finally realized that bevy uses right handed coords

engine/world_generation/src/heightmap.rs

@@ -2,7 +2,6 @@ use core::f32;
 
 use bevy::math::{IVec2, UVec2};
 use bevy::prelude::{FloatExt, Vec2};
-use bevy::render::render_resource::encase::internal::BufferMut;
 use bevy::utils::default;
 use noise::{NoiseFn, SuperSimplex};
 use rayon::iter::{IntoParallelIterator, ParallelIterator};

engine/world_generation/src/hex_utils.rs

@@ -72,12 +72,12 @@ impl Display for HexCoord {
 
 impl HexCoord {
 	pub const DIRECTIONS: [IVec3; 6] = [
-		IVec3::new(1, -1, 0),
-		IVec3::new(1, 0, -1),
 		IVec3::new(0, 1, -1),
-		IVec3::new(-1, 1, 0),
-		IVec3::new(-1, 0, 1),
+		IVec3::new(1, 0, -1),
+		IVec3::new(1, -1, 0),
 		IVec3::new(0, -1, 1),
+		IVec3::new(-1, 0, 1),
+		IVec3::new(-1, 1, 0),
 	];
 
 	pub const ZERO: HexCoord = HexCoord { hex: IVec3::ZERO };

engine/world_generation/src/map/mesh_chunk.rs

@@ -11,7 +11,7 @@ impl MeshChunkData {
 	pub fn get_neighbors(&self, coord: &HexCoord) -> [f32; 6] {
 		let mut data = [0.; 6];
 		let n_tiles = coord.get_neighbors();
-		for i in 6..0 {
+		for i in 0..6 {
 			let n = n_tiles[i];
 			if !n.is_in_bounds(Chunk::SIZE, Chunk::SIZE) {
 				continue;