Update the camera correctly each frame

src/main.rs

@@ -1,6 +1,8 @@
 mod camera;
 mod renderer;
 
+use std::time::Instant;
+
 use anyhow::Result;
 use crawl::winit::event::{Event, WindowEvent};
 use renderer::VoxelRenderer;
@@ -39,6 +41,7 @@ fn main() -> Result<()> {
     let renderer = VoxelRenderer::new(&context, &camera_controller)?;
     let passes: Vec<Box<dyn crawl::Pass>> = vec![Box::new(renderer)];
 
+    let mut last_render_time = Instant::now();
     event_loop.run(|event, elwt| match event {
         Event::WindowEvent { window_id, event } if window_id == context.window.id() => {
             if context.handle_window_event(&event, elwt) {
@@ -50,6 +53,13 @@ fn main() -> Result<()> {
             }
 
             if let WindowEvent::RedrawRequested = event {
+                let now = Instant::now();
+                let dt = now - last_render_time;
+                last_render_time = now;
+
+                camera_controller.update(dt);
+                camera_controller.update_buffer(&context);
+
                 if let Err(err) = context.render(passes.as_slice()) {
                     log::error!("{err:?}");
                 }