Remove things from WorldState to State and World

src/hud/hotbar_hud.rs

@@ -25,7 +25,7 @@ impl HotbarHud {
             Some(BlockType::Sand),
             None,
             Some(BlockType::Grass),
-            None,
+            Some(BlockType::Cobblestone),
             None,
             None,
             None,

src/hud/mod.rs

@@ -4,6 +4,7 @@ use crate::{
     render_context::RenderContext,
     state::PRIMITIVE_STATE,
     vertex::{HudVertex, Vertex},
+    world::block::BlockType,
 };
 
 use self::{debug_hud::DebugHud, hotbar_hud::HotbarHud, widgets_hud::WidgetsHud};
@@ -138,4 +139,9 @@ impl Hud {
             + self.debug_hud.render(&mut render_pass)
             + self.hotbar_hud.render(render_context, &mut render_pass)
     }
+
+    pub fn selected_block(&self) -> Option<BlockType> {
+        // TODO The hotbar widget should be rendered by HotbarHud
+        self.hotbar_hud.blocks[self.widgets_hud.hotbar_cursor_position]
+    }
 }

src/hud/widgets_hud.rs

@@ -12,7 +12,7 @@ use crate::{
 pub struct WidgetsHud {
     texture_bind_group: BindGroup,
     geometry_buffers: GeometryBuffers<u16>,
-    hotbar_cursor_position: usize,
+    pub hotbar_cursor_position: usize,
 }
 
 impl WidgetsHud {

src/main.rs

@@ -2,7 +2,6 @@ mod aabb;
 mod camera;
 mod geometry;
 mod hud;
-mod npc;
 mod player;
 mod render_context;
 mod state;
@@ -148,7 +147,7 @@ fn main() {
                     println!(
                         "{:>8} tris | {:>5} chunks",
                         triangle_count,
-                        state.world_state.world.chunks.len()
+                        state.world.chunks.len()
                     );
 
                     elapsed = Duration::from_secs(0);

src/state.rs

@@ -1,16 +1,20 @@
-pub mod world_state;
-
 use std::time::{Duration, Instant};
 
 use winit::{
     dpi::PhysicalSize,
-    event::{DeviceEvent, ElementState, MouseScrollDelta, VirtualKeyCode, WindowEvent},
+    event::{
+        DeviceEvent, ElementState, MouseButton, MouseScrollDelta, VirtualKeyCode, WindowEvent,
+    },
     window::Window,
 };
 
-use world_state::WorldState;
+use crate::{
-
+    hud::Hud,
-use crate::{hud::Hud, render_context::RenderContext, texture::TextureManager};
+    player::Player,
+    render_context::RenderContext,
+    texture::{Texture, TextureManager},
+    world::World,
+};
 
 pub const PRIMITIVE_STATE: wgpu::PrimitiveState = wgpu::PrimitiveState {
     topology: wgpu::PrimitiveTopology::TriangleList,
@@ -25,11 +29,13 @@ pub const PRIMITIVE_STATE: wgpu::PrimitiveState = wgpu::PrimitiveState {
 pub struct State {
     pub window_size: PhysicalSize<u32>,
     render_context: RenderContext,
-    pub world_state: WorldState,
 
     pub mouse_grabbed: bool,
 
     pub hud: Hud,
+
+    pub world: World,
+    pub player: Player,
 }
 
 impl State {
@@ -85,8 +91,6 @@ impl State {
     }
 
     pub async fn new(window: &Window) -> State {
-        let window_size = window.inner_size();
-
         let (render_surface, render_adapter, render_device, render_queue) =
             Self::create_render_device(window).await;
 
@@ -107,29 +111,31 @@ impl State {
         texture_manager.load_all(&render_context).unwrap();
         render_context.texture_manager = Some(texture_manager);
 
-        let world_state = WorldState::new(&render_context);
-
         let hud = Hud::new(&render_context);
+        let player = Player::new(&render_context);
+        let world = World::new(&render_context, &player.view);
 
         Self {
-            window_size,
+            window_size: window.inner_size(),
             render_context,
 
-            world_state,
-
             mouse_grabbed: false,
 
             hud,
+            player,
+            world,
         }
     }
 
-    pub fn resize(&mut self, new_size: PhysicalSize<u32>) {
+    pub fn resize(&mut self, size: PhysicalSize<u32>) {
-        println!("resizing to {:?}", new_size);
+        println!("resizing to {:?}", size);
-        self.window_size = new_size;
+        self.window_size = size;
-        self.render_context.swap_chain_descriptor.width = new_size.width;
+        self.render_context.swap_chain_descriptor.width = size.width;
-        self.render_context.swap_chain_descriptor.height = new_size.height;
+        self.render_context.swap_chain_descriptor.height = size.height;
 
-        self.world_state.resize(&self.render_context, new_size);
+        self.player.view.projection.resize(size.width, size.height);
+        self.world.depth_texture =
+            Texture::create_depth_texture(&self.render_context, "depth_texture");
 
         self.render_context.swap_chain = self.render_context.device.create_swap_chain(
             &self.render_context.surface,
@@ -144,27 +150,53 @@ impl State {
     }
 
     fn input_keyboard(&mut self, key_code: VirtualKeyCode, state: ElementState) {
-        if state == ElementState::Pressed {
+        let pressed = state == ElementState::Pressed;
+
         match key_code {
-                VirtualKeyCode::Key1 => self.set_hotbar_cursor(0),
+            VirtualKeyCode::F2 if pressed => self.player.creative ^= true,
-                VirtualKeyCode::Key2 => self.set_hotbar_cursor(1),
+
-                VirtualKeyCode::Key3 => self.set_hotbar_cursor(2),
+            // Hotbar
-                VirtualKeyCode::Key4 => self.set_hotbar_cursor(3),
+            VirtualKeyCode::Key1 if pressed => self.set_hotbar_cursor(0),
-                VirtualKeyCode::Key5 => self.set_hotbar_cursor(4),
+            VirtualKeyCode::Key2 if pressed => self.set_hotbar_cursor(1),
-                VirtualKeyCode::Key6 => self.set_hotbar_cursor(5),
+            VirtualKeyCode::Key3 if pressed => self.set_hotbar_cursor(2),
-                VirtualKeyCode::Key7 => self.set_hotbar_cursor(6),
+            VirtualKeyCode::Key4 if pressed => self.set_hotbar_cursor(3),
-                VirtualKeyCode::Key8 => self.set_hotbar_cursor(7),
+            VirtualKeyCode::Key5 if pressed => self.set_hotbar_cursor(4),
-                VirtualKeyCode::Key9 => self.set_hotbar_cursor(8),
+            VirtualKeyCode::Key6 if pressed => self.set_hotbar_cursor(5),
-                _ => self.world_state.input_keyboard(key_code, state),
+            VirtualKeyCode::Key7 if pressed => self.set_hotbar_cursor(6),
+            VirtualKeyCode::Key8 if pressed => self.set_hotbar_cursor(7),
+            VirtualKeyCode::Key9 if pressed => self.set_hotbar_cursor(8),
+
+            // Movement
+            VirtualKeyCode::W => self.player.forward_pressed = pressed,
+            VirtualKeyCode::S => self.player.backward_pressed = pressed,
+            VirtualKeyCode::A => self.player.left_pressed = pressed,
+            VirtualKeyCode::D => self.player.right_pressed = pressed,
+            VirtualKeyCode::Space => {
+                self.player.up_speed = match (pressed, self.player.creative) {
+                    // Creative
+                    (true, true) => 1.0,
+                    (false, true) => 0.0,
+
+                    // Not creative
+                    (true, false) => {
+                        // TODO Don't allow player to jump in mid-air
+                        0.6
                     }
-        } else {
+                    (false, false) => self.player.up_speed,
-            self.world_state.input_keyboard(key_code, state)
+                };
+            }
+            VirtualKeyCode::LShift if self.player.creative => {
+                self.player.up_speed = if pressed { -1.0 } else { 0.0 }
+            }
+            VirtualKeyCode::LControl => self.player.sprinting = pressed,
+
+            _ => (),
         }
     }
 
     fn input_mouse(&mut self, dx: f64, dy: f64) {
         if self.mouse_grabbed {
-            self.world_state.player.update_camera(dx, dy);
+            self.player.update_camera(dx, dy);
         }
     }
 
@@ -178,11 +210,20 @@ impl State {
                 button,
                 state: ElementState::Pressed,
                 ..
-            } if self.mouse_grabbed => self.world_state.input_mouse_button(
+            } if self.mouse_grabbed => {
-                button,
+                if button == &MouseButton::Left {
+                    self.world
+                        .break_at_crosshair(&self.render_context, &self.player.view.camera);
+                } else if button == &MouseButton::Right {
+                    if let Some(selected) = self.hud.selected_block() {
+                        self.world.place_at_crosshair(
                             &self.render_context,
-                None, // TODO
+                            &self.player.view.camera,
-            ),
+                            selected,
+                        );
+                    }
+                }
+            }
 
             WindowEvent::MouseWheel {
                 delta: MouseScrollDelta::LineDelta(_, delta),
@@ -203,11 +244,14 @@ impl State {
     }
 
     pub fn update(&mut self, dt: Duration, render_time: Duration) {
-        self.world_state
+        self.player.update_position(dt, &self.world);
-            .update(dt, render_time, &self.render_context);
 
-        self.hud
+        let view = &mut self.player.view;
-            .update(&self.render_context, &self.world_state.player.view.camera)
+        view.update_view_projection(&self.render_context);
+
+        self.world
+            .update(&self.render_context, dt, render_time, &view.camera);
+        self.hud.update(&self.render_context, &view.camera);
     }
 
     pub fn render(&mut self) -> anyhow::Result<(usize, Duration)> {
@@ -221,9 +265,13 @@ impl State {
             .create_command_encoder(&Default::default());
 
         let mut triangle_count = 0;
-        triangle_count +=
+
-            self.world_state
+        triangle_count += self.world.render(
-                .render(&self.render_context, &frame, &mut render_encoder);
+            &self.render_context,
+            &mut render_encoder,
+            &frame,
+            &self.player.view,
+        );
 
         triangle_count += self
             .hud

src/state/world_state.rs

@@ -1,282 +0,0 @@
-use std::time::Duration;
-
-use wgpu::{
-    util::{BufferInitDescriptor, DeviceExt},
-    CommandEncoder, SwapChainTexture,
-};
-use winit::{
-    dpi::PhysicalSize,
-    event::{ElementState, MouseButton, VirtualKeyCode},
-};
-
-use crate::{
-    player::Player,
-    render_context::RenderContext,
-    texture::Texture,
-    time::Time,
-    vertex::{BlockVertex, Vertex},
-    world::{block::BlockType, World},
-};
-
-pub struct WorldState {
-    pub render_pipeline: wgpu::RenderPipeline,
-    pub depth_texture: Texture,
-
-    time: Time,
-    time_buffer: wgpu::Buffer,
-    pub time_bind_group: wgpu::BindGroup,
-
-    pub world: World,
-    pub player: Player,
-}
-
-impl WorldState {
-    fn create_time(
-        render_context: &RenderContext,
-    ) -> (Time, wgpu::Buffer, wgpu::BindGroupLayout, wgpu::BindGroup) {
-        let time = Time::new();
-
-        let buffer = render_context
-            .device
-            .create_buffer_init(&BufferInitDescriptor {
-                label: Some("time_buffer"),
-                contents: bytemuck::cast_slice(&[time]),
-                usage: wgpu::BufferUsage::UNIFORM | wgpu::BufferUsage::COPY_DST,
-            });
-
-        let bind_group_layout =
-            render_context
-                .device
-                .create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
-                    entries: &[wgpu::BindGroupLayoutEntry {
-                        binding: 0,
-                        visibility: wgpu::ShaderStage::VERTEX | wgpu::ShaderStage::FRAGMENT,
-                        ty: wgpu::BindingType::Buffer {
-                            ty: wgpu::BufferBindingType::Uniform,
-                            has_dynamic_offset: false,
-                            min_binding_size: None,
-                        },
-                        count: None,
-                    }],
-                    label: Some("time_bind_group_layout"),
-                });
-
-        let bind_group = render_context
-            .device
-            .create_bind_group(&wgpu::BindGroupDescriptor {
-                layout: &bind_group_layout,
-                entries: &[wgpu::BindGroupEntry {
-                    binding: 0,
-                    resource: buffer.as_entire_binding(),
-                }],
-                label: Some("time_bind_group"),
-            });
-
-        (time, buffer, bind_group_layout, bind_group)
-    }
-
-    fn create_render_pipeline(
-        render_context: &RenderContext,
-        shader: &wgpu::ShaderModule,
-        pipeline_layout: &wgpu::PipelineLayout,
-    ) -> wgpu::RenderPipeline {
-        render_context
-            .device
-            .create_render_pipeline(&wgpu::RenderPipelineDescriptor {
-                label: Some("Render Pipeline"),
-                layout: Some(&pipeline_layout),
-                vertex: wgpu::VertexState {
-                    module: &shader,
-                    entry_point: "main",
-                    buffers: &[BlockVertex::descriptor()],
-                },
-                fragment: Some(wgpu::FragmentState {
-                    module: &shader,
-                    entry_point: "main",
-                    targets: &[wgpu::ColorTargetState {
-                        format: render_context.swap_chain_descriptor.format,
-                        blend: Some(wgpu::BlendState {
-                            alpha: wgpu::BlendComponent::REPLACE,
-                            color: wgpu::BlendComponent::REPLACE,
-                        }),
-                        write_mask: wgpu::ColorWrite::ALL,
-                    }],
-                }),
-                primitive: wgpu::PrimitiveState {
-                    cull_mode: Some(wgpu::Face::Back),
-                    polygon_mode: wgpu::PolygonMode::Fill,
-                    ..Default::default()
-                },
-                depth_stencil: Some(wgpu::DepthStencilState {
-                    format: Texture::DEPTH_FORMAT,
-                    depth_write_enabled: true,
-                    depth_compare: wgpu::CompareFunction::Less,
-                    stencil: wgpu::StencilState::default(),
-                    bias: wgpu::DepthBiasState::default(),
-                }),
-                multisample: wgpu::MultisampleState::default(),
-            })
-    }
-
-    pub fn new(render_context: &RenderContext) -> WorldState {
-        let (time, time_buffer, time_layout, time_bind_group) = Self::create_time(render_context);
-        let player = Player::new(render_context);
-
-        let world = World::new(render_context);
-
-        let shader = render_context.device.create_shader_module(
-            &(wgpu::ShaderModuleDescriptor {
-                label: Some("shader"),
-                flags: wgpu::ShaderFlags::all(),
-                source: wgpu::ShaderSource::Wgsl(include_str!("../shaders/world.wgsl").into()),
-            }),
-        );
-
-        let texture_manager = render_context.texture_manager.as_ref().unwrap();
-        let render_pipeline_layout =
-            render_context
-                .device
-                .create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
-                    label: Some("render_pipeline_layout"),
-                    push_constant_ranges: &[],
-                    bind_group_layouts: &[
-                        &texture_manager.bind_group_layout,
-                        &player.view.bind_group_layout,
-                        &time_layout,
-                    ],
-                });
-        let render_pipeline =
-            Self::create_render_pipeline(render_context, &shader, &render_pipeline_layout);
-        let depth_texture = Texture::create_depth_texture(render_context, "depth_texture");
-
-        Self {
-            render_pipeline,
-            depth_texture,
-
-            time,
-            time_buffer,
-            time_bind_group,
-
-            world,
-            player,
-        }
-    }
-
-    pub fn render(
-        &self,
-        render_context: &RenderContext,
-        frame: &SwapChainTexture,
-        render_encoder: &mut CommandEncoder,
-    ) -> usize {
-        let mut triangle_count = 0;
-
-        let mut render_pass = render_encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
-            label: Some("render_pass"),
-            color_attachments: &[wgpu::RenderPassColorAttachment {
-                view: &frame.view,
-                resolve_target: None,
-                ops: wgpu::Operations {
-                    load: wgpu::LoadOp::Clear(wgpu::Color {
-                        r: 0.502,
-                        g: 0.663,
-                        b: 0.965,
-                        a: 1.0,
-                    }),
-                    store: true,
-                },
-            }],
-            depth_stencil_attachment: Some(wgpu::RenderPassDepthStencilAttachment {
-                view: &self.depth_texture.view,
-                depth_ops: Some(wgpu::Operations {
-                    load: wgpu::LoadOp::Clear(1.0),
-                    store: true,
-                }),
-                stencil_ops: None,
-            }),
-        });
-        render_pass.set_pipeline(&self.render_pipeline);
-
-        let texture_manager = render_context.texture_manager.as_ref().unwrap();
-        render_pass.set_bind_group(0, texture_manager.bind_group.as_ref().unwrap(), &[]);
-        render_pass.set_bind_group(1, &self.player.view.bind_group, &[]);
-        render_pass.set_bind_group(2, &self.time_bind_group, &[]);
-
-        triangle_count += self.world.render(&mut render_pass, &self.player.view);
-
-        triangle_count
-    }
-
-    pub fn input_mouse_button(
-        &mut self,
-        button: &MouseButton,
-        render_context: &RenderContext,
-        selected: Option<BlockType>,
-    ) {
-        if button == &MouseButton::Left {
-            self.world
-                .break_at_crosshair(render_context, &self.player.view.camera);
-        } else if button == &MouseButton::Right {
-            if let Some(selected) = selected {
-                self.world
-                    .place_at_crosshair(render_context, &self.player.view.camera, selected);
-            }
-        }
-    }
-
-    #[allow(clippy::collapsible_else_if)]
-    pub fn input_keyboard(&mut self, key_code: VirtualKeyCode, state: ElementState) {
-        let pressed = state == ElementState::Pressed;
-        match key_code {
-            VirtualKeyCode::W => self.player.forward_pressed = pressed,
-            VirtualKeyCode::S => self.player.backward_pressed = pressed,
-            VirtualKeyCode::A => self.player.left_pressed = pressed,
-            VirtualKeyCode::D => self.player.right_pressed = pressed,
-            VirtualKeyCode::F2 if pressed => self.player.creative ^= true,
-            VirtualKeyCode::Space => {
-                self.player.up_speed = match (pressed, self.player.creative) {
-                    // Creative
-                    (true, true) => 1.0,
-                    (false, true) => 0.0,
-
-                    // Not creative
-                    (true, false) => {
-                        // TODO Don't allow player to jump in mid-air
-                        0.6
-                    }
-                    (false, false) => self.player.up_speed,
-                };
-            }
-            VirtualKeyCode::LShift if self.player.creative => {
-                self.player.up_speed = if pressed { -1.0 } else { 0.0 }
-            }
-            VirtualKeyCode::LControl => self.player.sprinting = pressed,
-            _ => (),
-        }
-    }
-
-    pub fn update(&mut self, dt: Duration, render_time: Duration, render_context: &RenderContext) {
-        self.player.update_position(dt, &self.world);
-
-        self.world
-            .update(render_context, dt, render_time, &self.player.view.camera);
-
-        self.player.view.update_view_projection(render_context);
-
-        self.time.time += dt.as_secs_f32();
-        render_context.queue.write_buffer(
-            &self.time_buffer,
-            0,
-            &bytemuck::cast_slice(&[self.time]),
-        );
-    }
-
-    pub fn resize(&mut self, render_context: &RenderContext, new_size: PhysicalSize<u32>) {
-        // TODO Move this to View
-        self.player
-            .view
-            .projection
-            .resize(new_size.width, new_size.height);
-
-        self.depth_texture = Texture::create_depth_texture(render_context, "depth_texture");
-    }
-}

src/world/chunk.rs

@@ -21,7 +21,7 @@ use serde::{
     ser::SerializeSeq,
     Deserialize, Serialize, Serializer,
 };
-use wgpu::BufferUsage;
+use wgpu::{BufferUsage, RenderPass};
 
 pub const CHUNK_SIZE: usize = 32;
 pub const CHUNK_ISIZE: isize = CHUNK_SIZE as isize;
@@ -93,6 +93,25 @@ impl<'de> Deserialize<'de> for Chunk {
 }
 
 impl Chunk {
+    pub fn render<'a>(
+        &'a self,
+        render_pass: &mut RenderPass<'a>,
+        position: &Point3<isize>,
+        view: &View,
+    ) -> usize {
+        if !self.is_visible(position * CHUNK_ISIZE, &view) {
+            // Frustrum culling
+            0
+        } else if let Some(buffers) = &self.buffers {
+            buffers.apply_buffers(render_pass);
+            buffers.draw_indexed(render_pass)
+        } else {
+            // Not loaded
+            println!("Trying to render non-loaded chunk {:?}", position);
+            0
+        }
+    }
+
     pub fn generate(&mut self, chunk_x: isize, chunk_y: isize, chunk_z: isize) {
         let fbm = noise::Fbm::new();
 

src/world/mod.rs

@@ -1,6 +1,7 @@
 pub mod block;
 pub mod chunk;
 pub mod face_flags;
+pub mod npc;
 pub mod quad;
 
 use std::{
@@ -10,19 +11,32 @@ use std::{
 
 use crate::{
     camera::Camera,
-    npc::Npc,
     render_context::RenderContext,
+    texture::Texture,
+    time::Time,
+    vertex::{BlockVertex, Vertex},
     view::View,
     world::{
         block::{Block, BlockType},
         chunk::{Chunk, CHUNK_ISIZE},
+        npc::Npc,
     },
 };
 use ahash::AHashMap;
 use cgmath::{EuclideanSpace, InnerSpace, Point3, Vector3};
-use wgpu::RenderPass;
+use wgpu::{
+    util::{BufferInitDescriptor, DeviceExt},
+    BindGroup, Buffer, CommandEncoder, RenderPipeline, SwapChainTexture,
+};
 
 pub struct World {
+    pub render_pipeline: RenderPipeline,
+    pub depth_texture: Texture,
+
+    pub time: Time,
+    pub time_buffer: Buffer,
+    pub time_bind_group: BindGroup,
+
     pub npc: Npc,
 
     pub chunks: AHashMap<Point3<isize>, Chunk>,
@@ -50,6 +64,13 @@ impl World {
         render_time: Duration,
         camera: &Camera,
     ) {
+        self.time.time += dt.as_secs_f32();
+        render_context.queue.write_buffer(
+            &self.time_buffer,
+            0,
+            &bytemuck::cast_slice(&[self.time]),
+        );
+
         self.update_highlight(render_context, camera);
 
         // Queue up new chunks for loading, if necessary
@@ -147,33 +168,58 @@ impl World {
         }
     }
 
-    pub fn render<'a>(&'a self, render_pass: &mut RenderPass<'a>, view: &View) -> usize {
+    pub fn render<'a>(
+        &'a self,
+        render_context: &RenderContext,
+        render_encoder: &mut CommandEncoder,
+        frame: &SwapChainTexture,
+        view: &View,
+    ) -> usize {
+        let mut render_pass = render_encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
+            label: Some("render_pass"),
+            color_attachments: &[wgpu::RenderPassColorAttachment {
+                view: &frame.view,
+                resolve_target: None,
+                ops: wgpu::Operations {
+                    load: wgpu::LoadOp::Clear(wgpu::Color {
+                        r: 0.502,
+                        g: 0.663,
+                        b: 0.965,
+                        a: 1.0,
+                    }),
+                    store: true,
+                },
+            }],
+            depth_stencil_attachment: Some(wgpu::RenderPassDepthStencilAttachment {
+                view: &self.depth_texture.view,
+                depth_ops: Some(wgpu::Operations {
+                    load: wgpu::LoadOp::Clear(1.0),
+                    store: true,
+                }),
+                stencil_ops: None,
+            }),
+        });
+        render_pass.set_pipeline(&self.render_pipeline);
+
+        let texture_manager = render_context.texture_manager.as_ref().unwrap();
+        render_pass.set_bind_group(0, texture_manager.bind_group.as_ref().unwrap(), &[]);
+        render_pass.set_bind_group(1, &view.bind_group, &[]);
+        render_pass.set_bind_group(2, &self.time_bind_group, &[]);
+
         let mut triangle_count = 0;
 
         for (position, chunk) in &self.chunks {
-            // TODO Reimplement frustrum culling
+            triangle_count += chunk.render(&mut render_pass, position, view);
-            if !chunk.is_visible(position * CHUNK_ISIZE, &view) {
-                continue;
         }
 
-            if let Some(buffers) = chunk.buffers.as_ref() {
+        triangle_count += self.npc.render(&mut render_pass);
-                buffers.apply_buffers(render_pass);
-                triangle_count += buffers.draw_indexed(render_pass);
-            }
-        }
-
-        let buffers = self.npc.geometry_buffers.as_ref().unwrap();
-        buffers.apply_buffers(render_pass);
-        triangle_count += buffers.draw_indexed(render_pass);
 
         triangle_count
     }
-}
 
-impl World {
+    pub fn new(render_context: &RenderContext, view: &View) -> Self {
-    pub fn new(render_context: &RenderContext) -> Self {
         let chunks = AHashMap::new();
-        let mut npc = Npc::load();
+        let mut npc = Npc::new();
         npc.load_geometry(render_context);
 
         let chunk_database = sled::Config::new()
@@ -183,10 +229,118 @@ impl World {
             .open()
             .unwrap();
 
+        let time = Time::new();
+
+        let time_buffer = render_context
+            .device
+            .create_buffer_init(&BufferInitDescriptor {
+                label: Some("time_buffer"),
+                contents: bytemuck::cast_slice(&[time]),
+                usage: wgpu::BufferUsage::UNIFORM | wgpu::BufferUsage::COPY_DST,
+            });
+
+        let time_bind_group_layout =
+            render_context
+                .device
+                .create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
+                    entries: &[wgpu::BindGroupLayoutEntry {
+                        binding: 0,
+                        visibility: wgpu::ShaderStage::VERTEX | wgpu::ShaderStage::FRAGMENT,
+                        ty: wgpu::BindingType::Buffer {
+                            ty: wgpu::BufferBindingType::Uniform,
+                            has_dynamic_offset: false,
+                            min_binding_size: None,
+                        },
+                        count: None,
+                    }],
+                    label: Some("time_bind_group_layout"),
+                });
+
+        let time_bind_group = render_context
+            .device
+            .create_bind_group(&wgpu::BindGroupDescriptor {
+                layout: &time_bind_group_layout,
+                entries: &[wgpu::BindGroupEntry {
+                    binding: 0,
+                    resource: time_buffer.as_entire_binding(),
+                }],
+                label: Some("time_bind_group"),
+            });
+
+        let texture_manager = render_context.texture_manager.as_ref().unwrap();
+        let render_pipeline_layout =
+            render_context
+                .device
+                .create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
+                    label: Some("render_pipeline_layout"),
+                    push_constant_ranges: &[],
+                    bind_group_layouts: &[
+                        &texture_manager.bind_group_layout,
+                        &view.bind_group_layout,
+                        &time_bind_group_layout,
+                    ],
+                });
+
+        let shader = render_context.device.create_shader_module(
+            &(wgpu::ShaderModuleDescriptor {
+                label: Some("shader"),
+                flags: wgpu::ShaderFlags::all(),
+                source: wgpu::ShaderSource::Wgsl(include_str!("../shaders/world.wgsl").into()),
+            }),
+        );
+
+        let render_pipeline =
+            render_context
+                .device
+                .create_render_pipeline(&wgpu::RenderPipelineDescriptor {
+                    label: Some("Render Pipeline"),
+                    layout: Some(&render_pipeline_layout),
+                    vertex: wgpu::VertexState {
+                        module: &shader,
+                        entry_point: "main",
+                        buffers: &[BlockVertex::descriptor()],
+                    },
+                    fragment: Some(wgpu::FragmentState {
+                        module: &shader,
+                        entry_point: "main",
+                        targets: &[wgpu::ColorTargetState {
+                            format: render_context.swap_chain_descriptor.format,
+                            blend: Some(wgpu::BlendState {
+                                alpha: wgpu::BlendComponent::REPLACE,
+                                color: wgpu::BlendComponent::REPLACE,
+                            }),
+                            write_mask: wgpu::ColorWrite::ALL,
+                        }],
+                    }),
+                    primitive: wgpu::PrimitiveState {
+                        cull_mode: Some(wgpu::Face::Back),
+                        polygon_mode: wgpu::PolygonMode::Fill,
+                        ..Default::default()
+                    },
+                    depth_stencil: Some(wgpu::DepthStencilState {
+                        format: Texture::DEPTH_FORMAT,
+                        depth_write_enabled: true,
+                        depth_compare: wgpu::CompareFunction::Less,
+                        stencil: wgpu::StencilState::default(),
+                        bias: wgpu::DepthBiasState::default(),
+                    }),
+                    multisample: wgpu::MultisampleState::default(),
+                });
+
+        let depth_texture = Texture::create_depth_texture(render_context, "depth_texture");
+
         Self {
-            chunks,
+            render_pipeline,
+
+            time,
+            time_buffer,
+            time_bind_group,
+
+            depth_texture,
+
             npc,
 
+            chunks,
             chunk_database,
             chunk_load_queue: VecDeque::new(),
             chunk_save_queue: VecDeque::new(),

src/world/npc.rs

@@ -2,7 +2,7 @@ extern crate gltf;
 extern crate wgpu;
 
 use cgmath::Vector3;
-use wgpu::BufferUsage;
+use wgpu::{BufferUsage, RenderPass};
 
 use crate::{
     geometry::{Geometry, GeometryBuffers},
@@ -19,7 +19,7 @@ pub struct Npc {
 }
 
 impl Npc {
-    pub fn load() -> Self {
+    pub fn new() -> Self {
         let position: Vector3<f32> = Vector3::new(0.0, 0.0, 0.0);
         let scale: Vector3<f32> = Vector3::new(0.0, 0.0, 0.0);
         let rotation: Vector3<f32> = Vector3::new(0.0, 0.0, 0.0);
@@ -71,4 +71,10 @@ impl Npc {
             BufferUsage::empty(),
         ));
     }
+
+    pub fn render<'a>(&'a self, render_pass: &mut RenderPass<'a>) -> usize {
+        let buffers = self.geometry_buffers.as_ref().unwrap();
+        buffers.apply_buffers(render_pass);
+        buffers.draw_indexed(render_pass)
+    }
 }