use bevy::prelude::*;

const DIS: f32 = 300.0;
const SIZE: f32 = 20.0;
const HEIGHT: f32 = 400.0;

pub fn spawn_columns(
    commands: &mut Commands,
    meshes: &mut Assets<Mesh>,
    materials: &mut Assets<StandardMaterial>,
) {
    let mut column_material: StandardMaterial = Color::rgb(0.7, 0.7, 0.7).into();
    column_material.metallic = 0.0;
    column_material.reflectance = 0.0;
    let column_material = materials.add(column_material);
    let col_mesh = meshes.add(Mesh::from(shape::Box::new(SIZE, HEIGHT, SIZE)));
    for i in -8..8 {
        for j in -8..8 {
            commands.spawn_bundle(PbrBundle {
                mesh: col_mesh.clone(),
                material: column_material.clone(),
                transform: Transform::from_xyz(i as f32 * DIS, HEIGHT / 2.0, j as f32 * DIS),
                ..Default::default()
            });
        }
    }
}