108 lines
3.1 KiB
C#
108 lines
3.1 KiB
C#
using Content.Client.Clickable;
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using Content.Shared.Weapons.Ranged;
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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.Shared.Input;
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using Robust.Shared.Map;
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using Robust.Shared.Timing;
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namespace Content.Client.Weapons.Ranged;
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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 EntityLookupSystem _lookup = default!;
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[Dependency] private readonly InputSystem _inputSystem = 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 MapCoordinates? _lastMousePosition;
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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 bodyQuery = GetEntityQuery<PhysicsComponent>();
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var lowest = new List<(int DrawDepth, EntityUid Entity)>();
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foreach (var ent in _lookup.GetEntitiesIntersecting(mousePos))
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{
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if (!bodyQuery.HasComponent(ent) ||
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!TryComp<ClickableComponent>(ent, out var clickable) ||
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!clickable.CheckClick(mousePos.Position, out var drawDepth, out _)) continue;
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lowest.Add((drawDepth, ent));
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}
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lowest.Sort((x, y) => y.DrawDepth.CompareTo(x.DrawDepth));
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foreach (var ent in lowest)
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{
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StartDragging(ent.Entity, mousePos);
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break;
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}
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if (_dragging == null) 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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{
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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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RaiseNetworkEvent(new StopTetherEvent());
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_dragging = null;
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_lastMousePosition = null;
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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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}
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}
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