feat: add extensible item inventory and world system
This commit is contained in:
@@ -0,0 +1,83 @@
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using Game.Features.Items.Contracts;
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using Game.Features.Items.Domain;
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using Godot;
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namespace Game.Features.Items.Application;
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public sealed class ItemInteractionService(
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HandsInventory hands,
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IItemRepository itemRepository,
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IHeldItemPresenter presenter
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) : IItemInteractionService
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{
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public bool IsHandFree(Hand hand) => hands.IsFree(hand);
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public ItemInstanceId? GetHeldItem(Hand hand) => hands.Get(hand);
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public ItemActionResult TryPickup(ItemInstanceId itemId, Hand hand)
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{
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if (!itemRepository.TryGet(itemId, out IItemInstance item))
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{
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return ItemActionResult.Fail(ItemActionStatus.ItemNotFound, $"Item {itemId} was not found.");
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}
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if (!hands.TryHold(itemId, item.Info.HandRequirement, hand))
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{
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return ItemActionResult.Fail(ItemActionStatus.HandOccupied, "The requested hand is not available.");
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}
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if (presenter.TryShowHeld(item, hand))
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{
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return ItemActionResult.Ok();
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}
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hands.Release(hand);
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return ItemActionResult.Fail(ItemActionStatus.PresentationFailed, "Could not present the held item.");
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}
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public ItemActionResult TryUse(ItemUseRequest request)
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{
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ItemInstanceId? itemId = hands.Get(request.Hand);
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if (itemId is null)
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{
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return ItemActionResult.Fail(ItemActionStatus.HandEmpty, "The requested hand is empty.");
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}
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if (!itemRepository.TryGet(itemId.Value, out IItemInstance item))
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{
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return ItemActionResult.Fail(ItemActionStatus.ItemNotFound, $"Item {itemId} was not found.");
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}
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ItemActionResult result = item.Use(request);
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if (result.Success)
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{
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presenter.Refresh(item);
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}
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return result;
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}
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public ItemActionResult TryDrop(Hand hand, Vector3 worldPosition)
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{
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ItemInstanceId? itemId = hands.Get(hand);
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if (itemId is null)
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{
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return ItemActionResult.Fail(ItemActionStatus.HandEmpty, "The requested hand is empty.");
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}
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if (!itemRepository.TryGet(itemId.Value, out IItemInstance item))
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{
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return ItemActionResult.Fail(ItemActionStatus.ItemNotFound, $"Item {itemId} was not found.");
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}
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hands.Release(hand);
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if (presenter.TryShowDropped(item, worldPosition))
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{
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return ItemActionResult.Ok();
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}
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hands.TryHold(itemId.Value, item.Info.HandRequirement, hand);
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return ItemActionResult.Fail(ItemActionStatus.PresentationFailed, "Could not present the dropped item.");
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}
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}
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@@ -0,0 +1 @@
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uid://e6q2h9v5b8k3p
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@@ -0,0 +1,7 @@
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namespace Game.Features.Items.Contracts;
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public enum Hand
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{
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Left,
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Right
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}
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@@ -0,0 +1 @@
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uid://c4n7h2w8m5q1p
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@@ -0,0 +1,7 @@
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namespace Game.Features.Items.Contracts;
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public enum HandRequirement
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{
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One,
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Both
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}
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@@ -0,0 +1 @@
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uid://d8p3k6v1r9y4b
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@@ -0,0 +1,10 @@
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using Godot;
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namespace Game.Features.Items.Contracts;
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public interface IHeldItemPresenter
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{
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bool TryShowHeld(IItemInstance item, Hand hand);
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bool TryShowDropped(IItemInstance item, Vector3 worldPosition);
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void Refresh(IItemInstance item);
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}
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@@ -0,0 +1 @@
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uid://c1q7y4d9m5x2v
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@@ -0,0 +1,7 @@
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namespace Game.Features.Items.Contracts;
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public interface IItemInstance
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{
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ItemInfo Info { get; }
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ItemActionResult Use(ItemUseRequest request);
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}
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@@ -0,0 +1 @@
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uid://b5x9q3h7m2w8f
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@@ -0,0 +1,12 @@
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using Godot;
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namespace Game.Features.Items.Contracts;
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public interface IItemInteractionService
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{
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bool IsHandFree(Hand hand);
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ItemInstanceId? GetHeldItem(Hand hand);
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ItemActionResult TryPickup(ItemInstanceId itemId, Hand hand);
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ItemActionResult TryUse(ItemUseRequest request);
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ItemActionResult TryDrop(Hand hand, Vector3 worldPosition);
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}
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@@ -0,0 +1 @@
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uid://f2k8q5b1w7m4n
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@@ -0,0 +1,6 @@
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namespace Game.Features.Items.Contracts;
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public interface IItemRepository
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{
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bool TryGet(ItemInstanceId itemId, out IItemInstance item);
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}
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@@ -0,0 +1 @@
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uid://e7n1m6v4k9r3q
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@@ -0,0 +1,8 @@
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using Godot;
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namespace Game.Features.Items.Contracts;
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public interface IItemSpawnPoint
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{
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Vector3 GetItemSpawnPosition();
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}
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@@ -0,0 +1 @@
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uid://a2v6r8m3q7k5d
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@@ -0,0 +1,10 @@
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using System.Collections.Generic;
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using Godot;
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namespace Game.Features.Items.Contracts;
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public interface IItemSpawner
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{
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IReadOnlyCollection<ItemDefinitionId> DefinitionIds { get; }
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ItemActionResult TrySpawn(ItemDefinitionId definitionId, Vector3 worldPosition, out ItemInstanceId itemId);
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}
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@@ -0,0 +1 @@
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uid://f4m9k2w6b8n1r
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@@ -0,0 +1,6 @@
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namespace Game.Features.Items.Contracts;
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public interface IPickupTarget
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{
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ItemInfo ItemInfo { get; }
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}
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@@ -0,0 +1 @@
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uid://c9v4g7p2m5x8d
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@@ -0,0 +1,8 @@
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namespace Game.Features.Items.Contracts;
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public enum ItemActionPhase
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{
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Started,
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Completed,
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Cancelled
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}
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@@ -0,0 +1 @@
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uid://c9w5d2n8q4m1h
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@@ -0,0 +1,10 @@
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namespace Game.Features.Items.Contracts;
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public readonly record struct ItemActionResult(ItemActionStatus Status, string Message = "")
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{
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public bool Success => Status == ItemActionStatus.Success;
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public static ItemActionResult Ok() => new(ItemActionStatus.Success);
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public static ItemActionResult Fail(ItemActionStatus status, string message) => new(status, message);
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}
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@@ -0,0 +1 @@
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uid://a8m4p1x7d3q6k
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@@ -0,0 +1,12 @@
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namespace Game.Features.Items.Contracts;
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public enum ItemActionStatus
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{
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Success,
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ItemNotFound,
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HandOccupied,
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HandEmpty,
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UnsupportedAction,
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PresentationFailed,
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UnknownDefinition
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}
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@@ -0,0 +1 @@
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uid://f1r6y3b9k5v2m
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@@ -0,0 +1,7 @@
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namespace Game.Features.Items.Contracts;
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public readonly record struct ItemDefinition(
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ItemDefinitionId Id,
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string DisplayName,
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HandRequirement HandRequirement
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);
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@@ -0,0 +1 @@
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uid://e3v8k4r1m7x2p
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@@ -0,0 +1,6 @@
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namespace Game.Features.Items.Contracts;
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public readonly record struct ItemDefinitionId(string Value)
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{
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public override string ToString() => Value;
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}
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@@ -0,0 +1 @@
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uid://b7q2n9c5w1m6y
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@@ -0,0 +1,8 @@
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namespace Game.Features.Items.Contracts;
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public readonly record struct ItemInfo(
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ItemInstanceId Id,
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ItemDefinitionId DefinitionId,
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string DisplayName,
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HandRequirement HandRequirement
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);
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@@ -0,0 +1 @@
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uid://e1r5j8w3n6c9h
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@@ -0,0 +1,8 @@
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using System;
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namespace Game.Features.Items.Contracts;
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public readonly record struct ItemInstanceId(Guid Value)
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{
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public override string ToString() => Value.ToString();
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}
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@@ -0,0 +1 @@
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uid://b6x2f9m4t7k3q
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@@ -0,0 +1,11 @@
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using Game.Features.Interactions.Contracts;
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using Game.Features.Players.Contracts;
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namespace Game.Features.Items.Contracts;
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public readonly record struct ItemUseRequest(
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PlayerId PlayerId,
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Hand Hand,
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ItemActionPhase Phase,
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InteractionTargetId? TargetId = null
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);
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@@ -0,0 +1 @@
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uid://d6k2v8m5r1c9n
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@@ -0,0 +1,83 @@
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using System;
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using Game.Features.Items.Contracts;
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namespace Game.Features.Items.Domain;
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public sealed class HandsInventory
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{
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private ItemInstanceId? _leftHand;
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private ItemInstanceId? _rightHand;
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public bool IsFree(Hand hand) => Get(hand) is null;
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public ItemInstanceId? Get(Hand hand) => hand switch
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{
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Hand.Left => _leftHand,
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Hand.Right => _rightHand,
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_ => throw new ArgumentOutOfRangeException(nameof(hand), hand, null)
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};
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public bool TryHold(ItemInstanceId itemId, HandRequirement requirement, Hand hand)
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{
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if (_leftHand == itemId || _rightHand == itemId)
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{
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return false;
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}
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if (requirement == HandRequirement.Both)
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{
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if (_leftHand is not null || _rightHand is not null)
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{
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return false;
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}
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_leftHand = itemId;
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_rightHand = itemId;
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return true;
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}
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if (!IsFree(hand))
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{
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return false;
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}
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Set(hand, itemId);
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return true;
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}
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public ItemInstanceId? Release(Hand hand)
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{
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ItemInstanceId? itemId = Get(hand);
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if (itemId is null)
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{
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return null;
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}
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if (_leftHand == itemId)
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{
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_leftHand = null;
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}
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if (_rightHand == itemId)
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{
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_rightHand = null;
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}
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return itemId;
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}
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private void Set(Hand hand, ItemInstanceId itemId)
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{
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switch (hand)
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{
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case Hand.Left:
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_leftHand = itemId;
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break;
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case Hand.Right:
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_rightHand = itemId;
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break;
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default:
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throw new ArgumentOutOfRangeException(nameof(hand), hand, null);
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}
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}
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}
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@@ -0,0 +1 @@
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uid://d5w1n8c4q7m2y
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@@ -0,0 +1,13 @@
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using Game.Features.Items.Contracts;
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namespace Game.Features.Items.Domain;
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public sealed class PassiveItemInstance(ItemInfo info) : IItemInstance
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{
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public ItemInfo Info { get; } = info;
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public ItemActionResult Use(ItemUseRequest request) => ItemActionResult.Fail(
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ItemActionStatus.UnsupportedAction,
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$"Item {Info.DefinitionId} cannot be used directly."
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);
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}
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@@ -0,0 +1 @@
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uid://d9p4x1m7v3k6c
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@@ -0,0 +1,95 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using Game.Features.Items.Contracts;
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using Game.Godot.Extensions;
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using Godot;
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namespace Game.Features.Items.Godot;
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public partial class ItemSpawnerController : Node, IItemSpawner
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{
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[Export] public Node3D ItemsRoot;
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[Export] public ItemWorldController ItemWorld;
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[Export] public global::Godot.Collections.Array<PackedScene> ItemScenes = [];
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private readonly Dictionary<ItemDefinitionId, PackedScene> _scenes = [];
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public IReadOnlyCollection<ItemDefinitionId> DefinitionIds => _scenes.Keys.ToArray();
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public override void _Ready()
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{
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this.AssertRequiredExports();
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}
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public void Initialize()
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{
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_scenes.Clear();
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foreach (PackedScene scene in ItemScenes)
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{
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RegisterScene(scene);
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}
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foreach (WorldItemController item in ItemWorld.Items)
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{
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string scenePath = item.SceneFilePath;
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if (string.IsNullOrWhiteSpace(scenePath))
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{
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continue;
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}
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PackedScene scene = ResourceLoader.Load<PackedScene>(scenePath);
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if (scene is not null)
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{
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_scenes.TryAdd(item.ItemInfo.DefinitionId, scene);
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}
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}
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if (_scenes.Count == 0)
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{
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throw new InvalidOperationException("The item spawn catalog is empty.");
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}
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}
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public ItemActionResult TrySpawn(
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ItemDefinitionId definitionId,
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Vector3 worldPosition,
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out ItemInstanceId itemId
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) {
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itemId = default;
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if (!_scenes.TryGetValue(definitionId, out PackedScene scene))
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{
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return ItemActionResult.Fail(
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ItemActionStatus.UnknownDefinition,
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$"Unknown item definition: {definitionId}."
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);
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}
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WorldItemController item = scene.Instantiate<WorldItemController>();
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item.InstanceId = Guid.NewGuid().ToString();
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ItemsRoot.AddChild(item);
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item.GlobalPosition = worldPosition;
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ItemWorld.Register(item);
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itemId = item.ItemInfo.Id;
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return ItemActionResult.Ok();
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}
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private void RegisterScene(PackedScene scene)
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{
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if (scene is null)
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{
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return;
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}
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WorldItemController prototype = scene.Instantiate<WorldItemController>();
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ItemDefinitionId definitionId = new(prototype.DefinitionId);
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prototype.Free();
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if (!_scenes.TryAdd(definitionId, scene))
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{
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throw new InvalidOperationException($"Duplicate item spawn definition: {definitionId}.");
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}
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}
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}
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@@ -0,0 +1 @@
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uid://c3x9m6w2q8r1b
|
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@@ -0,0 +1,69 @@
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using System;
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using System.Collections.Generic;
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using Game.Features.Items.Contracts;
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using Godot;
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namespace Game.Features.Items.Godot;
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public partial class ItemWorldController : Node, IItemRepository
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{
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public const string RegistryGroup = "item_world_registry";
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private readonly Dictionary<ItemInstanceId, WorldItemController> _items = [];
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public IReadOnlyCollection<WorldItemController> Items => _items.Values;
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public override void _EnterTree()
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{
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AddToGroup(RegistryGroup);
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}
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public void RegisterSceneItems()
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{
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foreach (Node node in GetTree().GetNodesInGroup(WorldItemController.ItemGroup))
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{
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if (node is WorldItemController item)
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{
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Register(item);
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}
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}
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}
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public void Register(WorldItemController item)
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{
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if (_items.TryGetValue(item.ItemInfo.Id, out WorldItemController existing))
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{
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if (ReferenceEquals(existing, item))
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{
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return;
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}
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throw new InvalidOperationException($"Duplicate item instance id: {item.ItemInfo.Id}.");
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}
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_items.Add(item.ItemInfo.Id, item);
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item.RegisterWith(this);
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}
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public void Unregister(ItemInstanceId itemId)
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{
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_items.Remove(itemId);
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}
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public bool TryGet(ItemInstanceId itemId, out IItemInstance item)
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{
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if (_items.TryGetValue(itemId, out WorldItemController controller))
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{
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item = controller.Item;
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return true;
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}
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item = null;
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return false;
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}
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public bool TryGetController(ItemInstanceId itemId, out WorldItemController controller)
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{
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return _items.TryGetValue(itemId, out controller);
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}
|
||||
}
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@@ -0,0 +1 @@
|
||||
uid://f8n3b6w1k5r9m
|
||||
@@ -0,0 +1,42 @@
|
||||
using Game.Features.Items.Contracts;
|
||||
using Godot;
|
||||
|
||||
namespace Game.Features.Items.Godot;
|
||||
|
||||
public sealed class PlayerHeldItemPresenter(
|
||||
ItemWorldController itemWorld,
|
||||
Node3D leftHandAnchor,
|
||||
Node3D rightHandAnchor
|
||||
) : IHeldItemPresenter
|
||||
{
|
||||
public bool TryShowHeld(IItemInstance item, Hand hand)
|
||||
{
|
||||
if (!itemWorld.TryGetController(item.Info.Id, out WorldItemController controller))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
Node3D anchor = hand == Hand.Left ? leftHandAnchor : rightHandAnchor;
|
||||
controller.SetHeld(anchor, item);
|
||||
return true;
|
||||
}
|
||||
|
||||
public bool TryShowDropped(IItemInstance item, Vector3 worldPosition)
|
||||
{
|
||||
if (!itemWorld.TryGetController(item.Info.Id, out WorldItemController controller))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
controller.SetDropped(worldPosition, item);
|
||||
return true;
|
||||
}
|
||||
|
||||
public void Refresh(IItemInstance item)
|
||||
{
|
||||
if (itemWorld.TryGetController(item.Info.Id, out WorldItemController controller))
|
||||
{
|
||||
controller.ApplyState(item);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1 @@
|
||||
uid://e5m2r8q1v7k4n
|
||||
@@ -0,0 +1,141 @@
|
||||
using System;
|
||||
using Game.Features.Items.Contracts;
|
||||
using Game.Features.Items.Domain;
|
||||
using Game.Godot.Extensions;
|
||||
using Godot;
|
||||
|
||||
namespace Game.Features.Items.Godot;
|
||||
|
||||
public partial class WorldItemController : RigidBody3D, IPickupTarget
|
||||
{
|
||||
public const string ItemGroup = "world_items";
|
||||
|
||||
[Export] public string InstanceId;
|
||||
[Export] public string DefinitionId = "item";
|
||||
[Export] public string DisplayName = "Item";
|
||||
[Export] public HandRequirement HandRequirement = HandRequirement.One;
|
||||
[Export] public CollisionShape3D Collision;
|
||||
[Export] public Node3D WorldVisual;
|
||||
[Export] public PackedScene HeldViewScene;
|
||||
|
||||
protected Node3D HeldView { get; private set; }
|
||||
protected bool IsHeld => HeldView is not null;
|
||||
|
||||
public ItemInfo ItemInfo { get; private set; }
|
||||
public ItemDefinition Definition { get; private set; }
|
||||
public IItemInstance Item { get; private set; }
|
||||
|
||||
private ItemWorldController _registry;
|
||||
|
||||
public override void _Ready()
|
||||
{
|
||||
this.AssertRequiredExports();
|
||||
|
||||
if (string.IsNullOrWhiteSpace(DefinitionId))
|
||||
{
|
||||
throw new InvalidOperationException($"{Name}: item definition id cannot be empty.");
|
||||
}
|
||||
|
||||
if (HeldViewScene is null)
|
||||
{
|
||||
throw new InvalidOperationException($"{Name}: held view scene is not assigned.");
|
||||
}
|
||||
|
||||
Guid id = string.IsNullOrWhiteSpace(InstanceId)
|
||||
? Guid.NewGuid()
|
||||
: Guid.Parse(InstanceId);
|
||||
|
||||
Definition = new ItemDefinition(new ItemDefinitionId(DefinitionId), DisplayName, HandRequirement);
|
||||
ItemInfo = new ItemInfo(
|
||||
new ItemInstanceId(id),
|
||||
Definition.Id,
|
||||
Definition.DisplayName,
|
||||
Definition.HandRequirement
|
||||
);
|
||||
Item = CreateItemInstance(ItemInfo);
|
||||
AddToGroup(ItemGroup);
|
||||
RegisterWithAvailableWorld();
|
||||
ApplyState(Item);
|
||||
}
|
||||
|
||||
public override void _ExitTree()
|
||||
{
|
||||
_registry?.Unregister(ItemInfo.Id);
|
||||
}
|
||||
|
||||
public void RegisterWith(ItemWorldController registry)
|
||||
{
|
||||
_registry = registry;
|
||||
}
|
||||
|
||||
public void SetHeld(Node3D anchor, IItemInstance item)
|
||||
{
|
||||
if (IsHeld)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
Freeze = true;
|
||||
Sleeping = true;
|
||||
LinearVelocity = Vector3.Zero;
|
||||
AngularVelocity = Vector3.Zero;
|
||||
Collision.SetDeferred(CollisionShape3D.PropertyName.Disabled, true);
|
||||
WorldVisual.Visible = false;
|
||||
|
||||
HeldView = HeldViewScene.Instantiate<Node3D>();
|
||||
anchor.AddChild(HeldView);
|
||||
HeldView.Transform = Transform3D.Identity;
|
||||
OnHeldViewCreated(HeldView);
|
||||
ApplyState(item);
|
||||
}
|
||||
|
||||
public void SetDropped(Vector3 worldPosition, IItemInstance item)
|
||||
{
|
||||
if (HeldView is not null)
|
||||
{
|
||||
OnHeldViewRemoving(HeldView);
|
||||
HeldView.QueueFree();
|
||||
HeldView = null;
|
||||
}
|
||||
|
||||
GlobalPosition = worldPosition;
|
||||
LinearVelocity = Vector3.Zero;
|
||||
AngularVelocity = Vector3.Zero;
|
||||
WorldVisual.Visible = true;
|
||||
Collision.SetDeferred(CollisionShape3D.PropertyName.Disabled, false);
|
||||
Freeze = false;
|
||||
Sleeping = false;
|
||||
ApplyState(item);
|
||||
}
|
||||
|
||||
public void ApplyState(IItemInstance item)
|
||||
{
|
||||
OnPresentationChanged(item);
|
||||
}
|
||||
|
||||
protected virtual IItemInstance CreateItemInstance(ItemInfo itemInfo) => new PassiveItemInstance(itemInfo);
|
||||
|
||||
protected virtual void OnHeldViewCreated(Node3D heldView)
|
||||
{
|
||||
}
|
||||
|
||||
protected virtual void OnHeldViewRemoving(Node3D heldView)
|
||||
{
|
||||
}
|
||||
|
||||
protected virtual void OnPresentationChanged(IItemInstance item)
|
||||
{
|
||||
}
|
||||
|
||||
private void RegisterWithAvailableWorld()
|
||||
{
|
||||
foreach (Node node in GetTree().GetNodesInGroup(ItemWorldController.RegistryGroup))
|
||||
{
|
||||
if (node is ItemWorldController registry)
|
||||
{
|
||||
registry.Register(this);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1 @@
|
||||
uid://d1x7m4q9v2c6k
|
||||
Reference in New Issue
Block a user