infinitely generated rooms, works in studio but not in-game. why is this?

hi, i have a code that creates a new room as you walk along, the point of the game is just to open doors infinitely.

this is my code:

local Players = game:GetService("Players")

local visited = {}

local function OnCharacterAdded(char)
	while char.Humanoid.Health > 0 do
		wait(0.1)
		for i = -25,1 do
			local zPos = math.floor((char.HumanoidRootPart.Position.Z + i * 100) / 100 + 0.5) * 20
			if visited[zPos] == nil then
				visited[zPos] = script.Room:Clone()
				local p = visited[zPos]

				p:SetPrimaryPartCFrame(CFrame.new(Vector3.new(0,1.5,zPos)))

				p.Parent = workspace.Room
			end
		end
	end
end

local function OnPlayerAdded(plr)
	if plr.Character then
		OnCharacterAdded(plr.Character)
	end
	plr.CharacterAdded:Connect(OnCharacterAdded)
end

for _, Player in ipairs(Players:GetPlayers()) do
	OnPlayerAdded(Player)
end

Players.PlayerAdded:Connect(OnPlayerAdded)

it only works in studio for some reason, and in-game it gives me errors along the lines of "execution time exhausted" and I have no idea how to fix it.

i've made several posts on the dev forums and got no help, so I'm posting here in hopes of getting an actual answer that helps

thank you

"Execution time exhausted" is an error that you get when you forgot to put a wait() (wait 1 frame) on a loop. Lua is a language that runs very fast, to fix it replace all your code with this or just straight up put a wait() at the end of every loop:

local Players = game:GetService("Players")
	 
	local visited = {}
	 
	local function OnCharacterAdded(char)
	    while char.Humanoid.Health > 0 do
	        wait(0.1)
	        for i = -25,1 do
	            local zPos = math.floor((char.HumanoidRootPart.Position.Z + i * 100) / 100 + 0.5) * 20
	            if visited[zPos] == nil then
	                visited[zPos] = script.Room:Clone()
	                local p = visited[zPos]
	 
	                p:SetPrimaryPartCFrame(CFrame.new(Vector3.new(0,1.5,zPos)))
	 
	                p.Parent = workspace.Room
	           		 end
			wait()
		        end
		wait()
	    end
	end
	 
	local function OnPlayerAdded(plr)
	    if plr.Character then
	        OnCharacterAdded(plr.Character)
	    end
	    plr.CharacterAdded:Connect(OnCharacterAdded)
	end
	 
	for _, Player in ipairs(Players:GetPlayers()) do
	    	OnPlayerAdded(Player)
	wait()
end
	 
	Players.PlayerAdded:Connect(OnPlayerAdded)

It's basically the same code however all the loops have a wait() inside.