nil-core 0.6.10

Multiplayer strategy game
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56

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

use crate::bail_if_cheats_are_not_allowed;
use crate::city::City;
use crate::city::stability::Stability;
use crate::continent::field::Field;
use crate::continent::index::ContinentKey;
use crate::error::{Error, Result};
use crate::ruler::Ruler;
use crate::world::World;

pub fn get_city(world: &World, key: impl ContinentKey) -> Result<&City> {
  bail_if_cheats_are_not_allowed!(world);
  world.continent.city(key)
}

pub fn set_stability(
  world: &mut World,
  key: impl ContinentKey,
  stability: Stability,
) -> Result<()> {
  bail_if_cheats_are_not_allowed!(world);

  let coord = key.into_coord(world.continent.size())?;
  let city = world.city_mut(coord)?;
  *city.stability_mut() = stability;

  world.emit_city(coord)?;

  Ok(())
}

pub fn spawn_city(world: &mut World, ruler: &Ruler, key: impl ContinentKey) -> Result<()> {
  bail_if_cheats_are_not_allowed!(world);

  let coord = key.into_coord(world.continent.size())?;
  let city = City::builder(coord)
    .name(<Ruler as AsRef<str>>::as_ref(ruler))
    .owner(ruler.clone())
    .build();

  let field = world.continent.field_mut(coord)?;
  if field.is_empty() {
    *field = Field::City { city: Box::new(city) };
    world.emit_public_city(coord)?;

    if let Some(player) = ruler.player() {
      world.emit_player(player.clone())?;
    }
  } else {
    return Err(Error::FieldNotEmpty(coord));
  }

  Ok(())
}