everything is broken

engine/world_generation/src/lib.rs

@@ -1,5 +1,7 @@
 pub mod prelude {
+	use crate::hex_utils::HexCoord;
 	use bevy::math::IVec2;
+	use bevy::prelude::Resource;
 
 	pub struct GenerationConfig {
 		pub noise_scale: f64,
@@ -26,24 +28,33 @@ pub mod prelude {
 	impl Chunk {
 		pub const SIZE: usize = 32;
 	}
+
+	#[derive(Resource)]
 	pub struct Map {
 		pub chunks: Vec<Chunk>,
 		pub height: usize,
 		pub width: usize,
 	}
+
+	impl Map {
+		pub fn get_neighbors(&self, pos: &HexCoord) -> [Option<f32>; 6] {
+			let mut results: [Option<f32>; 6] = [None; 6];
+			let n_tiles = pos.get_neighbors();
+			for i in 0..6 {
+				let n_tile = n_tiles[i];
+				if !n_tile.is_in_bounds(self.height, self.width) {
+					continue;
+				}
+				let c_idx = n_tile.to_chunk_index(self.width);
+				let chunk = &self.chunks[c_idx as usize];
+				let local = n_tile.to_chunk_local_index();
+				results[i] = (Some(chunk.points[local as usize]));
+			}
+			return results;
+		}
+	}
 }
 
 pub mod heightmap;
 pub mod hex_utils;
 pub mod mesh_generator;
-
-#[cfg(test)]
-mod tests {
-	use super::*;
-
-	// #[test]
-	// fn it_works() {
-	//     let result = add(2, 2);
-	//     assert_eq!(result, 4);
-	// }
-}