From: ShadowNinja <noreply@gmail.com>
Date: Sun, 7 Jul 2013 16:02:11 +0000 (-0400)
Subject: Move math.hypot() to misc_helpers.lua and fix zero-division error
X-Git-Url: http://81.2.79.47:8989/gitweb/?a=commitdiff_plain;h=a75afb85ca6338da847172bbed3cc776d3aced20;p=zefram%2Fminetest%2Fminetest_engine.git

Move math.hypot() to misc_helpers.lua and fix zero-division error
---

diff --git a/builtin/misc.lua b/builtin/misc.lua
index 4be03c38..f4e7dbca 100644
--- a/builtin/misc.lua
+++ b/builtin/misc.lua
@@ -106,13 +106,3 @@ function minetest.formspec_escape(str)
 	return str
 end
 
-function math.hypot(x, y)
-	local t
-	x = math.abs(x)
-	y = math.abs(y)
-	t = math.min(x, y)
-	x = math.max(x, y)
-	t = t / x
-	return x * math.sqrt(1 + t * t)
-end
-
diff --git a/builtin/misc_helpers.lua b/builtin/misc_helpers.lua
index 743a9cfd..0439415b 100644
--- a/builtin/misc_helpers.lua
+++ b/builtin/misc_helpers.lua
@@ -91,4 +91,14 @@ function minetest.pos_to_string(pos)
 	return "(" .. pos.x .. "," .. pos.y .. "," .. pos.z .. ")"
 end
 
+function math.hypot(x, y)
+	local t
+	x = math.abs(x)
+	y = math.abs(y)
+	t = math.min(x, y)
+	x = math.max(x, y)
+	if x == 0 then return 0 end
+	t = t / x
+	return x * math.sqrt(1 + t * t)
+end