From 449e7b520ba040dceadac8157ec142f5737d15e9 Mon Sep 17 00:00:00 2001
From: Justin Lin <justin.sdk@gmail.com>
Date: Sat, 16 Apr 2022 15:59:17 +0800
Subject: [PATCH] refactor: reverse

---
 src/__comm__/__trapezium.scad | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/__comm__/__trapezium.scad b/src/__comm__/__trapezium.scad
index cdfab3ac..41bf49da 100644
--- a/src/__comm__/__trapezium.scad
+++ b/src/__comm__/__trapezium.scad
@@ -3,10 +3,9 @@ use <__half_trapezium.scad>;
 function __trapezium(length, h, round_r) =
     let(
         r_half_trapezium = __half_trapezium(length / 2, h, round_r),
-        to = len(r_half_trapezium) - 1,
         l_half_trapezium = [
-            for(i = 0; i <= to; i = i + 1)
-                let(pt = r_half_trapezium[to - i])
+            for(i = len(r_half_trapezium) - 1; i > -1; i = i - 1)
+                let(pt = r_half_trapezium[i])
                 [-pt.x, pt.y]
         ]
     )