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use std::{str::FromStr, sync::Mutex};
use bevy::prelude::*;
use bevy_mod_scripting::api::providers::bevy_reflect::LuaVec3;
use bevy_mod_scripting::{api::providers::bevy_ecs::LuaEntity, lua::tealr::mlu::mlua::Error as LuaError};
use bevy_mod_scripting::lua::LuaEvent;
use bevy_mod_scripting::prelude::*;
use uuid::Uuid;
use crate::{components::DirworldEntity, conditionals::Condition};
pub fn trigger_update(mut w: PriorityEventWriter<LuaEvent<()>>) {
let event = LuaEvent::<()> {
args: (),
hook_name: "on_update".into(),
recipients: Recipients::All,
};
w.send(event, 0);
}
// ACTUAL API STUFF BELOW THIS POINT {{{
macro_rules! register_fns {
($runtime:expr, $($function:expr),+) => {
{
let ctx = $runtime.get_mut().unwrap();
$(ctx.globals().set(stringify!($function).to_string(), ctx.create_function($function).unwrap()).unwrap();)+
}
};
}
pub fn register(api: &mut Mutex<Lua>) {
register_fns!(
api,
translate,
rotate,
get_dirworld_id,
condition_true,
condition_ancestor_of,
condition_descendant_of,
condition_parent_of,
condition_child_of,
condition_in_room,
condition_object_in_room
)
}
fn translate(ctx: &Lua, (entity, translation): (LuaEntity, LuaVec3)) -> Result<(), LuaError> {
let world = ctx.get_world()?;
let mut world = world.write();
if let Some(mut transform) = world.entity_mut(entity.inner().unwrap()).get_mut::<Transform>() {
transform.translation += translation.inner().unwrap();
}
Ok(())
}
fn rotate(ctx: &Lua, (entity, axis, angle): (LuaEntity, LuaVec3, f32)) -> Result<(), LuaError> {
let world = ctx.get_world()?;
let mut world = world.write();
if let Some(mut transform) = world.entity_mut(entity.inner().unwrap()).get_mut::<Transform>() {
transform.rotation *= Quat::from_axis_angle(axis.inner().unwrap(), angle);
}
Ok(())
}
fn get_dirworld_id(ctx: &Lua, (entity,): (LuaEntity,)) -> Result<String, LuaError> {
let world = ctx.get_world()?;
let world = world.read();
if let Some(dirworld_entity) = world.entity(entity.inner().unwrap()).get::<DirworldEntity>() {
dirworld_entity.payload.as_ref().map(|p| p.id.to_string()).ok_or(LuaError::runtime("Failed to get entity id from payload"))
} else {
Err(LuaError::runtime("Entity missing DirworldEntity component"))
}
}
// Conditionals
pub struct ConditionalAPI;
impl APIProvider for ConditionalAPI {
type APITarget = Mutex<Lua>;
type ScriptContext = Mutex<Lua>;
type DocTarget = LuaDocFragment;
fn attach_api(
&mut self,
api: &mut Self::APITarget,
) -> Result<(), bevy_mod_scripting::prelude::ScriptError> {
register(api);
Ok(())
}
}
fn condition_true(ctx: &Lua, _: ()) -> Result<bool, LuaError> {
let world = ctx.get_world()?;
let mut world = world.write();
Ok(Condition::True.evaluate(&mut world))
}
fn condition_ancestor_of(ctx: &Lua, (ancestor, descendant): (String, String)) -> Result<bool, LuaError> {
let world = ctx.get_world()?;
let mut world = world.write();
let Ok(ancestor) = Uuid::from_str(&ancestor) else {
warn!("Provided ancestor is not a valid UUID");
return Ok(false);
};
let Ok(descendant) = Uuid::from_str(&descendant) else {
warn!("Provided descendant is not a valid UUID");
return Ok(false);
};
Ok(Condition::AncestorOf {
ancestor,
descendant,
}.evaluate(&mut world))
}
fn condition_descendant_of(ctx: &Lua, (descendant, ancestor): (String, String)) -> Result<bool, LuaError> {
let world = ctx.get_world()?;
let mut world = world.write();
let Ok(ancestor) = Uuid::from_str(&ancestor) else {
warn!("Provided ancestor is not a valid UUID");
return Ok(false);
};
let Ok(descendant) = Uuid::from_str(&descendant) else {
warn!("Provided descendant is not a valid UUID");
return Ok(false);
};
Ok(Condition::DescendantOf {
ancestor,
descendant,
}.evaluate(&mut world))
}
fn condition_parent_of(ctx: &Lua, (parent, child): (String, String)) -> Result<bool, LuaError> {
let world = ctx.get_world()?;
let mut world = world.write();
let Ok(parent) = Uuid::from_str(&parent) else {
warn!("Provided ancestor is not a valid UUID");
return Ok(false);
};
let Ok(child) = Uuid::from_str(&child) else {
warn!("Provided descendant is not a valid UUID");
return Ok(false);
};
Ok(Condition::ParentOf {
parent,
child,
}.evaluate(&mut world))
}
fn condition_child_of(ctx: &Lua, (child, parent): (String, String)) -> Result<bool, LuaError> {
let world = ctx.get_world()?;
let mut world = world.write();
let Ok(parent) = Uuid::from_str(&parent) else {
warn!("Provided ancestor is not a valid UUID");
return Ok(false);
};
let Ok(child) = Uuid::from_str(&child) else {
warn!("Provided descendant is not a valid UUID");
return Ok(false);
};
Ok(Condition::ChildOf {
parent,
child,
}.evaluate(&mut world))
}
fn condition_in_room(ctx: &Lua, (room,): (String,)) -> Result<bool, LuaError> {
let world = ctx.get_world()?;
let mut world = world.write();
let Ok(room) = Uuid::from_str(&room) else {
warn!("Provided room is not a valid UUID");
return Ok(false);
};
Ok(Condition::InRoom(room).evaluate(&mut world))
}
fn condition_object_in_room(ctx: &Lua, (object,): (String,)) -> Result<bool, LuaError> {
let world = ctx.get_world()?;
let mut world = world.write();
let Ok(object) = Uuid::from_str(&object) else {
warn!("Provided object is not a valid UUID");
return Ok(false);
};
Ok(Condition::ObjectInRoom(object).evaluate(&mut world))
}
// }}}
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