rake/src/world.rs

use bevy::prelude::*;
use bevy_rapier3d::rapier::{dynamics::RigidBodyBuilder, geometry::ColliderBuilder};

pub struct WorldPlugin;

impl Plugin for WorldPlugin {
  fn build(&self, app: &mut AppBuilder) {
    app.add_startup_system(create_world.system());
  }
}

fn create_world(
  mut commands: Commands,
  mut meshes: ResMut<Assets<Mesh>>,
  mut materials: ResMut<Assets<StandardMaterial>>,
  asset_server: Res<AssetServer>,
) {
  // some boxes to help with orientation
  let box_mesh = meshes.add(Mesh::from(shape::Cube { size: 0.25 }));
  let box_material = materials.add(Color::rgb(1.0, 0.2, 0.3).into());
  const AMOUNT: i32 = 6;
  for x in -(AMOUNT / 2)..(AMOUNT / 2) {
    for y in -(AMOUNT / 2)..(AMOUNT / 2) {
      for z in -(AMOUNT / 2)..(AMOUNT / 2) {
        commands.spawn_bundle(PbrBundle {
          mesh: box_mesh.clone(),
          material: box_material.clone(),
          transform: Transform::from_translation(Vec3::new(x as f32, y as f32, z as f32)),
          ..Default::default()
        });
      }
    }
  }

  // a simple light
  commands.spawn_bundle(LightBundle {
    transform: Transform::from_translation(Vec3::new(4.0, 8.0, 4.0)),
    ..Default::default()
  });

  // create a floor
  let floor_texture_handle = materials.add(asset_server.load("textures/blocks17floor2.png").into());
  let rigid_body1 = RigidBodyBuilder::new_static();
  let collider1 = ColliderBuilder::cuboid(10.0, 0.1, 10.0);
  commands.spawn_bundle((rigid_body1, collider1));
  commands.spawn_bundle(PbrBundle {
    mesh: meshes.add(Mesh::from(shape::Plane { size: 20. })),
    material: floor_texture_handle,
    transform: Transform::from_translation(Vec3::new(0.0, 0.1, 0.0)),
    ..Default::default()
  });
}