82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
/*
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* BreakHack - A dungeone crawler RPG
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* Copyright (C) 2018 Linus Probert <linus.probert@gmail.com>
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*
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* This program 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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* This program 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 <stdlib.h>
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#include <time.h>
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#include <stdbool.h>
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#include "random.h"
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#include "bh_random.h"
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#include "util.h"
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static unsigned int seed = 0;
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static unsigned int map_seeds[20];
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static unsigned int runtime_seed = 0;
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static void
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generate_random_seeds(void)
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{
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// Use seed for generating map seeds
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bh_srand(seed);
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debug("Core random seed: %d", seed);
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for (int i = 0; i < 20; ++i) {
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map_seeds[i] = bh_rand();
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}
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// Set a more random seed for runtime random
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runtime_seed = (unsigned int) time(NULL);
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bh_srand(runtime_seed);
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debug("Runtime random seed: %d", runtime_seed);
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}
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static void
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init_seed(void)
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{
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if (seed == 0) {
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seed = (unsigned int) time(NULL);
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generate_random_seeds();
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}
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}
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void
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set_random_seed(unsigned int s)
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{
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seed = s;
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generate_random_seeds();
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}
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unsigned int
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get_random_seed(void)
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{
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init_seed();
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return seed;
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}
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unsigned int
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get_random_map_seed(unsigned int level)
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{
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init_seed();
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return map_seeds[level-1];
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}
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unsigned int
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get_random(unsigned int max)
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{
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init_seed();
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return bh_rand() % (max + 1);
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}
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