Mercurial > games > semicongine

annotate tests/test_noise.nim @ 1034:d82980c293bb

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
did: smile, just for the sake of testing mercurial hooks :)
author sam <sam@basx.dev>
date Thu, 21 Mar 2024 15:58:03 +0700
parents fad6490fb728
children 71315636ba82
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
370
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
1 import semicongine
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
2
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
3 const w = 500
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
4 const h = 500
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
5
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
6 var o = "P2\n" & $ w & " " & $ h & "\n255\n"
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
7
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
8 for y in 0 ..< h:
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
9 for x in 0 ..< w:
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
10 let v = (
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
11 perlin(newVec2f(float(x) * 0.01, float(y) * 0.01)) * 0.7 +
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
12 perlin(newVec2f(float(x) * 0.05, float(y) * 0.05)) * 0.25 +
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
13 perlin(newVec2f(float(x) * 0.2, float(y) * 0.2)) * 0.05
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
14 )
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
15 o = o & $(int((v * 0.5 + 0.5) * 255)) & " "
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
16 o = o & "\n"
fad6490fb728 add: missing material module, some functions for noise
Sam <sam@basx.dev>
parents:
diff changeset
17 echo o