Description

This library provides a buffer type, RenderBuffer, which can be used as a render target for Piston's graphics library. This buffer can be loaded from and/or saved to a file on disk. This allows for things like screenshots in games.

Usage

Add this to your cargo.toml :

toml graphics_buffer = "0.1.0" piston2d-graphics = "0.26.0"

Here is a simple example that draws three circles and saves the image to a file:

```rust extern crate graphics; extern crate graphics_buffer;

use graphics::ellipse; use graphics_buffer::*;

fn main() { // Create a new RenderBuffer let mut buffer = RenderBuffer::new(100, 100); buffer.clear([0.0, 0.0, 0.0, 0.0]);

// Big red circle
ellipse(
    [1.0, 0.0, 0.0, 0.7],
    [0.0, 0.0, 100.0, 100.0],
    identity(),
    &mut buffer,
);
// Small blue circle
ellipse(
    [0.0, 0.0, 1.0, 0.7],
    [0.0, 0.0, 50.0, 50.0],
    identity(),
    &mut buffer,
);
// Small green circle
ellipse(
    [0.0, 1.0, 0.0, 0.7],
    [50.0, 50.0, 50.0, 50.0],
    identity(),
    &mut buffer,
);

// Save the buffer
buffer.save("circles.png").unwrap();

} ```

Contributing

Feel free to open an issue or PR if you want to contribute. There are definitely places for improvement, especially in the rendering code.