Function random_range

examples/demo/fnc_random_range.rs:15–27

Generate a random f32 in the range [min, max]. Uses a simple LCG algorithm. Thread-unsafe (uses static mut).

(min: f32, max: f32)

///
/// Uses a simple LCG algorithm. Thread-unsafe (uses static mut).
pub fn random_range(min: f32, max: f32) -> f32 {
    unsafe {
        SEED = SEED.wrapping_mul(6364136223846793005).wrapping_add(1);
        if SEED == 0 {
            SEED = SystemTime::now()
                .duration_since(UNIX_EPOCH)
                .unwrap()
                .as_nanos() as u64;
        }
        let t = ((SEED >> 33) as f32) / (u32::MAX as f32);
        min + t * (max - min)
    }
}

// <FILE>examples/demo/fnc_random_range.rs</FILE> - <DESC>Simple random number generator</DESC>
// <VERS>END OF VERSION: 1.0.0</VERS>