From 256221c6a28613bfc1841685e8d12246f7d595a0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miloslav=20=C4=8C=C3=AD=C5=BE?= <tastyfish@seznam.cz>
Date: Mon, 21 Oct 2019 17:37:35 +0200
Subject: [PATCH] Fix distance overflow

---
 raycastlib.h | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/raycastlib.h b/raycastlib.h
index 26f5cbc..cd1d928 100644
--- a/raycastlib.h
+++ b/raycastlib.h
@@ -26,7 +26,7 @@
 
   author: Miloslav "drummyfish" Ciz
   license: CC0 1.0
-  version: 0.90
+  version: 0.901
 */
 
 #include <stdint.h>
@@ -855,8 +855,11 @@ void RCL_castRayMultiHit(RCL_Ray ray, RCL_ArrayFunction arrayFunc,
         divided by leg B (length along the same axis). */
 
         h.distance =
-          ((h.position.x - ray.start.x) * RCL_UNITS_PER_SQUARE * rayDirXRecip)
-          / RECIP_SCALE; 
+          (((h.position.x - ray.start.x) / 4) *
+          RCL_UNITS_PER_SQUARE * rayDirXRecip)
+          / (RECIP_SCALE / 4);
+
+          // ^ / 4 is here to prevent overflow
 #endif
       }
       else
@@ -877,8 +880,11 @@ void RCL_castRayMultiHit(RCL_Ray ray, RCL_ArrayFunction arrayFunc,
 
 #if RCL_RECTILINEAR
         h.distance =
-          ((h.position.y - ray.start.y) * RCL_UNITS_PER_SQUARE * rayDirYRecip)
-          / RECIP_SCALE;
+          (((h.position.y - ray.start.y) / 4) *
+          RCL_UNITS_PER_SQUARE * rayDirYRecip)
+          / (RECIP_SCALE / 4);
+
+          // ^ / 4 is here to prevent overflow
 #endif
       }