rain function does not show the eights columns

[MichaelJohannes]

I found following:
rain function does not show the eights column but why?
map function does not work like expected!
Want to map a value between 0 to 8 , tried set 9
in our case map(values[col], 0, 100, 0, 9) and it worked.
Here the corrected function:

void rain(int cycles, int delayTime) {
int rain[] = {0, 0, 0, 0, 0, 0, 0, 0};
for (int v = 0; v < 8; v++) {
rain[v] = random(0, 10) * 10;
}
for (int c = 0; c < cycles; c++) {
for (int f = 0; f < 10; f++) {
for (int col = 0; col < 8; col++) {
int row = map(rain[col], 0, 100, 0, 9); // map to 9 to reach 8 😃
if ((row % 2) == 1) {
pixels.setPixelColor((64 - row * 8) + (7 - col), pixels.Color(200, 200, 200));
} else {
pixels.setPixelColor((64 - row * 8) + col, pixels.Color(200, 200, 200));
}
}
pixels.show();
delay(delayTime);
for (int v = 0; v < 8; v++) {
rain[v] = (rain[v] + 10) % 100;
}
clear();
delay(100);
}
}
}