576 lines
17 KiB
C#
576 lines
17 KiB
C#
// Only unused on .NET Core due to KeyValuePair.Deconstruct
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// ReSharper disable once RedundantUsingDirective
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using Robust.Shared.Utility;
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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 Content.Server.GameObjects.EntitySystems;
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using Content.Server.Interfaces.GameObjects;
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using Content.Shared.GameObjects;
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using Robust.Server.GameObjects;
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using Robust.Server.GameObjects.Components.Container;
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using Robust.Server.GameObjects.EntitySystemMessages;
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using Robust.Shared.GameObjects;
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using Robust.Shared.GameObjects.Components;
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using Robust.Shared.Interfaces.GameObjects;
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using Robust.Shared.Interfaces.Network;
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using Robust.Shared.IoC;
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using Robust.Shared.Log;
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using Robust.Shared.Map;
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using Robust.Shared.Maths;
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using Robust.Shared.Players;
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using Robust.Shared.Serialization;
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using Robust.Shared.ViewVariables;
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namespace Content.Server.GameObjects
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{
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[RegisterComponent]
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[ComponentReference(typeof(IHandsComponent))]
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public class HandsComponent : SharedHandsComponent, IHandsComponent
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{
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#pragma warning disable 649
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[Dependency] private readonly IEntitySystemManager _entitySystemManager;
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#pragma warning restore 649
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private string activeIndex;
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[ViewVariables(VVAccess.ReadWrite)]
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public string ActiveIndex
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{
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get => activeIndex;
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set
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{
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if (!hands.ContainsKey(value))
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{
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throw new ArgumentException($"No hand '{value}'");
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}
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activeIndex = value;
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Dirty();
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}
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}
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[ViewVariables] private Dictionary<string, ContainerSlot> hands = new Dictionary<string, ContainerSlot>();
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[ViewVariables] private List<string> orderedHands = new List<string>();
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// Mostly arbitrary.
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public const float PICKUP_RANGE = 2;
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public override void ExposeData(ObjectSerializer serializer)
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{
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base.ExposeData(serializer);
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// TODO: This does not serialize what objects are held.
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serializer.DataField(ref orderedHands, "hands", new List<string>(0));
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if (serializer.Reading)
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{
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foreach (var handsname in orderedHands)
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{
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AddHand(handsname);
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}
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}
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serializer.DataField(ref activeIndex, "defaultHand", orderedHands.LastOrDefault());
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}
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public IEnumerable<ItemComponent> GetAllHeldItems()
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{
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foreach (var slot in hands.Values)
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{
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if (slot.ContainedEntity != null)
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{
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yield return slot.ContainedEntity.GetComponent<ItemComponent>();
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}
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}
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}
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public bool IsHolding(IEntity entity)
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{
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foreach (var slot in hands.Values)
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{
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if (slot.ContainedEntity == entity)
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{
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return true;
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}
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}
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return false;
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}
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public ItemComponent GetHand(string index)
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{
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var slot = hands[index];
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return slot.ContainedEntity?.GetComponent<ItemComponent>();
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}
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public ItemComponent GetActiveHand => GetHand(ActiveIndex);
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/// <summary>
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/// Enumerates over the hand keys, returning the active hand first.
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/// </summary>
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public IEnumerable<string> ActivePriorityEnumerable()
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{
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yield return ActiveIndex;
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foreach (var hand in hands.Keys)
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{
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if (hand == ActiveIndex)
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{
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continue;
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}
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yield return hand;
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}
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}
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public bool PutInHand(ItemComponent item)
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{
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foreach (var hand in ActivePriorityEnumerable())
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{
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if (PutInHand(item, hand, fallback: false))
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{
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return true;
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}
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}
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return false;
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}
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public bool PutInHand(ItemComponent item, string index, bool fallback = true)
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{
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if (!CanPutInHand(item, index))
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{
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return fallback && PutInHand(item);
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}
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var slot = hands[index];
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Dirty();
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var success = slot.Insert(item.Owner);
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if (success)
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{
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item.Owner.Transform.LocalPosition = Vector2.Zero;
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}
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_entitySystemManager.GetEntitySystem<InteractionSystem>().HandSelectedInteraction(Owner, item.Owner);
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return success;
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}
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public void PutInHandOrDrop(ItemComponent item)
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{
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if (!PutInHand(item))
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item.Owner.Transform.GridPosition = Owner.Transform.GridPosition;
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}
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public bool CanPutInHand(ItemComponent item)
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{
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foreach (var hand in ActivePriorityEnumerable())
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{
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if (CanPutInHand(item, hand))
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{
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return true;
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}
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}
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return false;
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}
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public bool CanPutInHand(ItemComponent item, string index)
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{
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var slot = hands[index];
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return slot.CanInsert(item.Owner);
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}
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public string FindHand(IEntity entity)
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{
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foreach (var (index, slot) in hands)
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{
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if (slot.ContainedEntity == entity)
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{
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return index;
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}
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}
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return null;
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}
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public bool Drop(string slot, GridCoordinates coords, bool doMobChecks = true)
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{
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if (!CanDrop(slot))
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{
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return false;
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}
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var inventorySlot = hands[slot];
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var item = inventorySlot.ContainedEntity.GetComponent<ItemComponent>();
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if (!inventorySlot.Remove(inventorySlot.ContainedEntity))
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{
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return false;
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}
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if (doMobChecks && !_entitySystemManager.GetEntitySystem<InteractionSystem>().TryDroppedInteraction(Owner, item.Owner))
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return false;
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item.RemovedFromSlot();
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// TODO: The item should be dropped to the container our owner is in, if any.
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item.Owner.Transform.GridPosition = coords;
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Dirty();
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return true;
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}
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public bool Drop(IEntity entity, GridCoordinates coords, bool doMobChecks = true)
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{
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if (entity == null)
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{
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throw new ArgumentNullException(nameof(entity));
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}
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var slot = FindHand(entity);
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if (slot == null)
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{
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throw new ArgumentException("Entity must be held in one of our hands.", nameof(entity));
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}
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return Drop(slot, coords, doMobChecks);
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}
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public bool Drop(string slot, bool doMobChecks = true)
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{
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if (!CanDrop(slot))
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{
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return false;
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}
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var inventorySlot = hands[slot];
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var item = inventorySlot.ContainedEntity.GetComponent<ItemComponent>();
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if (doMobChecks && !_entitySystemManager.GetEntitySystem<InteractionSystem>().TryDroppedInteraction(Owner, item.Owner))
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return false;
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if (!inventorySlot.Remove(inventorySlot.ContainedEntity))
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{
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return false;
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}
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item.RemovedFromSlot();
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// TODO: The item should be dropped to the container our owner is in, if any.
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item.Owner.Transform.GridPosition = Owner.Transform.GridPosition;
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if (item.Owner.TryGetComponent<SpriteComponent>(out var spriteComponent))
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{
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spriteComponent.RenderOrder = item.Owner.EntityManager.CurrentTick.Value;
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}
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Dirty();
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return true;
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}
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public bool Drop(IEntity entity, bool doMobChecks = true)
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{
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if (entity == null)
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{
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throw new ArgumentNullException(nameof(entity));
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}
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var slot = FindHand(entity);
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if (slot == null)
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{
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throw new ArgumentException("Entity must be held in one of our hands.", nameof(entity));
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}
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return Drop(slot, doMobChecks);
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}
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public bool Drop(string slot, BaseContainer targetContainer, bool doMobChecks = true)
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{
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if (slot == null)
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{
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throw new ArgumentNullException(nameof(slot));
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}
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if (targetContainer == null)
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{
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throw new ArgumentNullException(nameof(targetContainer));
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}
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if (!CanDrop(slot))
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{
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return false;
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}
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var inventorySlot = hands[slot];
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var item = inventorySlot.ContainedEntity.GetComponent<ItemComponent>();
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if (doMobChecks && !_entitySystemManager.GetEntitySystem<InteractionSystem>().TryDroppedInteraction(Owner, item.Owner))
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{
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return false;
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}
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if (!inventorySlot.CanRemove(inventorySlot.ContainedEntity))
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{
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return false;
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}
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if (!targetContainer.CanInsert(inventorySlot.ContainedEntity))
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{
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return false;
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}
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if (!inventorySlot.Remove(inventorySlot.ContainedEntity))
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{
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throw new InvalidOperationException();
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}
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item.RemovedFromSlot();
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if (!targetContainer.Insert(item.Owner))
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{
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throw new InvalidOperationException();
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}
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Dirty();
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return true;
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}
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public bool Drop(IEntity entity, BaseContainer targetContainer, bool doMobChecks = true)
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{
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if (entity == null)
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{
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throw new ArgumentNullException(nameof(entity));
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}
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var slot = FindHand(entity);
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if (slot == null)
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{
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throw new ArgumentException("Entity must be held in one of our hands.", nameof(entity));
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}
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return Drop(slot, targetContainer, doMobChecks);
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}
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/// <summary>
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/// Checks whether an item can be dropped from the specified slot.
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/// </summary>
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/// <param name="slot">The slot to check for.</param>
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/// <returns>
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/// True if there is an item in the slot and it can be dropped, false otherwise.
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/// </returns>
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public bool CanDrop(string slot)
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{
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var inventorySlot = hands[slot];
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return inventorySlot.CanRemove(inventorySlot.ContainedEntity);
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}
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public void AddHand(string index)
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{
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if (HasHand(index))
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{
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throw new InvalidOperationException($"Hand '{index}' already exists.");
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}
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var slot = ContainerManagerComponent.Create<ContainerSlot>(Name + "_" + index, Owner);
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hands[index] = slot;
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if (!orderedHands.Contains(index))
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{
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orderedHands.Add(index);
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}
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if (ActiveIndex == null)
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{
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ActiveIndex = index;
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}
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Dirty();
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}
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public void RemoveHand(string index)
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{
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if (!HasHand(index))
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{
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throw new InvalidOperationException($"Hand '{index}' does not exist.");
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}
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hands[index].Shutdown(); //TODO verify this
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hands.Remove(index);
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orderedHands.Remove(index);
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if (index == ActiveIndex)
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{
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if (orderedHands.Count == 0)
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{
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activeIndex = null;
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}
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else
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{
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activeIndex = orderedHands[0];
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}
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}
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Dirty();
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}
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public bool HasHand(string index)
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{
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return hands.ContainsKey(index);
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}
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/// <summary>
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/// Get the name of the slot passed to the inventory component.
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/// </summary>
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private string HandSlotName(string index) => $"_hand_{index}";
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public override ComponentState GetComponentState()
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{
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var dict = new Dictionary<string, EntityUid>(hands.Count);
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foreach (var hand in hands)
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{
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if (hand.Value.ContainedEntity != null)
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{
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dict[hand.Key] = hand.Value.ContainedEntity.Uid;
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}
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}
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return new HandsComponentState(dict, ActiveIndex);
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}
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public void SwapHands()
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{
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var index = orderedHands.FindIndex(x => x == ActiveIndex);
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index++;
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if (index >= orderedHands.Count)
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{
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index = 0;
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}
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ActiveIndex = orderedHands[index];
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}
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public void ActivateItem()
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{
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var used = GetActiveHand?.Owner;
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if (used != null)
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{
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var interactionSystem = _entitySystemManager.GetEntitySystem<InteractionSystem>();
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interactionSystem.TryUseInteraction(Owner, used);
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}
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}
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public bool ThrowItem()
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{
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var item = GetActiveHand?.Owner;
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if (item != null)
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{
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var interactionSystem = _entitySystemManager.GetEntitySystem<InteractionSystem>();
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return interactionSystem.TryThrowInteraction(Owner, item);
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}
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return false;
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}
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public override void HandleNetworkMessage(ComponentMessage message, INetChannel channel, ICommonSession session = null)
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{
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base.HandleNetworkMessage(message, channel, session);
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if (session == null)
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{
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throw new ArgumentNullException(nameof(session));
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}
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switch (message)
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{
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case ClientChangedHandMsg msg:
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{
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var playerEntity = session.AttachedEntity;
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if (playerEntity == Owner && HasHand(msg.Index))
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ActiveIndex = msg.Index;
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break;
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}
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case ClientAttackByInHandMsg msg:
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{
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if (!hands.TryGetValue(msg.Index, out var slot))
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{
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Logger.WarningS("go.comp.hands", "Got a ClientAttackByInHandMsg with invalid hand index '{0}'",
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msg.Index);
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return;
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}
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var playerEntity = session.AttachedEntity;
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var used = GetActiveHand?.Owner;
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if (playerEntity == Owner && slot.ContainedEntity != null)
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{
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var interactionSystem = _entitySystemManager.GetEntitySystem<InteractionSystem>();
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if (used != null)
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{
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interactionSystem.Interaction(Owner, used, slot.ContainedEntity,
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GridCoordinates.InvalidGrid);
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}
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else
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{
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var entity = slot.ContainedEntity;
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if (!Drop(entity))
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break;
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interactionSystem.Interaction(Owner, entity);
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}
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}
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break;
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}
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case UseInHandMsg msg:
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{
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var playerEntity = session.AttachedEntity;
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var used = GetActiveHand?.Owner;
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if (playerEntity == Owner && used != null)
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{
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var interactionSystem = _entitySystemManager.GetEntitySystem<InteractionSystem>();
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interactionSystem.TryUseInteraction(Owner, used);
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}
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break;
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}
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case ActivateInHandMsg msg:
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{
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var playerEntity = session.AttachedEntity;
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var used = GetHand(msg.Index)?.Owner;
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if (playerEntity == Owner && used != null)
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{
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var interactionSystem = _entitySystemManager.GetEntitySystem<InteractionSystem>();
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interactionSystem.TryInteractionActivate(Owner, used);
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}
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break;
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}
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}
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}
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public void HandleSlotModifiedMaybe(ContainerModifiedMessage message)
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{
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foreach (var container in hands.Values)
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{
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if (container != message.Container)
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{
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continue;
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}
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Dirty();
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if (!message.Entity.TryGetComponent(out PhysicsComponent physics))
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{
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return;
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}
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// set velocity to zero
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physics.LinearVelocity = Vector2.Zero;
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return;
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}
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}
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}
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}
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