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Add noise functions to the expression evaluator.

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sk89q 2014-07-28 02:15:41 -07:00
parent 8476778b46
commit 882cce5ff2
1 changed files with 65 additions and 1 deletions
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66
src/main/java/com/sk89q/worldedit/internal/expression/runtime/Functions.java
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@ -19,11 +19,19 @@
package com.sk89q.worldedit.internal.expression.runtime;
import com.sk89q.worldedit.Vector;
import com.sk89q.worldedit.internal.expression.Expression;
import com.sk89q.worldedit.internal.expression.runtime.Function.Dynamic;
import com.sk89q.worldedit.math.noise.PerlinNoise;
import com.sk89q.worldedit.math.noise.RidgedMultiFractalNoise;
import com.sk89q.worldedit.math.noise.VoronoiNoise;
import java.lang.reflect.Method;
import java.util.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
/**
* Contains all functions that can be used in expressions.
@ -375,6 +383,62 @@ public final class Functions {
return random.nextInt((int) Math.floor(max.getValue()));
}
private static final ThreadLocal<PerlinNoise> localPerlin = new ThreadLocal<PerlinNoise>() {
@Override
protected PerlinNoise initialValue() {
return new PerlinNoise();
}
};
public static double perlin(RValue seed, RValue x, RValue y, RValue z, RValue frequency, RValue octaves, RValue persistence) throws EvaluationException {
PerlinNoise perlin = localPerlin.get();
try {
perlin.setSeed((int) seed.getValue());
perlin.setFrequency(frequency.getValue());
perlin.setOctaveCount((int) octaves.getValue());
perlin.setPersistence(persistence.getValue());
} catch (IllegalArgumentException e) {
throw new EvaluationException(0, "Perlin noise error: " + e.getMessage());
}
return perlin.noise(new Vector(x.getValue(), y.getValue(), z.getValue()));
}
private static final ThreadLocal<VoronoiNoise> localVoronoi = new ThreadLocal<VoronoiNoise>() {
@Override
protected VoronoiNoise initialValue() {
return new VoronoiNoise();
}
};
public static double voronoi(RValue seed, RValue x, RValue y, RValue z, RValue frequency) throws EvaluationException {
VoronoiNoise voronoi = localVoronoi.get();
try {
voronoi.setSeed((int) seed.getValue());
voronoi.setFrequency(frequency.getValue());
} catch (IllegalArgumentException e) {
throw new EvaluationException(0, "Voronoi error: " + e.getMessage());
}
return voronoi.noise(new Vector(x.getValue(), y.getValue(), z.getValue()));
}
private static final ThreadLocal<RidgedMultiFractalNoise> localRidgedMulti = new ThreadLocal<RidgedMultiFractalNoise>() {
@Override
protected RidgedMultiFractalNoise initialValue() {
return new RidgedMultiFractalNoise();
}
};
public static double ridgedmulti(RValue seed, RValue x, RValue y, RValue z, RValue frequency, RValue octaves) throws EvaluationException {
RidgedMultiFractalNoise ridgedMulti = localRidgedMulti.get();
try {
ridgedMulti.setSeed((int) seed.getValue());
ridgedMulti.setFrequency(frequency.getValue());
ridgedMulti.setOctaveCount((int) octaves.getValue());
} catch (IllegalArgumentException e) {
throw new EvaluationException(0, "Ridged multi error: " + e.getMessage());
}
return ridgedMulti.noise(new Vector(x.getValue(), y.getValue(), z.getValue()));
}
private static double queryInternal(RValue type, RValue data, double typeId, double dataValue) throws EvaluationException {
// Compare to input values and determine return value