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#!/usr/bin/env -S awk -f
BEGIN { FS = ",|=" }
/[0-9]+,[0-9]+/ { grid[$2][$1] = 1 }
# START PART 1
flag == 1 { next }
# END PART 1
/x|y/ {
for (y in grid) {
for (x in grid[y]) {
if ($1 ~ /x/ && x * 1 > $2) {
delete grid[y][x]
grid[y][$2 - (x - $2)] = 1
} else if ($1 ~ /y/ && y * 1 > $2) {
delete grid[y][x]
grid[$2 - (y - $2)][x] = 1
}
}
}
# START PART 1
flag = 1
# END PART 1
}
END {
# START PART 1
for (y in grid) {
for (x in grid[y])
acc += grid[y][x]
}
print acc
# END PART 1 START PART 2
for (y = 0; y < 6; y++) {
for (x = 0; x < 29; x++)
printf grid[y][x] ? "█" : " "
print ""
}
# END PART 2
}
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