doukutsu-rs/src/weapon/missile_launcher.rs

use crate::caret::CaretType;
use crate::common::Direction;
use crate::player::{Player, TargetPlayer};
use crate::shared_game_state::SharedGameState;
use crate::weapon::bullet::{Bullet, BulletManager};
use crate::weapon::{Weapon, WeaponLevel};

impl Weapon {
    pub(in crate::weapon) fn tick_missile_launcher(
        &mut self,
        player: &mut Player,
        player_id: TargetPlayer,
        bullet_manager: &mut BulletManager,
        state: &mut SharedGameState,
    ) {
        const BULLETS: [u16; 6] = [13, 14, 15, 16, 17, 18];

        if !player.controller.trigger_shoot() {
            return;
        }

        let btype = match self.level {
            WeaponLevel::Level1 => 13,
            WeaponLevel::Level2 => 14,
            WeaponLevel::Level3 => 15,
            WeaponLevel::None => unreachable!(),
        };

        match self.level {
            WeaponLevel::Level1 if bullet_manager.count_bullets_multi(&BULLETS, player_id) > 0 => {
                return;
            }
            WeaponLevel::Level2 if bullet_manager.count_bullets_multi(&BULLETS, player_id) > 1 => {
                return;
            }
            WeaponLevel::Level3 if bullet_manager.count_bullets_multi(&BULLETS, player_id) > 3 => {
                return;
            }
            _ => {}
        }

        if !self.consume_ammo(1) {
            self.draw_empty(state, player.x, player.y);
            return;
        }

        fn increment(weapon: &mut Weapon, bullet: &mut Bullet) {
            weapon.counter2 = (weapon.counter2 + 1) % 3;
            bullet.counter2 = weapon.counter2;
        }

        match player.direction {
            Direction::Left if player.up => {
                let mut bullet =
                    Bullet::new(player.x - 0x200, player.y - 0x1000, btype, player_id, Direction::Up, &state.constants);
                increment(self, &mut bullet);

                bullet_manager.push_bullet(bullet.clone());

                state.create_caret(player.x - 0x200, player.y - 0x1000, CaretType::Shoot, Direction::Left);

                if self.level == WeaponLevel::Level3 {
                    bullet.x = player.x - 0x600;
                    bullet.y = player.y;
                    increment(self, &mut bullet);
                    bullet_manager.push_bullet(bullet.clone());

                    bullet.x = player.x + 0x600;
                    increment(self, &mut bullet);
                    bullet_manager.push_bullet(bullet);
                }
            }
            Direction::Right if player.up => {
                let mut bullet =
                    Bullet::new(player.x + 0x200, player.y - 0x1000, btype, player_id, Direction::Up, &state.constants);
                increment(self, &mut bullet);

                bullet_manager.push_bullet(bullet.clone());

                state.create_caret(player.x + 0x200, player.y - 0x1000, CaretType::Shoot, Direction::Left);

                if self.level == WeaponLevel::Level3 {
                    bullet.x = player.x - 0x600;
                    bullet.y = player.y;
                    increment(self, &mut bullet);
                    bullet_manager.push_bullet(bullet.clone());

                    bullet.x = player.x + 0x600;
                    increment(self, &mut bullet);
                    bullet_manager.push_bullet(bullet);
                }
            }
            Direction::Left if player.down => {
                let mut bullet = Bullet::new(
                    player.x - 0x200,
                    player.y + 0x1000,
                    btype,
                    player_id,
                    Direction::Bottom,
                    &state.constants,
                );
                increment(self, &mut bullet);

                bullet_manager.push_bullet(bullet.clone());

                state.create_caret(player.x - 0x200, player.y + 0x1000, CaretType::Shoot, Direction::Left);

                if self.level == WeaponLevel::Level3 {
                    bullet.x = player.x - 0x600;
                    bullet.y = player.y;
                    increment(self, &mut bullet);
                    bullet_manager.push_bullet(bullet.clone());

                    bullet.x = player.x + 0x600;
                    increment(self, &mut bullet);
                    bullet_manager.push_bullet(bullet);
                }
            }
            Direction::Right if player.down => {
                let mut bullet = Bullet::new(
                    player.x + 0x200,
                    player.y + 0x1000,
                    btype,
                    player_id,
                    Direction::Bottom,
                    &state.constants,
                );
                increment(self, &mut bullet);

                bullet_manager.push_bullet(bullet.clone());

                state.create_caret(player.x + 0x200, player.y + 0x1000, CaretType::Shoot, Direction::Left);

                if self.level == WeaponLevel::Level3 {
                    bullet.x = player.x - 0x600;
                    bullet.y = player.y;
                    increment(self, &mut bullet);
                    bullet_manager.push_bullet(bullet.clone());

                    bullet.x = player.x + 0x600;
                    increment(self, &mut bullet);
                    bullet_manager.push_bullet(bullet);
                }
            }
            Direction::Left => {
                let mut bullet =
                    Bullet::new(player.x - 0xc00, player.y, btype, player_id, Direction::Left, &state.constants);
                increment(self, &mut bullet);

                bullet_manager.push_bullet(bullet.clone());

                state.create_caret(player.x - 0x1800, player.y, CaretType::Shoot, Direction::Left);

                if self.level == WeaponLevel::Level3 {
                    bullet.x = player.x;
                    bullet.y = player.y - 0x1000;
                    increment(self, &mut bullet);
                    bullet_manager.push_bullet(bullet.clone());

                    bullet.x = player.x - 0x800;
                    bullet.y = player.y - 0x200;
                    increment(self, &mut bullet);
                    bullet_manager.push_bullet(bullet);
                }
            }
            Direction::Right => {
                let mut bullet =
                    Bullet::new(player.x + 0xc00, player.y, btype, player_id, Direction::Right, &state.constants);
                increment(self, &mut bullet);

                bullet_manager.push_bullet(bullet.clone());

                state.create_caret(player.x + 0x1800, player.y, CaretType::Shoot, Direction::Left);

                if self.level == WeaponLevel::Level3 {
                    bullet.x = player.x;
                    bullet.y = player.y - 0x1000;
                    increment(self, &mut bullet);
                    bullet_manager.push_bullet(bullet.clone());

                    bullet.x = player.x + 0x800;
                    bullet.y = player.y - 0x200;
                    increment(self, &mut bullet);
                    bullet_manager.push_bullet(bullet);
                }
            }
            _ => {}
        }

        state.sound_manager.play_sfx(32)
    }
}