Coin Respawn

Part of the Roblox Game Scripting section of Coddy's Lua journey. Lesson 16 of 25.

Each coin now gives 1, once. A real coin should disappear, then come back so it can be collected again.

Transparency = 1 hides a part, but it still fires Touched. CanTouch = false makes a part stop firing Touched until it is set back to true.

To bring it back, wait inside the Touched function and undo the changes. task.wait pauses only this function, so other touches keep arriving and are ignored while the debounce is true:

local used = false
pad.Touched:Connect(function(hit)
	if not used then
		used = true
		pad.Transparency = 0.5
		task.wait(5)
		pad.Transparency = 0
		used = false
	end
end)

The pad fades for 5 seconds after a touch, then it is back and ready again.

Challenge

Medium

Make a collected coin hide, then come back 3 seconds later.

After the line that adds the Coin, hide it: coin.Transparency = 1 and coin.CanTouch = false.
Then task.wait(3) and show it again: Transparency 0, CanTouch true.
Last, set collected = false so it can be collected again.

Press Play and walk through a coin: it vanishes and comes back 3 seconds later. Then Check.

Try it yourself

local Players = game:GetService("Players")
local coins = workspace.Coins

Players.PlayerAdded:Connect(function(player)
	local leaderstats = Instance.new("Folder")
	leaderstats.Name = "leaderstats"
	leaderstats.Parent = player

	local coinsValue = Instance.new("IntValue")
	coinsValue.Name = "Coins"
	coinsValue.Value = 0
	coinsValue.Parent = leaderstats
end)

for _, coin in coins:GetChildren() do
	local collected = false
	coin.Touched:Connect(function(hit)
		local player = Players:GetPlayerFromCharacter(hit.Parent)
		if player and not collected then
			collected = true
			player.leaderstats.Coins.Value += 1
		end
	end)
end

All lessons in Roblox Game Scripting

1Scripts and Parts

Hello, Roblox Paint a Part Stretch the Bridge Build a Platform

4Game Mechanics

Speed Pad Jump Pad Click Me The Button Door Moving Platform Checkpoints Finish Line

2Loops and Functions

Row of Pillars Staircase Builder Tower Builder Coin Factory Blinking Light Vanishing Bridge

5Your First Game

Your First Obby

3Events and Players

Touch Pad Lava Floor Leaderstats Who Touched It?Coin CollectorCoin RespawnCoin Door

Practice on your own: Online Lua compiler