public function placeObject(ChunkManager $level, $x, $y, $z)
{
$clusterSize = (int) $this->type->clusterSize;
$angle = $this->random->nextFloat() * M_PI;
$offset = VectorMath::getDirection2D($angle)->multiply($clusterSize)->divide(8);
$x1 = $x + 8 + $offset->x;
$x2 = $x + 8 - $offset->x;
$z1 = $z + 8 + $offset->y;
$z2 = $z + 8 - $offset->y;
$y1 = $y + $this->random->nextBoundedInt(3) + 2;
$y2 = $y + $this->random->nextBoundedInt(3) + 2;
for ($count = 0; $count <= $clusterSize; ++$count) {
$seedX = $x1 + ($x2 - $x1) * $count / $clusterSize;
$seedY = $y1 + ($y2 - $y1) * $count / $clusterSize;
$seedZ = $z1 + ($z2 - $z1) * $count / $clusterSize;
$size = ((sin($count * (M_PI / $clusterSize)) + 1) * $this->random->nextFloat() * $clusterSize / 16 + 1) / 2;
$startX = (int) ($seedX - $size);
$startY = (int) ($seedY - $size);
$startZ = (int) ($seedZ - $size);
$endX = (int) ($seedX + $size);
$endY = (int) ($seedY + $size);
$endZ = (int) ($seedZ + $size);
//echo "ORE: $startX, $startY, $startZ,, $endX, $endY, $endZ\n";
for ($x = $startX; $x <= $endX; ++$x) {
$sizeX = ($x + 0.5 - $seedX) / $size;
$sizeX *= $sizeX;
if ($sizeX < 1) {
for ($y = $startY; $y <= $endY; ++$y) {
$sizeY = ($y + 0.5 - $seedY) / $size;
$sizeY *= $sizeY;
if ($y > 0 and $sizeX + $sizeY < 1) {
for ($z = $startZ; $z <= $endZ; ++$z) {
$sizeZ = ($z + 0.5 - $seedZ) / $size;
$sizeZ *= $sizeZ;
if ($sizeX + $sizeY + $sizeZ < 1 and $level->getBlockIdAt($x, $y, $z) === 0) {
$level->setBlockIdAt($x, $y, $z, $this->type->material->getId());
if ($this->type->material->getDamage() !== 0) {
$level->setBlockDataAt($x, $y, $z, $this->type->material->getDamage());
}
$level->updateBlockLight($x, $y, $z);
//echo "Placed to $x, $y, $z\n";
}
}
}
}
}
}
}
}
public static function createRandomDirection(Random $random)
{
return VectorMath::getDirection2D($random->nextFloat() * 2 * pi());
}
private function generateCaveBranch(ChunkManager $level, Vector3 $chunk, Vector3 $target, $horizontalScale, $verticalScale, $horizontalAngle, $verticalAngle, int $startingNode, int $nodeAmount, Random $random)
{
$middle = new Vector3($chunk->getX() + 8, 0, $chunk->getZ() + 8);
$horizontalOffset = 0;
$verticalOffset = 0;
if ($nodeAmount <= 0) {
$size = 7 * 16;
$nodeAmount = $size - $random->nextBoundedInt($size / 4);
}
$intersectionMode = $random->nextBoundedInt($nodeAmount / 2) + $nodeAmount / 4;
$extraVerticalScale = $random->nextBoundedInt(6) == 0;
if ($startingNode == -1) {
$startingNode = $nodeAmount / 2;
$lastNode = true;
} else {
$lastNode = false;
}
for (; $startingNode < $nodeAmount; $startingNode++) {
$horizontalSize = 1.5 + sin($startingNode * pi() / $nodeAmount) * $horizontalScale;
$verticalSize = $horizontalSize * $verticalScale;
$target = $target->add(VectorMath::getDirection3D($horizontalAngle, $verticalAngle));
if ($extraVerticalScale) {
$verticalAngle *= 0.92;
} else {
$verticalScale *= 0.7;
}
$verticalAngle += $verticalOffset * 0.1;
$horizontalAngle += $horizontalOffset * 0.1;
$verticalOffset *= 0.9;
$horizontalOffset *= 0.75;
$verticalOffset += ($random->nextFloat() - $random->nextFloat()) * $random->nextFloat() * 2;
$horizontalOffset += ($random->nextFloat() - $random->nextFloat()) * $random->nextFloat() * 4;
if (!$lastNode) {
if ($startingNode == $intersectionMode and $horizontalScale > 1 and $nodeAmount > 0) {
$this->generateCaveBranch($level, $chunk, $target, $random->nextFloat() * 0.5 + 0.5, 1, $horizontalAngle - pi() / 2, $verticalAngle / 3, $startingNode, $nodeAmount, new Random($random->nextInt()));
$this->generateCaveBranch($level, $chunk, $target, $random->nextFloat() * 0.5 + 0.5, 1, $horizontalAngle - pi() / 2, $verticalAngle / 3, $startingNode, $nodeAmount, new Random($random->nextInt()));
return;
}
if ($random->nextBoundedInt(4) == 0) {
continue;
}
}
$xOffset = $target->getX() - $middle->getX();
$zOffset = $target->getZ() - $middle->getZ();
$nodesLeft = $nodeAmount - $startingNode;
$offsetHorizontalScale = $horizontalScale + 18;
if ($xOffset * $xOffset + $zOffset * $zOffset - $nodesLeft * $nodesLeft > $offsetHorizontalScale * $offsetHorizontalScale) {
return;
}
if ($target->getX() < $middle->getX() - 16 - $horizontalSize * 2 or $target->getZ() < $middle->getZ() - 16 - $horizontalSize * 2 or $target->getX() > $middle->getX() + 16 + $horizontalSize * 2 or $target->getZ() > $middle->getZ() + 16 + $horizontalSize * 2) {
continue;
}
$start = new Vector3(floor($target->getX() - $horizontalSize) - $chunk->getX() - 1, floor($target->getY() - $verticalSize) - 1, floor($target->getZ() - $horizontalSize) - $chunk->getZ() - 1);
$end = new Vector3(floor($target->getX() + $horizontalSize) - $chunk->getX() + 1, floor($target->getY() + $verticalSize) + 1, floor($target->getZ() + $horizontalSize) - $chunk->getZ() + 1);
$node = new CaveNode($level, $chunk, $start, $end, $target, $verticalSize, $horizontalSize);
if ($node->canPlace()) {
$node->place();
}
if ($lastNode) {
break;
}
}
}