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Add blob brush

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- simplex distortions with a configurable frequency/amplitude
This commit is contained in:
Jesse Boyd 2017-08-14 16:55:26 +10:00
parent d3c3d23ca9
commit 46d1d70f9e
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GPG Key ID: 59F1DE6293AF6E1F
2 changed files with 70 additions and 0 deletions
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51
core/src/main/java/com/boydti/fawe/object/brush/BlobBrush.java Normal file
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@ -0,0 +1,51 @@
package com.boydti.fawe.object.brush;
import com.boydti.fawe.object.random.SimplexNoise;
import com.sk89q.worldedit.EditSession;
import com.sk89q.worldedit.MaxChangedBlocksException;
import com.sk89q.worldedit.Vector;
import com.sk89q.worldedit.command.tool.brush.Brush;
import com.sk89q.worldedit.function.pattern.Pattern;
import java.util.concurrent.ThreadLocalRandom;
public class BlobBrush implements Brush {
private final double amplitude;
private final double frequency;
public BlobBrush(double frequency, double amplitude) {
this.frequency = frequency;
this.amplitude = amplitude;
}
@Override
public void build(EditSession editSession, Vector position, Pattern pattern, double size) throws MaxChangedBlocksException {
double seedX = ThreadLocalRandom.current().nextDouble();
double seedY = ThreadLocalRandom.current().nextDouble();
double seedZ = ThreadLocalRandom.current().nextDouble();
int px = position.getBlockX();
int py = position.getBlockY();
int pz = position.getBlockZ();
double distort = this.frequency / size;
int radiusSqr = (int) (size * size);
int sizeInt = (int) size * 2;
for (int x = -sizeInt; x <= sizeInt; x++) {
double nx = seedX + x * distort;
int d1 = x * x;
for (int y = -sizeInt; y <= sizeInt; y++) {
int d2 = d1 + y * y;
double ny = seedY + y * distort;
for (int z = -sizeInt; z <= sizeInt; z++) {
double nz = seedZ + z * distort;
double distance = d2 + z * z;
double noise = this.amplitude * SimplexNoise.noise(nx, ny, nz);
if (distance + distance * noise < radiusSqr) {
editSession.setBlock(px + x, py + y, pz + z, pattern);
}
}
}
}
}
}

19
core/src/main/java/com/sk89q/worldedit/command/BrushCommands.java
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@ -26,6 +26,7 @@ import com.boydti.fawe.config.Settings;
import com.boydti.fawe.object.FaweLimit;
import com.boydti.fawe.object.FawePlayer;
import com.boydti.fawe.object.brush.BlendBall;
import com.boydti.fawe.object.brush.BlobBrush;
import com.boydti.fawe.object.brush.BrushSettings;
import com.boydti.fawe.object.brush.CatenaryBrush;
import com.boydti.fawe.object.brush.CircleBrush;
@ -286,6 +287,24 @@ public class BrushCommands extends MethodCommands {
.setFill(fill);
}
@Command(
aliases = {"blob", "rock"},
usage = "<pattern> [radius=10] [frequency=30] [amplitude=50]",
flags = "h",
desc = "Creates a distorted sphere",
min = 1,
max = 4
)
@CommandPermissions("worldedit.brush.blob")
public BrushSettings blobBrush(Player player, EditSession editSession, LocalSession session, Pattern fill, @Optional("10") double radius, @Optional("30") double frequency, @Optional("50") double amplitude, CommandContext context) throws WorldEditException {
worldEdit.checkMaxBrushRadius(radius);
Brush brush = new BlobBrush(frequency / 100, amplitude / 100);
return get(context)
.setBrush(brush)
.setSize(radius)
.setFill(fill);
}
@Command(
aliases = {"sphere", "s"},
usage = "<pattern> [radius=2]",