ClassiCube/ClassicalSharp/Generator/NotchGenerator.cs

36 lines
1.0 KiB
C#

// Based on:
// https://github.com/UnknownShadow200/ClassicalSharp/wiki/Minecraft-Classic-map-generation-algorithm
using System;
using System;
namespace ClassicalSharp.Generator {
// TODO: figure out how noise functions differ, probably based on rnd.
public class NotchGenerator {
int width, height, length;
int waterLevel;
short[] CreateHeightmap() {
Noise n1 = new CombinedNoise(
new OctaveNoise( 8 ), new OctaveNoise( 8 ) );
Noise n2 = new CombinedNoise(
new OctaveNoise( 8 ), new OctaveNoise( 8 ) );
Noise n3 = new OctaveNoise( 6 );
int index = 0;
short[] map = new short[width * length];
for( int z = 0; z < length; z++ ) {
for( int x = 0; x < width; x++ ) {
float hLow = n1.Compute( x * 1.3f, z * 1.3f ) / 6 - 4;
float hHigh = n2.Compute( x * 1.3f, z * 1.3f ) / 5 + 6;
float height = n3.Compute( x, z ) > 0 ? hLow : Math.Max( hLow, hHigh );
if( height < 0 ) height *= 0.8f;
map[index++] = (short)(height + waterLevel);
}
}
}
}