128 lines
1.8 KiB
C
128 lines
1.8 KiB
C
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#include "bomber.h"
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#include "utils.h"
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#include "gfx.h"
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#include <arpa/inet.h>
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int volatile hc=0;
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char volatile interrupted=0;
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static Uint32 cur_unique;
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Uint32 network_unique;
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Uint32 gtime(void) {
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return SDL_GetTicks();
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}
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Uint32 longtime(void) {
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return gtime()/1000;
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}
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/* random generator */
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#define TAP1 250
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#define TAP2 103
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/*
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#define TAP1 55
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#define TAP2 31
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*/
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static unsigned char myrandblock[TAP1];
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static int myrandtake;
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static int myrand1(void) {
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int i;
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int val;
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i=myrandtake-TAP2;
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if(i<0) i+=TAP1;
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val=myrandblock[myrandtake++]^=myrandblock[i];
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if(myrandtake==TAP1) myrandtake=0;
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return val;
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}
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int myrand(void) {
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int v;
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v=myrand1();
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return (v<<8) | myrand1();
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}
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static void initmyrand(Uint32 unique) {
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int i,j;
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unsigned char *p;
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int msb,msk;
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myrandtake=0;
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p=myrandblock;
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j=12345 ^ unique;
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i=TAP1;
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while(i--) {
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j=(j*1277)&0xffff;
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*p++=j>>8;
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}
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p=myrandblock+14;
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msk=0xff;
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msb=0x80;
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do {
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*p&=msk;
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*p|=msb;
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p+=11;
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msk>>=1;
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msb>>=1;
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} while(msk);
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i=500;
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while(i--) myrand();
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}
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void create_unique(void) {
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set_unique(gtime());
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}
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void set_unique(Uint32 unique) {
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cur_unique = unique;
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network_unique = htonl(cur_unique);
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initmyrand(cur_unique);
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}
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Uint32 get_unique(void) {
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return cur_unique;
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}
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void nomem(char *str) {
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printf("No memory!!![%s]\n",str);
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exit(1);
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}
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void mypause(void) {
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while(!interrupted) {
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pollinput();
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SDL_Delay(1);
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}
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interrupted=0;
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}
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static Uint32 sdlhandler(Uint32 time) {
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#if defined (SDL_LATENCY)
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outmsgs();
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#endif
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interrupted=1;
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hc++;
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return time;
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}
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void pulseon(void) {
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SDL_SetTimer(40,sdlhandler);
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}
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void hexdump(unsigned char *p, int len) {
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int i;
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for (i = 0; i < len; i++) {
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if (15 == len % 16)
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fprintf(stderr, "0x%X\n", p[i]);
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else
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fprintf(stderr, "0x%X ", p[i]);
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}
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if (i % 16)
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fprintf(stderr, "\n");
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}
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