From 52a145f7f1d24ebe44df69b4f0bcef1e02fb2626 Mon Sep 17 00:00:00 2001
From: Ed <96445749+TheShuEd@users.noreply.github.com>
Date: Thu, 20 Mar 2025 10:06:55 +0300
Subject: [PATCH] Support separate displacement maps for left and right hand
 (#35820)

* Update HandsSystem.cs

* Update HandsComponent.cs
---
 Content.Client/Hands/Systems/HandsSystem.cs       |  7 ++++++-
 Content.Shared/Hands/Components/HandsComponent.cs | 15 +++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/Content.Client/Hands/Systems/HandsSystem.cs b/Content.Client/Hands/Systems/HandsSystem.cs
index 68800a2afe..f879e06a20 100644
--- a/Content.Client/Hands/Systems/HandsSystem.cs
+++ b/Content.Client/Hands/Systems/HandsSystem.cs
@@ -349,7 +349,12 @@ namespace Content.Client.Hands.Systems
                 sprite.LayerSetData(index, layerData);
 
                 //Add displacement maps
-                if (handComp.HandDisplacement is not null)
+                if (hand.Location == HandLocation.Left && handComp.LeftHandDisplacement is not null)
+                    _displacement.TryAddDisplacement(handComp.LeftHandDisplacement, sprite, index, key, revealedLayers);
+                else if (hand.Location == HandLocation.Right && handComp.RightHandDisplacement is not null)
+                    _displacement.TryAddDisplacement(handComp.RightHandDisplacement, sprite, index, key, revealedLayers);
+                //Fallback to default displacement map
+                else if (handComp.HandDisplacement is not null)
                     _displacement.TryAddDisplacement(handComp.HandDisplacement, sprite, index, key, revealedLayers);
             }
 
diff --git a/Content.Shared/Hands/Components/HandsComponent.cs b/Content.Shared/Hands/Components/HandsComponent.cs
index b3cb51ae35..0af318ba06 100644
--- a/Content.Shared/Hands/Components/HandsComponent.cs
+++ b/Content.Shared/Hands/Components/HandsComponent.cs
@@ -78,9 +78,24 @@ public sealed partial class HandsComponent : Component
     [DataField, ViewVariables(VVAccess.ReadWrite)]
     public TimeSpan ThrowCooldown = TimeSpan.FromSeconds(0.5f);
 
+    /// <summary>
+    ///     Fallback displacement map applied to all sprites in the hand, unless otherwise specified
+    /// </summary>
     [DataField]
     public DisplacementData? HandDisplacement;
 
+    /// <summary>
+    ///     If defined, applies to all sprites in the left hand, ignoring <see cref="HandDisplacement"/>
+    /// </summary>
+    [DataField]
+    public DisplacementData? LeftHandDisplacement;
+
+    /// <summary>
+    ///     If defined, applies to all sprites in the right hand, ignoring <see cref="HandDisplacement"/>
+    /// </summary>
+    [DataField]
+    public DisplacementData? RightHandDisplacement;
+
     /// <summary>
     /// If false, hands cannot be stripped, and they do not show up in the stripping menu.
     /// </summary>