From ae23f6fdf4b06c4bda6be6c7d161079e353a6aae Mon Sep 17 00:00:00 2001
From: Corwin <corwin@kuiper.dev>
Date: Fri, 2 Jun 2023 01:25:52 +0100
Subject: [PATCH] round towards nearest

---
 examples/hyperspace-roll/src/level_generation.rs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/examples/hyperspace-roll/src/level_generation.rs b/examples/hyperspace-roll/src/level_generation.rs
index 3daa43d2..523332d6 100644
--- a/examples/hyperspace-roll/src/level_generation.rs
+++ b/examples/hyperspace-roll/src/level_generation.rs
@@ -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 {