Merge pull request 'Add basic sleep command to ScriptSystem' (#142) from ScriptSleep into master

Reviewed-by: Lixfel <lixfel@steamwar.de>

BauSystem_Main/src/de/steamwar/bausystem/world/ScriptListener.java

@@ -19,10 +19,12 @@
 
 package de.steamwar.bausystem.world;
 
+import de.steamwar.bausystem.BauSystem;
 import de.steamwar.core.Core;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
 import org.bukkit.event.block.Action;
 import org.bukkit.event.player.PlayerCommandPreprocessEvent;
@@ -30,35 +32,38 @@ import org.bukkit.event.player.PlayerInteractEvent;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.BookMeta;
 
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
 import java.util.logging.Level;
 
 public class ScriptListener implements Listener {
 
-    @EventHandler
-    public void onLeftClick(PlayerInteractEvent event) {
-        if(event.getAction() != Action.LEFT_CLICK_AIR && event.getAction() != Action.LEFT_CLICK_BLOCK)
-            return;
+    private Set<Player> playerSet = new HashSet<>();
 
+    public ScriptListener() {
+        Bukkit.getScheduler().runTaskTimer(BauSystem.getPlugin(), playerSet::clear, 5, 5);
+    }
+
+    @EventHandler(priority = EventPriority.HIGH)
+    public void onLeftClick(PlayerInteractEvent event) {
         ItemStack item = event.getItem();
         if(item == null || isNoBook(item) || item.getItemMeta() == null)
             return;
 
-        event.setCancelled(true);
-        Player player = event.getPlayer();
-        BookMeta meta = (BookMeta) item.getItemMeta();
-        for(String page : meta.getPages()){
-            for(String command : page.split("\n")){
-                if (command.startsWith("#")) continue;
-
-                PlayerCommandPreprocessEvent preprocessEvent = new PlayerCommandPreprocessEvent(player, "/" + command);
-                Bukkit.getServer().getPluginManager().callEvent(preprocessEvent);
-                if(preprocessEvent.isCancelled())
-                    continue;
-
-                Bukkit.getLogger().log(Level.INFO, player.getName() + " dispatched command: " + command);
-                Bukkit.getServer().dispatchCommand(player, command);
+        if (event.getAction() != Action.LEFT_CLICK_AIR && event.getAction() != Action.LEFT_CLICK_BLOCK) {
+            if (event.getAction() == Action.RIGHT_CLICK_AIR) {
+                playerSet.add(event.getPlayer());
             }
+            return;
         }
+        if (playerSet.remove(event.getPlayer())) {
+            return;
+        }
+
+        event.setCancelled(true);
+        new ScriptExecutor((BookMeta) item.getItemMeta(), event.getPlayer());
     }
 
     private boolean isNoBook(ItemStack item){
@@ -71,4 +76,69 @@ public class ScriptListener implements Listener {
         }
     }
 
+    private static class ScriptExecutor {
+
+        private final Player player;
+        private final List<String> commands = new ArrayList<>();
+        private int index = 0;
+
+        public ScriptExecutor(BookMeta bookMeta, Player player) {
+            this.player = player;
+
+            for(String page : bookMeta.getPages()) {
+                for (String command : page.split("\n")) {
+                    if (command.startsWith("#") || command.trim().isEmpty()) continue;
+                    commands.add(command);
+                }
+            }
+            if (commands.isEmpty()) return;
+            resume();
+        }
+
+        private void resume() {
+            if (!player.isOnline()) {
+                return;
+            }
+
+            while (index < commands.size()) {
+                String command = commands.get(index++);
+
+                if (command.toLowerCase().startsWith("sleep")) {
+                    ScriptListener.sleepCommand(this, generateArgumentArray("sleep", command));
+                    return;
+                }
+
+                PlayerCommandPreprocessEvent preprocessEvent = new PlayerCommandPreprocessEvent(player, "/" + command);
+                Bukkit.getServer().getPluginManager().callEvent(preprocessEvent);
+                if (preprocessEvent.isCancelled()) {
+                    continue;
+                }
+
+                Bukkit.getLogger().log(Level.INFO, player.getName() + " dispatched command: " + command);
+                Bukkit.getServer().dispatchCommand(player, command);
+            }
+        }
+
+    }
+
+    private static String[] generateArgumentArray(String command, String fullCommand) {
+        return fullCommand.substring(command.length()).trim().split(" ");
+    }
+
+    private static void sleepCommand(ScriptExecutor scriptExecutor, String[] args) {
+        int sleepTime = 1;
+        if (args.length > 0) {
+            try {
+                sleepTime = Integer.parseInt(args[0]);
+                if (sleepTime <= 0) {
+                    scriptExecutor.player.sendMessage(BauSystem.PREFIX + "§cDie Zeit muss eine Zahl großer 0 sein.");
+                    sleepTime = 1;
+                }
+            } catch (NumberFormatException e) {
+                scriptExecutor.player.sendMessage(BauSystem.PREFIX + "§cDie Zeit darf nur aus Zahlen bestehen.");
+            }
+        }
+        Bukkit.getScheduler().runTaskLater(BauSystem.getPlugin(), scriptExecutor::resume, sleepTime);
+    }
+
 }