Crapper: A 2D Game Engine in Go

Crapper is a lightweight, crappy 2D game engine written in Go, leveraging Ebiten for rendering. Its goal is to provide essential game development functionality while maintaining a clean, modular architecture for building cross-platform 2D games.

Features

• Entity-Component System: Flexible object composition
• Physics: Collision detection and resolution
• Path Finding: A* and Dijkstra's algorithms
• Vector Math: Comprehensive 2D vector operations
• Event System: Decoupled communication between systems
• Animation: Sprites, spritesheets and animations
• Resource Management: Efficient asset loading and caching
• Input Handling: Keyboard, mouse, and gamepad support
• Scene Management: Organize game objects and logic

Todo List

General

• Implement vector math operations and utilities
• Set up basic project structure
• Main game object
• Create and manage scenes
• Transition between scenes
• Entity creator template
• Camera

Algorithms

• Heuristic functions
• Develop node and priority queue systems for path finding
• Implement A* algorithm
• Implement Dijkstra's algorithm
• Collision detection

Components

• Position
• Velocity
• Acceleration
• Size
• Sprite
• AnimatedSprite
• UserInput
• MouseClickFollow
• Health
• Collision
• Targeting

Systems

Split by responsibility, not by mechanism.

• Interface
• Movement
  • Acceleration
  • Velocity
  • MouseClickFollow
• Debug
• Rendering
  • Sprite
  • AnimatedSprites
  • HealthBar
• UserInput
• Health
• TargetAcquisition
  • Multi layer

Assets

• SpriteManager
• SpriteSheetManager

Getting Started

package main

import (
    "github.com/seppedelanghe/crapper/pkg/engine/core"
)

func main() {
	gameOpts := game.GameOptions{
		Width: 640,
		Height: 480,
		Vsync: true,
		WindowResize: false,
	}
    game := core.NewGame()

    // Configure your game...

    if err := game.Run(); err != nil {
        panic(err)
    }
}