From 4195c1509243d653fa300f942588518097811ef4 Mon Sep 17 00:00:00 2001
From: ninjanomnom <ninjanomnom@gmail.com>
Date: Thu, 7 Dec 2017 14:31:39 -0500
Subject: [PATCH 1/3] step backwards version of hex2num

---
 code/__HELPERS/type2type.dm | 43 ++++++++++++++++---------------------
 1 file changed, 19 insertions(+), 24 deletions(-)

diff --git a/code/__HELPERS/type2type.dm b/code/__HELPERS/type2type.dm
index 56be39a0a81..72a0d18f73e 100644
--- a/code/__HELPERS/type2type.dm
+++ b/code/__HELPERS/type2type.dm
@@ -14,30 +14,25 @@
 //breaks when hittin invalid characters thereafter
 /proc/hex2num(hex)
 	. = 0
-	if(istext(hex))
-		var/negative = 0
-		var/len = length(hex)
-		for(var/i=1, i<=len, i++)
-			var/num = text2ascii(hex,i)
-			switch(num)
-				if(48 to 57)
-					num -= 48	//0-9
-				if(97 to 102)
-					num -= 87	//a-f
-				if(65 to 70)
-					num -= 55	//A-F
-				if(45)
-					negative = 1//-
-				else
-					if(num)
-						break
-					else
-						continue
-			. *= 16
-			. += num
-		if(negative)
-			. *= -1
-	return .
+	if(!istext(hex))
+		return
+
+	var/place = 0
+	for(var/i in length(hex) to 1 step -1)
+		var/num = text2ascii(hex, i)
+		switch(num)
+			if(48 to 57)
+				num -= 48	//0-9
+			if(97 to 102)
+				num -= 87	//a-f
+			if(65 to 70)
+				num -= 55	//A-F
+			if(45)
+				return . * -1 // -
+			else
+				CRASH("Malformed hex number")
+
+		. += num * (16 ** place++)
 
 //Returns the hex value of a decimal number
 //len == length of returned string

From d124545512dc78e724c00f99a1492fa69af407cf Mon Sep 17 00:00:00 2001
From: ninjanomnom <ninjanomnom@gmail.com>
Date: Thu, 7 Dec 2017 22:47:12 -0500
Subject: [PATCH 2/3] removes needless sanitation

---
 code/__HELPERS/type2type.dm | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/code/__HELPERS/type2type.dm b/code/__HELPERS/type2type.dm
index 72a0d18f73e..93c3c246a38 100644
--- a/code/__HELPERS/type2type.dm
+++ b/code/__HELPERS/type2type.dm
@@ -14,9 +14,6 @@
 //breaks when hittin invalid characters thereafter
 /proc/hex2num(hex)
 	. = 0
-	if(!istext(hex))
-		return
-
 	var/place = 0
 	for(var/i in length(hex) to 1 step -1)
 		var/num = text2ascii(hex, i)

From e3572e08731320391a7e6afa8213b7dc1751cbf0 Mon Sep 17 00:00:00 2001
From: ninjanomnom <ninjanomnom@gmail.com>
Date: Fri, 8 Dec 2017 02:22:32 -0500
Subject: [PATCH 3/3] keep track of exponent value instead of recalculating

---
 code/__HELPERS/type2type.dm | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/code/__HELPERS/type2type.dm b/code/__HELPERS/type2type.dm
index 93c3c246a38..2eeee95d090 100644
--- a/code/__HELPERS/type2type.dm
+++ b/code/__HELPERS/type2type.dm
@@ -14,7 +14,7 @@
 //breaks when hittin invalid characters thereafter
 /proc/hex2num(hex)
 	. = 0
-	var/place = 0
+	var/place = 1
 	for(var/i in length(hex) to 1 step -1)
 		var/num = text2ascii(hex, i)
 		switch(num)
@@ -29,7 +29,8 @@
 			else
 				CRASH("Malformed hex number")
 
-		. += num * (16 ** place++)
+		. += num * place
+		place *= 16
 
 //Returns the hex value of a decimal number
 //len == length of returned string