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Improve performance by a tiny bit

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This commit is contained in:
UnknownShadow200 2020-10-03 01:18:50 +10:00
parent c6303e43ea
commit 814d3ea889
2 changed files with 14 additions and 14 deletions
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13
MCGalaxy/Generator/fCraft/MapGen.cs
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@ -59,7 +59,7 @@ namespace MCGalaxy.Generator {
heightmap = new float[_width * _length];
noise.PerlinNoise( heightmap, _width, _length,
args.FeatureScale, args.DetailScale, args.Roughness, 0, 0 );
args.FeatureScale, args.DetailScale, args.Roughness );
if( args.UseBias && !args.DelayBias ) {
ReportProgress( 2, "Heightmap: Biasing" );
@ -147,7 +147,7 @@ namespace MCGalaxy.Generator {
int blendmapDetailSize = (int)Math.Log( Math.Max( _width, _length ), 2 ) - 2;
new Noise( rand.Next(), NoiseInterpolationMode.Cosine )
.PerlinNoise( altmap, _width, _length, 3, blendmapDetailSize, 0.5f, 0, 0 );
.PerlinNoise( altmap, _width, _length, 3, blendmapDetailSize, 0.5f );
Noise.Normalize( altmap, -1, 1 );
}
@ -331,15 +331,16 @@ namespace MCGalaxy.Generator {
Random rn = new Random();
short[,] shadows = ComputeHeightmap( map );
int width = _width, length = _length;
for( int x = 0; x < map.Width; x += rn.Next( minTrunkPadding, maxTrunkPadding + 1 ) ) {
for( int z = 0; z < map.Length; z += rn.Next( minTrunkPadding, maxTrunkPadding + 1 ) ) {
for( int x = 0; x < width; x += rn.Next( minTrunkPadding, maxTrunkPadding + 1 ) ) {
for( int z = 0; z < length; z += rn.Next( minTrunkPadding, maxTrunkPadding + 1 ) ) {
int nx = x + rn.Next( -(minTrunkPadding / 2), (maxTrunkPadding / 2) + 1 );
int nz = z + rn.Next( -(minTrunkPadding / 2), (maxTrunkPadding / 2) + 1 );
if( nx < 0 || nx >= map.Width || nz < 0 || nz >= map.Length ) continue;
if( nx < 0 || nx >= width || nz < 0 || nz >= length ) continue;
int ny = shadows[nx, nz];
if( (map.GetBlock( (ushort)nx, (ushort)ny, (ushort)nz ) == bGroundSurface) && slopemap[nx * _length + nz] < .5 ) {
if( (map.GetBlock( (ushort)nx, (ushort)ny, (ushort)nz ) == bGroundSurface) && slopemap[nx * length + nz] < .5 ) {
// Pick a random height for the tree between Min and Max,
// discarding this tree if it would breach the top of the map
int nh;

5
MCGalaxy/Generator/fCraft/Noise.cs
View File

@ -109,13 +109,12 @@ namespace MCGalaxy.Generator {
}
public void PerlinNoise( float[] map, int width, int length,
int startOctave, int endOctave, float decay, int offsetX, int offsetY ) {
public void PerlinNoise( float[] map, int width, int length, int startOctave, int endOctave, float decay ) {
float maxDim = 1f / Math.Max( width, length );
for( int x = 0, i = 0; x < width; x++ )
for( int y = 0; y < length; y++ )
{
map[i++] += PerlinNoise( x * maxDim + offsetX, y * maxDim + offsetY, startOctave, endOctave, decay );
map[i++] += PerlinNoise( x * maxDim, y * maxDim, startOctave, endOctave, decay );
}
}