Lava Floor

Part of the Roblox Game Scripting section of Coddy's Lua journey. Lesson 12 of 24.

From the touch pad you know that hit is a body part. Its Parent is the character, the model holding all the body parts. The character also holds a Humanoid, which owns Health.

FindFirstChild looks for a child by name and gives back nil (nothing) when there is none:

local humanoid = hit.Parent:FindFirstChild("Humanoid")
if humanoid then
	print(humanoid.Health)
end

The if skips its block when humanoid is nil. A falling ball has no Humanoid, and using nil as if it were a Humanoid raises an error in Output every time something that is not a player touches the part.

A Humanoid whose Health reaches 0 is defeated, and the player respawns a few seconds later.

Challenge

Medium

The glowing orange strip is lava, and this script is inside it. When something touches the lava, find a Humanoid in hit.Parent and, if there is one, set its Health to 0.

Make sure your script survives things that are not players: one check drops a ball on the lava.

Press Play and walk into the lava (you respawn after 5 seconds), then Check.

Try it yourself

local lava = script.Parent

lava.Touched:Connect(function(hit)

end)

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

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 PadLava FloorLeaderstats Who Touched It?Coin Collector Coin Door

Practice on your own: Online Lua compiler