bevy-parallax

A parallax plugin for the Bevy Engine. This plugin allows you to easily create scrolling parallax backgrounds for your games.

cyberpunk

fishy

Usage

```rust use bevy::{prelude::*, render::texture::ImageSettings}; use bevy_parallax::{ LayerData, ParallaxCameraComponent, ParallaxMoveEvent, ParallaxPlugin, ParallaxResource, };

fn main() { let window = WindowDescriptor { title: "Window Name".to_string(), width: 1280.0, height: 720.0, resizable: false, ..Default::default() };

App::new()
    .insert_resource(window)
    // Use nearest filtering so pixel art renders clear
    .insert_resource(ImageSettings::default_nearest())
    .insert_resource(ParallaxResource {
        layer_data: vec![
            LayerData {
                speed: 0.9,
                path: "back.png".to_string(),
                tile_size: Vec2::new(96.0, 160.0),
                cols: 1,
                rows: 1,
                scale: 4.5,
                z: 0.0,
                ..Default::default()
            },
            LayerData {
                speed: 0.6,
                path: "middle.png".to_string(),
                tile_size: Vec2::new(144.0, 160.0),
                cols: 1,
                rows: 1,
                scale: 4.5,
                z: 1.0,
                ..Default::default()
            },
            LayerData {
                speed: 0.1,
                path: "front.png".to_string(),
                tile_size: Vec2::new(272.0, 160.0),
                cols: 1,
                rows: 1,
                scale: 4.5,
                z: 2.0,
                ..Default::default()
            },
        ],
        ..Default::default()
    })
    .add_plugins(DefaultPlugins)
    .add_plugin(ParallaxPlugin)
    .add_startup_system(initialize_camera_system)
    .add_system(move_camera_system)
    .run();

}

pub fn initializecamerasystem(mut commands: Commands) { commands .spawn_bundle(Camera2dBundle::default()) .insert(ParallaxCameraComponent); }

pub fn movecamerasystem( keyboardinput: Res>, mut moveeventwriter: EventWriter, ) { if keyboardinput.pressed(KeyCode::D) || keyboardinput.pressed(KeyCode::Right) { moveeventwriter.send(ParallaxMoveEvent { cameramovespeed: 3.0, }); } else if keyboardinput.pressed(KeyCode::A) || keyboardinput.pressed(KeyCode::Left) { moveeventwriter.send(ParallaxMoveEvent { cameramove_speed: -3.0, }); } } ```

Credits