chunk rebuilder system

refactoring

engine/world_generation/src/chunk_colliders.rs

@@ -11,9 +11,8 @@ pub fn generate_chunk_collider(chunk: &Chunk, map: &Map) -> (Vec<Vec3>, Vec<[u32
 	for z in 0..Chunk::SIZE {
 		for x in 0..Chunk::SIZE {
 			let height = chunk.heights[x + z * Chunk::SIZE];
-			let coord = HexCoord::from_offset(
-				IVec2::new(x as i32, z as i32) + (chunk.chunk_offset * Chunk::SIZE as i32),
-			);
+			let coord =
+				HexCoord::from_offset(IVec2::new(x as i32, z as i32) + (chunk.chunk_offset * Chunk::SIZE as i32));
 			let neighbors = map.get_neighbors(&coord);
 			let off_pos = Vec3::new(x as f32, height, z as f32);
 			let tile_pos = offset3d_to_world(off_pos);
@@ -23,12 +22,7 @@ pub fn generate_chunk_collider(chunk: &Chunk, map: &Map) -> (Vec<Vec3>, Vec<[u32
 	return (verts, indices);
 }
 
-fn create_tile_collider(
-	pos: Vec3,
-	verts: &mut Vec<Vec3>,
-	indices: &mut Vec<[u32; 3]>,
-	neighbors: &[Option<f32>; 6],
-) {
+fn create_tile_collider(pos: Vec3, verts: &mut Vec<Vec3>, indices: &mut Vec<[u32; 3]>, neighbors: &[Option<f32>; 6]) {
 	let idx = verts.len() as u32;
 	for i in 0..6 {
 		let p = pos + HEX_CORNERS[i];
@@ -66,13 +60,7 @@ fn create_tile_collider(
 	}
 }
 
-fn create_tile_wall_collider(
-	idx: u32,
-	pos: Vec3,
-	dir: usize,
-	verts: &mut Vec<Vec3>,
-	indices: &mut Vec<[u32; 3]>,
-) {
+fn create_tile_wall_collider(idx: u32, pos: Vec3, dir: usize, verts: &mut Vec<Vec3>, indices: &mut Vec<[u32; 3]>) {
 	let idx2 = verts.len() as u32;
 
 	verts.push(pos + HEX_CORNERS[dir]);

engine/world_generation/src/hex_utils.rs

@@ -28,6 +28,10 @@ pub fn offset_to_hex(offset: IVec2) -> IVec3 {
 	return v;
 }
 
+pub fn offset_to_index(offset: IVec2, width: usize) -> usize {
+	return offset.x as usize + offset.y as usize * width;
+}
+
 pub fn snap_to_hex_grid(world_pos: Vec3) -> Vec3 {
 	return offset_to_world(world_to_offset_pos(world_pos), world_pos.y);
 }

engine/world_generation/src/mesh_generator.rs

@@ -11,8 +11,6 @@ use bevy::{
 	},
 };
 
-
-
 pub fn generate_chunk_mesh(
 	chunk: &Chunk,
 	map: &Map,
@@ -33,9 +31,8 @@ pub fn generate_chunk_mesh(
 			let temperature = chunk.temperature[x + z * Chunk::SIZE];
 			let off_pos = Vec3::new(x as f32, height, z as f32);
 			let tile_pos = offset3d_to_world(off_pos);
-			let coord = HexCoord::from_offset(
-				IVec2::new(x as i32, z as i32) + (chunk.chunk_offset * Chunk::SIZE as i32),
-			);
+			let coord =
+				HexCoord::from_offset(IVec2::new(x as i32, z as i32) + (chunk.chunk_offset * Chunk::SIZE as i32));
 			let n = map.get_neighbors(&coord);
 			let biome = mappers.get(painter.sample_biome(moisture, temperature));
 			let tile_handle = biome.unwrap().sample_tile(height);

engine/world_generation/src/packed_mesh_generator.rs

@@ -28,9 +28,8 @@ pub fn generate_packed_chunk_mesh(
 			let height = chunk.heights[x + z * Chunk::SIZE];
 			let moisture = chunk.moisture[x + z * Chunk::SIZE];
 			let temperature = chunk.temperature[x + z * Chunk::SIZE];
-			let coord = HexCoord::from_offset(
-				IVec2::new(x as i32, z as i32) + (chunk.chunk_offset * Chunk::SIZE as i32),
-			);
+			let coord =
+				HexCoord::from_offset(IVec2::new(x as i32, z as i32) + (chunk.chunk_offset * Chunk::SIZE as i32));
 			let n = map.get_neighbors(&coord);
 			let biome = mappers.get(painter.sample_biome(moisture, temperature));
 			let tile_handle = biome.unwrap().sample_tile(height);

game/main/src/main.rs

@@ -6,7 +6,7 @@ use bevy_inspector_egui::quick::WorldInspectorPlugin;
 use phos::PhosGamePlugin;
 
 mod camera_system;
-mod map_init;
+mod map_rendering;
 mod phos;
 mod prelude;
 mod shader_extensions;

game/main/src/map_rendering/chunk_rebuild.rs

@@ -0,0 +1,90 @@
+use bevy::prelude::*;
+use bevy_rapier3d::geometry::{Collider, TriMeshFlags};
+use rayon::iter::{IntoParallelRefIterator, ParallelIterator};
+use world_generation::{
+	biome_painter::BiomePainterAsset,
+	chunk_colliders::generate_chunk_collider,
+	hex_utils::{self, offset_to_world, SHORT_DIAGONAL},
+	mesh_generator::generate_chunk_mesh,
+	prelude::{Chunk, Map},
+	tile_manager::TileAsset,
+	tile_mapper::TileMapperAsset,
+};
+
+use crate::{
+	prelude::{ChunkAtlas, PhosChunk, PhosChunkRegistry},
+	utlis::render_distance_system::RenderDistanceVisibility,
+};
+
+use super::prelude::CurrentBiomePainter;
+pub struct ChunkRebuildPlugin;
+
+impl Plugin for ChunkRebuildPlugin {
+	fn build(&self, app: &mut App) {
+		app.insert_resource(ChunkRebuildQueue::default());
+		app.add_systems(PostUpdate, chunk_rebuilder);
+	}
+}
+
+#[derive(Resource, Default)]
+pub struct ChunkRebuildQueue {
+	pub queue: Vec<usize>,
+}
+
+fn chunk_rebuilder(
+	mut commands: Commands,
+	mut queue: ResMut<ChunkRebuildQueue>,
+	mut chunks: ResMut<PhosChunkRegistry>,
+	atlas: Res<ChunkAtlas>,
+	heightmap: Res<Map>,
+	tile_assets: Res<Assets<TileAsset>>,
+	tile_mappers: Res<Assets<TileMapperAsset>>,
+	mut meshes: ResMut<Assets<Mesh>>,
+	biome_painters: Res<Assets<BiomePainterAsset>>,
+	painter: Res<CurrentBiomePainter>,
+) {
+	for chunk_index in &queue.queue {
+		let chunk = chunks.chunks[*chunk_index];
+		commands.entity(chunk).despawn();
+	}
+
+	let b_painter = biome_painters.get(painter.handle.clone());
+
+	let cur_painter = b_painter.unwrap();
+
+	let chunk_meshes: Vec<_> = queue
+		.queue
+		.par_iter()
+		.map(|idx| {
+			let chunk = &heightmap.chunks[*idx];
+			let mesh = generate_chunk_mesh(chunk, &heightmap, cur_painter, &tile_assets, &tile_mappers);
+			let collision = generate_chunk_collider(chunk, &heightmap);
+			return (
+				mesh,
+				collision,
+				offset_to_world(chunk.chunk_offset * Chunk::SIZE as i32, 0.),
+				hex_utils::offset_to_index(chunk.chunk_offset, heightmap.width),
+			);
+		})
+		.collect();
+
+	for (mesh, (col_verts, col_indicies), pos, index) in chunk_meshes {
+		let chunk = commands.spawn((
+			MaterialMeshBundle {
+				mesh: meshes.add(mesh),
+				material: atlas.chunk_material_handle.clone(),
+				transform: Transform::from_translation(pos),
+				..default()
+			},
+			PhosChunk::new(index),
+			RenderDistanceVisibility::default().with_offset(Vec3::new(
+				(Chunk::SIZE / 2) as f32 * SHORT_DIAGONAL,
+				0.,
+				(Chunk::SIZE / 2) as f32 * 1.5,
+			)),
+			Collider::trimesh_with_flags(col_verts, col_indicies, TriMeshFlags::MERGE_DUPLICATE_VERTICES),
+		));
+		chunks.chunks[index] = chunk.id();
+	}
+	queue.queue.clear();
+}

game/main/src/map_rendering/map_init.rs

@@ -1,4 +1,4 @@
-use bevy::{asset::LoadState, pbr::ExtendedMaterial, prelude::*};
+use bevy::{asset::LoadState, log::tracing_subscriber::registry, pbr::ExtendedMaterial, prelude::*};
 use bevy_inspector_egui::quick::ResourceInspectorPlugin;
 use bevy_rapier3d::geometry::{Collider, TriMeshFlags};
 use rayon::iter::{IntoParallelRefIterator, ParallelIterator};
@@ -6,7 +6,7 @@ use world_generation::{
 	biome_painter::*,
 	chunk_colliders::generate_chunk_collider,
 	heightmap::generate_heightmap,
-	hex_utils::{offset_to_world, SHORT_DIAGONAL},
+	hex_utils::{self, offset_to_world, SHORT_DIAGONAL},
 	mesh_generator::generate_chunk_mesh,
 	prelude::*,
 	tile_manager::*,
@@ -15,11 +15,13 @@ use world_generation::{
 
 use crate::{
 	camera_system::components::*,
-	prelude::{ChunkAtlas, PhosChunk, PhosMap},
+	prelude::{ChunkAtlas, PhosChunk, PhosChunkRegistry, PhosMap},
 	shader_extensions::chunk_material::ChunkMaterial,
 	utlis::render_distance_system::RenderDistanceVisibility,
 };
 
+use super::prelude::CurrentBiomePainter;
+
 pub struct MapInitPlugin;
 
 impl Plugin for MapInitPlugin {
@@ -58,12 +60,10 @@ fn load_textures(
 		water_material: water_material,
 	});
 }
-#[derive(Resource)]
-struct Painter(Handle<BiomePainterAsset>);
 
 fn load_tiles(mut commands: Commands, asset_server: Res<AssetServer>) {
 	let handle: Handle<BiomePainterAsset> = asset_server.load("biome_painters/terra.biomes.json");
-	commands.insert_resource(Painter(handle));
+	commands.insert_resource(CurrentBiomePainter { handle });
 }
 
 fn finalize_texture(
@@ -71,7 +71,7 @@ fn finalize_texture(
 	mut atlas: ResMut<ChunkAtlas>,
 	mut map: ResMut<PhosMap>,
 	mut images: ResMut<Assets<Image>>,
-	painter: Res<Painter>,
+	painter: Res<CurrentBiomePainter>,
 	painter_load: Res<BiomePainterLoadState>,
 	tile_load: Res<TileAssetLoadState>,
 	mut chunk_materials: ResMut<Assets<ExtendedMaterial<StandardMaterial, ChunkMaterial>>>,
@@ -88,7 +88,7 @@ fn finalize_texture(
 	if asset_server.load_state(atlas.handle.clone()) != LoadState::Loaded {
 		return;
 	}
-	if asset_server.load_state(painter.0.clone()) != LoadState::Loaded {
+	if asset_server.load_state(painter.handle.clone()) != LoadState::Loaded {
 		return;
 	}
 	let image = images.get_mut(&atlas.handle).unwrap();
@@ -198,12 +198,12 @@ fn spawn_map(
 	tile_assets: Res<Assets<TileAsset>>,
 	tile_mappers: Res<Assets<TileMapperAsset>>,
 	biome_painters: Res<Assets<BiomePainterAsset>>,
-	painter: Res<Painter>,
+	painter: Res<CurrentBiomePainter>,
 ) {
 	if !map.ready || !map.regenerate {
 		return;
 	}
-	let b_painter = biome_painters.get(painter.0.clone());
+	let b_painter = biome_painters.get(painter.handle.clone());
 	map.regenerate = false;
 
 	let cur_painter = b_painter.unwrap();
@@ -218,19 +218,22 @@ fn spawn_map(
 				mesh,
 				collision,
 				offset_to_world(chunk.chunk_offset * Chunk::SIZE as i32, 0.),
+				hex_utils::offset_to_index(chunk.chunk_offset, heightmap.width),
 			);
 		})
 		.collect();
 
-	for (mesh, (col_verts, col_indicies), pos) in chunk_meshes {
-		commands.spawn((
+	let mut registry = PhosChunkRegistry::new(chunk_meshes.len());
+
+	for (mesh, (col_verts, col_indicies), pos, index) in chunk_meshes {
+		let chunk = commands.spawn((
 			MaterialMeshBundle {
 				mesh: meshes.add(mesh),
 				material: atlas.chunk_material_handle.clone(),
 				transform: Transform::from_translation(pos),
 				..default()
 			},
-			PhosChunk,
+			PhosChunk::new(index),
 			RenderDistanceVisibility::default().with_offset(Vec3::new(
 				(Chunk::SIZE / 2) as f32 * SHORT_DIAGONAL,
 				0.,
@@ -238,6 +241,7 @@ fn spawn_map(
 			)),
 			Collider::trimesh_with_flags(col_verts, col_indicies, TriMeshFlags::MERGE_DUPLICATE_VERTICES),
 		));
+		registry.chunks.push(chunk.id());
 	}
 
 	commands.spawn((PbrBundle {
@@ -250,6 +254,8 @@ fn spawn_map(
 		material: atlas.water_material.clone(),
 		..default()
 	},));
+
+	commands.insert_resource(registry);
 }
 
 fn despawn_map(

game/main/src/map_rendering/mod.rs

@@ -0,0 +1,4 @@
+pub mod chunk_rebuild;
+pub mod map_init;
+pub mod prelude;
+pub mod terraforming_test;

game/main/src/map_rendering/prelude.rs

@@ -0,0 +1,7 @@
+use bevy::prelude::*;
+use world_generation::biome_painter::BiomePainterAsset;
+
+#[derive(Resource)]
+pub struct CurrentBiomePainter {
+	pub handle: Handle<BiomePainterAsset>,
+}

game/main/src/map_rendering/terraforming_test.rs

@@ -0,0 +1,37 @@
+use bevy::prelude::*;
+use bevy_rapier3d::{pipeline::QueryFilter, plugin::RapierContext};
+use world_generation::{hex_utils::HexCoord, prelude::Map};
+
+use crate::camera_system::components::PhosCamera;
+
+use super::chunk_rebuild::ChunkRebuildQueue;
+
+pub struct TerraFormingTestPlugin;
+
+impl Plugin for TerraFormingTestPlugin {
+	fn build(&self, app: &mut App) {
+		app.add_systems(Update, deform);
+	}
+}
+
+fn deform(
+	cam: Query<&Transform, With<PhosCamera>>,
+	keyboard: Res<ButtonInput<KeyCode>>,
+	rapier_context: Res<RapierContext>,
+	mut heightmap: ResMut<Map>,
+	mut rebuild: ResMut<ChunkRebuildQueue>,
+) {
+	if !keyboard.pressed(KeyCode::KeyF) {
+		return;
+	}
+
+	let cam_transform = cam.single();
+	let fwd: Vec3 = cam_transform.forward().into();
+
+	let collision = rapier_context.cast_ray(cam_transform.translation, fwd, 100., true, QueryFilter::only_fixed());
+
+	if let Some((entity, dist)) = collision {
+		let contact_point = cam_transform.translation + (fwd * dist);
+		let contact_coord = HexCoord::from_world_pos(contact_point);
+	}
+}

game/main/src/phos.rs

@@ -1,7 +1,7 @@
 use crate::camera_system::camera_plugin::PhosCameraPlugin;
 use crate::camera_system::components::PhosCamera;
-use crate::map_init::MapInitPlugin;
-use crate::prelude::*;
+use crate::map_rendering::chunk_rebuild::ChunkRebuildPlugin;
+use crate::map_rendering::map_init::MapInitPlugin;
 use crate::shader_extensions::chunk_material::ChunkMaterial;
 use crate::utlis::render_distance_system::RenderDistancePlugin;
 use bevy::pbr::ExtendedMaterial;
@@ -26,6 +26,7 @@ impl Plugin for PhosGamePlugin {
 			MapInitPlugin,
 			MaterialPlugin::<ExtendedMaterial<StandardMaterial, ChunkMaterial>>::default(),
 			RenderDistancePlugin,
+			ChunkRebuildPlugin,
 		));
 
 		//Systems - Startup

game/main/src/prelude.rs

@@ -22,4 +22,25 @@ pub struct PhosMap {
 }
 
 #[derive(Component)]
-pub struct PhosChunk;
+pub struct PhosChunk {
+	pub index: usize,
+}
+
+impl PhosChunk {
+	pub fn new(index: usize) -> Self {
+		return Self { index };
+	}
+}
+
+#[derive(Resource, Default)]
+pub struct PhosChunkRegistry {
+	pub chunks: Vec<Entity>,
+}
+
+impl PhosChunkRegistry {
+	pub fn new(size: usize) -> Self {
+		return Self {
+			chunks: Vec::with_capacity(size),
+		};
+	}
+}