From 63fca47f338fef7826ac53081113ce9ae79f4b93 Mon Sep 17 00:00:00 2001
From: HybridDog <adresse_test@t-online.de>
Date: Mon, 10 Feb 2014 18:26:49 +0100
Subject: [PATCH] more safety with table_contains

---
 init.lua | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/init.lua b/init.lua
index eba6ab1..3fbad88 100644
--- a/init.lua
+++ b/init.lua
@@ -89,13 +89,22 @@ local function return_line(pos, dir, range) --range ~= length
 	return tab
 end
 
+local function table_contains2(t, v)
+	for i = #t, 1, -1 do
+		if t[i] == v then
+			return true
+		end
+	end
+	return false
+end
+
 local function return_fine_line(pos, dir, range, scale)
 	local ps1 = return_line(vector.round(vector.multiply(pos, scale)), dir, range*scale)
-	local ps2 = {vector.round(vector.divide(ps1[1], scale))}
-	local ps2_num = 2
+	local ps2 = {}
+	local ps2_num = 1
 	for _,p1 in ipairs(ps1) do
 		local p2 = vector.round(vector.divide(p1, scale))
-		if p2 ~= ps2[ps2_num-1] then
+		if not table_contains2(ps2, p2) then
 			ps2[ps2_num] = p2
 			ps2_num = ps2_num+1
 		end