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/*
package net.minecraft.commands;
import net.minecraft.Pos;
import net.minecraft.server.MinecraftServer;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.util.Mth;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.LevelSettings;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class PlayerSelector {
private static final Pattern PATTERN_TARGETS = Pattern.compile("^@([parf])(?:\\[([\\w=,!-]*)\\])?$");
private static final Pattern PATTERN_SHORT_ARGUMENT = Pattern.compile("\\G([-!]?[\\w-]*)(?:$|,)");
private static final Pattern PATTERN_LONG_ARGUMENT = Pattern.compile("\\G(\\w+)=([-!]?[\\w-]*)(?:$|,)");
private static final int TARGETS_GROUP_TYPE = 1;
private static final int TARGETS_GROUP_ARGS = 2; // Null if not specified
private static final String TARGET_NEAREST = "p";
private static final String TARGET_ALL = "a";
private static final String TARGET_RANDOM = "r";
private static final String ARGUMENT_RANGE_MAX = "r";
private static final String ARGUMENT_RANGE_MIN = "rm";
private static final String ARGUMENT_LEVEL_MAX = "l";
private static final String ARGUMENT_LEVEL_MIN = "lm";
private static final String ARGUMENT_COORDINATE_X = "x";
private static final String ARGUMENT_COORDINATE_Y = "y";
private static final String ARGUMENT_COORDINATE_Z = "z";
private static final String ARGUMENT_COUNT = "c";
private static final String ARGUMENT_MODE = "m";
private static final String ARGUMENT_SCORE_PREFIX = "score_";
private static final String ARGUMENT_TEAM_NAME = "team";
private static final String ARGUMENT_PLAYER_NAME = "name";
public static ServerPlayer getPlayer(CommandSender source, String input) {
ServerPlayer[] result = getPlayers(source, input);
if (result == null || result.length != 1) return null;
return result[0];
}
public static String getPlayerNames(CommandSender source, String input) {
ServerPlayer[] result = getPlayers(source, input);
if (result == null || result.length == 0) return null;
String[] names = new String[result.length];
for (int i = 0; i < names.length; i++) {
names[i] = result[i].getDisplayName();
}
return BaseCommand.joinStrings(names);
}
public static ServerPlayer[] getPlayers(CommandSender source, String input) {
Matcher matcher = PATTERN_TARGETS.matcher(input);
if (matcher.matches()) {
Map<String, String> args = getArguments(matcher.group(TARGETS_GROUP_ARGS));
String type = matcher.group(TARGETS_GROUP_TYPE);
int rangeMin = getDefaultRangeMin(type);
int rangeMax = getDefaultRangeMax(type);
int levelMin = getDefaultLevelMin(type);
int levelMax = getDefaultLevelMax(type);
int count = getDefaultCount(type);
int mode = LevelSettings.GameType.NOT_SET.getId();
Pos pos = source.getCommandSenderWorldPosition();
Map<String, Integer> scores = getScores(args);
String name = null;
String team = null;
boolean requireLevel = false;
if (args.containsKey(ARGUMENT_RANGE_MIN)) {
rangeMin = Mth.getInt(args.get(ARGUMENT_RANGE_MIN), rangeMin);
requireLevel = true;
}
if (args.containsKey(ARGUMENT_RANGE_MAX)) {
rangeMax = Mth.getInt(args.get(ARGUMENT_RANGE_MAX), rangeMax);
requireLevel = true;
}
if (args.containsKey(ARGUMENT_LEVEL_MIN)) {
levelMin = Mth.getInt(args.get(ARGUMENT_LEVEL_MIN), levelMin);
}
if (args.containsKey(ARGUMENT_LEVEL_MAX)) {
levelMax = Mth.getInt(args.get(ARGUMENT_LEVEL_MAX), levelMax);
}
if (args.containsKey(ARGUMENT_COORDINATE_X)) {
pos.x = Mth.getInt(args.get(ARGUMENT_COORDINATE_X), pos.x);
requireLevel = true;
}
if (args.containsKey(ARGUMENT_COORDINATE_Y)) {
pos.y = Mth.getInt(args.get(ARGUMENT_COORDINATE_Y), pos.y);
requireLevel = true;
}
if (args.containsKey(ARGUMENT_COORDINATE_Z)) {
pos.z = Mth.getInt(args.get(ARGUMENT_COORDINATE_Z), pos.z);
requireLevel = true;
}
if (args.containsKey(ARGUMENT_MODE)) {
mode = Mth.getInt(args.get(ARGUMENT_MODE), mode);
}
if (args.containsKey(ARGUMENT_COUNT)) {
count = Mth.getInt(args.get(ARGUMENT_COUNT), count);
}
if (args.containsKey(ARGUMENT_TEAM_NAME)) {
team = args.get(ARGUMENT_TEAM_NAME);
}
if (args.containsKey(ARGUMENT_PLAYER_NAME)) {
name = args.get(ARGUMENT_PLAYER_NAME);
}
Level level = requireLevel ? source.getCommandSenderWorld() : null;
if (type.equals(TARGET_NEAREST) || type.equals(TARGET_ALL)) {
List<ServerPlayer> players = MinecraftServer.getInstance().getPlayers().getPlayers(pos, rangeMin, rangeMax, count, mode, levelMin, levelMax, scores, name, team, level);
return players == null || players.isEmpty() ? new ServerPlayer[0] : players.toArray(new ServerPlayer[0]);
} else if (type.equals(TARGET_RANDOM)) {
List<ServerPlayer> players = MinecraftServer.getInstance().getPlayers().getPlayers(pos, rangeMin, rangeMax, 0, mode, levelMin, levelMax, scores, name, team, level);
Collections.shuffle(players);
players = players.subList(0, Math.min(count, players.size()));
return players == null || players.isEmpty() ? new ServerPlayer[0] : players.toArray(new ServerPlayer[0]);
} else {
return null;
}
} else {
return null;
}
}
public static Map<String, Integer> getScores(Map<String, String> input) {
Map<String, Integer> result = new HashMap<String, Integer>();
for (String key : input.keySet()) {
if (key.startsWith(ARGUMENT_SCORE_PREFIX) && key.length() > ARGUMENT_SCORE_PREFIX.length()) {
String name = key.substring(ARGUMENT_SCORE_PREFIX.length());
result.put(name, Mth.getInt(input.get(key), 1));
}
}
return result;
}
public static boolean isList(String input) {
Matcher matcher = PATTERN_TARGETS.matcher(input);
if (matcher.matches()) {
Map<String, String> args = getArguments(matcher.group(TARGETS_GROUP_ARGS));
String type = matcher.group(TARGETS_GROUP_TYPE);
int count = getDefaultCount(type);
if (args.containsKey(ARGUMENT_COUNT)) count = Mth.getInt(args.get(ARGUMENT_COUNT), count);
return count != 1;
}
return false;
}
public static boolean isPattern(String input, String onlyType) {
Matcher matcher = PATTERN_TARGETS.matcher(input);
if (matcher.matches()) {
String type = matcher.group(TARGETS_GROUP_TYPE);
if (onlyType != null && !onlyType.equals(type)) return false;
return true;
}
return false;
}
public static boolean isPattern(String input) {
return isPattern(input, null);
}
private static final int getDefaultRangeMin(String type) {
return 0;
}
private static final int getDefaultRangeMax(String type) {
return 0;
}
private static final int getDefaultLevelMax(String type) {
return Integer.MAX_VALUE;
}
private static final int getDefaultLevelMin(String type) {
return 0;
}
private static final int getDefaultCount(String type) {
if (type.equals(TARGET_ALL)) {
return 0;
} else {
return 1;
}
}
private static Map<String, String> getArguments(String input) {
HashMap<String, String> result = new HashMap<String, String>();
if (input == null) return result;
Matcher matcher = PATTERN_SHORT_ARGUMENT.matcher(input);
int count = 0;
int last = -1;
while (matcher.find()) {
String name = null;
switch (count++) {
case 0:
name = ARGUMENT_COORDINATE_X;
break;
case 1:
name = ARGUMENT_COORDINATE_Y;
break;
case 2:
name = ARGUMENT_COORDINATE_Z;
break;
case 3:
name = ARGUMENT_RANGE_MAX;
break;
}
if (name != null && matcher.group(1).length() > 0) result.put(name, matcher.group(1));
last = matcher.end();
}
if (last < input.length()) {
matcher = PATTERN_LONG_ARGUMENT.matcher(last == -1 ? input : input.substring(last));
while (matcher.find()) {
result.put(matcher.group(1), matcher.group(2));
}
}
return result;
}
}
*/
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