pxt-calliope/docs/lessons/game-counter.md
2016-05-26 15:24:10 -07:00

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Markdown

# game counter lesson
Learn how to create a counter with with on button pressed.
## Topic
Game Library
## Quick Links
* [activity](/lessons/game-counter/activity)
* [challenges](/lessons/game-counter/challenges)
## Prior learning/place of lesson in scheme of work
Learn how to create game blocks to keep track of the current score. We will be learning how to create a game using the blocks called `add points to score`, `score` as well as simple commands such as on button pressed and show number.
## Documentation
```cards
game.addScore(1)
input.onButtonPressed(Button.A, () => {})
basic.showNumber(0)
```
## Objectives
* learn how arithmetic operators operate on numbers and return a number
* learn how to run code when an input button is pressed
* learn how to show a score on the LED screen