" . usableBlocks1D($len, $max) . " $exp
"); } test(1, 1, 1); test(1, 2, 1); test(1, 3, 1); test(5, 1, 3); test(6, 1, 3); test(6, 2, 4); test(6, 3, 5); test(6, 4, 4); test(6, 5, 5); test(6, 6, 6); test(7, 3, 6); test(8, 3, 6); // */ function nextLowerOdd($a) { if(($a % 2) == 0) $a--; return $a; } function rcBlocks1D($len, $max) { // Same as above but length of each strip must be odd and at least 3 if($len < 3) return 0; $max = nextLowerOdd($max); // Divide into strips of length $max $nfull = floor(($len + 1) / ($max + 1)); $full = $nfull * $max; // Add excess if possible $excess = $len - $full - $nfull; if($excess >= 3) // can form another tank from the excess return $full + nextLowerOdd($excess); else if($nfull > 0 && $max > 3 && $excess > 0) // can form another tank from the excess and by shrinking one existing tank return $full + nextLowerOdd($excess); else // can't form another tank return $full; } /* function test($len, $max, $exp) { print("$len $max -> " . rcBlocks1D($len, $max) . " $exp
"); } test(1, 1, 0); test(1, 2, 0); test(1, 3, 0); test(5, 3, 3); test(6, 3, 3); test(6, 6, 5); test(6, 7, 5); test(11, 7, 10); test(20, 7, 17); test(23, 7, 21); test(22, 7, 19); test(21, 7, 19); // */ function rcBlocks($x, $y, $z) { if($y < 4) return 0; return rcBlocks1D($x, 7) * usableBlocks1D($y, 8) * rcBlocks1D($z, 7); } function xyBlocks($x, $y, $z) { return usableBlocks1D($x-2, 10) * usableBlocks1D($y-2, 10) * usableBlocks1D($z-2, 10); } ?>

How much liquid can I store in this space?
	X size (blocks)	">
	Y size (blocks)	">
	Z size (blocks)	">
	Buildcraft*	buckets	mB/block
	Railcraft (iron)	buckets	mB/block
	Railcraft (steel)	buckets	mB/block
	Xycraft	buckets	mB/block
* Buildcraft figure allows 3 vertical layers for piping