//! Tile change events and pathfinding dirty chunk tracking.
//!
//! This module provides types for tracking tile modifications and
//! invalidating pathfinding data when terrain changes.

use bevy::prelude::*;
use bevy_platform::collections::HashSet;

#[derive(Message, Clone, Copy)]
pub struct TileChangedEvent {
    pub pos: IVec3,
}

#[derive(Resource, Default)]
pub struct PathfindingDirtyChunks {
    pub chunks: HashSet<IVec2>,
}