51 lines
1.6 KiB
Rust
51 lines
1.6 KiB
Rust
use bevy::prelude::*;
|
|
|
|
fn main() {
|
|
App::build()
|
|
.add_default_plugins()
|
|
.add_startup_system(setup.system())
|
|
.add_system(animate_sprite_system.system())
|
|
.run();
|
|
}
|
|
|
|
fn animate_sprite_system(
|
|
sprite_sheets: Res<Assets<SpriteSheet>>,
|
|
mut timer: ComMut<Timer>,
|
|
mut sprite: ComMut<SpriteSheetSprite>,
|
|
sprite_sheet_handle: Com<Handle<SpriteSheet>>,
|
|
) {
|
|
if timer.finished {
|
|
let sprite_sheet = sprite_sheets.get(&sprite_sheet_handle).unwrap();
|
|
sprite.index = ((sprite.index as usize + 1) % sprite_sheet.sprites.len()) as u32;
|
|
timer.reset();
|
|
}
|
|
}
|
|
|
|
fn setup(
|
|
command_buffer: &mut CommandBuffer,
|
|
asset_server: Res<AssetServer>,
|
|
mut textures: ResMut<Assets<Texture>>,
|
|
mut sprite_sheets: ResMut<Assets<SpriteSheet>>,
|
|
) {
|
|
env_logger::init();
|
|
let texture_handle = asset_server
|
|
.load_sync(&mut textures, "assets/textures/character_run.png")
|
|
.unwrap();
|
|
let texture = textures.get(&texture_handle).unwrap();
|
|
let sprite_sheet = SpriteSheet::from_grid(texture_handle, texture.size, 7, 1);
|
|
let sprite_sheet_handle = sprite_sheets.add(sprite_sheet);
|
|
command_buffer
|
|
.build()
|
|
.add_entity(OrthographicCameraEntity::default())
|
|
.add_entity(SpriteSheetEntity {
|
|
sprite_sheet: sprite_sheet_handle,
|
|
sprite: SpriteSheetSprite {
|
|
index: 0,
|
|
scale: 6.0,
|
|
position: Vec3::new(0.0, 0.0, -0.5),
|
|
},
|
|
..Default::default()
|
|
})
|
|
.add(Timer::from_seconds(0.1));
|
|
}
|