Mercurial

annotate dowa/d_math.c @ 151:c033667da5f9 hg-web

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merging latest merge into hg-web
author June Park <parkjune1995@gmail.com>
date Sat, 10 Jan 2026 13:35:09 -0800
parents 655ea0b661fd
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
92
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
1 #include "dowa.h"
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
2
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
3 /* Thank you Eskil */
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
4 uint32 Dowa_Math_Random_Uint32(uint32 seed_number)
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
5 {
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
6 seed_number ^= seed_number << 13;
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
7 seed_number ^= seed_number >> 17;
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
8 seed_number ^= seed_number << 5;
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
9 return seed_number & 0x7fffffff;
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
10
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
11 //seed_number = (seed_number << 13) ^ seed_number;
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
12 //return ((seed_number * (seed_number * seed_number * 15731 + 789221) + 1376312589) & 0x7fffffff);
655ea0b661fd [Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
June Park <parkjune1995@gmail.com>
parents:
diff changeset
13 }