constants dice d4 = trunc ( rand * 4 ) + 1; d6 = trunc ( rand * 6 ) + 1; d8 = trunc ( rand * 8 ) + 1; d10 = trunc ( rand * 10 ) + 1; d12 = trunc ( rand * 12 ) + 1; d20 = trunc ( rand * 20 ) + 1;