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round towards nearest

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Corwin 2023-06-02 01:25:52 +01:00
parent 1d7acfb070
commit ae23f6fdf4
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1 changed files with 8 additions and 2 deletions
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10
examples/hyperspace-roll/src/level_generation.rs
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@ -45,8 +45,14 @@ fn roll_dice_scaled(number_of_dice: u32, bits_per_dice: u32, width: u32) -> i32
let dice_around_zero = dice - current_mean;
dice_around_zero * width as i32 / current_width
fn divide_nearest(numerator: i32, denominator: i32) -> i32 {
if (numerator < 0) ^ (denominator < 0) {
(numerator - denominator / 2) / denominator
} else {
(numerator + denominator / 2) / denominator
}
}
divide_nearest(dice_around_zero * width as i32, current_width)
}
fn default_roll(width: u32) -> i32 {