This tutorial will introduce you to variables.

What is a Variable?

Variables are containers that hold data while your game is running.

Variables are commonly used to store a character's hitpoints and position on the screen.

Creating a Variable

To create a variable, just give it a value.

The code below puts the number 42 in the variable secretNumber.

secretNumber = 42

Print secretNumber

Sync
WaitKey

Setting a Variable

When you create a variable, you are also setting it's initial value using the assignment operator =.

To change the value of a variable, just use the assignment operator again.

secretNumber = 42

Print secretNumber

secretNumber = 24

Print secretNumber

Sync
WaitKey

Variables can also store a calculated value :

mathResult = 4 + 2

Print mathResult

Sync
WaitKey

Variable Types

There are three primary kinds of variables, distinguished by the data they can hold.

Integer Variable

An integer variable contains a number without a decimal fraction.

Integer variables have no symbol after their name.

integerVar = 42

Float Variable

A float variable contains a number with a decimal fraction.

Float vars have the # symbol after their name.

floatVar# = 42.24

String Variable

A string variable contains a string, that is, a bunch of characters and symbols you'd use in the name of something or a message to the player.

String variables have the $ after their name.

stringVar$ = "I'm a string!"

Next Steps

• Basic Math

How To

• Limit the Value of a Variable
• Make a Variable Negative