157 lines
5.2 KiB
PHP
157 lines
5.2 KiB
PHP
<?php
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/*
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* CavePopulator from BetterGen
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* Copyright (C) Ad5001 2017
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* Licensed under the BoxOfDevs Public General LICENSE which can be found in the file LICENSE in the root directory
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* @author ad5001
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*/
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namespace Ad5001\BetterGen\populator;
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use pocketmine\utils\Random;
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use pocketmine\block\Block;
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use pocketmine\level\ChunkManager;
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use pocketmine\math\Vector3;
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use Ad5001\BetterGen\utils\BuildingUtils;
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use Ad5001\BetterGen\populator\AmountPopulator;
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class CavePopulator extends AmountPopulator {
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protected $level;
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const STOP = false;
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const CONTINUE = true;
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/*
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* Populate the chunk
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* @param $level pocketmine\level\ChunkManager
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* @param $chunkX int
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* @param $chunkZ int
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* @param $random pocketmine\utils\Random
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*/
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public function populate(ChunkManager $level, $chunkX, $chunkZ, Random $random) {
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$this->level = $level;
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$amount = $this->getAmount($random);
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for($i = 0; $i < $amount; $i++) {
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$x = $random->nextRange($chunkX << 4, ($chunkX << 4) + 15);
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$z = $random->nextRange($chunkZ << 4, ($chunkZ << 4) + 15);
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$y = $random->nextRange(10, $this->getHighestWorkableBlock($x, $z ));
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// echo "Generating cave at $x, $y, $z." . PHP_EOL;
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$this->generateCave($x, $y, $z, $random);
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}
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// echo "Finished Populating chunk $chunkX, $chunkZ !" . PHP_EOL;
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// Filling water & lava sources randomly
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for($i = 0; $i < $random->nextBoundedInt(10 ) + 15; $i ++) {
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$x = $random->nextRange($chunkX << 4, ($chunkX << 4) + 15);
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$z = $random->nextRange($chunkZ << 4, ($chunkZ << 4) + 15);
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$y = $random->nextRange(10, $this->getHighestWorkableBlock($x, $z ));
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if ($level->getBlockIdAt($x, $y, $z ) == Block::STONE && ($level->getBlockIdAt($x + 1, $y, $z ) == Block::AIR || $level->getBlockIdAt($x - 1, $y, $z ) == Block::AIR || $level->getBlockIdAt($x, $y, $z + 1 ) == Block::AIR || $level->getBlockIdAt($x, $y, $z - 1 ) == Block::AIR) && $level->getBlockIdAt($x, $y - 1, $z ) !== Block::AIR && $level->getBlockIdAt($x, $y + 1, $z ) !== Block::AIR) {
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if ($y < 40 && $random->nextBoolean ()) {
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$level->setBlockIdAt($x, $y, $z, Block::LAVA);
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} else {
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$level->setBlockIdAt($x, $y, $z, Block::WATER);
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}
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}
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}
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}
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/*
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* Gets the top block (y) on an x and z axes
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* @param $x int
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* @param $z int
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*/
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protected function getHighestWorkableBlock($x, $z) {
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for($y = 127; $y > 0; -- $y) {
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$b = $this->level->getBlockIdAt($x, $y, $z);
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if ($b === Block::DIRT or $b === Block::GRASS or $b === Block::PODZOL or $b === Block::SAND or $b === Block::SNOW_BLOCK or $b === Block::SANDSTONE) {
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break;
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} elseif ($b !== 0 and $b !== Block::SNOW_LAYER and $b !== Block::WATER) {
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return - 1;
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}
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}
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return $y++;
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}
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/*
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* Generates a cave
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* @param $x int
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* @param $y int
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* @param $z int
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* @param $random pocketmine\utils\Random
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* @return void
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*/
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public function generateCave($x, $y, $z, Random $random) {
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$generatedBranches = $random->nextBoundedInt(10 ) + 1;
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// echo "Num of branch left => " . $generatedBranches . PHP_EOL;
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foreach($gen = $this->generateBranch($x, $y, $z, 5, 3, 5, $random ) as $v3 ) {
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$generatedBranches --;
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if ($generatedBranches <= 0) {
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$gen->send(self::STOP);
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} else {
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$gen->send(self::CONTINUE);
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}
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}
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}
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/*
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* Generates a cave branch.
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* @param $x int
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* @param $y int
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* @param $z int
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* @param $length int
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* @param $height int
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* @param $depth int
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* @param $random pocketmine\utils\Random
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* @yield int
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* @return void
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*/
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public function generateBranch($x, $y, $z, $length, $height, $depth, Random $random) {
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if (! (yield new Vector3($x, $y, $z ))) {
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for($i = 0; $i <= 4; $i ++) {
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BuildingUtils::buildRandom($this->level, new Vector3($x, $y, $z ), new Vector3($length - $i, $height - $i, $depth - $i ), $random, Block::get(Block::AIR ));
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$x += round(($random->nextBoundedInt(round(30 * ($length / 10) ) + 1 ) / 10 - 2));
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$yP = $random->nextRange(- 14, 14);
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if ($yP > 12) {
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$y ++;
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} elseif ($yP < - 12) {
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$y --;
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}
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$z += round(($random->nextBoundedInt(round(30 * ($depth / 10) ) + 1 ) / 10 - 1));
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return [ ];
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}
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}
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$repeat = $random->nextBoundedInt(25 ) + 15;
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while($repeat -- > 0 ) {
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// echo "Y => $y; H => $height; L => $length; D => $depth; R => $repeat" . PHP_EOL;
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BuildingUtils::buildRandom($this->level, new Vector3($x, $y, $z ), new Vector3($length, $height, $depth ), $random, Block::get(Block::AIR ));
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$x += round(($random->nextBoundedInt(round(30 * ($length / 10) ) + 1 ) / 10 - 2));
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$yP = $random->nextRange(- 14, 14);
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if ($yP > 12) {
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$y ++;
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} elseif ($yP < - 12) {
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$y --;
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}
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$z += round(($random->nextBoundedInt(round(30 * ($depth / 10) ) + 1 ) / 10 - 1));
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$height += $random->nextBoundedInt(3 ) - 1;
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$length += $random->nextBoundedInt(3 ) - 1;
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$depth += $random->nextBoundedInt(3 ) - 1;
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if ($height < 3)
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$height = 3;
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if ($length < 3)
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$length = 3;
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if ($height < 3)
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$height = 3;
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if ($height < 7)
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$height = 7;
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if ($length < 7)
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$length = 7;
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if ($height < 7)
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$height = 7;
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if ($random->nextBoundedInt(10 ) == 0) {
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foreach($generator = $this->generateBranch($x, $y, $z, $length, $height, $depth, $random ) as $gen ) {
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if (! (yield $gen))
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$generator->send(self::STOP);
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}
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}
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}
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return;
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}
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} |