diff options
Diffstat (limited to 'alligator_render/examples')
| -rw-r--r-- | alligator_render/examples/black.rs | 2 | ||||
| -rw-r--r-- | alligator_render/examples/bmp.rs | 2 | ||||
| -rw-r--r-- | alligator_render/examples/bunnymark.rs | 126 | ||||
| -rw-r--r-- | alligator_render/examples/res/bunny.ff | bin | 0 -> 8208 bytes |
4 files changed, 128 insertions, 2 deletions
diff --git a/alligator_render/examples/black.rs b/alligator_render/examples/black.rs index c66b080..622429f 100644 --- a/alligator_render/examples/black.rs +++ b/alligator_render/examples/black.rs @@ -17,5 +17,5 @@ fn main() { let renderer = Renderer::new(&config).unwrap(); println!("Startup time: {:?}", start.elapsed()); - renderer.run(&update); + renderer.run(Box::leak(Box::new(update))); } diff --git a/alligator_render/examples/bmp.rs b/alligator_render/examples/bmp.rs index af71863..23842a9 100644 --- a/alligator_render/examples/bmp.rs +++ b/alligator_render/examples/bmp.rs @@ -84,5 +84,5 @@ fn main() { ..Default::default() }); - renderer.run(&update); + renderer.run(Box::leak(Box::new(update))); } diff --git a/alligator_render/examples/bunnymark.rs b/alligator_render/examples/bunnymark.rs new file mode 100644 index 0000000..759d725 --- /dev/null +++ b/alligator_render/examples/bunnymark.rs @@ -0,0 +1,126 @@ +#![feature(once_cell)] +#![feature(let_else)] + +use std::{num::NonZeroU32, time::Instant}; + +use alligator_render::{ + ImageFormat, Instance, InstanceId, RenderWindowConfig, Renderer, TextureId, +}; + +#[derive(Debug)] +struct State { + texture_id: TextureId, + bunnies: Vec<Bunny>, + previous_timestamp: Option<Instant>, + stopped: bool, +} + +impl State { + fn new(texture_id: TextureId) -> Self { + Self { + texture_id, + bunnies: Vec::with_capacity(10_000_000), + previous_timestamp: None, + 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.stopped = true; + } + + 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().texture_x(self.texture_id).unwrap(); + let texture_y = renderer.textures().texture_x(self.texture_id).unwrap(); + let texture_height = renderer.textures().texture_height(self.texture_id).unwrap(); + let texture_width = renderer.textures().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: [0.1, 0.1], + position: [-1.5, 0.70], + ..Default::default() + }); + + let velocity_x = fps.fract() / 24.0; + let velocity_y = 0.0; + 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() { + // configure the render window + let config = RenderWindowConfig { + title: "BunnyMark", + instance_capacity: 10_000_000, + default_width: NonZeroU32::new(1280).unwrap(), + default_height: NonZeroU32::new(720).unwrap(), + vsync: false, + ..Default::default() + }; + + let bunny = include_bytes!("res/bunny.ff"); + let mut renderer = Renderer::new(&config).unwrap(); + let texture_id = renderer + .textures_mut() + .load_from_memory(bunny, ImageFormat::Farbfeld) + .unwrap(); + let state = Box::leak(Box::new(State::new(texture_id))); + renderer.run(Box::leak(Box::new(|r| state.update(r)))); +} diff --git a/alligator_render/examples/res/bunny.ff b/alligator_render/examples/res/bunny.ff Binary files differnew file mode 100644 index 0000000..64c5a69 --- /dev/null +++ b/alligator_render/examples/res/bunny.ff |
