Collision groups not working

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#1

Hi, when a player enters the game, apparently I can still collide with him. This is how the console looks like:

image
image552×793 369 KB

As you can see, every child of the player’s character is added to the collision group, but I can still collide with the player.

Code:

-- SERVICES
local Players = game:GetService("Players")
local PhysicsService = game:GetService("PhysicsService")
-- VARIABLES
local VipDoor: Part = workspace:WaitForChild("VipDoor") :: Part

local GroupId: number = 13519293

local NoCollisionsGroupKey: string = "NoCollisions"
local NoCollisionsGroup: number = PhysicsService:CreateCollisionGroup(NoCollisionsGroupKey)
-- FUNCTIONS
function ApplyNoCollisionsGroup(character: Model): ()
	for characterChildIndex: number, characterChild: Instance in ipairs(character:GetDescendants()) do
		if characterChild:IsA("BasePart") then
			warn("[NO COLLISIONS] " .. Players:GetPlayerFromCharacter(character).Name .. " | " .. characterChild.Name)
			PhysicsService:SetPartCollisionGroup(characterChild, NoCollisionsGroupKey)
		end
	end
end
-- SOURCE
PhysicsService:CollisionGroupSetCollidable(NoCollisionsGroupKey, NoCollisionsGroupKey, false)

Players.PlayerAdded:Connect(function(player: Player)
	if player.Character then
		ApplyNoCollisionsGroup(player.Character)
		
		if player:IsInGroup(GroupId) then
			PhysicsService:SetPartCollisionGroup(VipDoor, NoCollisionsGroupKey)
			warn("[NO COLLISIONS - VIP DOOR] " .. player.Name)
		end
	else
		player.CharacterAdded:Connect(function(character: Model)
			ApplyNoCollisionsGroup(character)
			
			if player:IsInGroup(GroupId) then
				PhysicsService:SetPartCollisionGroup(VipDoor, NoCollisionsGroupKey)
				warn("[NO COLLISIONS - VIP DOOR] " .. player.Name)
			end
		end)
	end
end)

Bump! (x1)

#2

https://developer.roblox.com/en-us/articles/Player-Player-Collisions

    local PhysicsService = game:GetService("PhysicsService")
    local Players = game:GetService("Players")
     
    local playerCollisionGroupName = "Players"
    PhysicsService:CreateCollisionGroup(playerCollisionGroupName)
    PhysicsService:CollisionGroupSetCollidable(playerCollisionGroupName, playerCollisionGroupName, false)
     
    local previousCollisionGroups = {}
     
    local function setCollisionGroup(object)
      if object:IsA("BasePart") then
        previousCollisionGroups[object] = object.CollisionGroupId
        PhysicsService:SetPartCollisionGroup(object, playerCollisionGroupName)
      end
    end
     
    local function setCollisionGroupRecursive(object)
      setCollisionGroup(object)
     
      for _, child in ipairs(object:GetChildren()) do
        setCollisionGroupRecursive(child)
      end
    end
     
    local function resetCollisionGroup(object)
      local previousCollisionGroupId = previousCollisionGroups[object]
      if not previousCollisionGroupId then return end 
     
      local previousCollisionGroupName = PhysicsService:GetCollisionGroupName(previousCollisionGroupId)
      if not previousCollisionGroupName then return end
     
      PhysicsService:SetPartCollisionGroup(object, previousCollisionGroupName)
      previousCollisionGroups[object] = nil
    end
     
    local function onCharacterAdded(character)
      setCollisionGroupRecursive(character)
     
      character.DescendantAdded:Connect(setCollisionGroup)
      character.DescendantRemoving:Connect(resetCollisionGroup)
    end
     
    local function onPlayerAdded(player)
      player.CharacterAdded:Connect(onCharacterAdded)
    end
     
    Players.PlayerAdded:Connect(onPlayerAdded)