Optimization of Collision Group Script

content/en-us/workspace/collisions.md

@@ -262,27 +262,27 @@ interesting but unintended gameplay, such as characters jumping on top of each o
 local PhysicsService = game:GetService("PhysicsService")
 local Players = game:GetService("Players")
 
-PhysicsService:RegisterCollisionGroup("Characters")
-PhysicsService:CollisionGroupSetCollidable("Characters", "Characters", false)
-
-local function onDescendantAdded(descendant)
-	-- Set collision group for any part descendant
-	if descendant:IsA("BasePart") then
-		descendant.CollisionGroup = "Characters"
-	end
-end
-
-local function onCharacterAdded(character)
-	-- Process existing and new descendants for physics setup
-	for _, descendant in character:GetDescendants() do
-		onDescendantAdded(descendant)
-	end
-	character.DescendantAdded:Connect(onDescendantAdded)
+local CollisionGroupName = "Characters"
+PhysicsService:RegisterCollisionGroup(CollisionGroupName)
+PhysicsService:CollisionGroupSetCollidable(CollisionGroupName, CollisionGroupName, false)
+
+local function setCollisionGroup(model)
+    -- Apply collision group to all existing parts in the model
+    for _, descendant in pairs(model:GetDescendants()) do
+        if descendant:IsA("BasePart") then
+            descendant.CollisionGroup = CollisionGroupName
+        end
+    end
 end
 
 Players.PlayerAdded:Connect(function(player)
-	-- Detect when the player's character is added
-	player.CharacterAdded:Connect(onCharacterAdded)
+    player.CharacterAdded:Connect(function(character)
+        setCollisionGroup(character)
+    end)
+    -- If the player already has a character, apply the collision group immediately
+    if player.Character then
+        setCollisionGroup(player.Character)
+    end
 end)
 ```