geforkt von Mirrors/FastAsyncWorldEdit
Update FaWe #7
@ -2,7 +2,7 @@ package com.fastasyncworldedit.core.extension.factory.parser.pattern;
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import com.fastasyncworldedit.core.configuration.Caption;
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import com.fastasyncworldedit.core.extension.factory.parser.RichParser;
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import com.fastasyncworldedit.core.function.pattern.Linear2DBlockPattern;
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import com.fastasyncworldedit.core.math.random.Linear2DRandom;
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import com.google.common.base.Preconditions;
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import com.sk89q.worldedit.WorldEdit;
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import com.sk89q.worldedit.command.util.SuggestionHelper;
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@ -14,7 +14,6 @@ import com.sk89q.worldedit.util.formatting.text.TextComponent;
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import com.sk89q.worldedit.world.block.BlockStateHolder;
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import javax.annotation.Nonnull;
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import java.util.Set;
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import java.util.stream.Stream;
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public class Linear2DPatternParser extends RichParser<Pattern> {
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@ -59,9 +58,8 @@ public class Linear2DPatternParser extends RichParser<Pattern> {
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zScale = Integer.parseInt(arguments[2]);
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Preconditions.checkArgument(zScale != 0);
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}
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if (inner instanceof RandomPattern) {
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Set<Pattern> patterns = ((RandomPattern) inner).getPatterns();
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return new Linear2DBlockPattern(patterns.toArray(new Pattern[0]), xScale, zScale);
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if (inner instanceof RandomPattern rp) {
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return new RandomPattern(new Linear2DRandom(xScale, zScale), rp);
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}
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throw new InputParseException(TextComponent.of("Pattern " + inner.getClass().getSimpleName()
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+ " cannot be used with " + getPrefix()));
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@ -2,7 +2,7 @@ package com.fastasyncworldedit.core.extension.factory.parser.pattern;
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import com.fastasyncworldedit.core.configuration.Caption;
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import com.fastasyncworldedit.core.extension.factory.parser.RichParser;
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import com.fastasyncworldedit.core.function.pattern.Linear3DBlockPattern;
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import com.fastasyncworldedit.core.math.random.Linear3DRandom;
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import com.google.common.base.Preconditions;
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import com.sk89q.worldedit.WorldEdit;
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import com.sk89q.worldedit.command.util.SuggestionHelper;
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@ -14,7 +14,6 @@ import com.sk89q.worldedit.util.formatting.text.TextComponent;
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import com.sk89q.worldedit.world.block.BlockStateHolder;
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import javax.annotation.Nonnull;
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import java.util.Set;
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import java.util.stream.Stream;
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public class Linear3DPatternParser extends RichParser<Pattern> {
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@ -64,9 +63,8 @@ public class Linear3DPatternParser extends RichParser<Pattern> {
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zScale = Integer.parseInt(arguments[3]);
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Preconditions.checkArgument(zScale != 0);
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}
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if (inner instanceof RandomPattern) {
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Set<Pattern> patterns = ((RandomPattern) inner).getPatterns();
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return new Linear3DBlockPattern(patterns.toArray(new Pattern[0]), xScale, yScale, zScale);
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if (inner instanceof RandomPattern rp) {
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return new RandomPattern(new Linear3DRandom(xScale, yScale, zScale), rp);
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}
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throw new InputParseException(TextComponent.of("Pattern " + inner.getClass().getSimpleName()
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+ " cannot be used with " + getPrefix()));
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@ -9,6 +9,11 @@ import com.sk89q.worldedit.world.block.BaseBlock;
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import static java.lang.Math.floorDiv;
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/**
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* @deprecated replaced by {@link com.sk89q.worldedit.function.pattern.RandomPattern}
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* combined with {@link com.fastasyncworldedit.core.math.random.Linear2DRandom}.
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*/
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@Deprecated(forRemoval = true, since = "TODO")
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public class Linear2DBlockPattern extends AbstractPattern {
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private final Pattern[] patternsArray;
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@ -9,6 +9,11 @@ import com.sk89q.worldedit.world.block.BaseBlock;
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import static java.lang.Math.floorDiv;
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/**
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* @deprecated replaced by {@link com.sk89q.worldedit.function.pattern.RandomPattern}
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* combined with {@link com.fastasyncworldedit.core.math.random.Linear3DRandom}.
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*/
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@Deprecated(forRemoval = true, since = "TODO")
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public class Linear3DBlockPattern extends AbstractPattern {
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private final Pattern[] patternsArray;
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@ -0,0 +1,50 @@
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package com.fastasyncworldedit.core.math.random;
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import static com.fastasyncworldedit.core.math.random.Linear3DRandom.doubleDiv;
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import static java.lang.Math.floorDiv;
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/**
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* A {@link SimpleRandom} that deterministically maps coordinates
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* to values.
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* @since TODO
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*/
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public class Linear2DRandom implements SimpleRandom {
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private final int xScale;
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private final int zScale;
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/**
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* Creates a new {@link Linear2DRandom} instance
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*
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* @param xScale the scale applied to the x component of a coordinate
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* @param zScale the scale applied to the z component of a coordinate
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*/
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public Linear2DRandom(final int xScale, final int zScale) {
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this.xScale = xScale;
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this.zScale = zScale;
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}
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@Override
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public double nextDouble(final int x, final int y, final int z) {
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return nextDouble(x, y, z, 1d);
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}
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@Override
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public double nextDouble(final int x, final int y, final int z, double bound) {
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double index = (doubleDiv(x, this.xScale) + doubleDiv(z, this.zScale)) % bound;
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if (index < 0) {
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index += bound;
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}
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return index;
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}
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@Override
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public int nextInt(final int x, final int y, final int z, final int bound) {
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int index = (floorDiv(x, this.xScale) + floorDiv(z, this.zScale)) % bound;
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if (index < 0) {
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index += bound;
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}
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return index;
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}
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}
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@ -0,0 +1,58 @@
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package com.fastasyncworldedit.core.math.random;
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import static java.lang.Math.floorDiv;
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/**
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* A {@link SimpleRandom} that deterministically maps coordinates
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* to values.
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* @since TODO
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*/
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public class Linear3DRandom implements SimpleRandom {
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private final int xScale;
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private final int yScale;
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private final int zScale;
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/**
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* Creates a new {@link Linear3DRandom} instance
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*
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* @param xScale the scale applied to the x component of a coordinate
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* @param yScale the scale applied to the y component of a coordinate
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* @param zScale the scale applied to the z component of a coordinate
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*/
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public Linear3DRandom(final int xScale, final int yScale, final int zScale) {
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this.xScale = xScale;
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this.yScale = yScale;
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this.zScale = zScale;
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}
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@Override
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public double nextDouble(final int x, final int y, final int z) {
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return nextDouble(x, y, z, 1d);
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}
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@Override
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public double nextDouble(final int x, final int y, final int z, double bound) {
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double index = (doubleDiv(x, this.xScale) + doubleDiv(y, this.yScale) + doubleDiv(z, this.zScale)) % bound;
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if (index < 0) {
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index += bound;
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}
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return index;
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}
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// used to avoid explicit conversion at call site
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static double doubleDiv(double dividend, double divisor) {
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// add a minimal value to avoid too many integral values hitting the exact weight of an entry in SimpleRandomCollection
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return Math.nextUp(dividend) / divisor;
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}
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@Override
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public int nextInt(final int x, final int y, final int z, final int bound) {
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int index = (floorDiv(x, this.xScale) + floorDiv(y, this.yScale) + floorDiv(z, this.zScale)) % bound;
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if (index < 0) {
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index += bound;
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}
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return index;
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}
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}
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@ -13,6 +13,20 @@ public interface SimpleRandom {
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*/
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double nextDouble(int x, int y, int z);
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/**
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* Generate a random double from three integer components.
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* The generated value is between 0 (inclusive) and {@code bound} (exclusive).
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*
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* @param x the first component
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* @param y the second component
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* @param z the third component
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* @param bound upper bound (exclusive)
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* @return a double between 0 (inclusive) and {@code bound} (exclusive)
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*/
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default double nextDouble(int x, int y, int z, double bound) {
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return nextDouble(x, y, z) * bound;
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}
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/**
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* Generate a random integer from three integer components.
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* The generated value is between 0 (inclusive) and 1 (exclusive)
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@ -24,8 +38,8 @@ public interface SimpleRandom {
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* @return a random integer between 0 (inclusive) and {@code bound} (exclusive)
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*/
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default int nextInt(int x, int y, int z, int bound) {
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double val = nextDouble(x, y, z);
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return (int) (val * bound);
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double val = nextDouble(x, y, z, bound);
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return (int) val;
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}
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}
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@ -36,7 +36,7 @@ public class SimpleRandomCollection<E> extends RandomCollection<E> {
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@Override
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public E next(int x, int y, int z) {
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return map.ceilingEntry(getRandom().nextDouble(x, y, z) * this.total).getValue();
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return map.ceilingEntry(getRandom().nextDouble(x, y, z, this.total)).getValue();
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}
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}
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