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Add move sprite example. (#2414)
## Objective There is no bevy example that shows how to transform a sprite. At least as its singular purpose. This creates an example of how to use transform.translate to move a sprite up and down. The last pull request had issues that I couldn't fix so I created a new one ### Solution I created move_sprite example. Co-authored-by: Carter Anderson <mcanders1@gmail.com>
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@ -119,6 +119,10 @@ path = "examples/2d/contributors.rs"
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name = "many_sprites"
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path = "examples/2d/many_sprites.rs"
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[[example]]
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name = "move_sprite"
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path = "examples/2d/move_sprite.rs"
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[[example]]
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name = "2d_rotation"
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path = "examples/2d/rotation.rs"
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41
examples/2d/move_sprite.rs
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41
examples/2d/move_sprite.rs
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@ -0,0 +1,41 @@
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use bevy::prelude::*;
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fn main() {
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App::new()
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.add_plugins(DefaultPlugins)
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.add_startup_system(setup)
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.add_system(sprite_movement)
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.run();
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}
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#[derive(Component)]
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enum Direction {
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Up,
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Down,
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}
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fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
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commands.spawn_bundle(OrthographicCameraBundle::new_2d());
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commands
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.spawn_bundle(SpriteBundle {
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texture: asset_server.load("branding/icon.png"),
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transform: Transform::from_xyz(100., 0., 0.),
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..Default::default()
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})
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.insert(Direction::Up);
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}
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fn sprite_movement(time: Res<Time>, mut sprite_position: Query<(&mut Direction, &mut Transform)>) {
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for (mut logo, mut transform) in sprite_position.iter_mut() {
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match *logo {
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Direction::Up => transform.translation.y += 150. * time.delta_seconds(),
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Direction::Down => transform.translation.y -= 150. * time.delta_seconds(),
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}
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if transform.translation.y > 200. {
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*logo = Direction::Down;
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} else if transform.translation.y < -200. {
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*logo = Direction::Up;
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}
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}
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}
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@ -84,6 +84,7 @@ Example | File | Description
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--- | --- | ---
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`contributors` | [`2d/contributors.rs`](./2d/contributors.rs) | Displays each contributor as a bouncy bevy-ball!
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`many_sprites` | [`2d/many_sprites.rs`](./2d/many_sprites.rs) | Displays many sprites in a grid arragement! Used for performance testing.
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`move_sprite` | [`2d/move_sprite.rs`](./2d/move_sprite.rs) | Changes the transform of a sprite.
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`mesh2d` | [`2d/mesh2d.rs`](./2d/mesh2d.rs) | Renders a 2d mesh
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`mesh2d_manual` | [`2d/mesh2d_manual.rs`](./2d/mesh2d_manual.rs) | Renders a custom mesh "manually" with "mid-level" renderer apis.
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`rect` | [`2d/rect.rs`](./2d/rect.rs) | Renders a rectangle
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