Module 1 Project 2: Traffic Light

All cars require some way to keep roads safe, that is where these lights come in!

We will be utilizing the following topics:

• Parts
• Material
• BrickColor
• Anchoring
• Scripting

Making the Traffic Light

The Essentials

1. Get 1 part and 3 spheres (red in image).
2. Add BrickColor and Material (blue in image). To make the lights glow, choose the Neon material.
   

3. Make the traffic light.
4. Place them in a similar fashion as shown below.

Anchoring and Naming

1. Select all the parts and on the
   Home
   or
   Model
   tab's (the picture below shows
   Home
   ), click on
   Anchor
   (red in image).
   

2. Select all pieces at the same time and press Ctrl+G on Windows, or Cmd+G on a Mac to group them.
   

3. Go ahead and name every part, organization is important. Also, it will get students into a good habit! It is suggested to name them: "Base", "BotLight", "MidLight", and "TopLight", respectively.

The Script

1. We will be keeping track of the three lights and repeatedly flash them one by one.
2. Add a script inside the
   Group
   and add the following code:

-- Part Variable
tl = script.Parent.TopLight -- top light part
ml = script.Parent.MidLight -- mid light part
bl = script.Parent.BotLight -- bot light part

-- Color Variables
red = BrickColor.new("Really red")
yellow = BrickColor.new("New Yeller")
green = BrickColor.new("Bright green")
off = BrickColor.new("Black")

-- Loop that forever changes lights
while true do
tl.BrickColor = green
ml.BrickColor = off
bl.BrickColor = off

wait(2)

tl.BrickColor = off
ml.BrickColor = yellow
bl.BrickColor = off

wait(2)

tl.BrickColor = off
ml.BrickColor = off
bl.BrickColor = red

wait(2)
end

Note: If you didn't name your parts TopLight, MidLight, and BotLight, rename the respective lines in the code to the correct names (they can't all be

If you want to customize your traffic light colors, open the Color button and hover over the color you want to see the name.