dos33fsprogs/gr-sim/fire/fire4.c

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2019-05-16 15:38:57 +00:00
#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};
//{15,14,7,6,2,3,0,0};
static unsigned char colors[]={0,0,3,2,6,7,14,15};
#define YSIZE 20
static unsigned char framebuffer[YSIZE][40];
int main(int argc, char **argv) {
int ch,xx,yy,col,newc,r,q;
int i,j,line=1;
int a=0xf, b=0x8, c=0x0;
int volume;
grsim_init();
gr();
clear_screens();
for(j=0;j<YSIZE-1;j++)
for(i=0;i<40;i++)
framebuffer[j][i]=0x0;
for(i=0;i<40;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<40;xx++) {
if (xx<13) volume=a;
else if (xx<26) volume=b;
else volume=c;
/* R is left/right movement */
r=rand()&3;
if (r==0) r=-1;
else if (r==3) r=1;
else r=0;
if (xx==0) r=0;
if (xx==39) r=0;
/* Q is up propogate speed movement */
q=rand()&3;
if (volume<6) {
/* Q=1 3/4 of time */
if (q==0) q=0;
else q=1;
}
else if (volume<12) {
/* Q=1 1/2 of time */
if (q<2) q=0;
else q=1;
}
else {
/* Q=1 1/4 of time */
if (q<3) q=0;
else q=1;
}
newc=framebuffer[yy+1][xx+r]-
q;
if (newc<0) newc=0;
framebuffer[yy][xx]=newc;
}
}
/* copy to framebuffer */
for(yy=0;yy<YSIZE;yy++) {
for(xx=0;xx<40;xx+=1) {
col=framebuffer[yy][xx];
// if (xx==0) printf("Row %d color=%d\n",yy,col/2);
color_equals(colors[col]);
plot(xx,yy+(23-(YSIZE/2)));
}
}
grsim_update();
ch=grsim_input();
if (ch=='q') exit(0);
usleep(20000);
if (ch==' ') {
line=!line;
if (line==1)
for(i=0;i<40;i++) framebuffer[YSIZE-1][i]=0x7;
else
for(i=0;i<40;i++) framebuffer[YSIZE-1][i]=0x0;
}
}
return 0;
}