mirror of
https://github.com/deater/dos33fsprogs.git
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108 lines
1.4 KiB
C
108 lines
1.4 KiB
C
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/* Based on code from "32 BASIC Programs for the Apple Computer" */
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/* by Tom Rugg and Phil Feldman */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "gr-sim.h"
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int main(int argc, char **argv) {
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int ch;
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int j,k;
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int t;
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int r,w,c,m,n,l;
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int x,y;
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#define S 19
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int a[S+1],b[S+1];
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grsim_init();
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// 120
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gr();
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// 125
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// 130
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x=19,y=19;
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label140:
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// 140
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t=rand()%16;
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// 150
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for(j=0;j<=S;j++) {
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a[j]=j;
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b[j]=j;
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}
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// 160+170
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for(j=0;j<=S;j++) {
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r=rand()%(S+1);
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w=a[j];
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a[j]=a[r];
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a[r]=w;
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}
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// 180+190
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for(j=0;j<=S;j++) {
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r=rand()%(S+1);
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w=b[j];
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b[j]=b[r];
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b[r]=w;
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}
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// 200
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for(j=0;j<=S;j++) {
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for(k=0;k<=S;k++) {
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// 210
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r=a[j];
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w=b[k];
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c=r+w+t;
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// 220
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color_equals(c);
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// 240
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if (x+r>40) {
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printf("ERROR! %d %d\n",x,r);
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return -1;
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}
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plot(x+r,y+w);
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plot(x+r,y-w);
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plot(x-r,y-w);
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plot(x-r,y+w);
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plot(x+w,y+r);
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plot(x+w,y-r);
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plot(x-w,y-r);
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plot(x-w,y+r);
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grsim_update();
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//320
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}
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}
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// 350
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for(j=1;j<10;j++) {
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ch=grsim_input();
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if (ch=='q') exit(0);
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if (ch==' ') {
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while(grsim_input()!=' ') usleep(10000);
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}
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usleep(10000);
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}
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// 400
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m=15;
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// 405
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n=(random()%21)+10;
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// 410
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for(j=1;j<=n;j++) {
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r=(random()%22)+1;
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w=random()%m;
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color_equals(w);
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for(l=(y-S);l<=(y+S);l+=(r/4)+1) {
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for(k=(x-S);k<=(x+S);k+=r) {
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plot(k,l);
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}
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}
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}
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goto label140;
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return 0;
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}
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