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Block light bug fixes (#454)

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* Fixed an age-old light calculation bug causing solid blocks to filter their own light, fixed #375, probably fixed #288
Light spread reduction should be done based on the _target's_ light filter level, not the source.

* Revert "Fix Glowing Obsidian lighting"
This hack is no longer necessary.
This reverts commit 35c33ba980.

* Fixed wrong light levels for torch and redstone torch

* Take adjacent light levels and opacity changes into account, block light will now spread when an obstruction is removed, close #455

* Added timings for Level->setBlock() and lighting updates
This commit is contained in:
Dylan K. Taylor
2017-03-24 17:56:26 +00:00
committed by GitHub
parent 0750b3ab59
commit 5926bab323
5 changed files with 53 additions and 4 deletions
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38
src/pocketmine/level/Level.php
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@ -1286,17 +1286,42 @@ class Level implements ChunkManager, Metadatable{
}
public function updateBlockSkyLight(int $x, int $y, int $z){
$this->timings->doBlockSkyLightUpdates->startTiming();
//TODO
$this->timings->doBlockSkyLightUpdates->stopTiming();
}
/**
* Returns the highest light level available in the positions adjacent to the specified block coordinates.
*
* @param int $x
* @param int $y
* @param int $z
*
* @return int
*/
public function getHighestAdjacentBlockLight(int $x, int $y, int $z) : int{
return max([
$this->getBlockLightAt($x + 1, $y, $z),
$this->getBlockLightAt($x - 1, $y, $z),
$this->getBlockLightAt($x, $y + 1, $z),
$this->getBlockLightAt($x, $y - 1, $z),
$this->getBlockLightAt($x, $y, $z + 1),
$this->getBlockLightAt($x, $y, $z - 1)
]);
}
public function updateBlockLight(int $x, int $y, int $z){
$this->timings->doBlockLightUpdates->startTiming();
$lightPropagationQueue = new \SplQueue();
$lightRemovalQueue = new \SplQueue();
$visited = [];
$removalVisited = [];
$id = $this->getBlockIdAt($x, $y, $z);
$oldLevel = $this->getBlockLightAt($x, $y, $z);
$newLevel = (int) Block::$light[$this->getBlockIdAt($x, $y, $z)];
$newLevel = max(Block::$light[$id], $this->getHighestAdjacentBlockLight($x, $y, $z) - Block::$lightFilter[$id]);
if($oldLevel !== $newLevel){
$this->setBlockLightAt($x, $y, $z, $newLevel);
@ -1328,7 +1353,7 @@ class Level implements ChunkManager, Metadatable{
/** @var Vector3 $node */
$node = $lightPropagationQueue->dequeue();
$lightLevel = $this->getBlockLightAt($node->x, $node->y, $node->z) - (int) Block::$lightFilter[$this->getBlockIdAt($node->x, $node->y, $node->z)];
$lightLevel = $this->getBlockLightAt($node->x, $node->y, $node->z);
if($lightLevel >= 1){
$this->computeSpreadBlockLight($node->x - 1, $node->y, $node->z, $lightLevel, $lightPropagationQueue, $visited);
@ -1339,6 +1364,8 @@ class Level implements ChunkManager, Metadatable{
$this->computeSpreadBlockLight($node->x, $node->y, $node->z + 1, $lightLevel, $lightPropagationQueue, $visited);
}
}
$this->timings->doBlockLightUpdates->stopTiming();
}
private function computeRemoveBlockLight(int $x, int $y, int $z, int $currentLight, \SplQueue $queue, \SplQueue $spreadQueue, array &$visited, array &$spreadVisited){
@ -1365,6 +1392,7 @@ class Level implements ChunkManager, Metadatable{
private function computeSpreadBlockLight(int $x, int $y, int $z, int $currentLight, \SplQueue $queue, array &$visited){
if($y < 0) return;
$current = $this->getBlockLightAt($x, $y, $z);
$currentLight -= Block::$lightFilter[$this->getBlockIdAt($x, $y, $z)];
if($current < $currentLight){
$this->setBlockLightAt($x, $y, $z, $currentLight);
@ -1402,6 +1430,8 @@ class Level implements ChunkManager, Metadatable{
return false;
}
$this->timings->setBlock->startTiming();
if($this->getChunk($pos->x >> 4, $pos->z >> 4, true)->setBlock($pos->x & 0x0f, $pos->y & Level::Y_MASK, $pos->z & 0x0f, $block->getId(), $block->getDamage())){
if(!($pos instanceof Position)){
$pos = $this->temporalPosition->setComponents($pos->x, $pos->y, $pos->z);
@ -1441,9 +1471,13 @@ class Level implements ChunkManager, Metadatable{
$this->updateAround($pos);
}
$this->timings->setBlock->stopTiming();
return true;
}
$this->timings->setBlock->stopTiming();
return false;
}