# HG changeset patch
# User sam <sam@basx.dev>
# Date 1723282162 -25200
# Node ID 4dbb9a0a6930fb6b08ccc80ed6045de4d45ca43e
# Parent  f7994a03b802304271eb705853d40206fe341b16
add: manhatten distance

diff -r f7994a03b802 -r 4dbb9a0a6930 semicongine/core/vector.nim
--- a/semicongine/core/vector.nim	Fri Aug 09 23:32:08 2024 +0700
+++ b/semicongine/core/vector.nim	Sat Aug 10 16:29:22 2024 +0700
@@ -146,6 +146,11 @@
 func length*(vec: TVec4[SomeFloat]): auto = sqrt(vec[0] * vec[0] + vec[1] * vec[1] + vec[2] * vec[2] + vec[3] * vec[3])
 func length*(vec: TVec4[SomeInteger]): auto = sqrt(float(vec[0] * vec[0] + vec[1] * vec[1] + vec[2] * vec[2] + vec[3] * vec[3]))
 
+func manhattan*(vec: TVec1): auto = abs(vec[0])
+func manhattan*(vec: TVec2): auto = abs(vec[0]) + abs(vec[1])
+func manhattan*(vec: TVec3): auto = abs(vec[0]) + abs(vec[1]) + abs(vec[2])
+func manhattan*(vec: TVec4): auto = abs(vec[0]) + abs(vec[1]) + abs(vec[2]) + abs(vec[3])
+
 func normal*[T: SomeFloat](vec: TVec2[T]): auto =
   TVec2[T]([vec[1], -vec[0]])