Convert disguises commands to use a commonly shared method to parse a string to a disguise including options
This commit is contained in:
Andrew
181
src/me/libraryaddict/disguise/BaseDisguiseCommand.java
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181
src/me/libraryaddict/disguise/BaseDisguiseCommand.java
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package me.libraryaddict.disguise;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashMap;
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import me.libraryaddict.disguise.disguisetypes.Disguise;
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import me.libraryaddict.disguise.disguisetypes.DisguiseType;
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import me.libraryaddict.disguise.disguisetypes.MiscDisguise;
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import me.libraryaddict.disguise.disguisetypes.MobDisguise;
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import me.libraryaddict.disguise.disguisetypes.PlayerDisguise;
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import net.minecraft.v1_6_R3.org.bouncycastle.util.Arrays;
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import org.apache.commons.lang3.ArrayUtils;
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import org.bukkit.ChatColor;
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import org.bukkit.command.CommandExecutor;
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import org.bukkit.command.CommandSender;
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import org.bukkit.entity.Player;
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public abstract class BaseDisguiseCommand implements CommandExecutor {
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protected ArrayList<String> getAllowedDisguises(CommandSender sender, String permissionNode) {
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ArrayList<String> names = new ArrayList<String>();
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for (DisguiseType type : DisguiseType.values()) {
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String name = type.name().toLowerCase();
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if (sender.hasPermission("libsdisguises." + permissionNode + ".*")
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|| sender.hasPermission("libsdisguises." + permissionNode + "." + name))
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names.add(name);
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}
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Collections.sort(names, String.CASE_INSENSITIVE_ORDER);
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return names;
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}
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protected boolean isNumeric(String string) {
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try {
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Integer.parseInt(string);
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return true;
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} catch (Exception ex) {
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return false;
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}
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}
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protected boolean isDouble(String string) {
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try {
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Float.parseFloat(string);
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return true;
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} catch (Exception ex) {
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return false;
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}
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}
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protected abstract void sendCommandUsage(CommandSender sender);
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/**
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* Returns the disguise if it all parsed correctly. Returns a exception with a complete message if it didn't. The
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* commandsender is purely used for checking permissions. Would defeat the purpose otherwise. To reach this point, the
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* disguise has been feed a proper disguisetype.
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*/
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protected Disguise parseDisguise(CommandSender sender, String[] args) throws Exception {
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String permissionNode = getClass().getSimpleName().replace("Command", "").toLowerCase();
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ArrayList<String> allowedDisguises = getAllowedDisguises(sender, permissionNode);
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if (allowedDisguises.isEmpty()) {
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throw new Exception(ChatColor.RED + "You are forbidden to use this command.");
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}
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if (args.length == 0) {
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sendCommandUsage(sender);
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throw new Exception();
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}
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DisguiseType disguiseType;
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try {
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disguiseType = DisguiseType.valueOf(args[0].toUpperCase());
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} catch (Exception ex) {
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throw new Exception(ChatColor.RED + "Error! The disguise " + ChatColor.GREEN + args[0] + ChatColor.RED
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+ " doesn't exist!");
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}
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if (!allowedDisguises.contains(args[0].toLowerCase())) {
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throw new Exception(ChatColor.RED + "You are forbidden to use this disguise!");
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}
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Disguise disguise = null;
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// How many args to skip due to the disugise being constructed
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int toSkip = 1;
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// Time to start constructing the disguise.
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// We will need to check between all 3 kinds of disguises
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if (disguiseType.isPlayer()) {// If he is doing a player disguise
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toSkip++;
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if (args.length == 1) {
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// He needs to give the player name
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throw new Exception(ChatColor.RED + "Error! You need to give a player name!");
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} else {
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// Construct the player disguise
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disguise = new PlayerDisguise(ChatColor.translateAlternateColorCodes('&', args[1]));
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}
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} else {
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if (disguiseType.isMob()) { // Its a mob, use the mob constructor
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boolean adult = true;
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if (args.length > 1) {
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try {
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adult = Boolean.valueOf(args[1]);
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toSkip++;
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} catch (Exception ex) {
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// Its not a true/false for adult..
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}
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}
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disguise = new MobDisguise(disguiseType, adult);
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} else if (disguiseType.isMisc()) {
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// Its a misc, we are going to use the MiscDisguise constructor.
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int miscId = -1;
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int miscData = -1;
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if (args.length > 1) {
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// They have defined more arguements!
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// If the first arg is a number
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if (isNumeric(args[1])) {
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miscId = Integer.parseInt(args[1]);
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toSkip++;
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// If they also defined a data value
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if (args.length > 2) {
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if (isNumeric(args[2])) {
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miscData = Integer.parseInt(args[2]);
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toSkip++;
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}
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}
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}
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}
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// Construct the disguise
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disguise = new MiscDisguise(disguiseType, true, miscId, miscData);
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}
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}
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// Copy strings to their new range
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String[] newArgs = new String[args.length - toSkip];
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for (int i = toSkip; i < args.length; i++) {
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newArgs[i - toSkip] = args[i];
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}
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args = newArgs;
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// Don't throw a error about uneven methods names and values so we can throw the error about what is unknown later.
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for (int i = 0; i < args.length; i += 2) {
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String methodName = args[i];
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if (i + 1 >= args.length) {
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throw new Exception(ChatColor.RED + "No value was given for " + methodName);
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}
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String valueString = args[i + 1];
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Method methodToUse = null;
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Object value = null;
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for (Method method : disguise.getWatcher().getClass().getMethods()) {
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if (method.getName().equalsIgnoreCase(methodName)) {
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methodToUse = method;
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methodName = method.getName();
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Class<?>[] types = method.getParameterTypes();
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if (types.length == 1) {
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Class param = types[0];
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if ((param.isAssignableFrom(Float.class) || param.isAssignableFrom(int.class) || param
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.isAssignableFrom(Double.class))) {
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if (isDouble(valueString)) {
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value = param.cast(Float.parseFloat(valueString));
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} else {
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throw new Exception(ChatColor.RED + "Expected a number, received " + valueString
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+ " instead for " + methodName);
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}
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} else if (param.isAssignableFrom(boolean.class)) {
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try {
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Boolean.parseBoolean(valueString);
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} catch (Exception ex) {
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throw new Exception(ChatColor.RED + "Expected true/false, received " + valueString
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+ " instead for " + methodName);
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}
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value = param.cast(Boolean.parseBoolean(valueString));
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} else if (param == String.class) {
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value = valueString;
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}
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}
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break;
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}
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}
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if (methodToUse == null) {
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throw new Exception(ChatColor.RED + "Cannot find option " + methodName);
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}
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methodToUse.invoke(disguise.getWatcher(), value);
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}
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// Alright. We've constructed our disguise.
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return disguise;
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}
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}
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