dos33fsprogs/utils/gr-sim/fire/fire3.c
Vince Weaver b1238af49d re-arranged the entire directory structure
this will probably upset people
2021-01-05 15:29:31 -05:00

73 lines
1.2 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <math.h>
#include "tfv_zp.h"
#include "gr-sim.h"
// 0 1 2 3 4 5 6 7
static unsigned char colors[]={0,0,5,8,1,9,13,15};
#define YSIZE 20
static unsigned char framebuffer[YSIZE][80];
int main(int argc, char **argv) {
int ch,xx,yy,col,newc,r;
int i,j;
grsim_init();
gr();
clear_screens();
for(j=0;j<YSIZE-1;j++)
for(i=0;i<80;i++)
framebuffer[j][i]=0x0;
for(i=0;i<80;i++) framebuffer[YSIZE-1][i]=0x7;
ram[DRAW_PAGE]=0x0;
while(1) {
/* activate fire */
for(yy=0;yy<YSIZE-1;yy++) {
for(xx=0;xx<80;xx++) {
r=rand()&2;
if (r==0) r=-1;
else if (r==3) r=1;
else r=0;
newc=framebuffer[yy+1][xx+r]-
(rand()&1);
if (newc<0) newc=0;
framebuffer[yy][xx]=newc;
}
}
/* copy to framebuffer */
for(yy=0;yy<YSIZE;yy++) {
for(xx=0;xx<80;xx+=2) {
col=((framebuffer[yy][xx]+
framebuffer[yy][xx+1])/2);
// if (xx==0) printf("Row %d color=%d\n",yy,col/2);
color_equals(colors[col]);
plot(xx/2,yy+(23-(YSIZE/2)));
}
}
grsim_update();
ch=grsim_input();
if (ch=='q') exit(0);
usleep(40000);
}
return 0;
}