U0 RandPts()
{
I64 i;
F64 t0=tS;
do {
for (i=0;i<1024;i++) {
gr.dc->color=RandU16&15;
GrPlot(gr.dc,RandU32%GR_WIDTH,RandU32%GR_HEIGHT);
}
Yield;
} while (tS-t0<1);
DCFill;
}
U0 RandDemo()
{
I64 i;
"Seed(0) will do timer XORed random numbers."
"A task starts with Seed(0) by dft.\n";
PressAKey;
Seed;
RandPts;
DCFill;
"\nSeed(num) will do deterministic, non-timer random numbers starting at "
"a specific seed.You can run a specific video game over and over "
"by typing Seed(num) at the cmd line before the game.\n";
PressAKey;
Seed(1);
RandPts;
DCFill;
"\n\n\nWatch when we specify specific seeds:";
"\n\nSeed(1);\n";
Seed(1);
for (i=0;i<5;i++)
"%d: %d\n",i,RandI16;
"\nSeed(2); Different, right?\n";
Seed(2);
for (i=0;i<5;i++)
"%d: %d\n",i,RandI16;
"\nSeed(1); Repeats earlier values.\n";
Seed(1);
for (i=0;i<5;i++)
"%d: %d\n",i,RandI16;
"\nSeed(0); Zero is special.\n";
Seed(0);
for (i=0;i<5;i++)
"%d: %d\n",i,RandI16;
"\nSeed(0); Non-repeating.\n";
Seed(0);
for (i=0;i<5;i++)
"%d: %d\n",i,RandI16;
Seed; //Dft should be kept to zero.
}
RandDemo;