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move_tile.rs
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move_tile.rs
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use bevy::prelude::*;
use bevy_ecs_tilemap::prelude::*;
mod helpers;
fn startup(mut commands: Commands, asset_server: Res<AssetServer>) {
commands.spawn(Camera2dBundle::default());
let texture_handle: Handle<Image> = asset_server.load("tiles.png");
let map_size = TilemapSize { x: 2, y: 1 };
// Create a tilemap entity a little early.
let tilemap_entity = commands.spawn_empty().id();
let mut tile_storage = TileStorage::empty(map_size);
// Spawn the elements of the tilemap.
let tile_pos = TilePos { x: 0, y: 0 };
let tile_entity = commands
.spawn(TileBundle {
position: tile_pos,
tilemap_id: TilemapId(tilemap_entity),
..Default::default()
})
.id();
tile_storage.set(&tile_pos, tile_entity);
let tile_size = TilemapTileSize { x: 16.0, y: 16.0 };
let grid_size = tile_size.into();
let map_type = TilemapType::default();
commands.entity(tilemap_entity).insert(TilemapBundle {
grid_size,
map_type,
size: map_size,
storage: tile_storage,
texture: TilemapTexture::Single(texture_handle),
tile_size,
transform: get_tilemap_center_transform(&map_size, &grid_size, &map_type, 0.0),
..Default::default()
});
}
fn swap_pos(keyboard_input: Res<Input<KeyCode>>, mut query: Query<&mut TilePos>) {
if keyboard_input.just_pressed(KeyCode::Space) {
for mut pos in query.iter_mut() {
if pos.x == 0 {
pos.x = 1;
} else {
pos.x = 0;
}
}
}
}
fn main() {
App::new()
.add_plugins(
DefaultPlugins
.set(WindowPlugin {
primary_window: Some(Window {
title: String::from("Update tile positions without despawning."),
..Default::default()
}),
..default()
})
.set(ImagePlugin::default_nearest()),
)
.add_plugins(TilemapPlugin)
.add_systems(Startup, startup)
.add_systems(Update, helpers::camera::movement)
.add_systems(Update, swap_pos)
.run();
}