docs(examples): Add a demo

Cargo.toml

@@ -20,5 +20,5 @@ bevy_reflect = "^0.5.0"
 bevy_sprite = "^0.5.0"
 
 [dev-dependencies]
-bevy = { version = "^0.5.0", default-features = false, features = ["render", "bevy_wgpu", "x11"] }
+bevy = { version = "^0.5.0", default-features = false, features = ["render", "bevy_wgpu", "x11", "png"] }
 rstest = "^0.7.0" # Newer versions are incompatible with bevy 0.5

assets/README.md

@@ -0,0 +1,3 @@
+# Credits
+
+Coin by [La Red Games](https://laredgames.itch.io/gems-coins-free) (CC0)

examples/demo.rs

@@ -0,0 +1,47 @@
+use std::time::Duration;
+
+use bevy::prelude::*;
+
+use animism::*;
+
+#[bevy_main]
+fn main() {
+    App::build()
+        .add_plugins(DefaultPlugins)
+        .add_plugin(AnimationPlugin)
+        .add_startup_system(spawn_camera.system())
+        .add_startup_system(spawn_coin.system())
+        .run();
+}
+
+fn spawn_coin(
+    mut commands: Commands,
+    asset_server: Res<AssetServer>,
+    mut textures: ResMut<Assets<TextureAtlas>>,
+) {
+    let texture = asset_server.load("coin.png");
+    let texture_atlas = textures.add(TextureAtlas::from_grid(
+        texture,
+        Vec2::new(16.0, 16.0),
+        5,
+        1,
+    ));
+
+    let frame_duration = Duration::from_millis(100);
+
+    commands
+        .spawn_bundle(SpriteSheetBundle {
+            texture_atlas,
+            transform: Transform::from_scale(Vec3::splat(10.0)),
+            ..Default::default()
+        })
+        .insert(SpriteSheetAnimation::from_frames(
+            (0..5)
+                .map(|index| Frame::new(index, frame_duration))
+                .collect(),
+        ));
+}
+
+fn spawn_camera(mut commands: Commands) {
+    commands.spawn_bundle(OrthographicCameraBundle::new_2d());
+}