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import java.util.Map; |
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import java.util.HashMap; |
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import java.util.concurrent.ConcurrentHashMap; |
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import java.io.*; |
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|
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public class Economy extends Plugin { |
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@Override |
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public void enable() {} |
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|
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@Override |
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public void disable() {} |
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|
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@Override |
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public void initialize() { |
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PluginListener plugin = new EconomyPluginListener(); |
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PluginLoader loader = etc.getLoader(); |
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loader.addListener( PluginLoader.Hook.COMMAND, plugin, this, PluginListener.Priority.MEDIUM ); |
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loader.addListener( PluginLoader.Hook.SERVERCOMMAND, plugin, this, PluginListener.Priority.MEDIUM ); |
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} |
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|
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class ExchangeRate{ |
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public ExchangeRate() {} |
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public ExchangeRate(int id, String name, int sell, int buy) { |
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this.id = id; |
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this.name = name; |
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this.sell = sell; |
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this.buy = buy; |
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} |
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|
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int id; //blockid |
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String name; |
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int sell; //the amount the user receives when selling item |
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int buy; |
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} |
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|
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public class EconomyPluginListener extends PluginListener { |
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final static String balanceFile = "economy-balance.txt"; |
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final static String ratesFile = "economy-rates.txt"; |
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|
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private Map<String,Integer> itemMap = new HashMap<String,Integer>(); |
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private Map<String, Integer> balances = new ConcurrentHashMap<String,Integer>(); |
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private Map<Integer, ExchangeRate> rates = new HashMap<Integer,ExchangeRate>(); |
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|
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public EconomyPluginListener() { |
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loadExchangeRates(); |
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loadUserBalances(); |
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} |
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|
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private void loadExchangeRates() { |
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try { |
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File f = new File(ratesFile); |
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if (f.exists() ) { |
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BufferedReader in = new BufferedReader(new InputStreamReader( new FileInputStream(f) ) ); |
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|
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rates.clear(); |
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itemMap.clear(); |
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|
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String line; |
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while ( (line = in.readLine()) != null) { |
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line = line.trim(); |
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if (line.length() == 0 || line.startsWith("#")) { |
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continue; |
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} |
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|
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String parts[] = line.split(":"); |
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ExchangeRate r = new ExchangeRate(); |
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r.id = Integer.parseInt(parts[0]); |
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r.name = parts[1]; |
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r.sell = Integer.parseInt(parts[2]); |
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r.buy = Integer.parseInt(parts[3]); |
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|
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rates.put(r.id, r); |
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|
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itemMap.put(r.name.toLowerCase(), r.id); |
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|
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} |
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} else { |
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System.out.println("Could not find rates-file - creating new"); |
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BufferedWriter out = new BufferedWriter( new OutputStreamWriter(new FileOutputStream(f)) ); |
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|
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out.write("#itemID:name:sellrate:buyrate\n"); |
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out.close(); |
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} |
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} catch (Exception e) { |
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System.out.println("Error loading rates: " + e.getMessage() ); |
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} |
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} |
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|
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private void loadUserBalances() { |
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try { |
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File f = new File(balanceFile); |
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if (f.exists() ) { |
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BufferedReader in = new BufferedReader(new InputStreamReader( new FileInputStream(f) ) ); |
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|
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String line; |
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while ( (line = in.readLine()) != null) { |
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line = line.trim(); |
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if (line.length() == 0 || line.startsWith("#")) { |
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continue; |
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} |
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|
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String parts[] = line.split(":"); |
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balances.put(parts[0], Integer.parseInt(parts[1]) ); |
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} |
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|
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in.close(); |
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} |
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} catch (Exception e) { |
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System.out.println("Error loading balances: " + e.getMessage() ); |
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} |
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} |
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|
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private synchronized void saveUserBalance(String username) { |
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try { |
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FileOutputStream fos = new FileOutputStream(balanceFile); |
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BufferedWriter out = new BufferedWriter( new OutputStreamWriter(fos) ); |
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|
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for (String key : balances.keySet() ) { |
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out.write( key + ":" + balances.get(key) ); |
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out.newLine(); |
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} |
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|
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|
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out.close(); |
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fos.close(); |
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} catch (Exception e) { |
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System.out.println("Error saving user balance: " + e.getMessage() ); |
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} |
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|
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} |
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|
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|
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private void adminCoins(Player player, String[] split) { |
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if(split.length != 4 || !(split[1].equals("give") || split[1].equals("take") )) { |
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player.sendMessage( Colors.Green + "Usage: /admincoins (give|take) <player> <amount>"); |
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return; |
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} |
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|
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Player p2 = etc.getServer().getPlayer( split[2]); |
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if (p2 == null) { |
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player.sendMessage( Colors.Green + split[0] + ": could not find player " + split[2]); |
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return; |
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} |
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|
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int amount; |
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try { |
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amount = Integer.parseInt(split[3]); |
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} catch (Exception e) { |
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player.sendMessage( Colors.Green + split[0] + ": amount must be a number"); |
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return; |
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} |
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|
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Integer balance = balances.get(p2.getName() ); |
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if (balance == null) { |
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balance = 0; |
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} |
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|
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if (split[1].equals("give")) { |
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balance += amount; |
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|
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player.sendMessage(Colors.Green + split[0] + ": coins given to " + p2.getName() ); |
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p2.sendMessage(Colors.Green + "You have been given " + amount + " coins"); |
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|
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} else { //take |
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if (amount > balance) { |
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player.sendMessage(Colors.Green + split[0] + ": " + p2.getName() + " doesnt have that many coins"); |
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return; |
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} |
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balance -= amount; |
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|
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player.sendMessage(Colors.Green + split[0] + ": coins taken from " + p2.getName() ); |
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p2.sendMessage(Colors.Green + amount + " coins have been taken from your account"); |
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|
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} |
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|
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balances.put(p2.getName(), balance); |
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saveUserBalance(p2.getName() ); |
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|
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} |
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|
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private void giveCoins(Player player, String[] split) { |
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if (split.length != 3) { |
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player.sendMessage( Colors.Green + "Usage: /givecoins <player> <amount> - gives coins to a user from your account"); |
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return; |
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} |
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Player p2 = etc.getServer().getPlayer( split[1]); |
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if (p2 == null) { |
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player.sendMessage( Colors.Green + "Givecoins: could not find player " + split[1]); |
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return; |
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} |
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int amount; |
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try { |
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amount = Integer.parseInt(split[2]); |
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} catch (Exception e) { |
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player.sendMessage( Colors.Green + "Givecoins: amount must be a number"); |
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return; |
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} |
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|
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Integer source = balances.get(player.getName() ); |
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if (source == null || source < amount) { |
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player.sendMessage(Colors.Green + "Givecoins: you don't have that much to give"); |
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return; |
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} |
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|
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Integer destination = balances.get(p2.getName()); |
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if (destination == null) { |
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destination = 0; |
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} |
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|
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balances.put(player.getName(), source - amount); |
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balances.put(p2.getName(), destination+amount); |
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|
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saveUserBalance(player.getName() ); |
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saveUserBalance(p2.getName() ); |
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|
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player.sendMessage(Colors.Green + "Givecoins, you have given " + amount + " coins to " + p2.getName() ); |
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p2.sendMessage(Colors.Green + "Givecoins, you have received " + amount + " coins from " + player.getName() ); |
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|
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|
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|
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} |
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|
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private void balance(Player player) { |
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Integer balObj = balances.get( player.getName() ); |
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|
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int bal = (balObj != null ? balObj : 0); |
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|
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player.sendMessage( Colors.Green + "Your balance is " + bal + " coins"); |
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} |
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|
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private void rates(Player player) { |
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|
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player.sendMessage( Colors.Green + "Current exchange rates"); |
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|
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for(ExchangeRate r : rates.values() ) { |
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player.sendMessage(Colors.Green + r.name + "(" + r.id + ") sell= " + r.sell + " buy=" + r.buy ); |
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} |
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} |
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|
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int getItemId(String str) { |
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int item = -1; |
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try { |
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item = Integer.parseInt( str ); |
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} catch (Exception e) { |
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Integer itemId = itemMap.get( str.toLowerCase() ); |
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if (itemId != null) { |
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item = itemId; |
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} |
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} |
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return item; |
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} |
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|
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private boolean validateBuySell(Player player, String[] split) { |
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if (split.length != 3) { |
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player.sendMessage( Colors.Green + "Usage: " + split[0] + " <item> <amount>"); |
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return false; |
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} |
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|
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int item = getItemId(split[1]); |
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if (item == -1) { |
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player.sendMessage( Colors.Green + split[0] + ": <item> must be an integer or name of a traded item"); |
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return false; |
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} |
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|
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int amount; |
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try { |
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amount = Integer.parseInt(split[2]); |
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} catch (Exception e) { |
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player.sendMessage( Colors.Green + split[0] + ": amount must be an integer"); |
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return false; |
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} |
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|
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if (amount < 0 || amount > 1024) { |
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player.sendMessage( Colors.Green + split[0] + ": amount must be between 0 and 1024"); |
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return false; |
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} |
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|
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|
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ExchangeRate r = rates.get(item); |
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if (r == null) { |
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player.sendMessage( Colors.Green + split[0] + ": item with id " + item + " can not be traded"); |
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return false; |
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} |
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|
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return true; |
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} |
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|
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|
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|
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private void buy(Player player, String[] split) { |
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int item = getItemId(split[1]); |
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int amount = Integer.parseInt(split[2]); |
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|
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ExchangeRate rate = rates.get(item); |
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|
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int value = rate.buy * amount; |
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|
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Integer balance = balances.get( player.getName() ); |
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|
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if (balance == null || balance < value) { |
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player.sendMessage( Colors.Green + split[0] + ": you don't have enough coins"); |
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return; |
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} |
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|
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player.giveItem(item,amount); |
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int newBalance = balance-value; |
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balances.put(player.getName(), newBalance); |
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|
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|
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player.sendMessage( Colors.Green + "You have bought " + amount + " x " + rate.name ); |
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player.sendMessage( Colors.Green + "Your new balance is " + newBalance ); |
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|
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|
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saveUserBalance(player.getName() ); |
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} |
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|
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private boolean hasItem(Inventory inv, int itemID, int amount) { |
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int count = 0; |
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for (int i=0; i<36; i++) { |
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Item item = inv.getItemFromSlot(i); |
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if (item != null) { |
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if (item.getItemId() == itemID) { |
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count += item.getAmount(); |
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} |
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} |
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} |
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return (count >= amount); |
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|
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} |
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|
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private void sell(Player player, String[] split) { |
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int itemId = getItemId( split[1] ); |
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int amount = Integer.parseInt(split[2]); |
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|
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|
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ExchangeRate rate = rates.get(itemId); |
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|
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Inventory inv = player.getInventory(); |
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|
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/* if (! inv.hasItem(itemId, amount, 1024) ) { |
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player.sendMessage(Colors.Green + split[0] + ": you don't have that many pieces of " + rate.name ); |
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return; |
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} |
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*/ |
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if (! hasItem(inv, itemId, amount) ) { |
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player.sendMessage(Colors.Green + split[0] + ": you don't have that many pieces of " + rate.name ); |
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return; |
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} |
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|
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|
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Integer balance = balances.get( player.getName() ); |
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if (balance == null) { |
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balance = 0; |
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} |
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|
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Item item = new Item(itemId, amount); |
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inv.removeItem(item); |
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inv.updateInventory(); |
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|
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balance += (amount * rate.sell); |
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balances.put( player.getName(), balance); |
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|
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player.sendMessage( Colors.Green + "You have sold " + amount + " x " + rate.name ); |
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player.sendMessage( Colors.Green + "Your new balance is " + balance ); |
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|
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saveUserBalance(player.getName() ); |
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} |
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|
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|
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|
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@Override |
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public boolean onCommand(Player player, java.lang.String[] split) { |
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if (split[0].equals("/balance") ) { |
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balance(player); |
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return true; |
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} |
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|
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|
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if (split[0].equals("/admincoins") && player.canUseCommand("/admincoins") ) { |
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adminCoins(player,split); |
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return true; |
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} |
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|
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if (split[0].equals("/givecoins") ) { |
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giveCoins(player,split); |
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return true; |
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} |
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|
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if (split[0].equals("/rates") ) { |
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rates(player); |
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return true; |
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} |
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|
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if (split[0].equals("/sell") ) { |
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if (validateBuySell(player,split)) { |
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sell(player, split); |
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} |
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return true; |
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} |
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|
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if (split[0].equals("/buy") ) { |
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if (validateBuySell(player,split)) { |
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buy(player, split); |
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} |
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return true; |
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} |
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|
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if (split[0].equals("/reload") && player.canUseCommand("/reload") ) { |
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loadExchangeRates(); |
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} |
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|
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|
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return false; |
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|
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} |
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|
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public boolean onConsoleCommand(String[] split) { |
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if (split[0].equals("reload") ) { |
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loadExchangeRates(); |
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} |
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return false; |
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} |
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} |
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} |