diff options
Diffstat (limited to 'render/examples/bunnymark.rs')
| -rw-r--r-- | render/examples/bunnymark.rs | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/render/examples/bunnymark.rs b/render/examples/bunnymark.rs deleted file mode 100644 index 1e171c1..0000000 --- a/render/examples/bunnymark.rs +++ /dev/null @@ -1,165 +0,0 @@ -#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")] - -use std::{num::NonZeroU32, sync::Arc, time::Instant}; - -use alligator_render::{Instance, InstanceId, RenderWindowConfig, Renderer}; -use alligator_resources::texture::{ImageFormat, TextureId, TextureManager, TextureManagerConfig}; - -fn xorshift_plus(seed: &mut [u64; 2]) -> u64 { - let mut t = seed[0]; - let s = seed[1]; - - t ^= t << 23; - t ^= t >> 18; - t ^= s ^ (s >> 5); - - seed[0] = s; - seed[1] = t; - - t.wrapping_add(s) -} - -#[derive(Debug)] -struct State { - texture_id: TextureId, - bunnies: Vec<Bunny>, - previous_timestamp: Option<Instant>, - bad_frames: u8, - seed: [u64; 2], - stopped: bool, -} - -impl State { - fn new(texture_id: TextureId) -> Self { - Self { - texture_id, - bunnies: Vec::with_capacity(10_000_000), - previous_timestamp: None, - seed: [0x0D15EA5E8BADF00D, 0xDECAFBADDEADBEAF], - bad_frames: 0, - stopped: false, - } - } - - #[profiling::function] - fn update(&mut self, renderer: &mut Renderer) { - let Some(instant) = self.previous_timestamp else { - self.previous_timestamp = Some(Instant::now()); - return; - }; - - let frame_time = instant.elapsed(); - let fps = 1.0 / frame_time.as_secs_f32(); - - renderer.set_title(&format!( - "BunnyMark - {} bunnies - {} FPS", - self.bunnies.len(), - fps.round() - )); - - if fps < 15.0 { - self.bad_frames += 1; - if self.bad_frames == 3 { - self.stopped = true; - } - } else { - self.bad_frames = 0; - } - - self.previous_timestamp = Some(Instant::now()); - - if self.stopped { - return; - } - - for bunny in self.bunnies.iter_mut() { - let instance = renderer - .instances_mut() - .get_instance_mut(bunny.instance_id) - .unwrap(); - - instance.position[0] += bunny.velocity_x; - instance.position[1] += bunny.velocity_y; - - if !(-1.5..1.5).contains(&instance.position[0]) { - instance.position[0] = instance.position[0].clamp(-1.0, 1.0); - bunny.velocity_x = -bunny.velocity_x; - } - - if !(-0.75..0.75).contains(&instance.position[1]) { - instance.position[1] = instance.position[1].clamp(-0.5, 0.5); - bunny.velocity_y *= -0.90; - } - - bunny.velocity_y -= 0.005; - } - - for _ in 0..=(fps as u64 * 50) { - let texture_x = renderer.textures_mut().texture_x(self.texture_id).unwrap(); - let texture_y = renderer.textures_mut().texture_y(self.texture_id).unwrap(); - let texture_height = renderer - .textures_mut() - .texture_height(self.texture_id) - .unwrap(); - let texture_width = renderer - .textures_mut() - .texture_width(self.texture_id) - .unwrap(); - let instance_id = renderer.instances_mut().push_instance(Instance { - texture_coordinates: [texture_x, texture_y], - texture_size: [texture_width, texture_height], - size: [0.08, 0.08], - position: [-1.5, 0.70], - ..Default::default() - }); - - let velocity_x = (xorshift_plus(&mut self.seed) % 1_000_000) as f32 / 25_000_000.0; - let velocity_y = (xorshift_plus(&mut self.seed) % 1_000_000) as f32 / 25_000_000.0; - self.bunnies.push(Bunny { - instance_id, - velocity_x, - velocity_y, - }); - } - } -} - -#[derive(Debug, Clone, Copy)] -struct Bunny { - instance_id: InstanceId, - velocity_x: f32, - velocity_y: f32, -} - -fn main() { - #[cfg(feature = "profile-with-tracy")] - profiling::tracy_client::Client::start(); - profiling::register_thread!("main"); - - // configure the render window - let render_config = RenderWindowConfig { - title: "BunnyMark", - instance_capacity: 150_000, - default_width: NonZeroU32::new(1280).unwrap(), - default_height: NonZeroU32::new(720).unwrap(), - vsync: false, - low_power: false, - ..Default::default() - }; - - let texture_config = TextureManagerConfig { - initial_capacity: 1, - max_size: 10_000, - }; - - let bunny = include_bytes!("res/bunny.ff"); - let texture_manager = Arc::new(TextureManager::new(&texture_config)); - let mut renderer = Renderer::new(&render_config, texture_manager.clone()).unwrap(); - let texture_id = texture_manager - .load_from_memory(bunny, ImageFormat::Farbfeld) - .unwrap(); - renderer.textures_mut().load_texture(texture_id).unwrap(); - - let state = Box::leak(Box::new(State::new(texture_id))); - renderer.run(|r| state.update(r)); -} |
