nil-core 0.5.5

Multiplayer strategy game
Documentation 
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// Copyright (C) Call of Nil contributors
// SPDX-License-Identifier: AGPL-3.0-only

use crate::error::Result;
use crate::player::{PlayerId, PlayerOptions};
use crate::resources::Resources;
use crate::world::{World, WorldOptions};

#[test]
fn take_resources_of() -> Result<()> {
  let mut world = WorldOptions::builder("World")
    .build()
    .to_world()?;

  let player = PlayerId::from("Player A");
  spawn(&mut world, &player)?;

  *world.player_mut(&player)?.resources_mut() = res(10_000);

  let mut buf = res(8000);

  world.take_resources_of(&player, &mut buf)?;
  assert_eq!(world.player(&player)?.resources(), &res(2_000));
  assert_eq!(buf, res(8000));

  world.take_resources_of(&player, &mut buf)?;
  assert_eq!(world.player(&player)?.resources(), &res(0));
  assert_eq!(buf, res(2_000));

  Ok(())
}

fn spawn(world: &mut World, id: &PlayerId) -> Result<()> {
  PlayerOptions::builder(id.clone())
    .build()
    .into_player()
    .spawn(world)
}

fn res(value: u32) -> Resources {
  Resources::splat(value)
}