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:space_invader: Space Invaders 2d game with Ruby/Gosu

License: MIT License

Ruby 99.74% Shell 0.26%

space-invaders game ruby-gem gosu

space-invaders's Introduction

Classic Space Invaders Game

Features

Player moves ship horizontally by pressing on keyboard ✔️
Player shoot aliens, which can move horizontally & vertically ✔️
When bullet reach alien, alien disappear & total score increase ✔️
Aliens can shoot too. When alien hit player, his lives decrease ✔️
Player can hide behind obstacles
Game ends when player lives become 0 ✔️
Game has record table ✔️
Game has sounds effects ✔️

Demo

demo.mov

Installation

Launch

ruby lib/space_invaders.rb

Other resources

space-invaders's People

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space-invaders's Issues

Replace Mongo by SQLite

It's better use that tools which is widely supported and won't require install additional deps.

Specs

Project require to be tested. Now all features blindly injected.

Release

Prepare project to release on RubyGems.

Game Levels

Game has only one repeated level, implementing other ones would be great.

CI

Setup Github Actions for running specs wouldn't be bad option.

it crashes due to a NoMethodError

Hi,
am I too fast?

space-invaders-master/lib/space_invaders/game_objects/image_objects/ship.rb:100:in block in retarget_gun!': undefined method x' for nil:NilClass (NoMethodError)

    bullet.target = @enemies.find(bullet.target.x)
                                               ^^
from space-invaders-master/lib/space_invaders/game_objects/image_objects/ammo.rb:52:in `block in bullets_without_target'
from space-invaders-master/lib/space_invaders/game_objects/image_objects/ammo.rb:52:in `each'
from space-invaders-master/lib/space_invaders/game_objects/image_objects/ammo.rb:52:in `bullets_without_target'
from space-invaders-master/lib/space_invaders/game_objects/image_objects/ship.rb:99:in `retarget_gun!'
from space-invaders-master/lib/space_invaders/game_objects/image_objects/ship.rb:71:in `draw'
from space-invaders-master/lib/space_invaders/scenes/main_scene.rb:50:in `each'
from space-invaders-master/lib/space_invaders/scenes/main_scene.rb:50:in `draw'
from space-invaders-master/lib/space_invaders/game.rb:21:in `draw'
from /usr/local/lib/ruby/gems/3.1.0/gems/gosu-1.4.3/lib/gosu/patches.rb:64:in `tick'
from lib/space_invaders.rb:6:in `<main>'

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