https://github.com/dylhunn/simple-love-lights

A simple raycasting light/shadow library for Love2D.
https://github.com/dylhunn/simple-love-lights

Last synced: about 2 months ago
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A simple raycasting light/shadow library for Love2D.

• Host: GitHub
• URL: https://github.com/dylhunn/simple-love-lights
• Owner: dylhunn
• License: mit
• Created: 2018-01-17T18:39:34.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2020-03-24T11:11:46.000Z (over 4 years ago)
• Last Synced: 2024-10-04T12:53:21.883Z (2 months ago)
• Language: Lua
• Size: 292 KB
• Stars: 26
• Watchers: 4
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-love2d - Simple Love Lights - A very simple raycasting light implementation. (Lighting)

README

        
# SIMPLE LOVE LIGHTS

This is a very simple implementation of [mattdesl's *Pixel Perfect 2D Shadows*](https://github.com/mattdesl/lwjgl-basics/wiki/2D-Pixel-Perfect-Shadows) in Love2d/Lua. The code is simple and easy to understand. It is useful for applications that need bare-bone 2D raycasted lights and shadows. (No advanced features, such as normal maps, are provided.)

This was built and tested with Love 0.10.2. 

# API

```

addLight(x, y, size, r, g, b)

clearLights()

```

From your `love.draw()` function, you **must** call the provided function `drawLights(drawOccludersFn, coordTransX, coordTransY)`. `drawOccludersFn` is a callback that draws all shadow-casting objects in the scene. (I recommend you store this in a variable, and then call it a second time from `love.draw()` to actually draw the objects.)

# Examples

![Simple Love Lights example image](example.png)