77 lines
1.3 KiB
C++
77 lines
1.3 KiB
C++
/*
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* mathutil.cpp
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* BoE
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*
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* Created by Celtic Minstrel on 16/04/09.
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*
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*/
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#include <cstdlib>
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#include "mathutil.hpp"
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std::mt19937 game_rand;
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std::mt19937 unique_rand;
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short get_ran (short times,short min,short max, bool use_unique_ran){
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long unsigned int store;
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short to_ret = 0;
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if(max < min) max = min;
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if(max == min) return times * min;
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for(short i = 1; i < times + 1; i++) {
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if(use_unique_ran)
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store = unique_rand();
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else
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store = game_rand();
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to_ret += min + (store % (max - min + 1));
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}
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return to_ret;
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}
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short max(short a,short b){
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if(a > b)
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return a;
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else return b;
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}
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short min(short a,short b){
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if(a < b)
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return a;
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else return b;
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}
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short minmax(short min,short max,short k){
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if(k < min)
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return min;
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if(k > max)
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return max;
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return k;
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}
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int percent(int value, int percentage) {
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// TODO: Any need to protect from overflow?
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return (value * percentage) / 100;
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}
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short gcd(short a, short b){ // Grabbed from Wikipedia and translated to C code
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short t;
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while(b != 0){
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t = b;
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b = a % b;
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a = t;
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}
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return a;
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}
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// According to Macintosh Toolbox Essentials, a tick is about 1/60ths of a second.
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sf::Time time_in_ticks(int ticks) {
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unsigned long long micro = ticks;
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micro *= 1000;
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micro *= 1000;
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micro /= 60;
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return sf::microseconds(micro);
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}
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