mirror of
https://github.com/opentibiabr/remeres-map-editor
synced 2026-08-15 18:26:04 -04:00
ea6b515552
New Features: - Docker support: new container build and .dockerignore to reduce build-context size. - Automated vcpkg baseline updater. CI/CD Improvements: - Introduces consolidated reusable CI with platform build and Docker workflows. - Adds cache-cleanup and autofix/format workflows; removes several legacy platform-specific CI files. Chores: - Reorganized CMake presets and build configuration; updated build scripts and project metadata. Style: - Large-scale formatting/whitespace normalization across many scripts and build files.
121 lines
3 KiB
C++
121 lines
3 KiB
C++
//////////////////////////////////////////////////////////////////////
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// This file is part of Remere's Map Editor
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//////////////////////////////////////////////////////////////////////
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// Remere's Map Editor is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Remere's Map Editor is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//////////////////////////////////////////////////////////////////////
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#include "main.h"
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static inline unsigned long int mt_get(void* vstate);
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static double mt_get_double(void* vstate);
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static void mt_set(void* state, unsigned long int s);
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#define N 624 /* Period parameters */
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#define M 397
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/* most significant w-r bits */
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static const unsigned long UPPER_MASK = 0x80000000UL;
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/* least significant r bits */
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static const unsigned long LOWER_MASK = 0x7fffffffUL;
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typedef struct
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{
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unsigned long mt[N];
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int mti;
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} mt_state_t;
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static inline unsigned long
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mt_get(void* vstate) {
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mt_state_t* state = (mt_state_t*)vstate;
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unsigned long k;
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unsigned long int* const mt = state->mt;
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#define MAGIC(y) (((y) & 0x1) ? 0x9908b0dfUL : 0)
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if (state->mti >= N) { /* generate N words at one time */
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int kk;
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for (kk = 0; kk < N - M; kk++) {
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unsigned long y = (mt[kk] & UPPER_MASK) | (mt[kk + 1] & LOWER_MASK);
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mt[kk] = mt[kk + M] ^ (y >> 1) ^ MAGIC(y);
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}
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for (; kk < N - 1; kk++) {
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unsigned long y = (mt[kk] & UPPER_MASK) | (mt[kk + 1] & LOWER_MASK);
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mt[kk] = mt[kk + (M - N)] ^ (y >> 1) ^ MAGIC(y);
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}
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{
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unsigned long y = (mt[N - 1] & UPPER_MASK) | (mt[0] & LOWER_MASK);
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mt[N - 1] = mt[M - 1] ^ (y >> 1) ^ MAGIC(y);
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}
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state->mti = 0;
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}
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/* Tempering */
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k = mt[state->mti];
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k ^= (k >> 11);
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k ^= (k << 7) & 0x9d2c5680UL;
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k ^= (k << 15) & 0xefc60000UL;
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k ^= (k >> 18);
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state->mti++;
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return k;
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}
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static double
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mt_get_double(void* vstate) {
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return mt_get(vstate) / 4294967296.0;
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}
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static void
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mt_set(void* vstate, unsigned long int s) {
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mt_state_t* state = (mt_state_t*)vstate;
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int i;
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if (s == 0) {
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s = 4357; /* the default seed is 4357 */
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}
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state->mt[0] = s & 0xffffffffUL;
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for (i = 1; i < N; i++) {
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/* See Knuth's "Art of Computer Programming" Vol. 2, 3rd
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Ed. p.106 for multiplier. */
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state->mt[i] = (1812433253UL * (state->mt[i - 1] ^ (state->mt[i - 1] >> 30)) + i);
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state->mt[i] &= 0xffffffffUL;
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}
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state->mti = i;
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}
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static mt_state_t mt_state;
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void mt_seed(unsigned long s) {
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mt_set(&mt_state, s);
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}
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unsigned long mt_randi() {
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return mt_get(&mt_state);
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}
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double mt_randd() {
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return mt_get_double(&mt_state);
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}
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