From ec6a391cb9cf0c0feac0fe3615a59cc7cb6db2d5 Mon Sep 17 00:00:00 2001
From: ubq323 <ubq323@ubq323.website>
Date: Fri, 3 Feb 2023 01:32:09 +0000
Subject: drawing changes, world generation, perlin noise

---
 common/coords.lua | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'common/coords.lua')

diff --git a/common/coords.lua b/common/coords.lua
index 1bb9154..2399e43 100644
--- a/common/coords.lua
+++ b/common/coords.lua
@@ -76,6 +76,8 @@ function Pos.__div(a,b)
 end
 function Pos.lensq(self) return self.x^2 + self.y^2 end
 function Pos.len(self) return math.sqrt(self:lensq()) end
+function Pos.norm(self) return self/self:len() end
+function Pos.dot(self,other) return self.x*other.x + self.y*other.y end
 function Pos.to_hex(self)
 	local q = self.x*(SR3/3) - self.y*(1/3)
 	local r = (2/3)*self.y
-- 
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