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Improved biome generation, get grass color from gradient interpolation, improved performance of generation, try to recreate grass colors from imported chunks, closes #2845, closes #1792

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Shoghi Cervantes
2015-06-07 15:17:02 +02:00
parent d881dbf1a2
commit cbb1c55a06
23 changed files with 142 additions and 126 deletions
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24
src/pocketmine/level/generator/biome/Biome.php
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@ -73,10 +73,12 @@ abstract class Biome{
protected $rainfall = 0.5;
protected $temperature = 0.5;
protected $grassColor = 0;
protected static function register($id, Biome $biome){
self::$biomes[(int) $id] = $biome;
$biome->setId((int) $id);
$biome->grassColor = self::generateBiomeColor($biome->getTemperature(), $biome->getRainfall());
}
public static function init(){
@ -173,9 +175,29 @@ abstract class Biome{
return $this->rainfall;
}
private static function generateBiomeColor($temperature, $rainfall){
$x = (1 - $temperature) * 255;
$z = (1 - $rainfall * $temperature) * 255;
$c = self::interpolateColor(256, $x, $z, [0x47, 0xd0, 0x33], [0x6c, 0xb4, 0x93], [0xbf, 0xb6, 0x55], [0x80, 0xb4, 0x97]);
return ((int) ($c[0] << 16)) | (int) (($c[1] << 8)) | (int) ($c[2]);
}
private static function interpolateColor($size, $x, $z, $c1, $c2, $c3, $c4){
$l1 = self::lerpColor($c1, $c2, $x / $size);
$l2 = self::lerpColor($c3, $c4, $x / $size);
return self::lerpColor($l1, $l2, $z / $size);
}
private static function lerpColor($a, $b, $s){
$invs = 1 - $s;
return [$a[0] * $invs + $b[0] * $s, $a[1] * $invs + $b[1] * $s, $a[2] * $invs + $b[2] * $s];
}
/**
* @return int (randomness|Red|Green|Blue)
* @return int (Red|Green|Blue)
*/
abstract public function getColor();
}