experimenting with water surface mesh

Cargo.lock

@@ -264,6 +264,16 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "asset_loader_proc"
+version = "0.1.0"
+dependencies = [
+ "bevy",
+ "ron",
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "async-broadcast"
 version = "0.5.1"

Cargo.toml

@@ -5,7 +5,7 @@ members = [
 	"game/buildings",
 	"game/shared",
     "engine/world_generation",
-	"engine/asset_loader", "game/buildings", "game/shared", "game/units", "engine/data", "game/resources"]
+	"engine/asset_loader", "game/buildings", "game/shared", "game/units", "engine/data", "game/resources", "engine/asset_loader_proc"]
 
 # Enable a small amount of optimization in debug mode
 [profile.dev]

engine/asset_loader/Cargo.toml

@@ -3,6 +3,7 @@ name = "asset_loader"
 version = "0.1.0"
 edition = "2021"
 
+
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]

engine/asset_loader/src/lib.rs

@@ -1,69 +1 @@
-pub mod macros {
-
-	#[macro_export]
-	macro_rules! create_asset_loader {
-		(
-			$plugin_name: ident,
-			$loader_name: ident,
-			$asset_type: ident,
-			$extensions: expr,
-			$($string_name: ident -> $handle_name: ident)* ;
-			$($string_array_name: ident -> $handle_array_name: ident)* ?
-		) => {
-			use bevy::prelude::*;
-			use bevy::asset::{AssetLoader, AssetEvent, AssetEvents, LoadContext, LoadState, AsyncReadExt, io::Reader};
-			use bevy::utils::BoxedFuture;
-			pub struct $plugin_name;
-			impl Plugin for $plugin_name {
-				fn build(&self, app: &mut App) {
-					app.init_asset::<$asset_type>()
-						.init_asset_loader::<$loader_name>();
-				}
-			}
-
-			#[derive(Default)]
-			pub struct $loader_name;
-
-			impl AssetLoader for $loader_name {
-				type Asset = $asset_type;
-
-				type Settings = ();
-
-				type Error = String;
-
-				async fn load<'a>(
-					&'a self,
-					reader: &'a mut Reader<'_>,
-					_settings: &'a Self::Settings,
-					load_context: &'a mut LoadContext<'_>,
-				) -> Result<Self::Asset, Self::Error> {
-					let mut bytes = Vec::new();
-					let read_result = reader.read_to_end(&mut bytes).await;
-					if read_result.is_err() {
-						return Err(read_result.err().unwrap().to_string());
-					}
-					let serialized: Result<Self::Asset, _> =
-						ron::de::from_bytes::<Self::Asset>(&bytes);
-					if serialized.is_err() {
-						return Err(serialized.err().unwrap().to_string());
-					}
-					let mut asset = serialized.unwrap();
-					$(
-
-						asset.$handle_name = load_context.load(&asset.$string_name);
-					)*
-					$(
-						for i in 0..asset.$string_array_name.len(){
-							asset.$handle_array_name.push(load_context.load(&asset.$string_array_name[i]));
-						}
-					)?
-					return Ok(asset);
-				}
-
-				fn extensions(&self) -> &[&str] {
-					$extensions
-				}
-			}
-		};
-	}
-}
+pub mod macros;

engine/asset_loader/src/macros.rs

@@ -0,0 +1,66 @@
+#[macro_export]
+macro_rules! create_asset_loader {
+	(
+		$plugin_name: ident,
+		$loader_name: ident,
+		$asset_type: ident,
+		$extensions: expr,
+		$($string_name: ident -> $handle_name: ident)* ;
+		$($string_array_name: ident -> $handle_array_name: ident)* ?
+	) => {
+		use bevy::prelude::*;
+		use bevy::asset::{AssetLoader, AssetEvent, AssetEvents, LoadContext, LoadState, AsyncReadExt, io::Reader};
+		use bevy::utils::BoxedFuture;
+		pub struct $plugin_name;
+		impl Plugin for $plugin_name {
+			fn build(&self, app: &mut App) {
+				app.init_asset::<$asset_type>()
+					.init_asset_loader::<$loader_name>();
+			}
+		}
+
+		#[derive(Default)]
+		pub struct $loader_name;
+
+		impl AssetLoader for $loader_name {
+			type Asset = $asset_type;
+
+			type Settings = ();
+
+			type Error = String;
+
+			async fn load<'a>(
+				&'a self,
+				reader: &'a mut Reader<'_>,
+				_settings: &'a Self::Settings,
+				load_context: &'a mut LoadContext<'_>,
+			) -> Result<Self::Asset, Self::Error> {
+				let mut bytes = Vec::new();
+				let read_result = reader.read_to_end(&mut bytes).await;
+				if read_result.is_err() {
+					return Err(read_result.err().unwrap().to_string());
+				}
+				let serialized: Result<Self::Asset, _> =
+					ron::de::from_bytes::<Self::Asset>(&bytes);
+				if serialized.is_err() {
+					return Err(serialized.err().unwrap().to_string());
+				}
+				let mut asset = serialized.unwrap();
+				$(
+
+					asset.$handle_name = load_context.load(&asset.$string_name);
+				)*
+				$(
+					for i in 0..asset.$string_array_name.len(){
+						asset.$handle_array_name.push(load_context.load(&asset.$string_array_name[i]));
+					}
+				)?
+				return Ok(asset);
+			}
+
+			fn extensions(&self) -> &[&str] {
+				$extensions
+			}
+		}
+	};
+}

engine/asset_loader_proc/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "asset_loader_proc"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+proc-macro = true
+
+[dependencies]
+serde = "1.0.204"
+serde_json = "1.0.120"
+bevy = "0.14.2"
+ron = "0.8.1"

engine/asset_loader_proc/src/lib.rs

@@ -0,0 +1 @@
+  

engine/world_generation/src/generators/mesh_generator.rs

@@ -2,6 +2,7 @@ use crate::hex_utils::HexCoord;
 use crate::{hex_utils::offset3d_to_world, prelude::*};
 #[cfg(feature = "tracing")]
 use bevy::log::*;
+use bevy::math::VectorSpace;
 use bevy::{
 	prelude::*,
 	render::{
@@ -94,6 +95,74 @@ fn create_tile(
 	}
 }
 
+pub fn generate_chunk_water_mesh(chunk: &MeshChunkData, sealevel: f32, map_width: usize, map_height: usize) -> Mesh {
+	#[cfg(feature = "tracing")]
+	let _gen_mesh = info_span!("Generate Water Surface Mesh").entered();
+	let vertex_count: usize = Chunk::SIZE * Chunk::SIZE * 7;
+	let mut verts = Vec::with_capacity(vertex_count);
+	let mut uvs = Vec::with_capacity(vertex_count);
+	let mut indices = Vec::with_capacity(vertex_count);
+	let mut normals = Vec::with_capacity(vertex_count);
+
+	for z in 0..Chunk::SIZE {
+		for x in 0..Chunk::SIZE {
+			let idx = x + z * Chunk::SIZE;
+			let height = chunk.heights[idx];
+			if height > sealevel {
+				continue;
+			}
+			let off_pos = Vec3::new(x as f32, sealevel, z as f32);
+			let tile_pos = offset3d_to_world(off_pos);
+			let coord = HexCoord::from_grid_pos(x, z);
+			let n = chunk.get_neighbors(&coord);
+
+			create_tile_water_surface(tile_pos, &n, &mut verts, &mut uvs, &mut indices, &mut normals);
+		}
+	}
+	let mesh = Mesh::new(
+		PrimitiveTopology::TriangleList,
+		RenderAssetUsages::MAIN_WORLD | RenderAssetUsages::RENDER_WORLD,
+	)
+	.with_inserted_attribute(Mesh::ATTRIBUTE_POSITION, verts)
+	.with_inserted_attribute(Mesh::ATTRIBUTE_UV_0, uvs)
+	.with_inserted_attribute(Mesh::ATTRIBUTE_NORMAL, normals)
+	.with_inserted_indices(Indices::U32(indices));
+	return mesh;
+}
+
+fn create_tile_water_surface(
+	pos: Vec3,
+	neighbors: &[f32; 6],
+	verts: &mut Vec<Vec3>,
+	uvs: &mut Vec<Vec2>,
+	indices: &mut Vec<u32>,
+	normals: &mut Vec<Vec3>,
+) {
+	let idx = verts.len() as u32;
+	//todo: only use triangle fan when on shoreline
+	verts.push(pos);
+	uvs.push(Vec2::ZERO);
+	normals.push(Vec3::Y);
+	for i in 0..6 {
+		let p = pos + HEX_CORNERS[i];
+		verts.push(p);
+		let mut uv = Vec2::ZERO;
+		let n = neighbors[i];
+		let nn = neighbors[(i + 5) % 6];
+
+		if nn > pos.y || n > pos.y {
+			uv = Vec2::ONE;
+		}
+
+		indices.push(idx);
+		indices.push(idx + 1 + i as u32);
+		indices.push(idx + 1 + ((i as u32 + 1) % 6));
+
+		uvs.push(uv);
+		normals.push(Vec3::Y);
+	}
+}
+
 fn create_tile_wall(
 	pos: Vec3,
 	dir: usize,

engine/world_generation/src/heightmap.rs

@@ -39,7 +39,7 @@ pub fn generate_heightmap(cfg: &GenerationConfig, seed: u32, painter: &BiomePain
 			chunks,
 			height: cfg.size.y as usize,
 			width: cfg.size.x as usize,
-			sea_level: cfg.sea_level as f32,
+			sealevel: cfg.sea_level as f32,
 			min_level: min,
 			max_level: max,
 			biome_count: painter.biomes.len(),

engine/world_generation/src/map/map.rs

@@ -13,7 +13,7 @@ pub struct Map {
 	pub chunks: Vec<Chunk>,
 	pub height: usize,
 	pub width: usize,
-	pub sea_level: f32,
+	pub sealevel: f32,
 	pub min_level: f32,
 	pub max_level: f32,
 	pub biome_count: usize,
@@ -39,6 +39,7 @@ impl Map {
 
 		return MeshChunkData {
 			min_height: self.min_level,
+			sealevel: self.sealevel,
 			heights: chunk.heights.clone(),
 			textures: chunk.textures.clone(),
 		};
@@ -140,7 +141,7 @@ impl Map {
 	pub fn get_center(&self) -> Vec3 {
 		let w = self.get_world_width();
 		let h = self.get_world_height();
-		return Vec3::new(w / 2., self.sea_level, h / 2.);
+		return Vec3::new(w / 2., self.sealevel, h / 2.);
 	}
 
 	pub fn get_world_width(&self) -> f32 {

engine/world_generation/src/map/map_utils.rs

@@ -68,7 +68,7 @@ pub fn update_map(map: &Map, smooth: f32, image: &mut ImageBuffer<image::Rgba<u8
 		let height = map.sample_height(&coord);
 
 		let mut color = Hsla::hsl(138.0, 1.0, 0.4);
-		if height < map.sea_level {
+		if height < map.sealevel {
 			color.hue = 217.0;
 		}
 

engine/world_generation/src/map/mesh_chunk.rs

@@ -6,6 +6,7 @@ pub struct MeshChunkData {
 	pub heights: [f32; Chunk::AREA],
 	pub textures: [[u32; 2]; Chunk::AREA],
 	pub min_height: f32,
+	pub sealevel: f32,
 }
 
 impl MeshChunkData {
@@ -22,4 +23,18 @@ impl MeshChunkData {
 
 		return data;
 	}
+
+	pub fn get_neighbors_map_bounded(&self, coord: &HexCoord, width: usize, height: usize) -> [f32; 6] {
+		let mut data = [self.min_height; 6];
+		let n_tiles = coord.get_neighbors();
+		for i in 0..6 {
+			let n = n_tiles[i];
+			if !n.is_in_bounds(Chunk::SIZE * width, Chunk::SIZE * height) {
+				continue;
+			}
+			data[i] = self.heights[n.to_index(Chunk::SIZE)];
+		}
+
+		return data;
+	}
 }

game/main/src/camera_system/camera_plugin.rs

@@ -224,7 +224,7 @@ fn sample_ground(pos: Vec3, heightmap: &Map) -> f32 {
 	let mut ground_height = if heightmap.is_in_bounds(&tile_under) {
 		heightmap.sample_height(&tile_under)
 	} else {
-		heightmap.sea_level
+		heightmap.sealevel
 	};
 
 	for n in neighbors {
@@ -234,8 +234,8 @@ fn sample_ground(pos: Vec3, heightmap: &Map) -> f32 {
 			}
 		}
 	}
-	if ground_height < heightmap.sea_level {
-		ground_height = heightmap.sea_level;
+	if ground_height < heightmap.sealevel {
+		ground_height = heightmap.sealevel;
 	}
 	return ground_height;
 }

game/main/src/map_rendering/chunk_rebuild.rs

@@ -33,6 +33,7 @@ fn chunk_rebuilder(
 	heightmap: Res<Map>,
 ) {
 	let pool = AsyncComputeTaskPool::get();
+	let map_size = UVec2::new(heightmap.width as u32, heightmap.height as u32);
 
 	for (chunk_entity, idx) in &chunk_query {
 		#[cfg(feature = "tracing")]
@@ -46,7 +47,8 @@ fn chunk_rebuilder(
 			#[cfg(feature = "tracing")]
 			let _spawn_span = info_span!("Rebuild Task").entered();
 			let mut queue = CommandQueue::default();
-			let (mesh, collider_data, _, _) = prepare_chunk_mesh(&chunk_data, chunk_offset, chunk_index);
+			let (mesh, water_mesh, collider_data, _, _) =
+				prepare_chunk_mesh(&chunk_data, chunk_data.sealevel, chunk_offset, chunk_index, map_size);
 			#[cfg(feature = "tracing")]
 			let trimesh_span = info_span!("Chunk Trimesh").entered();
 			let c = Collider::trimesh_with_flags(

game/main/src/map_rendering/map_init.rs

@@ -32,12 +32,13 @@ use crate::{
 		chunk_material::ChunkMaterial,
 		water_material::{WaterMaterial, WaterSettings},
 	},
-	utlis::{
-		chunk_utils::{paint_map, prepare_chunk_mesh_with_collider},
-	},
+	utlis::chunk_utils::{paint_map, prepare_chunk_mesh_with_collider},
 };
 
-use super::{chunk_rebuild::ChunkRebuildPlugin, render_distance_system::RenderDistanceVisibility, terraforming_test::TerraFormingTestPlugin};
+use super::{
+	chunk_rebuild::ChunkRebuildPlugin, render_distance_system::RenderDistanceVisibility,
+	terraforming_test::TerraFormingTestPlugin,
+};
 
 pub struct MapInitPlugin;
 
@@ -52,7 +53,6 @@ impl Plugin for MapInitPlugin {
 		app.add_plugins(BiomeAssetPlugin);
 
 		app.add_plugins(ResourceInspectorPlugin::<GenerationConfig>::default());
-		app.add_plugins(ResourceInspectorPlugin::<WaterInspect>::default());
 		app.register_type::<ExtendedMaterial<StandardMaterial, WaterMaterial>>();
 		app.register_asset_reflect::<ExtendedMaterial<StandardMaterial, WaterMaterial>>();
 		app.add_plugins((
@@ -93,12 +93,7 @@ impl Plugin for MapInitPlugin {
 	}
 }
 
-#[derive(Resource, Reflect, Default)]
-#[reflect(Resource)]
-struct WaterInspect(Handle<ExtendedMaterial<StandardMaterial, WaterMaterial>>);
-
 fn setup_materials(
-	mut commands: Commands,
 	mut phos_assets: ResMut<PhosAssets>,
 	mut water_materials: ResMut<Assets<ExtendedMaterial<StandardMaterial, WaterMaterial>>>,
 ) {
@@ -119,7 +114,6 @@ fn setup_materials(
 			..default()
 		},
 	});
-	commands.insert_resource(WaterInspect(water_material.clone()));
 	phos_assets.water_material = water_material;
 }
 
@@ -239,12 +233,19 @@ fn spawn_map(
 ) {
 	paint_map(&mut heightmap, &biome_painter, &tile_assets, &tile_mappers);
 
+	let map_size = UVec2::new(heightmap.width as u32, heightmap.height as u32);
 	let chunk_meshes: Vec<_> = heightmap
 		.chunks
 		.par_iter()
 		.map(|chunk: &Chunk| {
 			let index = offset_to_index(chunk.chunk_offset, heightmap.width);
-			return prepare_chunk_mesh_with_collider(&heightmap.get_chunk_mesh_data(index), chunk.chunk_offset, index);
+			return prepare_chunk_mesh_with_collider(
+				&heightmap.get_chunk_mesh_data(index),
+				heightmap.sealevel,
+				chunk.chunk_offset,
+				index,
+				map_size,
+			);
 		})
 		.collect();
 
@@ -257,36 +258,52 @@ fn spawn_map(
 			0.,
 			(Chunk::SIZE / 2) as f32 * 1.5,
 		);
-		for (mesh, collider, pos, index) in chunk_meshes {
+		for (chunk_mesh, water_mesh, collider, pos, index) in chunk_meshes {
 			// let mesh_handle = meshes.a
-			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(visibility_offset),
-				collider,
-			));
-			registry.chunks.push(chunk.id());
+			let chunk = commands
+				.spawn((
+					MaterialMeshBundle {
+						mesh: meshes.add(chunk_mesh),
+						material: atlas.chunk_material_handle.clone(),
+						transform: Transform::from_translation(pos),
+						..default()
+					},
+					PhosChunk::new(index),
+					RenderDistanceVisibility::default().with_offset(visibility_offset),
+					collider,
+				))
+				.id();
+			let water = commands
+				.spawn((
+					MaterialMeshBundle {
+						mesh: meshes.add(water_mesh),
+						material: atlas.water_material.clone(),
+						transform: Transform::from_translation(pos),
+						..default()
+					},
+					PhosChunk::new(index),
+					NotShadowCaster,
+					RenderDistanceVisibility::default().with_offset(visibility_offset),
+				))
+				.id();
+			registry.chunks.push(chunk);
+			registry.waters.push(water);
 		}
 	}
 
-	commands.spawn((
-		MaterialMeshBundle {
-			transform: Transform::from_translation(heightmap.get_center()),
-			mesh: meshes.add(
-				Plane3d::default()
-					.mesh()
-					.size(heightmap.get_world_width(), heightmap.get_world_height()),
-			),
-			material: atlas.water_material.clone(),
-			..default()
-		},
-		NotShadowCaster,
-	));
+	// commands.spawn((
+	// 	MaterialMeshBundle {
+	// 		transform: Transform::from_translation(heightmap.get_center()),
+	// 		mesh: meshes.add(
+	// 			Plane3d::default()
+	// 				.mesh()
+	// 				.size(heightmap.get_world_width(), heightmap.get_world_height()),
+	// 		),
+	// 		material: atlas.water_material.clone(),
+	// 		..default()
+	// 	},
+	// 	NotShadowCaster,
+	// ));
 
 	commands.insert_resource(registry);
 	generator_state.set(GeneratorState::Idle);

game/main/src/prelude.rs

@@ -30,12 +30,14 @@ impl PhosChunk {
 #[derive(Resource, Default)]
 pub struct PhosChunkRegistry {
 	pub chunks: Vec<Entity>,
+	pub waters: Vec<Entity>,
 }
 
 impl PhosChunkRegistry {
 	pub fn new(size: usize) -> Self {
 		return Self {
 			chunks: Vec::with_capacity(size),
+			waters: Vec::with_capacity(size),
 		};
 	}
 }

game/main/src/utlis/chunk_utils.rs

@@ -3,14 +3,17 @@ use bevy::log::*;
 use bevy::{
 	asset::Assets,
 	ecs::system::Res,
-	math::{IVec2, Vec3},
+	math::{IVec2, UVec2, Vec3},
 	render::mesh::Mesh,
 };
 use bevy_rapier3d::geometry::{Collider, TriMeshFlags};
 use rayon::iter::{IntoParallelRefMutIterator, ParallelIterator};
 use world_generation::{
 	biome_painter::BiomePainter,
-	generators::{chunk_colliders::generate_chunk_collider, mesh_generator::generate_chunk_mesh},
+	generators::{
+		chunk_colliders::generate_chunk_collider,
+		mesh_generator::{generate_chunk_mesh, generate_chunk_water_mesh},
+	},
 	hex_utils::offset_to_world,
 	prelude::{Chunk, Map, MeshChunkData},
 	tile_manager::TileAsset,
@@ -50,16 +53,20 @@ pub fn paint_chunk(
 
 pub fn prepare_chunk_mesh(
 	chunk: &MeshChunkData,
+	sealevel: f32,
 	chunk_offset: IVec2,
 	chunk_index: usize,
-) -> (Mesh, (Vec<Vec3>, Vec<[u32; 3]>), Vec3, usize) {
+	map_size: UVec2,
+) -> (Mesh, Mesh, (Vec<Vec3>, Vec<[u32; 3]>), Vec3, usize) {
 	#[cfg(feature = "tracing")]
 	let _gen_mesh = info_span!("Generate Chunk").entered();
-	let mesh = generate_chunk_mesh(chunk);
+	let chunk_mesh = generate_chunk_mesh(chunk);
+	let water_mesh = generate_chunk_water_mesh(chunk, sealevel, map_size.x as usize, map_size.y as usize);
 	let col_data = generate_chunk_collider(chunk);
 
 	return (
-		mesh,
+		chunk_mesh,
+		water_mesh,
 		col_data,
 		offset_to_world(chunk_offset * Chunk::SIZE as i32, 0.),
 		chunk_index,
@@ -68,15 +75,18 @@ pub fn prepare_chunk_mesh(
 
 pub fn prepare_chunk_mesh_with_collider(
 	chunk: &MeshChunkData,
+	sealevel: f32,
 	chunk_offset: IVec2,
 	chunk_index: usize,
-) -> (Mesh, Collider, Vec3, usize) {
-	let (mesh, (col_verts, col_indicies), pos, index) = prepare_chunk_mesh(chunk, chunk_offset, chunk_index);
+	map_size: UVec2,
+) -> (Mesh, Mesh, Collider, Vec3, usize) {
+	let (chunk_mesh, water_mesh, (col_verts, col_indicies), pos, index) =
+		prepare_chunk_mesh(chunk, sealevel, chunk_offset, chunk_index, map_size);
 	let collider: Collider;
 	{
 		#[cfg(feature = "tracing")]
 		let _collider_span = info_span!("Create Collider Trimesh").entered();
 		collider = Collider::trimesh_with_flags(col_verts, col_indicies, TriMeshFlags::DELETE_DUPLICATE_TRIANGLES);
 	}
-	return (mesh, collider, pos, index);
+	return (chunk_mesh, water_mesh, collider, pos, index);
 }