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Start reimplementation of simplex pattern (#520)

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* Start reimplementation of simplex pattern

* Fix suggestions

* Allow nested weighted patterns

* Add documentation and improve error handling

* Remove unnecessary code and obsolete TODOs
This commit is contained in:
Hannes Greule
2020-07-01 14:01:39 +02:00
committed by GitHub
parent 6be429cc96
commit 0bb6bc3563
7 changed files with 253 additions and 7 deletions
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12
worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/parser/pattern/RandomPatternParser.java
View File

@ -38,8 +38,9 @@ public class RandomPatternParser extends InputParser<Pattern> {
@Override
public Stream<String> getSuggestions(String input) {
String[] splits = input.split(",", -1);
List<String> patterns = StringUtil.parseListInQuotes(splits, ',', '[', ']', true);
List<String> patterns = StringUtil.split(input, ',', '[', ']');
/*String[] splits = input.split(",", -1);
List<String> patterns = StringUtil.parseListInQuotes(splits, ',', '[', ']', true);*/
if (patterns.size() == 1) {
return Stream.empty();
}
@ -63,8 +64,9 @@ public class RandomPatternParser extends InputParser<Pattern> {
public Pattern parseFromInput(String input, ParserContext context) throws InputParseException {
RandomPattern randomPattern = new RandomPattern();
String[] splits = input.split(",", -1);
List<String> patterns = StringUtil.parseListInQuotes(splits, ',', '[', ']', true);
List<String> patterns = StringUtil.split(input, ',', '[', ']');
/*String[] splits = input.split(",", -1);
List<String> patterns = StringUtil.parseListInQuotes(splits, ',', '[', ']', true);*/
if (patterns.size() == 1) {
return null; // let a 'single'-pattern parser handle it
}
@ -74,7 +76,7 @@ public class RandomPatternParser extends InputParser<Pattern> {
// Parse special percentage syntax
if (token.matches("[0-9]+(\\.[0-9]*)?%.*")) {
String[] p = token.split("%");
String[] p = token.split("%", 2);
if (p.length < 2) {
throw new InputParseException("Missing the type after the % symbol for '" + input + "'");

75
worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/parser/pattern/SimplexPatternParser.java Normal file
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@ -0,0 +1,75 @@
package com.sk89q.worldedit.extension.factory.parser.pattern;
import com.boydti.fawe.object.random.SimplexRandom;
import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.extension.factory.parser.RichParser;
import com.sk89q.worldedit.extension.input.InputParseException;
import com.sk89q.worldedit.extension.input.ParserContext;
import com.sk89q.worldedit.function.pattern.Pattern;
import com.sk89q.worldedit.function.pattern.RandomPattern;
import com.sk89q.worldedit.world.block.BlockStateHolder;
import org.jetbrains.annotations.NotNull;
import java.util.stream.Stream;
public class SimplexPatternParser extends RichParser<Pattern> {
private static final String SIMPLEX_PREFIX = "#simplex";
public SimplexPatternParser(WorldEdit worldEdit) {
super(worldEdit, SIMPLEX_PREFIX);
}
@Override
protected Stream<String> getSuggestions(String argumentInput, int index) {
if (index == 0) {
if (argumentInput.isEmpty()) {
return Stream.of("1", "2", "3", "4", "5", "6", "7", "8", "9");
}
// if already a valid number, suggest more digits
if (isDouble(argumentInput)) {
Stream<String> numbers = Stream.of("", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9");
if (argumentInput.indexOf('.') == -1) {
numbers = Stream.concat(numbers, Stream.of("."));
}
return numbers.map(s -> argumentInput + s);
}
// no valid input anymore
return Stream.empty();
}
if (index == 1) {
return worldEdit.getPatternFactory().getSuggestions(argumentInput).stream();
}
return Stream.empty();
}
@Override
protected Pattern parseFromInput(@NotNull String[] arguments, ParserContext context) {
if (arguments.length != 2) {
throw new InputParseException("Simplex requires a scale and a pattern, e.g. #simplex[5][dirt,stone]");
}
double scale = Double.parseDouble(arguments[0]);
scale = 1d / Math.max(1, scale);
Pattern inner = worldEdit.getPatternFactory().parseFromInput(arguments[1], context);
if (inner instanceof RandomPattern) {
return new RandomPattern(new SimplexRandom(scale), (RandomPattern) inner);
} else if (inner instanceof BlockStateHolder) {
return inner; // single blocks won't have any impact on how simplex behaves
} else {
throw new InputParseException("Pattern " + inner.getClass().getSimpleName() + " cannot be used with #simplex");
}
}
private static boolean isDouble(String input) {
boolean point = false;
for (char c : input.toCharArray()) {
if (!Character.isDigit(c)) {
if (c == '.' && !point) {
point = true;
} else {
return false;
}
}
}
return true;
}
}