pxt-calliope/docs/lessons/truth-or-dare.md

# truth or dare lesson

create a love meter with the @boardname@.



## Topic

If (Conditionals)

## Quick Links

* [activity](/lessons/truth-or-dare/activity)
* [tutorial](/lessons/truth-or-dare/tutorial)
* [challenges](/lessons/truth-or-dare/challenges)
* [quiz](/lessons/truth-or-dare/quiz)
* [quiz answers](/lessons/truth-or-dare/quiz-answers)

## Prior learning/place of lesson in scheme of work

Learn how to use an if statement to run code run code depending on whether a condition is true or not. We will be learning how to create the game truth or dare using input an if statement, a local variable, math random as well as simple commands, such as show string and show LEDs.

## Documentation

```cards
basic.showLeds(`
    . . . . .
    . . . . .
    . . # . .
    . . . . .
    . . . . .
    `)
input.onButtonPressed(Button.A, () => {})
let x = 0
Math.randomRange(0, 3)
if (true) {}
basic.showString("Hello!")
```

## Objectives

* learn how to display an image on the @boardname@
* learn how to run code when an input button is pressed
* learn how to a create a variable for a place where you can store and retrieve data
* learn how to declare a new local variable or update the value of a variable
* learn how to return a random number
* learn how to conditionally run code depending on whether a condition is true or not
* learn how to show a string on the LED screen one character at a time (scrolling from left to right)