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::battle::luck::Luck;
use crate::battle::{Battle, BattleResult};
use crate::error::Result;
use crate::infrastructure::prelude::BuildingLevel;
use crate::military::squad::Squad;
use crate::world::World;

impl World {
  pub fn simulate_battle(
    &self,
    attacker: &[Squad],
    defender: &[Squad],
    luck: Luck,
    wall: BuildingLevel,
  ) -> Result<BattleResult> {
    let wall_stats = (wall > BuildingLevel::ZERO)
      .then(|| self.stats.infrastructure.wall().get(wall))
      .transpose()?;

    Battle::builder()
      .attacker(attacker)
      .defender(defender)
      .luck(luck)
      .maybe_wall(wall_stats)
      .infrastructure_stats(&self.stats.infrastructure)
      .build()
      .result()
  }
}