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| author | ubq323 <ubq323@ubq323.website> | 2023-02-03 01:32:09 +0000 |
|---|---|---|
| committer | ubq323 <ubq323@ubq323.website> | 2023-02-03 01:32:09 +0000 |
| commit | ec6a391cb9cf0c0feac0fe3615a59cc7cb6db2d5 (patch) | |
| tree | 1893ad4fe5dc651370411f2bc84060cd7c0465cb /common/coords.lua | |
| parent | 04664ee48de5fc8b06a584e20a4b75c41dafa558 (diff) | |
drawing changes, world generation, perlin noise
Diffstat (limited to 'common/coords.lua')
| -rw-r--r-- | common/coords.lua | 2 |
1 files changed, 2 insertions, 0 deletions
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 |