Ranger-Go-IGE

README

Ranger-Go-IGE

Ranger-Go-IGE (IGE) is a continuation of RangerGO.

As was RangerGo, so is IGE, a variation of the Ranger Dart game engine but written in Go but using OpenGL and GLFW.

This version is the great merging of RangerGo, RangerGo-GLFW and Ranger-Alpha.

Video demos

Gif of c4_lava example

Gif was made using ffmpeg -i c4_lava.mkv -r 30 -vf scale=512:-1 c4_lava.gif

mkv version of video is in docs folder.

Audio

Games

• Port Spout (standard)
• Spout custom. In this verion instead of particles for the obstacles the obstacles are outlined with a polygon. The poly is updated when part of the obstacle is destroyed.
• Port StarCastle / Star Barriers
• Port Bosconian
• Port Omega Race
• Port 2048
• Create New Game. A blend of Lunar Lander (Sky and Landings), Moon Patrol (Ground), Atari Pitfall (Obstacles), Defender (Rescue). Multi-planet and Moons.
• Create a 1946 shooter like clone.
• Create a BurgerTime like clone.

Demos

• Combine vector fonts with tweening and physics. The text rotates and then randomly falls to the ground. Then the text moves back inline using tweening.
• A triangle spaceship (with particle exhaust) that can fly around and shoot characters. The chars bounce off walls like asteroids.
• A qix like demo where lines move around the view. Each end point bounces off the walls.
• Particle system demo(s)
• Infinite side-scrolling demo. A UFO can move left/right forever. The terrain is procedurally generated using One-Lone-Coder's algorithm.
  • https://www.youtube.com/watch?v=ZZY9YE7rZJw
• Infinite scrolling demo using a top-down view. Again using OLC's algorithm. In this demo you can "drive" over a terrain and encounter different objects.
• 2D Light shadows.

Tools/Apps

• Sfxr
• Sprite editor
• SVG to Vector font converter
  • https://github.com/JoshVarga/svgparser
  • https://github.com/rustyoz/svg
  • https://play.golang.org/p/kyfff6Kg1c implements parser xml interface (Nice)
• Vector Editor

Current Tasks and Goals

• OpenGL 4.x Core
• Pixel Font (Slow version)
• Pixel Font (Faster version)
• Static shapes: Circle
• Dynamic shapes: Line
• Space mappings
• add Outline shapes
• Alpha coloring / transparency
• Node Dragging
• Zoom Node
• Filters: transform and translate
• Particles
• Animation (tweening) Using tanema's library: https://github.com/tanema/gween
• Box2D physics (with space ship). Uses: https://github.com/ByteArena/box2d
• Zones combined with Zoom
• Interpolation
• Sprite Textures (quads)
• Scene Transitioning
• Bitmap fonts
• Simple motion animations
• Audio (SFXR 8bit sound: https://sfxr.me/) (However, 16bit stills needs completion)
  • built GUI using imGui: https://github.com/inkyblackness/imgui-go
  • build using: https://github.com/faiface/beep
• working Custom vector font (needs lower case completion)
• Vector Fonts via SVG import
• Partial Completion QuadTrees
  • Example 1: Random spread of points/particles into tree (with capacity)
  • Example 2: Random spread of squares
  • Example 3: Insert squares at Mouse
  • Example 4: Triangle ship moving through tree
  • Example 5: Query and highlight tree according to obj-obj intersecting
• Improve Bitmap fonts. Rename current bitmap font object to "CharacterBitmapFont" and add new one called "StringBitmapFont". The new one creates a buffer of quads.
• Scripting via https://wren.io/ or make custom language using via http://craftinginterpreters.com/
• Simple Widget GUI framework
  • Buttons
  • Checkboxes
  • ListBox and Combo dropdowns
  • Inputs (text, float, int, bool)
  • Text
  • Dialogs (OK, Yes/No, etc.)
  • Grouping (i.e. Radio buttons)
• Batch rendering
• OpenGL ES (https://github.com/golang/go/wiki/Mobile)
• Physics with Textures
• Joysticks and Gamepads
• Shaders with interleved vertex/color, for example, checkboards
• Stippling with OpenGL patterns (aka advanced shaders)