for(i = 0; i < x_size; i++) {
for(j = 0; j < y_size; j++) {
x_diff = player_node%x_size;
y_diff = integer(player_node/y_size);

grid_value[i*x_size+j] = x_diff+y_diff;
if(grid_value[i*x_size+j] > player_range) { grid_value[i*x_size+j] = 0; }

}
}

Should work.

"Falls das Resultat nicht einfach nur dermassen gut aussieht, sollten Sie nochmal von vorn anfangen..." - Manual

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