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Using Vectors for explosions

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This commit is contained in:
Shoghi Cervantes 2013-09-08 00:27:35 +02:00
parent 7c9255e21e
commit 1abe7626bf
1 changed files with 20 additions and 30 deletions
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50
src/world/Explosion.php
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@ -20,11 +20,12 @@
*/
class Explosion{
private $i = 16; //Rays
private $rays = 16; //Rays
public $level;
public $source;
public $size;
public $affectedBlocks = array();
public $stepLen = 0.3;
public function __construct(Position $center, $size){
$this->level = $center->level;
@ -42,40 +43,29 @@ class Explosion{
return false;
}
$drops = array();
for($i = 0; $i < $this->i; ++$i){
for($j = 0; $j < $this->i; ++$j){
for($k = 0; $k < $this->i; ++$k){
if($i === 0 or $i === ($this->i - 1) or $j === 0 or $j === ($this->i - 1) or $k === 0 or $k === ($this->i - 1)){
$vectorX = $i / ($this->i - 1) * 2 - 1;
$vectorY = $j / ($this->i - 1) * 2 - 1;
$vectorZ = $k / ($this->i - 1) * 2 - 1;
$d6 = sqrt($vectorX * $vectorX + $vectorY * $vectorY + $vectorZ * $vectorZ);
$vectorX /= $d6;
$vectorY /= $d6;
$vectorZ /= $d6;
$mRays = $this->rays - 1;
for($i = 0; $i < $this->rays; ++$i){
for($j = 0; $j < $this->rays; ++$j){
for($k = 0; $k < $this->rays; ++$k){
if($i == 0 or $i == $mRays or $j == 0 or $j == $mRays or $k == 0 or $k == $mRays){
$vector = new Vector3($i / $mRays * 2 - 1, $j / $mRays * 2 - 1, $k / $mRays * 2 - 1);
$vector = $vector->normalize()->multiply($this->stepLen);
$pointer = clone $this->source;
$blastForce = $this->size * (mt_rand(700, 1300) / 1000);
$X = $this->source->x;
$Y = $this->source->y;
$Z = $this->source->z;
for($stepLen = 0.3; $blastForce > 0; $blastForce -= $stepLen * 0.75){
$x = (int) $X;
$y = (int) $Y;
$z = (int) $Z;
$block = $this->level->getBlock(new Vector3($x, $y, $z));
for($blastForce = $this->size * (mt_rand(700, 1300) / 1000); $blastForce > 0; $blastForce -= $this->stepLen * 0.75){
$vBlock = $pointer->floor();
if($vBlock->y >= 128 or $vBlock->y < 0){
break;
}
$block = $this->level->getBlock($vBlock);
if(!($block instanceof AirBlock) and $y < 128 and $y >= 0){
$blastForce -= ($block->getHardness() / 5 + 0.3) * $stepLen;
if(!($block instanceof AirBlock)){
$blastForce -= ($block->getHardness() / 5 + 0.3) * $this->stepLen;
if($blastForce > 0){
$this->affectedBlocks[$x.":".$y.":".$z] = $block;
$this->affectedBlocks[$vBlock->x.":".$vBlock->y.":".$vBlock->z] = $block;
}
}
$X += $vectorX * $stepLen;
$Y += $vectorY * $stepLen;
$Z += $vectorZ * $stepLen;
$pointer = $pointer->add($vector);
}
}
}