Example:
use macroquad::prelude::*;
use std::array;
use std::time::Instant;
#[macroquad::main("slow")]
async fn main() {
let line_points: [Vec3; 2000] = array::from_fn(|_| {
vec3(
quad_rand::gen_range(0.0, screen_width()),
quad_rand::gen_range(0.0, screen_height()),
quad_rand::gen_range(0.0, 1.0),
)
});
let squares: [Vec2; 1000] = array::from_fn(|_| {
vec2(
quad_rand::gen_range(0.0, screen_width()),
quad_rand::gen_range(0.0, screen_height()),
)
});
loop {
clear_background(LIGHTGRAY);
for i in 0..1000 {
draw_line_3d(
vec3(line_points[i].x, line_points[i].y, line_points[i].z),
vec3(line_points[i + 1000].x, line_points[i + 1000].y, line_points[i + 1000].z),
BLUE,
);
draw_poly(squares[i].x, squares[i].y, 4, 2.0, 0.0, RED);
}
let t = Instant::now();
next_frame().await;
println!("time for await: {:?}", t.elapsed());
}
}On the first run, this prints:
time for await: 570.241663ms
time for await: 6.083847ms
time for await: 13.534707ms
time for await: 16.068566ms
time for await: 16.863645ms
time for await: 15.514372ms
time for await: 16.550544ms
time for await: 16.419731ms
time for await: 16.5569ms
time for await: 15.814831ms
Running it several times in a row makes it faster, but the difference is still visible:
time for await: 49.537983ms
time for await: 8.848842ms
time for await: 16.459325ms
time for await: 16.368043ms
time for await: 16.36937ms
time for await: 16.45276ms
time for await: 16.418258ms
time for await: 16.520926ms
time for await: 16.394233ms
This is especially relevant because #943 adds a new DrawMode, which can then cause this slowness if we alternate between drawing a lot of polygons / lines and circles.
Example:
On the first run, this prints:
Running it several times in a row makes it faster, but the difference is still visible:
This is especially relevant because #943 adds a new
DrawMode, which can then cause this slowness if we alternate between drawing a lot of polygons / lines and circles.