121 lines
4.1 KiB
PHP
121 lines
4.1 KiB
PHP
<?php
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/*
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* RavinePopulator 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 Ad5001\BetterGen\populator\AmountPopulator;
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use Ad5001\BetterGen\utils\BuildingUtils;
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class RavinePopulator extends AmountPopulator {
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protected $level;
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const NOISE = 250;
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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 ( $random );
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if ($amount > 50) { // Only build one per chunk
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$depth = $random->nextBoundedInt ( 60 ) + 30; // 2Much4U?
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$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 ( 5, $this->getHighestWorkableBlock ( $x, $z ) );
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$deffX = $x;
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$deffZ = $z;
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$height = $random->nextRange ( 15, 30 );
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$length = $random->nextRange ( 5, 12 );
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for($i = 0; $i < $depth; $i ++) {
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$this->buildRavinePart ( $x, $y, $z, $height, $length, $random );
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$diffX = $x - $deffX;
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$diffZ = $z - $deffZ;
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if ($diffX > $length / 2)
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$diffX = $length / 2;
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if ($diffX < - $length / 2)
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$diffX = - $length / 2;
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if ($diffZ > $length / 2)
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$diffZ = $length / 2;
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if ($diffZ < - $length / 2)
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$diffZ = - $length / 2;
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if ($length > 10)
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$length = 10;
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if ($length < 5)
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$length = 5;
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$x += $random->nextRange ( 0 + $diffX, 2 + $diffX ) - 1;
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$y += $random->nextRange ( 0, 2 ) - 1;
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$z += $random->nextRange ( 0 + $diffZ, 2 + $diffZ ) - 1;
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$heigth += $random->nextRange ( 0, 2 ) - 1;
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$length += $random->nextRange ( 0, 2 ) - 1;
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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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* Builds a ravine part
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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 $height int
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* @param $length int
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* @param $random pocketmine\utils\Random
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*/
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protected function buildRavinePart($x, $y, $z, $height, $length, Random $random) {
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for($xx = $x - $length; $xx <= $x + $length; $xx ++) {
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for($yy = $y; $yy <= $y + $height; $yy ++) {
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for($zz = $z - $length; $zz <= $z + $length; $zz ++) {
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$oldXB = $xBounded;
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$xBounded = $random->nextBoundedInt ( self::NOISE * 2 ) - self::NOISE;
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$oldZB = $zBounded;
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$zBounded = $random->nextBoundedInt ( self::NOISE * 2 ) - self::NOISE;
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if ($xBounded > self::NOISE - 2) {
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$xBounded = 1;
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} elseif ($xBounded < - self::NOISE + 2) {
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$xBounded = - 1;
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} else {
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$xBounded = $oldXB;
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}
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if ($zBounded > self::NOISE - 2) {
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$zBounded = 1;
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} elseif ($zBounded < - self::NOISE + 2) {
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$zBounded = - 1;
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} else {
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$zBounded = $oldZB;
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}
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if (abs ( (abs ( $xx ) - abs ( $x )) ** 2 + (abs ( $zz ) - abs ( $z )) ** 2 ) < ((($length / 2 - $xBounded) + ($length / 2 - $zBounded)) / 2) ** 2 && $y > 0 && ! in_array ( $this->level->getBlockIdAt ( ( int ) round ( $xx ), ( int ) round ( $yy ), ( int ) round ( $zz ) ), BuildingUtils::TO_NOT_OVERWRITE ) && ! in_array ( $this->level->getBlockIdAt ( ( int ) round ( $xx ), ( int ) round ( $yy + 1 ), ( int ) round ( $zz ) ), BuildingUtils::TO_NOT_OVERWRITE )) {
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$this->level->setBlockIdAt ( ( int ) round ( $xx ), ( int ) round ( $yy ), ( int ) round ( $zz ), Block::AIR );
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}
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}
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}
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}
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}
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} |