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B O U N C E B A C K

A Boomerang Roguelite Game for JS13k by Frank Force

PLAY BOUNCE BACK!

Game Design Postmortem

Controls

• WASD = Move
• Mouse = Aim
• Click = Throw
• Space = Dash

Hints

• Boosting protects you from damage.
• Buy items to help you survive.
• You don't lose money when you die!
• There are only 10 levels.
• Lost boomerangs show up big on the map.
• Enemies are slowed by sand.
• Yellow boormang can grab pickups.
• Blue boomerang does double damage.
• Win to unlock speed run mode.

Game Features

• Boomerang physics & boost ability
• Procedural level generation
• 3 Enemy types
• 7 types of pickups
• Giant and invisible enemy variants
• Final boss battle
• Saves gems earned and max level reached
• Shop system for buying items
• Minimap
• Footsteps, blood, and persistant effects system
• 16 Different sound effects with zzfx
• Procedurally generated music
• Speed run mode doesn't effect normal save
• Low health warning system
• Level transition effect

Engine Features

• Engine is separated from game code
• Object oriented architecture
• 2D game object system with pseudo 3D
• Physics and level tile collision
• Tile rendering system
• Cached level rendering
• Particle system
• 3D shadows
• Input processing system
• Debug rendering system

Engine Debug Features

• Debug console
• Debug rendering
• Debug controls
• Save snapshot

Minification Notes

• The official release is under 13k for the game, engine, art and music!
• The tile.png file has 14 color palette exported from Gimp with all extra save data disabled
• First combine all javascript together
• Remove all debug code, godMode, soundEnable, and controls description
• Use Google Closure on Advanced https://closure-compiler.appspot.com/home
• Use terser with extra compression turned off https://xem.github.io/terser-online/
• Put eveything into the same html file and remove any whitespace
• Zip the index.html and tiles.png files
• Zip the zip with advzip using the settings "-z -4 -i 1000" https://github.com/amadvance/advancecomp
• Say a small prayer to the gods of JavaScript
• The final result should hopefully be under 13k!