mirror of
https://github.com/pmmp/PocketMine-MP.git
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123 lines
3.4 KiB
PHP
123 lines
3.4 KiB
PHP
<?php
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/*
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*
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* ____ _ _ __ __ _ __ __ ____
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* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
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* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
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* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
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* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* @author PocketMine Team
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* @link http://www.pocketmine.net/
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*
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*
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*/
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declare(strict_types=1);
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namespace pocketmine\block;
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use pocketmine\data\runtime\RuntimeDataReader;
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use pocketmine\data\runtime\RuntimeDataWriter;
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use pocketmine\event\block\BlockMeltEvent;
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use function mt_rand;
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class FrostedIce extends Ice{
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public const MAX_AGE = 3;
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protected int $age = 0;
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public function getRequiredStateDataBits() : int{ return 2; }
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protected function decodeState(RuntimeDataReader $r) : void{
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$this->age = $r->readBoundedInt(2, 0, self::MAX_AGE);
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}
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protected function encodeState(RuntimeDataWriter $w) : void{
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$w->writeInt(2, $this->age);
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}
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public function getAge() : int{ return $this->age; }
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/** @return $this */
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public function setAge(int $age) : self{
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if($age < 0 || $age > self::MAX_AGE){
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throw new \InvalidArgumentException("Age must be in range 0 ... " . self::MAX_AGE);
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}
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$this->age = $age;
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return $this;
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}
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public function onNearbyBlockChange() : void{
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if(!$this->checkAdjacentBlocks(2)){
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$this->position->getWorld()->useBreakOn($this->position);
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}else{
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$this->position->getWorld()->scheduleDelayedBlockUpdate($this->position, mt_rand(20, 40));
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}
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}
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public function onRandomTick() : void{
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if((!$this->checkAdjacentBlocks(4) || mt_rand(0, 2) === 0) &&
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$this->position->getWorld()->getHighestAdjacentFullLightAt($this->position->x, $this->position->y, $this->position->z) >= 12 - $this->age){
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if($this->tryMelt()){
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foreach($this->getAllSides() as $block){
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if($block instanceof FrostedIce){
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$block->tryMelt();
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}
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}
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}
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}else{
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$this->position->getWorld()->scheduleDelayedBlockUpdate($this->position, mt_rand(20, 40));
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}
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}
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public function onScheduledUpdate() : void{
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$this->onRandomTick();
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}
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private function checkAdjacentBlocks(int $requirement) : bool{
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$found = 0;
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for($x = -1; $x <= 1; ++$x){
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for($z = -1; $z <= 1; ++$z){
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if($x === 0 && $z === 0){
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continue;
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}
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if(
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$this->position->getWorld()->getBlockAt($this->position->x + $x, $this->position->y, $this->position->z + $z) instanceof FrostedIce &&
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++$found >= $requirement
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){
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return true;
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}
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}
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}
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return false;
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}
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/**
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* Updates the age of the ice, destroying it if appropriate.
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*
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* @return bool Whether the ice was destroyed.
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*/
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private function tryMelt() : bool{
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if($this->age >= self::MAX_AGE){
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$ev = new BlockMeltEvent($this, VanillaBlocks::WATER());
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$ev->call();
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if(!$ev->isCancelled()){
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$this->position->getWorld()->setBlock($this->position, $ev->getNewState());
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}
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return true;
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}
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$this->age++;
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$this->position->getWorld()->setBlock($this->position, $this);
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$this->position->getWorld()->scheduleDelayedBlockUpdate($this->position, mt_rand(20, 40));
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return false;
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}
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}
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