doukutsu-rs/src/scripting/doukutsu.rs

use lua_ffi::ffi::luaL_Reg;
use lua_ffi::{LuaObject, State, c_int};

use crate::scene::game_scene::GameScene;
use crate::scripting::LuaScriptingState;
use crate::shared_game_state::SharedGameState;

pub struct Doukutsu {
    pub ptr: *mut LuaScriptingState,
}

impl Doukutsu {
    pub fn new(ptr: *mut LuaScriptingState) -> Doukutsu {
        Doukutsu {
            ptr,
        }
    }

    unsafe fn lua_play_sfx(&self, state: &mut State) -> c_int {
        if let Some(index) = state.to_int(2) {
            let game_state = &mut (*(*self.ptr).state_ptr);

            game_state.sound_manager.play_sfx(index as u8);
        }

        0
    }

    unsafe fn lua_play_song(&self, state: &mut State) -> c_int {
        if let Some(index) = state.to_int(2) {
            let game_state = &mut (*(*self.ptr).state_ptr);
            let ctx = &mut (*(*self.ptr).ctx_ptr);

            let _ = game_state.sound_manager.play_song(index as usize, &game_state.constants, ctx);
        }

        0
    }

    unsafe fn lua_flag(&self, state: &mut State) -> c_int {
        if let Some(index) = state.to_int(2) {
            let game_state = &mut (*(*self.ptr).state_ptr);

            state.push(*game_state.game_flags.get(index.max(0) as usize).unwrap_or(&false));
        } else {
            state.push_nil();
        }

        1
    }
}

impl LuaObject for Doukutsu {
    fn name() -> *const i8 {
        c_str!("Doukutsu")
    }

    fn lua_fns() -> Vec<luaL_Reg> {
        vec![
            lua_method!("play_sfx", Doukutsu, Doukutsu::lua_play_sfx),
            lua_method!("play_song", Doukutsu, Doukutsu::lua_play_song),
        ]
    }
}