662e3795a7
Added seed value to the maze generator Added a title lock to the console Added a vconsole lock that locks on any virtual console change Changed some of the locks used to free up
76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
#include "types.h"
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#include "user.h"
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uint rngnumber(void)
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{
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// Take from http://stackoverflow.com/questions/1167253/implementation-of-rand
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static unsigned int z1 = 12345, z2 = 12345, z3 = 12345, z4 = 12345;
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unsigned int b;
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b = ((z1 << 6) ^ z1) >> 13;
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z1 = ((z1 & 4294967294U) << 18) ^ b;
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b = ((z2 << 2) ^ z2) >> 27;
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z2 = ((z2 & 4294967288U) << 2) ^ b;
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b = ((z3 << 13) ^ z3) >> 21;
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z3 = ((z3 & 4294967280U) << 7) ^ b;
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b = ((z4 << 3) ^ z4) >> 12;
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z4 = ((z4 & 4294967168U) << 13) ^ b;
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return (z1 ^ z2 ^ z3 ^ z4) / 2;
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}
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int rngrange(int start, int end, int seed)
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{
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if (end < start)
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{
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int swtmp = start;
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start = end;
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end = swtmp;
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}
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int range = end - start + 1;
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return (rngnumber() + seed) % (range) + start;
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}
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int main(int argc, char *argv[]) {
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int lines = 1000;
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int seed = getpid();
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for (int i = 1; i < argc; i++) {
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if (strcmp(argv[i], "-l") == 0)
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{
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lines = atoi(argv[i + 1]);
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}
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else if (strcmp(argv[i], "-s") == 0)
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{
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seed = atoi(argv[i + 1]);
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}
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}
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cls();
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printf(1, "Start Maze\n");
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for (int y = 0; y < lines; y++)
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{
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for (int x = 0; x < 80; x++)
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{
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int rndnum = rngrange(188, 197, seed);
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switch (rndnum)
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{
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case 188:
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rndnum = 32;
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break;
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case 189:
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rndnum = 179;
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break;
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case 190:
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rndnum = 180;
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break;
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}
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printf(1, "%c", rndnum);
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}
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//printf(1, "\n");
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sleep(10);
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}
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printf(1, "Maze Ended\n");
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exit();
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}
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