Bam! Camera movement, pure jank implementation but on the right track

src/camera.rs

@@ -3,6 +3,7 @@ use winit::event::{MouseScrollDelta, VirtualKeyCode, ElementState};
 use winit::dpi::{PhysicalPosition, LogicalPosition};
 use std::time::{Duration, Instant};
 use std::f32::consts::FRAC_PI_2;
+use crate::render::OPENGL_TO_WGPU_MATRIX;
 
 #[derive(Clone, Copy, Debug, PartialEq)]
 pub struct Camera {
@@ -28,8 +29,8 @@ impl Camera {
         }
     }
 
-    pub fn calc_matrix(&self) -> Matrix4<f32> {
+    pub fn calc_matrix(&self, projection: cgmath::Matrix4<f32>) -> Matrix4<f32> {
-        Matrix4::look_at_dir(
+        let mx_view = Matrix4::look_at_dir(
             self.position,
             Vector3::new(
                 self.yaw.0.cos(),
@@ -37,7 +38,9 @@ impl Camera {
                 self.yaw.0.sin(),
             ).normalize(),
             Vector3::unit_y(),
-        )
+        );
+        let mx_correction = OPENGL_TO_WGPU_MATRIX;
+        mx_correction * projection * mx_view
     }
 }
 
@@ -123,10 +126,7 @@ impl CameraController {
         };
     }
 
-    pub fn update_camera(&mut self, camera: &mut Camera, dt: Duration) {
+    pub fn update_camera(&mut self, camera: &mut Camera, dt: f32) {
-
-
-        let dt = dt.as_secs_f32();
 
         // Move forward/backward and left/right
         let (yaw_sin, yaw_cos) = camera.yaw.0.sin_cos();

src/components.rs

@@ -3,8 +3,17 @@ use std::sync::Arc;
 use rapier3d::dynamics::{RigidBody, RigidBodyHandle};
 use rapier3d::geometry::ColliderHandle;
 use rapier3d::geometry::Collider as r3dCollider;
+use std::time::{Duration, Instant};
 
 // a component is any type that is 'static, sized, send and sync
+
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub struct LoopState {
+    pub delta_time: Duration,
+    pub start_time: Instant,
+    pub step_size: f32,
+}
+
 #[derive(Clone, Copy, Debug, PartialEq)]
 pub struct Position {
     pub x: f32,

src/main.rs

@@ -30,10 +30,10 @@ use winit::{
 use gilrs::Event as GilEvent;
 
 use crate::camera::{CameraController, Camera};
-use crate::components::{Collider, Color, Physics, Position};
+use crate::components::{Collider, Color, Physics, Position, LoopState};
 use crate::physics::PhysicsState;
 use crate::render::Renderer;
-use crate::owned_event::TrEventExtension;
+use crate::owned_event::{OwnedEventExtension, OwnedEvent};
 use gilrs::{Gamepad, Gilrs};
 use rapier3d::counters::Timer;
 
@@ -85,12 +85,10 @@ fn main() {
         (local_pool, spawner)
     };
 
-    // Schedule for the render systen
     let mut render_schedule = Schedule::builder()
         .add_system(render::render_test_system())
         .build();
 
-    // TODO schedule for the update system and others
     let mut update_schedule = Schedule::builder()
         .add_system(physics::update_camera_system())
         .add_system(physics::run_physics_system())
@@ -98,7 +96,11 @@ fn main() {
         // next system here, gamelogic update system?
         .build();
 
-    let event_loop = EventLoop::<TrEventExtension>::with_user_event();
+    let mut event_schedule = Schedule::builder()
+        .add_system(owned_event::event_dispatch_system())
+        .build();
+
+    let event_loop = EventLoop::<OwnedEventExtension>::with_user_event();
     let mut builder = winit::window::WindowBuilder::new();
     builder = builder.with_title("MVGE");
 
@@ -126,10 +128,15 @@ fn main() {
     resources.insert(physics_state);
     resources.insert(physics_pipeline);
 
-    resources.insert(CameraController::new(1.0, 1.0));
+    resources.insert(LoopState {
-    resources.insert(Instant::now());
+        delta_time: Default::default(),
+        start_time: Instant::now(),
+        step_size: 0.005,
+    });
 
 
+    resources.insert(Vec::<OwnedEvent<OwnedEventExtension>>::new());
+
     let event_loop_proxy = event_loop.create_proxy();
 
     std::thread::spawn(move || {
@@ -148,7 +155,7 @@ fn main() {
             while let Some(GilEvent { id, event, time }) = gilrs.next_event() {
                 println!("{:?} New event from {}: {:?}", time, id, event);
                 active_gamepad = Some(id);
-                event_loop_proxy.send_event(TrEventExtension::GamepadEvent {
+                event_loop_proxy.send_event(OwnedEventExtension::GamepadEvent {
                     gil_event: GilEvent { id, event, time }
                 }).ok();
             }
@@ -164,19 +171,15 @@ fn main() {
         }
     });
 
-
-
-    let step_size: f32 = 0.005;
     let mut elapsed_time: f32 = { // deltatime since last frame
-        let last_frame = resources.get::<Instant>().unwrap();
+        let loop_state = resources.get::<LoopState>().unwrap();
-        last_frame.elapsed()
+        loop_state.start_time.elapsed()
     }.as_secs_f32();
 
     let mut delta_time: f32 = 0.0;
     let mut accumulator_time: f32 = 0.0;
     let mut current_time: f32 = elapsed_time;
 
-
     event_loop.run(move |event, _, control_flow| {
         // Artificially slows the loop rate to 10 millis
         // This is called after redraw events cleared
@@ -184,12 +187,17 @@ fn main() {
         *control_flow = ControlFlow::Poll;
 
         match event {
+            event::Event::NewEvents(cause) => {
+                event_schedule.execute(&mut world, &mut resources);
+                resources.get_mut::<Vec<OwnedEvent<OwnedEventExtension>>>()
+                    .unwrap().clear();
+            }
             event::Event::MainEventsCleared => {
 
-                elapsed_time = { // deltatime since last frame
+                let (step_size, elapsed_time) = { // deltatime since last frame
-                    let last_frame = resources.get::<Instant>().unwrap();
+                    let loop_state = resources.get::<LoopState>().unwrap();
-                    last_frame.elapsed()
+                    (loop_state.step_size, loop_state.start_time.elapsed().as_secs_f32())
-                }.as_secs_f32();
+                };
                 delta_time = elapsed_time - current_time;
                 current_time = elapsed_time;
                 if delta_time > 0.02 {
@@ -197,35 +205,15 @@ fn main() {
                 }
                 accumulator_time += delta_time;
 
-
+                while ((accumulator_time - step_size) >= step_size) {
-                let dt = { // deltatime since last frame
+                    accumulator_time -= step_size;
-                    let last_frame = resources.get::<Instant>().unwrap();
+                    // ==== DELTA TIME LOCKED ====
-                    last_frame.elapsed()
+                    update_schedule.execute(&mut world, &mut resources);
-                };
-
-                update_schedule.execute(&mut world, &mut resources);
-
-                // ask for a redraw every 20 millis
-                if dt > Duration::from_millis(20) {
-
                 }
 
-                // update the world time here for next update
+                // ==== FPS LOCKED ====
-                resources.insert(Instant::now());
-
                 render_schedule.execute(&mut world, &mut resources);
             }
-            event::Event::DeviceEvent {
-                event: MouseMotion { delta },
-                ..
-            } => {
-                resources
-                    .get_mut::<Renderer>()
-                    .unwrap()
-                    .cam_look_delta((delta.0, delta.1));
-
-                //swap_chain = device.create_swap_chain(&surface, &sc_desc);
-            }
             // Resizing will queue a request_redraw
             event::Event::WindowEvent {
                 event: WindowEvent::Resized(size),
@@ -239,51 +227,37 @@ fn main() {
                     .get_mut::<Renderer>()
                     .unwrap()
                     .resize(width, height);
-
-                //swap_chain = device.create_swap_chain(&surface, &sc_desc);
             }
-            event::Event::WindowEvent { event, .. } => match event {
+            event::Event::WindowEvent { event: WindowEvent::CloseRequested, .. } => {
-                WindowEvent::KeyboardInput {
+                *control_flow = ControlFlow::Exit
-                    input:
+            }
-                        event::KeyboardInput {
-                            virtual_keycode: Some(event::VirtualKeyCode::Escape),
-                            state: event::ElementState::Pressed,
-                            ..
-                        },
-                    ..
-                }
-                | WindowEvent::CloseRequested => {
-                    *control_flow = ControlFlow::Exit;
-                }
-                _ => {
-                    //renderer.update(event);
-                }
-            },
             event::Event::RedrawRequested(_) => {
                 // Call the render system
                 render_schedule.execute(&mut world, &mut resources);
             }
             _ => {}
         }
+
+        resources.get_mut::<Vec<OwnedEvent<OwnedEventExtension>>>()
+            .unwrap().push(event.into());
     });
 }
 
 pub fn entity_loading(world: &mut World, renderer: &mut Renderer) {
     let monkey_mesh = renderer.load_mesh_to_buffer("./resources/monkey.obj");
 
-
+    let camera_ent: Entity = world.push((
-
+        Camera {
-    // let camera_ent: Entity = world.push((
+            position: Point3 {
-    //     Camera {
+                x: 5.0,
-    //         position: Point3 {
+                y: 5.0,
-    //             x: 5.0,
+                z: 5.0
-    //             y: 5.0,
+            },
-    //             z: 5.0
+            yaw: Rad(0.0),
-    //         },
+            pitch: Rad(-75.0)
-    //         yaw: Rad(45.0),
+        },
-    //         pitch: Rad(45.0)
+        CameraController::new(1.0, 1.0),
-    //     }
+    ));
-    // ));
 
     let light_entity: Entity = world.push((
         cgmath::Point3 {

src/owned_event.rs

@@ -1,17 +1,25 @@
-use winit::window::{WindowId, Theme};
-use winit::event::{WindowEvent, DeviceId, DeviceEvent, KeyboardInput, ModifiersState, MouseScrollDelta, TouchPhase, ElementState, MouseButton, AxisId, Touch, StartCause, Event};
-use winit::dpi::{PhysicalPosition, PhysicalSize};
-use gilrs::Event as GilEvent;
 use std::path::PathBuf;
 
+use gilrs::Event as GilEvent;
+use legion::world::SubWorld;
+use legion::*;
+use winit::dpi::{PhysicalPosition, PhysicalSize};
+use winit::event::DeviceEvent::MouseMotion;
+use winit::event::{
+    AxisId, DeviceEvent, DeviceId, ElementState, Event, KeyboardInput, ModifiersState, MouseButton,
+    MouseScrollDelta, StartCause, Touch, TouchPhase, WindowEvent,
+};
+use winit::window::{Theme, WindowId};
+
+use crate::camera::{Camera, CameraController};
+
 #[derive(Clone)]
-pub enum TrUIEvent<T> {
+pub enum OwnedUIEvent<T> {
-    UIEvent(T)
+    UIEvent(T),
 }
 
 #[derive(Clone)]
-pub enum TrEventExtension {
+pub enum OwnedEventExtension {
-
     /// Custom events here
     MouseHeldEvent {},
     KeyHeldEvent {},
@@ -21,8 +29,7 @@ pub enum TrEventExtension {
 }
 
 #[derive(Clone, Debug)]
-pub enum TrEvent<T> {
+pub enum OwnedEvent<T> {
-
     /// Custom events here
     MouseHeldEvent {},
     KeyHeldEvent {},
@@ -34,7 +41,7 @@ pub enum TrEvent<T> {
     NewEvents(StartCause),
     WindowEvent {
         window_id: WindowId,
-        event: TrWindowEvent,
+        event: OwnedWindowEvent,
     },
     DeviceEvent {
         device_id: DeviceId,
@@ -49,114 +56,127 @@ pub enum TrEvent<T> {
     LoopDestroyed,
 }
 
-
+impl<T> From<Event<'_, T>> for OwnedEvent<T> {
-impl<T> From<Event<'_, T>> for TrEvent<T> {
     fn from(event: Event<T>) -> Self {
         match event {
-            Event::NewEvents(cause) => {
+            Event::NewEvents(cause) => OwnedEvent::NewEvents(cause),
-                TrEvent::NewEvents(cause)
+            Event::WindowEvent {
-            },
+                window_id: window_id,
-            Event::WindowEvent { window_id: window_id, event: event } => {
+                event: event,
-                TrEvent::WindowEvent {
+            } => OwnedEvent::WindowEvent {
-                    window_id: window_id,
+                window_id: window_id,
-                    event: match event {
+                event: match event {
-                        WindowEvent::AxisMotion { device_id, axis, value } => {
+                    WindowEvent::AxisMotion {
-                            TrWindowEvent::AxisMotion { device_id, axis, value }
+                        device_id,
-                        },
+                        axis,
-                        WindowEvent::Resized(physical_size) => {
+                        value,
-                            TrWindowEvent::Resized(physical_size)
+                    } => OwnedWindowEvent::AxisMotion {
-                        }
+                        device_id,
-                        WindowEvent::Moved(physical_position) => {
+                        axis,
-                            TrWindowEvent::Moved(physical_position)
+                        value,
-                        }
+                    },
-                        WindowEvent::CloseRequested => {
+                    WindowEvent::Resized(physical_size) => OwnedWindowEvent::Resized(physical_size),
-                            TrWindowEvent::CloseRequested
+                    WindowEvent::Moved(physical_position) => {
-                        }
+                        OwnedWindowEvent::Moved(physical_position)
-                        WindowEvent::Destroyed => {
-                            TrWindowEvent::Destroyed
-                        }
-                        WindowEvent::DroppedFile(path_buf) => {
-                            TrWindowEvent::DroppedFile(path_buf)
-                        }
-                        WindowEvent::HoveredFile(path_buf) => {
-                            TrWindowEvent::HoveredFile(path_buf)
-                        }
-                        WindowEvent::HoveredFileCancelled => {
-                            TrWindowEvent::HoveredFileCancelled
-                        }
-                        WindowEvent::ReceivedCharacter(char) => {
-                            TrWindowEvent::ReceivedCharacter(char)
-                        }
-                        WindowEvent::Focused(bool) => {
-                            TrWindowEvent::Focused(bool)
-                        }
-                        WindowEvent::KeyboardInput { device_id: device_id, input: input, is_synthetic: is_synthetic } => {
-                            TrWindowEvent::KeyboardInput { device_id, input, is_synthetic }
-                        }
-                        WindowEvent::ModifiersChanged(modifiers_state) => {
-                            TrWindowEvent::ModifiersChanged(modifiers_state)
-                        }
-                        WindowEvent::CursorMoved { device_id: device_id, position: position, modifiers: modifiers } => {
-                            TrWindowEvent::CursorMoved { device_id, position, modifiers }
-                        }
-                        WindowEvent::CursorEntered { device_id: device_id } => {
-                            TrWindowEvent::CursorEntered { device_id }
-                        }
-                        WindowEvent::CursorLeft { device_id: device_id } => {
-                            TrWindowEvent::CursorLeft { device_id }
-                        }
-                        WindowEvent::MouseWheel { device_id: device_id, delta: delta, phase: phase, modifiers: modifiers } => {
-                            TrWindowEvent::MouseWheel { device_id, delta, phase, modifiers }
-                        }
-                        WindowEvent::MouseInput { device_id: device_id, state: state, button: button, modifiers: modifiers } => {
-                            TrWindowEvent::MouseInput { device_id, state, button, modifiers }
-                        }
-                        WindowEvent::TouchpadPressure { device_id: device_id, pressure: pressure, stage: stage } => {
-                            TrWindowEvent::TouchpadPressure { device_id, pressure, stage }
-                        }
-                        WindowEvent::Touch(touch) => {
-                            TrWindowEvent::Touch(touch)
-                        }
-                        WindowEvent::ScaleFactorChanged { scale_factor: scale_factor, new_inner_size: new_inner_size } => {
-                            TrWindowEvent::ScaleFactorChanged { scale_factor, new_inner_size: PhysicalSize { width: new_inner_size.width, height: new_inner_size.height } }
-                        }
-                        WindowEvent::ThemeChanged(theme) => {
-                            TrWindowEvent::ThemeChanged(theme)
-                        }
                     }
-                }
+                    WindowEvent::CloseRequested => OwnedWindowEvent::CloseRequested,
-            }
+                    WindowEvent::Destroyed => OwnedWindowEvent::Destroyed,
-            Event::DeviceEvent { device_id: device_id, event: event } => {
+                    WindowEvent::DroppedFile(path_buf) => OwnedWindowEvent::DroppedFile(path_buf),
-                TrEvent::DeviceEvent { device_id, event }
+                    WindowEvent::HoveredFile(path_buf) => OwnedWindowEvent::HoveredFile(path_buf),
-            }
+                    WindowEvent::HoveredFileCancelled => OwnedWindowEvent::HoveredFileCancelled,
-            Event::UserEvent(user_event) => {
+                    WindowEvent::ReceivedCharacter(char) => {
-                TrEvent::UserEvent(user_event)
+                        OwnedWindowEvent::ReceivedCharacter(char)
-            }
+                    }
-            Event::Suspended => {
+                    WindowEvent::Focused(bool) => OwnedWindowEvent::Focused(bool),
-                TrEvent::Suspended
+                    WindowEvent::KeyboardInput {
-            }
+                        device_id: device_id,
-            Event::Resumed => {
+                        input: input,
-                TrEvent::Resumed
+                        is_synthetic: is_synthetic,
-            }
+                    } => OwnedWindowEvent::KeyboardInput {
-            Event::MainEventsCleared => {
+                        device_id,
-                TrEvent::MainEventsCleared
+                        input,
-            }
+                        is_synthetic,
-            Event::RedrawRequested(window_id) => {
+                    },
-                TrEvent::RedrawRequested(window_id)
+                    WindowEvent::ModifiersChanged(modifiers_state) => {
-            }
+                        OwnedWindowEvent::ModifiersChanged(modifiers_state)
-            Event::RedrawEventsCleared => {
+                    }
-                TrEvent::RedrawEventsCleared
+                    WindowEvent::CursorMoved {
-            }
+                        device_id: device_id,
-            Event::LoopDestroyed => {
+                        position: position,
-                TrEvent::LoopDestroyed
+                        modifiers: modifiers,
-            }
+                    } => OwnedWindowEvent::CursorMoved {
+                        device_id,
+                        position,
+                        modifiers,
+                    },
+                    WindowEvent::CursorEntered {
+                        device_id: device_id,
+                    } => OwnedWindowEvent::CursorEntered { device_id },
+                    WindowEvent::CursorLeft {
+                        device_id: device_id,
+                    } => OwnedWindowEvent::CursorLeft { device_id },
+                    WindowEvent::MouseWheel {
+                        device_id: device_id,
+                        delta: delta,
+                        phase: phase,
+                        modifiers: modifiers,
+                    } => OwnedWindowEvent::MouseWheel {
+                        device_id,
+                        delta,
+                        phase,
+                        modifiers,
+                    },
+                    WindowEvent::MouseInput {
+                        device_id: device_id,
+                        state: state,
+                        button: button,
+                        modifiers: modifiers,
+                    } => OwnedWindowEvent::MouseInput {
+                        device_id,
+                        state,
+                        button,
+                        modifiers,
+                    },
+                    WindowEvent::TouchpadPressure {
+                        device_id: device_id,
+                        pressure: pressure,
+                        stage: stage,
+                    } => OwnedWindowEvent::TouchpadPressure {
+                        device_id,
+                        pressure,
+                        stage,
+                    },
+                    WindowEvent::Touch(touch) => OwnedWindowEvent::Touch(touch),
+                    WindowEvent::ScaleFactorChanged {
+                        scale_factor: scale_factor,
+                        new_inner_size: new_inner_size,
+                    } => OwnedWindowEvent::ScaleFactorChanged {
+                        scale_factor,
+                        new_inner_size: PhysicalSize {
+                            width: new_inner_size.width,
+                            height: new_inner_size.height,
+                        },
+                    },
+                    WindowEvent::ThemeChanged(theme) => OwnedWindowEvent::ThemeChanged(theme),
+                },
+            },
+            Event::DeviceEvent {
+                device_id: device_id,
+                event: event,
+            } => OwnedEvent::DeviceEvent { device_id, event },
+            Event::UserEvent(user_event) => OwnedEvent::UserEvent(user_event),
+            Event::Suspended => OwnedEvent::Suspended,
+            Event::Resumed => OwnedEvent::Resumed,
+            Event::MainEventsCleared => OwnedEvent::MainEventsCleared,
+            Event::RedrawRequested(window_id) => OwnedEvent::RedrawRequested(window_id),
+            Event::RedrawEventsCleared => OwnedEvent::RedrawEventsCleared,
+            Event::LoopDestroyed => OwnedEvent::LoopDestroyed,
         }
     }
 }
 
 #[derive(Debug, PartialEq, Clone)]
-pub enum TrWindowEvent {
+pub enum OwnedWindowEvent {
-
     Resized(PhysicalSize<u32>),
     Moved(PhysicalPosition<i32>),
     CloseRequested,
@@ -178,8 +198,12 @@ pub enum TrWindowEvent {
         #[deprecated = "Deprecated in favor of WindowEvent::ModifiersChanged"]
         modifiers: ModifiersState,
     },
-    CursorEntered { device_id: DeviceId },
+    CursorEntered {
-    CursorLeft { device_id: DeviceId },
+        device_id: DeviceId,
+    },
+    CursorLeft {
+        device_id: DeviceId,
+    },
     MouseWheel {
         device_id: DeviceId,
         delta: MouseScrollDelta,
@@ -210,4 +234,61 @@ pub enum TrWindowEvent {
         new_inner_size: PhysicalSize<u32>,
     },
     ThemeChanged(Theme),
-}
+}
+
+/// Because I am a glutton for punishment I am going to just do a mono-event-dispatch-magoooo
+#[system]
+#[write_component(Camera)]
+#[write_component(CameraController)]
+pub fn event_dispatch(
+    world: &mut SubWorld,
+    #[resource] event_stack: &mut Vec<OwnedEvent<OwnedEventExtension>>,
+) {
+    use winit::event::Event::DeviceEvent;
+
+    for event in event_stack {
+        match event {
+            OwnedEvent::DeviceEvent {
+                event: MouseMotion { delta },
+                ..
+            } => {
+                let mut query = <(&mut CameraController)>::query();
+                for (camera_controller) in query.iter_mut(world) {
+                    camera_controller.process_mouse(delta.0, delta.1);
+                }
+            }
+
+            OwnedEvent::DeviceEvent { device_id, event } => {
+                match event {
+                    winit::event::DeviceEvent::Key(keyboard_input) => {
+                        let mut query = <(&mut CameraController)>::query();
+                        for (camera_controller) in query.iter_mut(world) {
+                            camera_controller.process_keyboard(
+                                keyboard_input.virtual_keycode.unwrap(),
+                                keyboard_input.state,
+                            );
+                        }
+
+                        // match keyboard_input.virtual_keycode.unwrap() {
+                        //     VirtualKeyCode::A => {
+                        //         if keyboard_input.state == ElementState::Pressed {}
+                        //     }
+                        //     VirtualKeyCode::S => {
+                        //         if keyboard_input.state == ElementState::Pressed {}
+                        //     }
+                        //     VirtualKeyCode::P => {
+                        //         if keyboard_input.state == ElementState::Pressed {
+                        //             let data = world.write_resource::<VkProcessor>().read_compute_buffer(compute_buffer.clone());
+                        //             image::save_buffer(&Path::new("image.png"), data.as_slice(), (image_data.1).0, (image_data.1).1, image::RGBA(8));
+                        //         }
+                        //     }
+                        //     _ => ()
+                        // }
+                    }
+                    _ => {}
+                }
+            }
+            _ => {}
+        }
+    }
+}

src/physics.rs

@@ -7,7 +7,7 @@ use legion::*;
 
 use crate::render::{EntityUniforms, Renderer};
 use cgmath::Quaternion;
-use crate::components::{Collider, Physics, Mesh, Position};
+use crate::components::{Collider, Physics, Mesh, Position, LoopState};
 use crate::camera::{CameraController, Camera};
 use std::time::Instant;
 
@@ -83,16 +83,15 @@ pub fn run_physics(
 
 #[system]
 #[write_component(Camera)]
+#[write_component(CameraController)]
 pub fn update_camera(
     world: &mut SubWorld,
-    #[resource] camera_controller: &mut CameraController,
+    #[resource] loop_state: &mut LoopState,
-    #[resource] last_frame: &mut Instant,
 ) {
-    let mut query = <(&mut Camera)>::query();
+    let mut query = <(&mut Camera, &mut CameraController)>::query();
-    for (camera) in query.iter_mut(world) {
+    for (mut camera, controller) in query.iter_mut(world) {
-        //camera.update_camera()
+        controller.update_camera(&mut camera, loop_state.step_size)
     }
-
 }
 
 #[system]

src/render.rs

@@ -3,14 +3,17 @@ use std::{iter, num::NonZeroU32, ops::Range, rc::Rc};
 
 use bytemuck::__core::mem;
 use bytemuck::{Pod, Zeroable};
-use cgmath::{vec3, Decomposed, Deg, Euler, InnerSpace, Matrix4, Point3, Quaternion, Rotation3, Transform, Vector3, Rad};
+use cgmath::{
+    vec3, Decomposed, Deg, Euler, InnerSpace, Matrix4, Point3, Quaternion, Rad, Rotation3,
+    Transform, Vector3,
+};
 use futures::executor::LocalPool;
 use legion::world::SubWorld;
 use legion::*;
 use rapier3d::parry::motion::RigidMotionComposition;
 use wgpu::util::DeviceExt;
 use wgpu::{
-    BindGroup, BindGroupLayout, Buffer, Device, Instance, Queue, Surface, SwapChain,
+    BackendBit, BindGroup, BindGroupLayout, Buffer, Device, Instance, Queue, Surface, SwapChain,
     SwapChainDescriptor, SwapChainFrame, TextureView,
 };
 use winit::dpi::PhysicalSize;
@@ -69,43 +72,14 @@ pub struct Pass {
     uniform_buf: wgpu::Buffer,
 }
 
-pub struct Renderer {
-    swapchain: SwapChain,
-    swapchain_description: SwapChainDescriptor,
-    instance: Arc<Instance>,
-    device: Arc<Device>,
-    queue: Arc<Queue>,
-
-    size: PhysicalSize<u32>,
-    surface: Arc<Surface>,
-
-    lights_are_dirty: bool,
-    shadow_pass: Pass,
-    shadow_target_views: Vec<Arc<TextureView>>,
-    views_given: u32,
-
-    forward_pass: Pass,
-    forward_depth: wgpu::TextureView,
-
-    entity_bind_group_layout: BindGroupLayout,
-
-    light_uniform_buf: wgpu::Buffer,
-
-    camera_projection: Matrix4<f32>,
-}
-
 #[system]
+#[write_component(Camera)]
 #[write_component(Position)]
 #[write_component(Point3<f32>)]
 #[write_component(Mesh)]
 #[write_component(Color)]
 #[write_component(DirectionalLight)]
-pub fn render_test(
+pub fn render_test(world: &mut SubWorld, #[resource] renderer: &mut Renderer) {
-    world: &mut SubWorld,
-    #[resource] renderer: &mut Renderer,
-    #[resource] camera_controller: &mut CameraController,
-) {
-
     let mut encoder = renderer
         .device
         .create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });
@@ -113,6 +87,17 @@ pub fn render_test(
 
     let frame = renderer.get_current_frame();
 
+    let mut query = <(&mut Camera)>::query();
+    for (camera) in query.iter_mut(world) {
+        let matrix = camera.calc_matrix(renderer.camera_projection);
+        let mx_ref: &[f32; 16] = matrix.as_ref();
+        renderer.queue.write_buffer(
+            &renderer.forward_pass.uniform_buf,
+            0,
+            bytemuck::cast_slice(mx_ref),
+        );
+    }
+
     let mut query = <(&mut Position, &mut Mesh, &mut Color)>::query();
 
     let mut mesh_stack = Vec::new();
@@ -240,6 +225,31 @@ pub fn render_test(
     renderer.queue.submit(iter::once(encoder.finish()));
 }
 
+pub struct Renderer {
+    swapchain: SwapChain,
+    swapchain_description: SwapChainDescriptor,
+    instance: Arc<Instance>,
+    device: Arc<Device>,
+    queue: Arc<Queue>,
+
+    size: PhysicalSize<u32>,
+    surface: Arc<Surface>,
+
+    lights_are_dirty: bool,
+    shadow_pass: Pass,
+    shadow_target_views: Vec<Arc<TextureView>>,
+    views_given: u32,
+
+    forward_pass: Pass,
+    forward_depth: wgpu::TextureView,
+
+    entity_bind_group_layout: BindGroupLayout,
+
+    light_uniform_buf: wgpu::Buffer,
+
+    camera_projection: Matrix4<f32>,
+}
+
 impl Renderer {
     const MAX_LIGHTS: usize = 10;
     const SHADOW_FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Depth32Float;
@@ -250,71 +260,21 @@ impl Renderer {
     };
     const DEPTH_FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Depth32Float;
 
-    pub fn generate_matrix(aspect_ratio: f32) -> cgmath::Matrix4<f32> {
+    /// Generate a projection matrix with no look-at yet
+    pub fn generate_matrix(&self) -> cgmath::Matrix4<f32> {
         // Specifies the aspect ratio that determines the field of view in the x direction.
         // The aspect ratio is the ratio of x (width) to y (height).
-        let mx_projection = cgmath::perspective(cgmath::Deg(75f32), aspect_ratio, 1.0, 20.0);
+        cgmath::perspective(
-        let mx_view = cgmath::Matrix4::look_at(
+            cgmath::Deg(75f32),
-            cgmath::Point3::new(1.0f32, 1.0, 4.0),
+            self.size.width as f32 / self.size.height as f32,
-            cgmath::Point3::new(0.0f32, 0.0, 0.0),
+            1.0,
-            cgmath::Vector3::unit_z(),
+            20.0,
-        );
+        )
-
-        let mx_correction = OPENGL_TO_WGPU_MATRIX;
-        mx_correction * mx_projection * mx_view
-    }
-
-    pub fn cam_look_delta(&mut self, delta: (f64, f64)) {
-
-        // let mx_projection = cgmath::perspective(cgmath::Deg(45f32), aspect_ratio, 1.0, 20.0);
-        // let mx_view = cgmath::Matrix4::look_at(
-        //     cgmath::Point3::new(3.0f32, -9.0, 6.0),
-        //     cgmath::Point3::new(0f32, 0.0, 0.0),
-        //     cgmath::Vector3::unit_z(),
-        // );
-        // let mx_correction = OPENGL_TO_WGPU_MATRIX;
-        // let mx_total = mx_correction * mx_projection * mx_view;
-        //
-        // let rotation = Quaternion::from(Euler {
-        //     x: Deg(90.0),
-        //     y: Deg(45.0),
-        //     z: Deg(15.0),
-        // });
-        //
-        // Euler {
-        //     x: (),
-        //     y: (),
-        //     z: ()
-        // };
-        //
-        // let offset = cgmath::vec3(1.0, 1.0, 4.0);
-        // let transform = Decomposed {
-        //     disp: offset.clone(),
-        //     rot: Quaternion::from_axis_angle(offset.normalize(), Deg(50.0)),
-        //     scale: 1.0,
-        // };
-        //
-        // let mut q = Quaternion::from(self.camera_direction);
-        // q.v.z += delta.0 as f32;
-        // q.v.y += delta.1 as f32;
-        // //let q2 = Quaternion::from_angle_x(Deg(delta.0 as f32));
-        // //let q3 = Quaternion::from_angle_y(Deg(delta.1 as f32));
-        // let w = Matrix4::from(q);
-        // //mx_total = mx_total + w;
-        //
-        // self.camera_projection = transform.into();
-        // let mut mx_total = self.camera_projection.clone();
-        //
-        // let mx_ref: &[f32; 16] = mx_total.as_ref();
-        // self.queue.write_buffer(
-        //     &self.forward_pass.uniform_buf,
-        //     0,
-        //     bytemuck::cast_slice(mx_ref),
-        // );
     }
 
+    /// Get the next frame from the swapchain
+    /// (recreates if something funky goes on)
     pub fn get_current_frame(&mut self) -> SwapChainFrame {
-        // Update the renderers swapchain state
         match self.swapchain.get_current_frame() {
             Ok(frame) => frame,
             Err(_) => {
@@ -328,6 +288,8 @@ impl Renderer {
         }
     }
 
+    /// Create a bare vertex & indices buffer
+    /// TODO I really should remove this / consolidate it
     pub fn create_buffer(
         device: &wgpu::Device,
         indices: Vec<u32>,
@@ -352,6 +314,9 @@ impl Renderer {
         (vertex_buf, index_buf)
     }
 
+    /// When creating a light we have to give it a target view to render to
+    /// This is major danger scary since we have a 10 light limit, and only
+    /// 2 views created at this moment, need to smarten this up
     pub fn create_light(&mut self) -> DirectionalLight {
         let target = self
             .shadow_target_views
@@ -375,6 +340,7 @@ impl Renderer {
         }
     }
 
+    /// I don't know why the hell this is still in here
     pub fn create_plane(&self, size: f32) -> Mesh {
         let vertices = [
             vertex([size, -size, 0.0], [0.0, 0.0, 1.0]),
@@ -701,7 +667,12 @@ impl Renderer {
             })
             .collect::<Vec<_>>();
 
-        let mx_total = Self::generate_matrix(sc_desc.width as f32 / sc_desc.height as f32);
+        let mx_projection = cgmath::perspective(
+            cgmath::Deg(75f32), // FOV, might wanna hook this up somewhere
+            sc_desc.width as f32 / sc_desc.height as f32,
+            1.0,
+            20.0,
+        );
 
         let forward_pass = {
             // Create pipeline layout
@@ -758,7 +729,7 @@ impl Renderer {
 
             // I need to know the number of lights...
             let forward_uniforms = ForwardUniforms {
-                proj: *mx_total.as_ref(),
+                proj: *mx_projection.as_ref(),
                 //num_lights: [lights.len() as u32, 0, 0, 0],
                 num_lights: [2 as u32, 0, 0, 0],
             };
@@ -883,7 +854,7 @@ impl Renderer {
             surface,
             instance: Arc::new(instance),
             views_given: 0,
-            camera_projection: mx_total,
+            camera_projection: mx_projection,
         }
     }
 
@@ -903,7 +874,7 @@ impl Renderer {
             .create_swap_chain(&self.surface, &self.swapchain_description.clone());
 
         // update view-projection matrix
-        let mx_total = Self::generate_matrix(width as f32 / height as f32);
+        let mx_total = self.generate_matrix();
         let mx_ref: &[f32; 16] = mx_total.as_ref();
         self.queue.write_buffer(
             &self.forward_pass.uniform_buf,