Staircase Builder

Part of the Roblox Game Scripting section of Coddy's Lua journey. Lesson 6 of 25.

In the last lesson i moved each pillar along one direction. A staircase needs every step to go up and forward at the same time, so i goes into two of the three numbers.

Say each step is 1 stud thick. For step i to have its top at height i, its center must be half a stud lower: i - 0.5. To move each step 2 studs closer to the goal along Z, subtract i * 2 from where you start:

for i = 1, 3 do
	print(i - 0.5, 10 - i * 2)
end

This prints 0.5 8, 1.5 6 and 2.5 4: the Y and Z of three steps climbing toward Z 0. print with several values separates them with a space.

In this game a player walks up a step about 1 stud high; anything taller needs a jump.

Challenge

Easy

Build a staircase up to the yellow block, which is too high to jump.

The loop already makes 10 steps, all in one spot. Find the step.Position line.
Change it to Vector3.new(0, i - 0.5, 10 - i * 2): step i has its top at height i and is 2 studs closer than the last.

Press Play: ten steps climb to the block and you can walk up. Then Check.

Try it yourself

for i = 1, 10 do
	local step = Instance.new("Part")
	step.Name = "Step"
	step.Size = Vector3.new(6, 1, 2)
	step.Anchored = true
	-- Each step is 1 stud higher and 2 studs closer to the yellow block
	step.Position = Vector3.new(0, 0.5, 10)
	step.Parent = workspace
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 PillarsStaircase BuilderTower 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 Collector Coin Respawn Coin Door

Practice on your own: Online Lua compiler