feat: add two-handed flashlight interactions

2026-08-24 00:48:07 +02:00
parent f4331f426c
commit bed12ad335
13 changed files with 524 additions and 1 deletions
@@ -0,0 +1,223 @@
+using System.Collections.Generic;
+using Game.Features.Interactions.Contracts;
+using Game.Features.Items.Contracts;
+using Game.Features.Players.Contracts;
+using Game.Godot;
+using Game.Godot.Extensions;
+using Game.Godot.Mappings;
+using Godot;
+
+namespace Game.Features.Interactions.Godot;
+
+public partial class PlayerInteractionController : Node, IItemSpawnPoint
+{
+    [Export] public Camera3D Camera;
+    [Export] public CharacterBody3D Body;
+    [Export] public InteractionRaycaster InteractionRaycaster;
+    [Export] public RayCast3D DropRaycaster;
+    [Export] public InteractionPromptController PromptController;
+    [Export] public Node3D LeftHandAnchor;
+    [Export] public Node3D RightHandAnchor;
+
+    private IItemInteractionService _items;
+    private IInteractionService _interactions;
+    private PlayerId _playerId;
+    private readonly HashSet<Hand> _dropActions = [];
+    private readonly Dictionary<Hand, InteractionTargetId?> _activeUseTargets = [];
+
+    public override void _Ready()
+    {
+        this.AssertRequiredExports();
+    }
+
+    public void Initialize(
+        PlayerId playerId,
+        IItemInteractionService items,
+        IInteractionService interactions
+    )
+    {
+        _playerId = playerId;
+        _items = items;
+        _interactions = interactions;
+    }
+
+    public override void _Process(double delta)
+    {
+        if (_items is null || _interactions is null || GamePause.IsPaused || !MouseCapture.IsCaptured)
+        {
+            PromptController.Clear();
+            return;
+        }
+
+        UpdatePrompt();
+    }
+
+    public override void _UnhandledInput(InputEvent @event)
+    {
+        if (_items is null || _interactions is null || GamePause.IsPaused || !MouseCapture.IsCaptured)
+        {
+            return;
+        }
+
+        if (@event.IsActionPressed(InputAction.UseLeftHand.ActionName()))
+        {
+            ProcessHandActionStarted(Hand.Left);
+            GetViewport().SetInputAsHandled();
+            return;
+        }
+
+        if (@event.IsActionReleased(InputAction.UseLeftHand.ActionName()))
+        {
+            ProcessHandActionCompleted(Hand.Left);
+            GetViewport().SetInputAsHandled();
+            return;
+        }
+
+        if (@event.IsActionPressed(InputAction.UseRightHand.ActionName()))
+        {
+            ProcessHandActionStarted(Hand.Right);
+            GetViewport().SetInputAsHandled();
+            return;
+        }
+
+        if (@event.IsActionReleased(InputAction.UseRightHand.ActionName()))
+        {
+            ProcessHandActionCompleted(Hand.Right);
+            GetViewport().SetInputAsHandled();
+            return;
+        }
+
+        if (@event.IsActionPressed(InputAction.Interact.ActionName()))
+        {
+            IInteractionTarget target = InteractionRaycaster.GetTarget<IInteractionTarget>();
+            if (target?.CanInteract == true)
+            {
+                _interactions.TryInteract(new InteractionRequest(_playerId, target.Id));
+            }
+
+            GetViewport().SetInputAsHandled();
+        }
+    }
+
+    public Vector3 GetItemSpawnPosition() => CalculateDropPosition();
+
+    private void ProcessHandActionStarted(Hand hand)
+    {
+        if (Input.IsActionPressed(InputAction.DropModifier.ActionName()))
+        {
+            if (_activeUseTargets.Remove(hand, out InteractionTargetId? activeTargetId))
+            {
+                _items.TryUse(new ItemUseRequest(
+                    _playerId,
+                    hand,
+                    ItemActionPhase.Cancelled,
+                    activeTargetId
+                ));
+            }
+
+            _items.TryDrop(hand, CalculateDropPosition());
+            _dropActions.Add(hand);
+            return;
+        }
+
+        if (!_items.IsHandFree(hand))
+        {
+            ItemUseRequest request = CreateUseRequest(hand, ItemActionPhase.Started);
+            ItemActionResult result = _items.TryUse(request);
+            if (result.Success)
+            {
+                _activeUseTargets[hand] = request.TargetId;
+            }
+
+            return;
+        }
+
+        IPickupTarget target = InteractionRaycaster.GetTarget<IPickupTarget>();
+        if (target is not null)
+        {
+            _items.TryPickup(target.ItemInfo.Id, hand);
+        }
+    }
+
+    private void ProcessHandActionCompleted(Hand hand)
+    {
+        if (_dropActions.Remove(hand))
+        {
+            return;
+        }
+
+        if (_activeUseTargets.Remove(hand, out InteractionTargetId? targetId))
+        {
+            _items.TryUse(new ItemUseRequest(_playerId, hand, ItemActionPhase.Completed, targetId));
+        }
+    }
+
+    private ItemUseRequest CreateUseRequest(Hand hand, ItemActionPhase phase)
+    {
+        InteractionTargetId? targetId = InteractionRaycaster.GetTarget<IInteractionTarget>()?.Id;
+        return new ItemUseRequest(_playerId, hand, phase, targetId);
+    }
+
+    private Vector3 CalculateDropPosition()
+    {
+        DropRaycaster.ForceRaycastUpdate();
+
+        Vector3 origin = Camera.GlobalPosition;
+        Vector3 direction = -Camera.GlobalBasis.Z.Normalized();
+        float distance = DropRaycaster.TargetPosition.Length();
+
+        if (DropRaycaster.IsColliding())
+        {
+            distance = Mathf.Max(0.25f, origin.DistanceTo(DropRaycaster.GetCollisionPoint()) - 0.2f);
+        }
+
+        return origin + direction * distance;
+    }
+
+    private void UpdatePrompt()
+    {
+        IPickupTarget pickupTarget = InteractionRaycaster.GetTarget<IPickupTarget>();
+        if (pickupTarget is not null)
+        {
+            ShowPickupPrompt(pickupTarget.ItemInfo);
+            return;
+        }
+
+        IInteractionTarget interactionTarget = InteractionRaycaster.GetTarget<IInteractionTarget>();
+        if (interactionTarget?.CanInteract == true)
+        {
+            PromptController.ShowPrompt($"[E] {interactionTarget.Prompt.Text}");
+            return;
+        }
+
+        PromptController.Clear();
+    }
+
+    private void ShowPickupPrompt(ItemInfo itemInfo)
+    {
+        if (itemInfo.HandRequirement == HandRequirement.Both)
+        {
+            bool bothHandsFree = _items.IsHandFree(Hand.Left) && _items.IsHandFree(Hand.Right);
+            PromptController.ShowPrompt(bothHandsFree
+                ? $"[LPM lub PPM] Podnieś {itemInfo.DisplayName} — obie ręce"
+                : "Potrzebujesz obu wolnych rąk");
+            return;
+        }
+
+        List<string> actions = [];
+
+        if (_items.IsHandFree(Hand.Left))
+        {
+            actions.Add($"[LPM] Podnieś {itemInfo.DisplayName} — lewa ręka");
+        }
+
+        if (_items.IsHandFree(Hand.Right))
+        {
+            actions.Add($"[PPM] Podnieś {itemInfo.DisplayName} — prawa ręka");
+        }
+
+        PromptController.ShowPrompt(actions.Count > 0
+            ? string.Join("\n", actions)
+            : "Brak wolnej ręki");
+    }
+}