Asteroids+

 WWDC22 Student Challenge Accepted 🎉

Endless Asteroids in Swift Playground App Gameplay Demo

Feature

1. Asteroids

☄️ Asteroids are target to shoot. When you hit by Asteroids, you lose 1 life

Movement

Asteroids are spawned with random position & movement direciton every beginning of waves. If asteroids goes out of screen, it appears at opposite side of screen.
i.e. When asteroid goes off screen at right-top point, it appears at left-bottom of screen again

Hit & Split

There's 3 types of Asteroids: Big Midium Small. When asteroid get hit by bullet, it usually splits into two smaller types of asteroids and in case of small asteroid (which is smallest one), it vanished.

When Asteroid is splited, thier moving direction also changes randomly in 3 types: Horizontal Right Up Right Down From graph above, (a,b) is direction of existing asteroid

2. Waves

🌊 When you destroys all asteroids, you will face harder tiral...

Wen player destroys all asteroids, next wave with more and faster asteroids is comming. Speed and number of asteroids are decided by internal formula. Thus, there are endless wave.

3. Power Ups

🔋 The more waves you beat, the more difficult waves are comming. You should be stronger with these Power Ups

You can get Power Ups when you beat wave (100%) or hit astroid (with low chance)

Fire Faster Once you shot bullet, you need to wait until gun is reloaded. Makes you to fire faster. This reduce delay between shoots.

1 more Life Getting hit by asteroids is inevitable. Recharge more life as much as you can and prepare for harder wave

4. HUD & Visual Effects

HUD

Score & Life | Asteroids Left | Backlog

Score & Life Display current Score & Life left
Asteroids Left Display number of Asteroid left. Bacuse some asteroid split into 2 when get hit, usually number of asteroid increses
Backlog Notice events to user Wave Starts Get Power Ups

Visual Effects

Loaded | Explosion

Loaded Ship color represents bullet availability. White-> Can shoot / Black -> Need to wait
Explosion Notice every Asteroid Collision (Hit by bullet, hit ship, Destroyed) using explosion effect

Installation

Download playground app from here

1. Using iPad Swift Playgrounds

Download Asteroid.swiftpm. If you are not downloded from iPad, put this file into iPad
Download Swift Playground from App Store and open.
Tap "Location" (It's on Top left of playground app)
Navigate and Select Asteroid.swiftpm
Tap "Asteroid" from main screen (aka my playgrounds)
Tap ▶︎

2. Using Xcode

Download Asteroid.swiftpm
Run project using iPad Device or Simulator

Coordinates for Sprite

Asteroids, Ship, Bullet, Explosion are all Vector Image

Asteroids - 3 types of shapes
Ship
Explosion Animation destination coordinates

Minimum Requirements

This app is developed for iPad

iPadOS 15
MacOS 15

Tech Stack

SpriteKit
Swift 5

External Source

Item Sprite: SF Symbols
Sound Effect: Free Arcade Sound Effects from mixkit

And...

If you get higher score, leave PR

ChoiysApple / Asteroids-Plus