From 9532161ed742a6e02cfe575bf46367553abd5d06 Mon Sep 17 00:00:00 2001
From: griffi-gh <prasol258@gmail.com>
Date: Mon, 17 Jul 2023 00:52:07 +0200
Subject: [PATCH] wip

---
 kubi/shaders/world.wgsl     |  6 ++----
 kubi/src/assets.rs          |  4 ++--
 kubi/src/lib.rs             |  4 ++--
 kubi/src/rendering/world.rs | 43 +++++++++++++++++++++++++++++++------
 kubi/src/world.rs           |  2 +-
 5 files changed, 44 insertions(+), 15 deletions(-)

diff --git a/kubi/shaders/world.wgsl b/kubi/shaders/world.wgsl
index 0e1e335..d00f395 100644
--- a/kubi/shaders/world.wgsl
+++ b/kubi/shaders/world.wgsl
@@ -1,7 +1,7 @@
 //TODO migrate, this is just some filler code to make the game compile
 
 struct VertexOutput {
-  @builtin(position) clip_position: vec4<f32>,
+  @builtin(position) position: vec4<f32>,
 };
 
 @vertex
@@ -9,9 +9,7 @@ fn vs_main(
   @builtin(vertex_index) in_vertex_index: u32,
 ) -> VertexOutput {
   var out: VertexOutput;
-  let x = f32(1 - i32(in_vertex_index)) * 0.5;
-  let y = f32(i32(in_vertex_index & 1u) * 2 - 1) * 0.5;
-  out.clip_position = vec4<f32>(x, y, 0.0, 1.0);
+  out.position = vec4<f32>(0.0, 0.0, 0.0, 1.0);
   return out;
 }
 
diff --git a/kubi/src/assets.rs b/kubi/src/assets.rs
index 8e623c1..2fd6132 100644
--- a/kubi/src/assets.rs
+++ b/kubi/src/assets.rs
@@ -37,14 +37,14 @@ impl AssetPaths for BlockTexture {
 
 #[derive(Unique)]
 #[repr(transparent)]
-pub struct BlockTexturesPrefab(pub wgpu::Texture);
+pub struct BlockTexturesAsset(pub wgpu::Texture);
 
 pub fn load_prefabs(
   storages: AllStoragesView,
   renderer: NonSendSync<UniqueView<Renderer>>
 ) {
   log::info!("Loading textures...");
-  storages.add_unique_non_send_sync(BlockTexturesPrefab(
+  storages.add_unique_non_send_sync(BlockTexturesAsset(
     load_asset_texture_array::<BlockTexture>("blocks".into(), &renderer)
   ));
 }
diff --git a/kubi/src/lib.rs b/kubi/src/lib.rs
index 34415bb..8fc36a7 100644
--- a/kubi/src/lib.rs
+++ b/kubi/src/lib.rs
@@ -240,7 +240,7 @@ pub fn kubi_main() {
           let renderer = world.borrow::<NonSendSync<UniqueView<Renderer>>>().unwrap();
           renderer.begin()
         };
-        world.add_unique_non_send_sync(target);
+        world.add_unique(target);
 
         //Run render workflow
         world.run_workload(render).unwrap();
@@ -248,7 +248,7 @@ pub fn kubi_main() {
         //Finish rendering
         {
           let target = world.remove_unique::<RenderTarget>().unwrap();
-          let renderer = world.borrow::<NonSendSync<UniqueView<Renderer>>>().unwrap();
+          let renderer = world.borrow::<UniqueView<Renderer>>().unwrap();
           renderer.end(target);
         }
 
diff --git a/kubi/src/rendering/world.rs b/kubi/src/rendering/world.rs
index 93ae1c0..5fb14e9 100644
--- a/kubi/src/rendering/world.rs
+++ b/kubi/src/rendering/world.rs
@@ -1,17 +1,18 @@
 use glam::{Vec3, Mat4, Quat, ivec3};
-use shipyard::{NonSendSync, UniqueView, UniqueViewMut, View, IntoIter, track};
+use shipyard::{NonSendSync, UniqueView, UniqueViewMut, View, IntoIter, track, Unique};
+use wgpu::util::DeviceExt;
 use crate::{
   camera::Camera,
   player::MainPlayer,
   transform::Transform,
-  assets::BlockTexturesPrefab,
+  assets::BlockTexturesAsset,
   world::{
     ChunkStorage, 
     ChunkMeshStorage, 
     chunk::CHUNK_SIZE,
   }, settings::GameSettings,
 };
-use super::{RenderTarget, primitives::cube::CubePrimitive};
+use super::{RenderTarget, shaders::Shaders, Renderer};
 
 #[repr(C, packed)]
 #[derive(Clone, Copy, bytemuck::Pod, bytemuck::Zeroable)]
@@ -22,15 +23,45 @@ pub struct ChunkVertex {
   pub tex_index: u8,
 }
 
-pub fn draw_world() {}
+#[repr(C, packed)]
+#[derive(Clone, Copy, bytemuck::Pod, bytemuck::Zeroable)]
+struct WorldUniform {
+  position_offset: [f32; 3],
+  view: [[f32; 4]; 4],
+  perspective: [[f32; 4]; 4],
+}
+
+pub fn draw_world(
+  renderer: UniqueView<Renderer>,
+  mut target: UniqueViewMut<RenderTarget>,
+  chunks: UniqueView<ChunkStorage>,
+  meshes: UniqueView<ChunkMeshStorage>,
+  shaders: UniqueView<Shaders>,
+  texture: UniqueView<BlockTexturesAsset>,
+  camera: View<Camera>,
+  settings: UniqueView<GameSettings>
+) {
+  let camera = camera.iter().next().expect("No cameras in the scene");
+  for (&position, chunk) in &chunks.chunks {
+    if let Some(key) = chunk.mesh_index {
+      let mesh = meshes.get(key).expect("Mesh index pointing to nothing");
+      let world_position = position.as_vec3() * CHUNK_SIZE as f32;
+      
+      //TODO culling
+
+      //Draw chunk mesh
+      
+    }
+  }
+}
 
 #[cfg(fuck)]
 pub fn draw_world(
-  mut target: NonSendSync<UniqueViewMut<RenderTarget>>, 
+  mut target: NonSendSync<UniqueViewMut<RenderTarget>>,
   chunks: UniqueView<ChunkStorage>,
   meshes: NonSendSync<UniqueView<ChunkMeshStorage>>,
   program: NonSendSync<UniqueView<ChunkShaderPrefab>>,
-  texture: NonSendSync<UniqueView<BlockTexturesPrefab>>,
+  texture: NonSendSync<UniqueView<BlockTexturesAsset>>,
   camera: View<Camera>,
   settings: UniqueView<GameSettings>
 ) {
diff --git a/kubi/src/world.rs b/kubi/src/world.rs
index 50664d2..f813b43 100644
--- a/kubi/src/world.rs
+++ b/kubi/src/world.rs
@@ -102,7 +102,7 @@ impl ChunkMeshStorage {
 pub fn init_game_world(
   storages: AllStoragesView,
 ) {
-  storages.add_unique_non_send_sync(ChunkMeshStorage::new());
+  storages.add_unique(ChunkMeshStorage::new());
   storages.add_unique(ChunkStorage::new());
   storages.add_unique(ChunkTaskManager::new());
   storages.add_unique(BlockUpdateQueue::new());