Merge pull request #2420 from Haselnussbomber/add-agent-events

Add events based on AgentUpdateFlag

Dalamud/Game/Gui/AgentUpdateFlag.cs

@@ -0,0 +1,34 @@
+using FFXIVClientStructs.FFXIV.Client.UI.Agent;
+
+namespace Dalamud.Game.Gui;
+
+/// <summary>
+/// Represents a flag set by the game used by agents to conditionally update their addons.
+/// </summary>
+[Flags]
+public enum AgentUpdateFlag : byte
+{
+    /// <summary> Set when an inventory has been updated. </summary>
+    InventoryUpdate = 1 << 0,
+
+    /// <summary> Set when a hotbar slot has been executed, or a Gearset or Macro has been changed. </summary>
+    ActionBarUpdate = 1 << 1,
+
+    /// <summary> Set when the RetainerMarket inventory has been updated. </summary>
+    RetainerMarketInventoryUpdate = 1 << 2,
+
+    // /// <summary> Unknown use case. </summary>
+    // NameplateUpdate = 1 << 3,
+
+    /// <summary> Set when the player unlocked collectibles, contents or systems. </summary>
+    UnlocksUpdate = 1 << 4,
+
+    /// <summary> Set when <see cref="AgentHUD.SetMainCommandEnabledState"/> was called. </summary>
+    MainCommandEnabledStateUpdate = 1 << 5,
+
+    /// <summary> Set when any housing inventory has been updated. </summary>
+    HousingInventoryUpdate = 1 << 6,
+
+    /// <summary> Set when any content inventory has been updated. </summary>
+    ContentInventoryUpdate = 1 << 7,
+}

Dalamud/Game/Gui/GameGui.cs

@@ -43,6 +43,7 @@ internal sealed unsafe class GameGui : IInternalDisposableService, IGameGui
     private readonly Hook<HandleImmDelegate> handleImmHook;
     private readonly Hook<RaptureAtkModule.Delegates.SetUiVisibility> setUiVisibilityHook;
     private readonly Hook<Utf8String.Delegates.Ctor_FromSequence> utf8StringFromSequenceHook;
+    private readonly Hook<RaptureAtkModule.Delegates.Update> raptureAtkModuleUpdateHook;
 
     [ServiceManager.ServiceConstructor]
     private GameGui(TargetSigScanner sigScanner)
@@ -65,6 +66,10 @@ internal sealed unsafe class GameGui : IInternalDisposableService, IGameGui
 
         this.utf8StringFromSequenceHook = Hook<Utf8String.Delegates.Ctor_FromSequence>.FromAddress(Utf8String.Addresses.Ctor_FromSequence.Value, this.Utf8StringFromSequenceDetour);
 
+        this.raptureAtkModuleUpdateHook = Hook<RaptureAtkModule.Delegates.Update>.FromFunctionPointerVariable(
+            new(&RaptureAtkModule.StaticVirtualTablePointer->Update),
+            this.RaptureAtkModuleUpdateDetour);
+
         this.handleItemHoverHook.Enable();
         this.handleItemOutHook.Enable();
         this.handleImmHook.Enable();
@@ -72,6 +77,7 @@ internal sealed unsafe class GameGui : IInternalDisposableService, IGameGui
         this.handleActionHoverHook.Enable();
         this.handleActionOutHook.Enable();
         this.utf8StringFromSequenceHook.Enable();
+        this.raptureAtkModuleUpdateHook.Enable();
     }
 
     // Hooked delegates
@@ -88,6 +94,9 @@ internal sealed unsafe class GameGui : IInternalDisposableService, IGameGui
     /// <inheritdoc/>
     public event EventHandler<HoveredAction>? HoveredActionChanged;
 
+    /// <inheritdoc/>
+    public event Action<AgentUpdateFlag> AgentUpdate;
+
     /// <inheritdoc/>
     public bool GameUiHidden { get; private set; }
 
@@ -238,6 +247,7 @@ internal sealed unsafe class GameGui : IInternalDisposableService, IGameGui
         this.handleActionHoverHook.Dispose();
         this.handleActionOutHook.Dispose();
         this.utf8StringFromSequenceHook.Dispose();
+        this.raptureAtkModuleUpdateHook.Dispose();
     }
 
     /// <summary>
@@ -354,6 +364,21 @@ internal sealed unsafe class GameGui : IInternalDisposableService, IGameGui
 
         return thisPtr; // this function shouldn't need to return but the original asm moves this into rax before returning so be safe?
     }
+
+    private void RaptureAtkModuleUpdateDetour(RaptureAtkModule* thisPtr, float delta)
+    {
+        // The game clears the AgentUpdateFlag in the original function, but it also updates agents in it too.
+        // We'll make a copy of the flags, so that we can fire events after the agents have been updated.
+
+        var agentUpdateFlag = thisPtr->AgentUpdateFlag;
+
+        this.raptureAtkModuleUpdateHook.Original(thisPtr, delta);
+
+        if (agentUpdateFlag != RaptureAtkModule.AgentUpdateFlags.None)
+        {
+            this.AgentUpdate.InvokeSafely((AgentUpdateFlag)agentUpdateFlag);
+        }
+    }
 }
 
 /// <summary>
@@ -377,6 +402,7 @@ internal class GameGuiPluginScoped : IInternalDisposableService, IGameGui
         this.gameGuiService.UiHideToggled += this.UiHideToggledForward;
         this.gameGuiService.HoveredItemChanged += this.HoveredItemForward;
         this.gameGuiService.HoveredActionChanged += this.HoveredActionForward;
+        this.gameGuiService.AgentUpdate += this.AgentUpdateForward;
     }
 
     /// <inheritdoc/>
@@ -388,6 +414,9 @@ internal class GameGuiPluginScoped : IInternalDisposableService, IGameGui
     /// <inheritdoc/>
     public event EventHandler<HoveredAction>? HoveredActionChanged;
 
+    /// <inheritdoc/>
+    public event Action<AgentUpdateFlag> AgentUpdate;
+
     /// <inheritdoc/>
     public bool GameUiHidden => this.gameGuiService.GameUiHidden;
 
@@ -407,6 +436,7 @@ internal class GameGuiPluginScoped : IInternalDisposableService, IGameGui
         this.gameGuiService.UiHideToggled -= this.UiHideToggledForward;
         this.gameGuiService.HoveredItemChanged -= this.HoveredItemForward;
         this.gameGuiService.HoveredActionChanged -= this.HoveredActionForward;
+        this.gameGuiService.AgentUpdate -= this.AgentUpdateForward;
 
         this.UiHideToggled = null;
         this.HoveredItemChanged = null;
@@ -458,4 +488,6 @@ internal class GameGuiPluginScoped : IInternalDisposableService, IGameGui
     private void HoveredItemForward(object sender, ulong itemId) => this.HoveredItemChanged?.Invoke(sender, itemId);
 
     private void HoveredActionForward(object sender, HoveredAction hoverAction) => this.HoveredActionChanged?.Invoke(sender, hoverAction);
+
+    private void AgentUpdateForward(AgentUpdateFlag agentUpdateFlag) => this.AgentUpdate.InvokeSafely(agentUpdateFlag);
 }

Dalamud/Game/Inventory/GameInventory.cs

@@ -2,16 +2,14 @@ using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
 
+using Dalamud.Game.Gui;
 using Dalamud.Game.Inventory.InventoryEventArgTypes;
-using Dalamud.Hooking;
 using Dalamud.IoC;
 using Dalamud.IoC.Internal;
 using Dalamud.Logging.Internal;
 using Dalamud.Plugin.Internal;
 using Dalamud.Plugin.Services;
 
-using FFXIVClientStructs.FFXIV.Client.UI;
-
 namespace Dalamud.Game.Inventory;
 
 /// <summary>
@@ -33,7 +31,8 @@ internal class GameInventory : IInternalDisposableService
     [ServiceManager.ServiceDependency]
     private readonly Framework framework = Service<Framework>.Get();
 
-    private readonly Hook<RaptureAtkModuleUpdateDelegate> raptureAtkModuleUpdateHook;
+    [ServiceManager.ServiceDependency]
+    private readonly GameGui gameGui = Service<GameGui>.Get();
 
     private readonly GameInventoryType[] inventoryTypes;
     private readonly GameInventoryItem[]?[] inventoryItems;
@@ -47,18 +46,9 @@ internal class GameInventory : IInternalDisposableService
         this.inventoryTypes = Enum.GetValues<GameInventoryType>();
         this.inventoryItems = new GameInventoryItem[this.inventoryTypes.Length][];
 
-        unsafe
-        {
-            this.raptureAtkModuleUpdateHook = Hook<RaptureAtkModuleUpdateDelegate>.FromFunctionPointerVariable(
-                new(&RaptureAtkModule.StaticVirtualTablePointer->Update),
-                this.RaptureAtkModuleUpdateDetour);
-        }
-
-        this.raptureAtkModuleUpdateHook.Enable();
+        this.gameGui.AgentUpdate += this.OnAgentUpdate;
     }
 
-    private unsafe delegate void RaptureAtkModuleUpdateDelegate(RaptureAtkModule* ram, float f1);
-
     /// <inheritdoc/>
     void IInternalDisposableService.DisposeService()
     {
@@ -68,7 +58,7 @@ internal class GameInventory : IInternalDisposableService
             this.subscribersPendingChange.Clear();
             this.subscribersChanged = false;
             this.framework.Update -= this.OnFrameworkUpdate;
-            this.raptureAtkModuleUpdateHook.Dispose();
+            this.gameGui.AgentUpdate -= this.OnAgentUpdate;
         }
     }
 
@@ -319,10 +309,9 @@ internal class GameInventory : IInternalDisposableService
         return items;
     }
 
-    private unsafe void RaptureAtkModuleUpdateDetour(RaptureAtkModule* ram, float f1)
+    private void OnAgentUpdate(AgentUpdateFlag agentUpdateFlag)
     {
-        this.inventoriesMightBeChanged |= ram->AgentUpdateFlag != 0;
-        this.raptureAtkModuleUpdateHook.Original(ram, f1);
+        this.inventoriesMightBeChanged |= true;
     }
 
     /// <summary>

Dalamud/Plugin/Services/IGameGui.cs

@@ -26,6 +26,12 @@ public unsafe interface IGameGui
     /// </summary>
     public event EventHandler<HoveredAction> HoveredActionChanged;
 
+    /// <summary>
+    /// Fired when the game sets one or more <see cref="AgentUpdateFlag"/> values,
+    /// used by agents to conditionally update their addons.
+    /// </summary>
+    event Action<AgentUpdateFlag> AgentUpdate;
+
     /// <summary>
     /// Gets a value indicating whether the game UI is hidden.
     /// </summary>