Programmers rarely finish a build in one go — they add a piece, run it, test it against their plan, and fix what does not work. That's exactly what game studios do before they release anything. Today you build the last of your three games, Galaxy Ghosts, from a new project. When it runs, you test it against the design brief you planned at the start and share one thing you changed along the way. Watch the board as each piece is modelled, then try it on your own device and run it to see what happens.

Welcome to the Galaxy Ghosts lesson! In this lesson, we will be using MakeCode Arcade to create an exciting space-themed game. You will learn how to create and control a player sprite, generate enemy sprites, and program interactions between them. By the end of this lesson, you will have a fully functional game where your player sprite can shoot at the enemy sprites and earn points. Let's get started!

https://arcade.makecode.com

Arcade: How to create a new project

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Create a new Arcade project using the makecode.com website.

First let's create our player sprite.

let mySprite: Sprite = null
mySprite = sprites.create(img`
    . . . . . . . c d . . . . . . . 
    . . . . . . . c d . . . . . . . 
    . . . . . . . c d . . . . . . . 
    . . . . . . . c b . . . . . . . 
    . . . . . . . f f . . . . . . . 
    . . . . . . . c 6 . . . . . . . 
    . . . . . . . f f . . . . . . . 
    . . . . . . . 8 6 . . . . . . . 
    . . . . . . 8 8 9 8 . . . . . . 
    . . . . . . 8 6 9 8 . . . . . . 
    . . . . . c c c 8 8 8 . . . . . 
    . . . . 8 8 6 6 6 9 8 8 . . . . 
    . . 8 f f f c c e e f f 8 8 . . 
    . 8 8 8 8 8 8 6 6 6 6 9 6 8 8 . 
    8 8 8 8 8 8 8 8 6 6 6 9 6 6 8 8 
    8 8 8 8 8 8 8 8 6 6 6 6 9 6 8 8 
    `, SpriteKind.Player)

Arcade: How to create a sprite in Arcade

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Click on the gray box in the sprite block to open the Editor. You can choose a sprite from the Gallery or you can paint your own sprite using the Editor.

We want to position the player sprite at the bottom of the screen and use the joystick (or arrow keys on your keyboard) to move it left and right.

Add the following new code:

let mySprite: Sprite = null
mySprite = sprites.create(img`
    . . . . . . . c d . . . . . . . 
    . . . . . . . c d . . . . . . . 
    . . . . . . . c d . . . . . . . 
    . . . . . . . c b . . . . . . . 
    . . . . . . . f f . . . . . . . 
    . . . . . . . c 6 . . . . . . . 
    . . . . . . . f f . . . . . . . 
    . . . . . . . 8 6 . . . . . . . 
    . . . . . . 8 8 9 8 . . . . . . 
    . . . . . . 8 6 9 8 . . . . . . 
    . . . . . c c c 8 8 8 . . . . . 
    . . . . 8 8 6 6 6 9 8 8 . . . . 
    . . 8 f f f c c e e f f 8 8 . . 
    . 8 8 8 8 8 8 6 6 6 6 9 6 8 8 . 
    8 8 8 8 8 8 8 8 6 6 6 9 6 6 8 8 
    8 8 8 8 8 8 8 8 6 6 6 6 9 6 8 8 
    `, SpriteKind.Player)
mySprite.y = 110
controller.moveSprite(mySprite, 100, 0)