mirror of
https://github.com/pmmp/PocketMine-MP.git
synced 2025-09-06 17:59:48 +00:00
456 lines
12 KiB
PHP
456 lines
12 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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namespace pocketmine\block;
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use pocketmine\entity\Entity;
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use pocketmine\item\Item;
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use pocketmine\level\Level;
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use pocketmine\math\Vector3;
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abstract class Liquid extends Transparent{
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/** @var Vector3 */
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private $temporalVector = null;
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public function hasEntityCollision(){
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return true;
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}
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public function isBreakable(Item $item){
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return false;
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}
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public function canBeReplaced(){
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return true;
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}
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public function isSolid(){
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return false;
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}
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public $adjacentSources = 0;
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public $isOptimalFlowDirection = [0, 0, 0, 0];
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public $flowCost = [0, 0, 0, 0];
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public function getFluidHeightPercent(){
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$d = $this->meta;
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if($d >= 8){
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$d = 0;
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}
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return ($d + 1) / 9;
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}
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protected function getFlowDecay(Vector3 $pos){
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if(!($pos instanceof Block)){
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$pos = $this->getLevel()->getBlock($pos);
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}
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if($pos->getId() !== $this->getId()){
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return -1;
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}else{
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return $pos->getDamage();
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}
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}
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protected function getEffectiveFlowDecay(Vector3 $pos){
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if(!($pos instanceof Block)){
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$pos = $this->getLevel()->getBlock($pos);
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}
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if($pos->getId() !== $this->getId()){
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return -1;
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}
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$decay = $pos->getDamage();
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if($decay >= 8){
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$decay = 0;
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}
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return $decay;
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}
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public function getFlowVector(){
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$vector = new Vector3(0, 0, 0);
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if($this->temporalVector === null){
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$this->temporalVector = new Vector3(0, 0, 0);
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}
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$decay = $this->getEffectiveFlowDecay($this);
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for($j = 0; $j < 4; ++$j){
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$x = $this->x;
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$y = $this->y;
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$z = $this->z;
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if($j === 0){
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--$x;
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}elseif($j === 1){
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++$x;
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}elseif($j === 2){
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--$z;
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}elseif($j === 3){
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++$z;
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}
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$sideBlock = $this->getLevel()->getBlock($this->temporalVector->setComponents($x, $y, $z));
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$blockDecay = $this->getEffectiveFlowDecay($sideBlock);
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if($blockDecay < 0){
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if(!$sideBlock->canBeFlowedInto()){
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continue;
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}
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$blockDecay = $this->getEffectiveFlowDecay($this->getLevel()->getBlock($this->temporalVector->setComponents($x, $y - 1, $z)));
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if($blockDecay >= 0){
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$realDecay = $blockDecay - ($decay - 8);
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$vector->x += ($sideBlock->x - $this->x) * $realDecay;
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$vector->y += ($sideBlock->y - $this->y) * $realDecay;
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$vector->z += ($sideBlock->z - $this->z) * $realDecay;
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}
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continue;
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}else{
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$realDecay = $blockDecay - $decay;
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$vector->x += ($sideBlock->x - $this->x) * $realDecay;
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$vector->y += ($sideBlock->y - $this->y) * $realDecay;
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$vector->z += ($sideBlock->z - $this->z) * $realDecay;
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}
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}
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if($this->getDamage() >= 8){
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$falling = false;
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if(!$this->getLevel()->getBlock($this->temporalVector->setComponents($this->x, $this->y, $this->z - 1))->canBeFlowedInto()){
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$falling = true;
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}elseif(!$this->getLevel()->getBlock($this->temporalVector->setComponents($this->x, $this->y, $this->z + 1))->canBeFlowedInto()){
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$falling = true;
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}elseif(!$this->getLevel()->getBlock($this->temporalVector->setComponents($this->x - 1, $this->y, $this->z))->canBeFlowedInto()){
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$falling = true;
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}elseif(!$this->getLevel()->getBlock($this->temporalVector->setComponents($this->x + 1, $this->y, $this->z))->canBeFlowedInto()){
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$falling = true;
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}elseif(!$this->getLevel()->getBlock($this->temporalVector->setComponents($this->x, $this->y + 1, $this->z - 1))->canBeFlowedInto()){
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$falling = true;
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}elseif(!$this->getLevel()->getBlock($this->temporalVector->setComponents($this->x, $this->y + 1, $this->z + 1))->canBeFlowedInto()){
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$falling = true;
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}elseif(!$this->getLevel()->getBlock($this->temporalVector->setComponents($this->x - 1, $this->y + 1, $this->z))->canBeFlowedInto()){
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$falling = true;
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}elseif(!$this->getLevel()->getBlock($this->temporalVector->setComponents($this->x + 1, $this->y + 1, $this->z))->canBeFlowedInto()){
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$falling = true;
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}
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if($falling){
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$vector = $vector->normalize()->add(0, -6, 0);
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}
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}
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return $vector->normalize();
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}
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public function addVelocityToEntity(Entity $entity, Vector3 $vector){
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$flow = $this->getFlowVector();
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$vector->x += $flow->x;
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$vector->y += $flow->y;
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$vector->z += $flow->z;
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}
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public function tickRate(){
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if($this instanceof Water){
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return 5;
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}elseif($this instanceof Lava){
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return 30;
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}
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return 0;
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}
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public function onUpdate($type){
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if($type === Level::BLOCK_UPDATE_NORMAL){
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$this->checkForHarden();
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$this->getLevel()->scheduleUpdate($this, $this->tickRate());
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}elseif($type === Level::BLOCK_UPDATE_SCHEDULED){
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if($this->temporalVector === null){
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$this->temporalVector = new Vector3(0, 0, 0);
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}
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$decay = $this->getFlowDecay($this);
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$multiplier = $this instanceof Lava ? 2 : 1;
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$flag = true;
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if($decay > 0){
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$smallestFlowDecay = -100;
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$this->adjacentSources = 0;
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$smallestFlowDecay = $this->getSmallestFlowDecay($this->level->getBlock($this->temporalVector->setComponents($this->x, $this->y, $this->z - 1)), $smallestFlowDecay);
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$smallestFlowDecay = $this->getSmallestFlowDecay($this->level->getBlock($this->temporalVector->setComponents($this->x, $this->y, $this->z + 1)), $smallestFlowDecay);
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$smallestFlowDecay = $this->getSmallestFlowDecay($this->level->getBlock($this->temporalVector->setComponents($this->x - 1, $this->y, $this->z)), $smallestFlowDecay);
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$smallestFlowDecay = $this->getSmallestFlowDecay($this->level->getBlock($this->temporalVector->setComponents($this->x + 1, $this->y, $this->z)), $smallestFlowDecay);
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$k = $smallestFlowDecay + $multiplier;
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if($k >= 8 or $smallestFlowDecay < 0){
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$k = -1;
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}
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if(($topFlowDecay = $this->getFlowDecay($this->level->getBlock($this->level->getBlock($this->temporalVector->setComponents($this->x, $this->y + 1, $this->z))))) >= 0){
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if($topFlowDecay >= 8){
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$k = $topFlowDecay;
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}else{
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$k = $topFlowDecay | 0x08;
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}
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}
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if($this->adjacentSources >= 2 and $this instanceof Water){
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$bottomBlock = $this->level->getBlock($this->level->getBlock($this->temporalVector->setComponents($this->x, $this->y - 1, $this->z)));
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if($bottomBlock->isSolid()){
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$k = 0;
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}elseif($bottomBlock instanceof Water and $bottomBlock->getDamage() === 0){
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$k = 0;
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}
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}
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if($this instanceof Lava and $decay < 8 and $k < 8 and $k > 1 and mt_rand(0, 4) !== 0){
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$k = $decay;
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$flag = false;
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}
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if($k !== $decay){
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$decay = $k;
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if($decay < 0){
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$this->getLevel()->setBlock($this, new Air(), true);
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}else{
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$this->getLevel()->setBlock($this, Block::get($this->id, $decay), true);
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$this->getLevel()->scheduleUpdate($this, $this->tickRate());
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}
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}elseif($flag){
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//$this->getLevel()->scheduleUpdate($this, $this->tickRate());
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//$this->updateFlow();
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}
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}else{
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//$this->updateFlow();
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}
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$bottomBlock = $this->level->getBlock($this->temporalVector->setComponents($this->x, $this->y - 1, $this->z));
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if($bottomBlock->canBeFlowedInto() or $bottomBlock instanceof Liquid){
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if($this instanceof Lava and $bottomBlock instanceof Water){
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$this->getLevel()->setBlock($bottomBlock, Block::get(Item::STONE), true);
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return;
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}
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if($decay >= 8){
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$this->getLevel()->setBlock($bottomBlock, Block::get($this->id, $decay), true);
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$this->getLevel()->scheduleUpdate($bottomBlock, $this->tickRate());
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}else{
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$this->getLevel()->setBlock($bottomBlock, Block::get($this->id, $decay + 8), true);
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$this->getLevel()->scheduleUpdate($bottomBlock, $this->tickRate());
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}
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}elseif($decay >= 0 and ($decay === 0 or !$bottomBlock->canBeFlowedInto())){
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$flags = $this->getOptimalFlowDirections();
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$l = $decay + $multiplier;
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if($decay >= 8){
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$l = 1;
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}
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if($l >= 8){
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$this->checkForHarden();
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return;
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}
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if($flags[0]){
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$this->flowIntoBlock($this->level->getBlock($this->temporalVector->setComponents($this->x - 1, $this->y, $this->z)), $l);
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}
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if($flags[1]){
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$this->flowIntoBlock($this->level->getBlock($this->temporalVector->setComponents($this->x + 1, $this->y, $this->z)), $l);
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}
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if($flags[2]){
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$this->flowIntoBlock($this->level->getBlock($this->temporalVector->setComponents($this->x, $this->y, $this->z - 1)), $l);
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}
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if($flags[3]){
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$this->flowIntoBlock($this->level->getBlock($this->temporalVector->setComponents($this->x, $this->y, $this->z + 1)), $l);
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}
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}
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$this->checkForHarden();
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}
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}
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private function flowIntoBlock(Block $block, $newFlowDecay){
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if($block->canBeFlowedInto()){
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if($block->getId() > 0){
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$this->getLevel()->useBreakOn($block);
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}
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$this->getLevel()->setBlock($block, Block::get($this->getId(), $newFlowDecay), true);
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$this->getLevel()->scheduleUpdate($block, $this->tickRate());
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}
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}
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private function calculateFlowCost(Block $block, $accumulatedCost, $previousDirection){
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$cost = 1000;
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for($j = 0; $j < 4; ++$j){
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if(
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($j === 0 and $previousDirection === 1) or
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($j === 1 and $previousDirection === 0) or
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($j === 2 and $previousDirection === 3) or
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($j === 3 and $previousDirection === 2)
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){
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$x = $block->x;
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$y = $block->y;
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$z = $block->z;
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if($j === 0){
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--$x;
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}elseif($j === 1){
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++$x;
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}elseif($j === 2){
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--$z;
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}elseif($j === 3){
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++$z;
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}
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$blockSide = $this->getLevel()->getBlock($this->temporalVector->setComponents($x, $y, $z));
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if(!$blockSide->canBeFlowedInto() and !($blockSide instanceof Liquid)){
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continue;
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}elseif($blockSide instanceof Liquid and $blockSide->getDamage() === 0){
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continue;
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}elseif($this->getLevel()->getBlock($this->temporalVector->setComponents($x, $y - 1, $z))->canBeFlowedInto()){
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return $accumulatedCost;
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}
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if($accumulatedCost >= 4){
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continue;
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}
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$realCost = $this->calculateFlowCost($blockSide, $accumulatedCost + 1, $j);
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if($realCost < $cost){
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$cost = $realCost;
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}
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}
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}
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return $cost;
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}
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public function getHardness(){
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return 100;
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}
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private function getOptimalFlowDirections(){
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if($this->temporalVector === null){
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$this->temporalVector = new Vector3(0, 0, 0);
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}
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for($j = 0; $j < 4; ++$j){
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$this->flowCost[$j] = 1000;
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$x = $this->x;
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$y = $this->y;
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$z = $this->z;
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if($j === 0){
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--$x;
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}elseif($j === 1){
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++$x;
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}elseif($j === 2){
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--$z;
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}elseif($j === 3){
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++$z;
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}
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$block = $this->getLevel()->getBlock($this->temporalVector->setComponents($x, $y, $z));
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if(!$block->canBeFlowedInto() and !($block instanceof Liquid)){
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continue;
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}elseif($block instanceof Liquid and $block->getDamage() === 0){
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continue;
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}elseif($this->getLevel()->getBlock($this->temporalVector->setComponents($x, $y - 1, $z))->canBeFlowedInto()){
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$this->flowCost[$j] = 0;
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}else{
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$this->flowCost[$j] = $this->calculateFlowCost($block, 1, $j);
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}
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}
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$minCost = $this->flowCost[0];
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for($i = 1; $i < 4; ++$i){
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if($this->flowCost[$i] < $minCost){
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$minCost = $this->flowCost[$i];
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}
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}
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for($i = 0; $i < 4; ++$i){
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$this->isOptimalFlowDirection[$i] = ($this->flowCost[$i] === $minCost);
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}
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return $this->isOptimalFlowDirection;
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}
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private function getSmallestFlowDecay(Vector3 $pos, $decay){
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$blockDecay = $this->getFlowDecay($pos);
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if($blockDecay < 0){
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return $decay;
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}elseif($blockDecay === 0){
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++$this->adjacentSources;
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}elseif($blockDecay >= 8){
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$blockDecay = 0;
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}
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return ($decay >= 0 && $blockDecay >= $decay) ? $decay : $blockDecay;
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}
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private function checkForHarden(){
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if($this instanceof Lava){
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$colliding = false;
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for($side = 0; $side <= 5 and !$colliding; ++$side){
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$colliding = $this->getSide($side) instanceof Water;
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}
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if($colliding){
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if($this->getDamage() === 0){
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$this->getLevel()->setBlock($this, Block::get(Item::OBSIDIAN), true);
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}elseif($this->getDamage() <= 4){
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$this->getLevel()->setBlock($this, Block::get(Item::COBBLESTONE), true);
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}
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}
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}
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}
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public function getBoundingBox(){
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return null;
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}
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public function getDrops(Item $item){
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return [];
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}
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} |