500ise_cuboid.js

var WAITING_FOR_FIRST_POS = 0;
var WAITING_FOR_SECOND_POS = 1;
var WAITING_FOR_MATERIAL = 2;

var selectionStage = WAITING_FOR_FIRST_POS;

var firstPoint = [0, 0, 0];
var secondPoint = [0, 0, 0];

function useItem(x, y, z, itemId, blockId) {
	if (selectionStage == WAITING_FOR_MATERIAL) {
		//itemId is the material we want
		var material = itemId > 0xff? 0 : itemId;
		createCuboid(firstPoint, secondPoint, material);
		selectionStage = WAITING_FOR_FIRST_POS;
		preventDefault();
	} else {
		if (itemId == 292) { //iron hoe
			var newpoint = [x, y, z];
			if (selectionStage == WAITING_FOR_FIRST_POS) {
				firstPoint = newpoint;
				print("First point set to " + newpoint.join(","));
			} else {
				secondPoint = newpoint;
				print("Second point set to " + newpoint.join(","));
			}
			selectionStage++;
			preventDefault();
		}
	}

}

function createCuboid(firstPoint, secondPoint, material) {
	var minX = _mathMin(firstPoint[0], secondPoint[0]);
	var minY = _mathMin(firstPoint[1], secondPoint[1]);
	var minZ = _mathMin(firstPoint[2], secondPoint[2]);

	var maxX = _mathMax(firstPoint[0], secondPoint[0]);
	var maxY = _mathMax(firstPoint[1], secondPoint[1]);
	var maxZ = _mathMax(firstPoint[2], secondPoint[2]);

	for (var x = minX; x <= maxX; ++x) {
		for (var z = minZ; z <= maxZ; ++z) {
			for (var y = minY; y <= maxY; ++y) {
				setTile(x, y, z, material);
			}
		}
	}
}

function _mathMin(first, second) {
	return first < second? first : second;
}

function _mathMax(first, second) {
	return first > second? first : second;
}