ray_engine

A toy raycasting engine built with Go + Ebiten v2 2D library

Heavily based on 3DSage fantastic Youtube videos of a C/OpenGL raycasting engine

Gun mode ! (old version of the engine with scaling issues)

2D map rendered in 3D

CRT scanlines

Build & run

Build with Go 1.16 and Ebiten v2 on Linux/macOS

 go build
./ray_engine

Keymaps

Arrows keys or ZSQD (Azerty) : Move

'i' : debug info toogle

'f' : fullscreen toogle

'l' : scanlines

'm' : Gun mode

'k' : quit

Features, todos and idea box

• Port to Ebiten v2
• Proper collisions
• UI
• Scale map to 16x16
• 2D minimap for gun mode
• Add basic floor/ceiling - Just a matching png for now
• Binary textures wip
• Up/down parallax/Y-xhearing
• Ebiten Audio mp3 sound support
• Weapon swap/shield
• Proper ballistics - Rough prototype
• Cube destruction/basic enemies - Rough prototype
• Rebuild the 2D map (where actual raycasting is done) to fit the screen

Known bugs

• Enemies are seen through walls

Assets

Gun from Destiny 2 screenshot by Bungie