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examples: add rng coloring to bevymark birds (#1192)

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This is something done by a lot of the "bunnymark" tests, and it makes it easier to really see how many you've added.
This commit is contained in:
Jeremiah Senkpiel 2021-01-31 13:41:13 -08:00 committed by GitHub
parent 83777e0ccf
commit 4904080382
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 31 additions and 1 deletions
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32
examples/tools/bevymark.rs
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@ -2,12 +2,15 @@ use bevy::{
diagnostic::{Diagnostics, FrameTimeDiagnosticsPlugin},
prelude::*,
};
use rand::Rng;
const BIRDS_PER_SECOND: u32 = 1000;
const BASE_COLOR: Color = Color::rgb_linear(5.0, 5.0, 5.0);
const GRAVITY: f32 = -9.8 * 100.0;
const MAX_VELOCITY: f32 = 750.;
const BIRD_SCALE: f32 = 0.15;
const HALF_BIRD_SIZE: f32 = 256. * BIRD_SCALE * 0.5;
struct BevyCounter {
pub count: u128,
}
@ -103,14 +106,29 @@ fn setup(commands: &mut Commands, asset_server: Res<AssetServer>) {
});
}
#[allow(clippy::too_many_arguments)]
fn mouse_handler(
commands: &mut Commands,
asset_server: Res<AssetServer>,
time: Res<Time>,
mouse_button_input: Res<Input<MouseButton>>,
window: Res<WindowDescriptor>,
bird_material: Res<BirdMaterial>,
mut bird_material: ResMut<BirdMaterial>,
mut counter: ResMut<BevyCounter>,
mut materials: ResMut<Assets<ColorMaterial>>,
) {
if mouse_button_input.just_pressed(MouseButton::Left) {
let mut rnd = rand::thread_rng();
let color = gen_color(&mut rnd);
let texture_handle = asset_server.load("branding/icon.png");
bird_material.0 = materials.add(ColorMaterial {
color: BASE_COLOR * color,
texture: Some(texture_handle),
});
}
if mouse_button_input.pressed(MouseButton::Left) {
let spawn_count = (BIRDS_PER_SECOND as f32 * time.delta_seconds()) as u128;
let bird_x = (window.width / -2.) + HALF_BIRD_SIZE;
@ -184,3 +202,15 @@ fn counter_system(
}
};
}
/// Generate a color modulation
///
/// Because there is no `Mul<Color> for Color` instead `[f32; 3]` is
/// used.
fn gen_color(rng: &mut impl Rng) -> [f32; 3] {
let r = rng.gen_range(0.2..1.0);
let g = rng.gen_range(0.2..1.0);
let b = rng.gen_range(0.2..1.0);
let v = Vec3::new(r, g, b);
v.normalize().into()
}