform, xformQuery);
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var diff = worldPos - gunWorldPos;
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var angle = diff.ToWorldAngle();
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var length = diff.Length / 2f;
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var midPoint = gunWorldPos + diff / 2;
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const float Width = 0.05f;
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var box = new Box2(-Width, -length, Width, length);
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var rotated = new Box2Rotated(box.Translated(midPoint), angle, midPoint);
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worldHandle.DrawRect(rotated, Color.Orange.WithAlpha(0.3f));
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}
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}
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}
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103
Content.Client/Weapons/Misc/TetherGunSystem.cs
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103
Content.Client/Weapons/Misc/TetherGunSystem.cs
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using Content.Shared.Weapons.Misc;
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using Robust.Client.GameObjects;
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using Robust.Client.Graphics;
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using Robust.Client.Input;
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using Robust.Client.Player;
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using Robust.Shared.Map;
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using Robust.Shared.Timing;
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namespace Content.Client.Weapons.Misc;
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public sealed class TetherGunSystem : SharedTetherGunSystem
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{
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[Dependency] private readonly IEyeManager _eyeManager = default!;
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[Dependency] private readonly IGameTiming _timing = default!;
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[Dependency] private readonly IInputManager _input = default!;
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[Dependency] private readonly IMapManager _mapManager = default!;
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[Dependency] private readonly IOverlayManager _overlay = default!;
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[Dependency] private readonly IPlayerManager _player = default!;
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public override void Initialize()
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{
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base.Initialize();
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SubscribeLocalEvent<TetheredComponent, ComponentStartup>(OnTetheredStartup);
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SubscribeLocalEvent<TetheredComponent, ComponentShutdown>(OnTetheredShutdown);
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_overlay.AddOverlay(new TetherGunOverlay(EntityManager));
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}
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public override void Shutdown()
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{
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base.Shutdown();
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_overlay.RemoveOverlay<TetherGunOverlay>();
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}
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protected override bool CanTether(EntityUid uid, TetherGunComponent component, EntityUid target, EntityUid? user)
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{
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// Need powercells predicted sadly :<
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return false;
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}
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public override void Update(float frameTime)
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{
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base.Update(frameTime);
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if (!_timing.IsFirstTimePredicted)
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return;
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var player = _player.LocalPlayer?.ControlledEntity;
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if (player == null ||
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!TryGetTetherGun(player.Value, out var gunUid, out var gun) ||
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gun.TetherEntity == null)
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{
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return;
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}
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var mousePos = _input.MouseScreenPosition;
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var mouseWorldPos = _eyeManager.ScreenToMap(mousePos);
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if (mouseWorldPos.MapId == MapId.Nullspace)
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return;
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EntityCoordinates coords;
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if (_mapManager.TryFindGridAt(mouseWorldPos, out var grid))
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{
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coords = EntityCoordinates.FromMap(grid.Owner, mouseWorldPos, TransformSystem);
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}
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else
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{
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coords = EntityCoordinates.FromMap(_mapManager.GetMapEntityId(mouseWorldPos.MapId), mouseWorldPos, TransformSystem);
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}
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const float BufferDistance = 0.1f;
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if (TryComp<TransformComponent>(gun.TetherEntity, out var tetherXform) &&
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tetherXform.Coordinates.TryDistance(EntityManager, TransformSystem, coords, out var distance) &&
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distance < BufferDistance)
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{
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return;
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}
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RaisePredictiveEvent(new RequestTetherMoveEvent()
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{
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Coordinates = coords
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});
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}
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private void OnTetheredStartup(EntityUid uid, TetheredComponent component, ComponentStartup args)
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{
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if (!TryComp<SpriteComponent>(uid, out var sprite))
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return;
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sprite.Color = Color.Orange;
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}
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private void OnTetheredShutdown(EntityUid uid, TetheredComponent component, ComponentShutdown args)
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{
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if (!TryComp<SpriteComponent>(uid, out var sprite))
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return;
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sprite.Color = Color.White;
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}
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}
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@@ -1,142 +0,0 @@
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using Content.Client.Gameplay;
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using Content.Shared.Weapons.Ranged.Systems;
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using Robust.Client.GameObjects;
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using Robust.Client.Graphics;
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using Robust.Client.Input;
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using Robust.Client.Physics;
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using Robust.Client.State;
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using Robust.Shared.Input;
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using Robust.Shared.Map;
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using Robust.Shared.Physics.Components;
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using Robust.Shared.Timing;
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namespace Content.Client.Weapons.Ranged.Systems;
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public sealed class TetherGunSystem : SharedTetherGunSystem
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{
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[Dependency] private readonly IEyeManager _eyeManager = default!;
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[Dependency] private readonly IGameTiming _gameTiming = default!;
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[Dependency] private readonly IInputManager _inputManager = default!;
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[Dependency] private readonly InputSystem _inputSystem = default!;
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[Dependency] private readonly PhysicsSystem _physics = default!;
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public bool Enabled { get; set; }
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/// <summary>
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/// The entity being dragged around.
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/// </summary>
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private EntityUid? _dragging;
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private EntityUid? _tether;
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private MapCoordinates? _lastMousePosition;
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public override void Initialize()
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{
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base.Initialize();
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SubscribeNetworkEvent<PredictTetherEvent>(OnPredictTether);
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SubscribeNetworkEvent<TetherGunToggleMessage>(OnTetherGun);
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SubscribeLocalEvent<UpdateIsPredictedEvent>(OnUpdatePrediction);
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}
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private void OnUpdatePrediction(ref UpdateIsPredictedEvent ev)
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{
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if (ev.Uid == _dragging || ev.Uid == _tether)
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ev.IsPredicted = true;
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}
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private void OnTetherGun(TetherGunToggleMessage ev)
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{
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Enabled = ev.Enabled;
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}
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private void OnPredictTether(PredictTetherEvent ev)
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{
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if (_dragging != ev.Entity || _tether == ev.Entity)
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return;
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var oldTether = _tether;
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_tether = ev.Entity;
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_physics.UpdateIsPredicted(oldTether);
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_physics.UpdateIsPredicted(_tether);
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}
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public override void Update(float frameTime)
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{
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base.Update(frameTime);
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if (!Enabled || !_gameTiming.IsFirstTimePredicted) return;
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var state = _inputSystem.CmdStates.GetState(EngineKeyFunctions.Use);
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if (state != BoundKeyState.Down)
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{
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StopDragging();
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return;
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}
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var mouseScreenPos = _inputManager.MouseScreenPosition;
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var mousePos = _eyeManager.ScreenToMap(mouseScreenPos);
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if (_dragging == null)
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{
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var gameState = IoCManager.Resolve<IStateManager>().CurrentState;
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if (gameState is GameplayState game)
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{
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var uid = game.GetClickedEntity(mousePos);
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if (uid != null)
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StartDragging(uid.Value, mousePos);
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}
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if (_dragging == null)
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return;
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}
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if (!TryComp<TransformComponent>(_dragging!.Value, out var xform) ||
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_lastMousePosition!.Value.MapId != xform.MapID ||
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!TryComp<PhysicsComponent>(_dragging, out var body))
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{
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StopDragging();
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return;
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}
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if (_lastMousePosition.Value.Position.EqualsApprox(mousePos.Position)) return;
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_lastMousePosition = mousePos;
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RaiseNetworkEvent(new TetherMoveEvent()
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{
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Coordinates = _lastMousePosition!.Value,
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});
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}
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private void StopDragging()
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{
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if (_dragging == null) return;
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var oldDrag = _dragging;
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var oldTether = _tether;
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RaiseNetworkEvent(new StopTetherEvent());
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_dragging = null;
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_lastMousePosition = null;
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_tether = null;
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_physics.UpdateIsPredicted(oldDrag);
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_physics.UpdateIsPredicted(oldTether);
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}
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private void StartDragging(EntityUid uid, MapCoordinates coordinates)
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{
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_dragging = uid;
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_lastMousePosition = coordinates;
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RaiseNetworkEvent(new StartTetherEvent()
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{
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Entity = _dragging!.Value,
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Coordinates = coordinates,
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});
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_physics.UpdateIsPredicted(uid);
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}
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}
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