controls

src/game.rs

@@ -1,18 +1,34 @@
 use glium::{Surface, uniform};
 use glium::glutin::{
-  event::{Event, WindowEvent, VirtualKeyCode},
+  event::{Event, WindowEvent, DeviceEvent, VirtualKeyCode},
   event_loop::{EventLoop, ControlFlow},
 };
+use std::time::Instant;
 
 mod assets;
 mod display;
 mod shaders;
 mod camera;
+mod controller;
 
 use assets::Assets;
 use display::init_display;
 use shaders::{Programs, chunk::Vertex as ChunkVertex};
 use camera::Camera;
+use controller::Controls;
+
+struct State {
+  pub camera: Camera,
+  pub controls: Controls, 
+}
+impl State {
+  pub fn init() -> Self {
+    Self {
+      camera: Camera::default(),
+      controls: Controls::default(),
+    }
+  }
+}
 
 pub fn run() {
   log::info!("starting up");
@@ -23,8 +39,8 @@ pub fn run() {
   let programs = Programs::compile_all(&display);
   log::info!("loading assets");
   let assets = Assets::load_all_sync(&display);
-  log::info!("init camera");
-  let mut camera = Camera::default();
+  log::info!("init game state");
+  let mut state = State::init();
   log::info!("game loaded");
 
   //=======================
@@ -35,56 +51,42 @@ pub fn run() {
   let vertex_buffer = glium::VertexBuffer::new(&display, &shape).unwrap();
   //=======================
 
-  event_loop.run(move |ev, _, control_flow| {
-    #[allow(clippy::single_match, clippy::collapsible_match)]
-    match ev {
-      Event::WindowEvent { event, .. } => match event {
-        WindowEvent::CloseRequested => {
-          log::info!("exit requested");
-          *control_flow = ControlFlow::Exit;
-          return
-        },
-        WindowEvent::KeyboardInput { input, .. } => {
-          match input.virtual_keycode {
-            Some(VirtualKeyCode::Up) => {
-              camera.pitch += 0.01;
-            }
-            Some(VirtualKeyCode::Down) => {
-              camera.pitch -= 0.01;
-            }
-            Some(VirtualKeyCode::Right) => {
-              camera.yaw -= 0.01;
-            }
-            Some(VirtualKeyCode::Left) => {
-              camera.yaw += 0.01;
-            }
+  let mut last_render = Instant::now();
 
-            Some(VirtualKeyCode::W) => {
-              camera.position[2] += 0.01;
-            }
-            Some(VirtualKeyCode::S) => {
-              camera.position[2] -= 0.01;
-            }
-            Some(VirtualKeyCode::A) => {
-              camera.position[0] -= 0.01;
-            }
-            Some(VirtualKeyCode::D) => {
-              camera.position[0] += 0.01;
-            }
-
-            _ => ()
-          }
+  event_loop.run(move |event, _, control_flow| {
+    *control_flow = ControlFlow::Poll;
+    match event {
+      Event::MainEventsCleared => (),
+      Event::DeviceEvent {
+        event: DeviceEvent::MouseMotion{ delta, },
+        ..
+      } => {
+        state.controls.process_mouse_input(delta.0, delta.1);
+      }
+      Event::WindowEvent { event, .. } => {
+        match event {
+          WindowEvent::CloseRequested => {
+            log::info!("exit requested");
+            *control_flow = ControlFlow::Exit;
+            return
+          },
+          _ => return
         }
-        _ => ()
       },
-      _ => ()
+      _ => return
     }
     
+    let now = Instant::now();
+    let dt = (now - last_render).as_secs_f32();
+    last_render = now;
+
+    let actions = state.controls.calculate(dt);
+    actions.apply_to_camera(&mut state.camera);
+
     let mut target = display.draw();
     let target_dimensions = target.get_dimensions();
-    camera.update_direction();
-    let perspective = camera.perspective_matrix(target_dimensions);
-    let view = camera.view_matrix();
+    let perspective = state.camera.perspective_matrix(target_dimensions);
+    let view = state.camera.view_matrix();
     target.clear_color_and_depth((0.5, 0.5, 1., 1.), 1.);
     target.draw(
       &vertex_buffer,

src/game/controller.rs

@@ -0,0 +1,89 @@
+use glium::glutin::event::{VirtualKeyCode, ElementState};
+use crate::game::camera::Camera;
+
+#[derive(Default, Clone, Copy)]
+pub struct InputAmounts {
+  move_x: f32,
+  move_y: f32,
+  move_z: f32,
+  look_h: f32,
+  look_v: f32,
+}
+
+pub struct Actions {
+  movement: [f32; 3],
+  rotation: [f32; 2],
+}
+impl Actions {
+  pub fn apply_to_camera(&self, camera: &mut Camera) {
+    //Apply movement
+    for v in camera.position.iter_mut().zip(self.movement) {
+      *v.0 += v.1;
+    }
+    //Apply rotation
+    camera.yaw += self.rotation[0];
+    camera.pitch += self.rotation[1];
+    camera.update_direction();
+  }
+}
+
+pub struct Controls {
+  inputs: InputAmounts,
+  pub speed: f32,
+  pub sensitivity: f32,
+}
+impl Controls {
+  pub fn process_mouse_input(&mut self, dx: f64, dy: f64) {
+    self.inputs.look_h += dx as f32;
+    self.inputs.look_v += dy as f32;
+  }
+  pub fn process_keyboard_input(&mut self, key: VirtualKeyCode, state: ElementState) {
+    if state != ElementState::Pressed { return }
+    match key {
+      VirtualKeyCode::W | VirtualKeyCode::Up => {
+        self.inputs.move_z += 1.;
+      }
+      VirtualKeyCode::S | VirtualKeyCode::Down => {
+        self.inputs.move_z -= 1.;
+      }
+      VirtualKeyCode::A | VirtualKeyCode::Left => {
+        self.inputs.move_x -= 1.;
+      }
+      VirtualKeyCode::D | VirtualKeyCode::Right => {
+        self.inputs.move_x += 1.;
+      }
+      VirtualKeyCode::Space => {
+        self.inputs.move_y += 1.;
+      }
+      VirtualKeyCode::LShift => {
+        self.inputs.move_y -= 1.;
+      }
+      _ => ()
+    }
+  }
+  pub fn calculate(&mut self, dt: f32) -> Actions {
+    let mut movement = {
+      let magnitude = (self.inputs.move_x.powi(2) + self.inputs.move_y.powi(2) + self.inputs.move_z.powi(2)).sqrt();
+      [
+        dt * self.speed * (self.inputs.move_x / magnitude), 
+        dt * self.speed * (self.inputs.move_y / magnitude), 
+        dt * self.speed * (self.inputs.move_z / magnitude)
+      ]
+    };
+    let rotation = [
+      dt * self.inputs.look_h * self.sensitivity,
+      dt * self.inputs.look_v * self.sensitivity
+    ];
+    self.inputs = Default::default();
+    Actions { movement, rotation }
+  }
+}
+impl Default for Controls {
+  fn default() -> Self {
+    Self {
+      inputs: Default::default(),
+      speed: 1.,
+      sensitivity: 1.,
+    }
+  }
+}

src/game/display.rs

@@ -7,7 +7,8 @@ use glium::glutin::{
 };
 
 pub fn init_display(event_loop: &EventLoop<()>) -> Display {
-  let wb = WindowBuilder::new();
+  let wb = WindowBuilder::new()
+    .with_maximized(true);
   let cb = ContextBuilder::new()
     .with_depth_buffer(24)
     .with_gl_profile(GlProfile::Core);

src/logging.rs

@@ -7,7 +7,7 @@ use std::io::Write;
 pub fn init() {
   let mut env = Env::default();
   if cfg!(debug_assertions) {
-    env = env.filter_or("RUST_LOG", "info");
+    env = env.filter_or("RUST_LOG", "trace");
   }
   Builder::from_env(env)
     .format(|buf, record| {