Added basic custom requirement API

src/main/java/me/blackvein/quests/CustomRequirement.java

@@ -0,0 +1,28 @@
+package me.blackvein.quests;
+
+import org.bukkit.entity.Player;
+
+public abstract class CustomRequirement {
+    
+    private String name = null;
+    private String author = null;
+    
+    public abstract boolean testRequirement(Player p);
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+    
+}

src/main/java/me/blackvein/quests/Quest.java

@@ -52,6 +52,7 @@ public class Quest {
     List<Integer> mcMMOAmountReqs = new LinkedList<Integer>();
     String heroesPrimaryClassReq = null;
     String heroesSecondaryClassReq = null;
+    List<String> customRequirements = new LinkedList<String>();
     public String failRequirements = null;
     //
     //Rewards
@@ -225,6 +226,25 @@ public class Quest {
 
         }
         
+        for (String s : customRequirements){
+            
+            CustomRequirement found = null;
+            for(CustomRequirement cr : plugin.customRequirements){
+                if(cr.getName().equalsIgnoreCase(s)){
+                    found = cr;
+                    break;
+                }
+            }
+            
+            if(found != null){
+                if(found.testRequirement(player) == false)
+                    return false;
+            }else{
+                Quests.printWarning("[Quests] Quester \"" + player.getName() + "\" attempted to take Quest \"" + name + "\", but the Custom Requirement \"" + s + "\" could not be found. Does it still exist?");
+            }
+            
+        }
+
         if (quester.questPoints < questPointsReq) {
             return false;
         }
@@ -609,6 +629,10 @@ public class Quest {
                 return false;
             }
             
+            if (other.customRequirements.equals(customRequirements) == false){
+                return false;
+            }
+
             if (other.permissions.equals(permissions) == false) {
                 return false;
             }

src/main/java/me/blackvein/quests/QuestFactory.java

@@ -1020,6 +1020,7 @@ public class QuestFactory implements ConversationAbandonedListener, ColorUtil {
         LinkedList<Integer> mcMMOAmountReqs = null;
         String heroesPrimaryReq = null;
         String heroesSecondaryReq = null;
+        LinkedList<String> customReqs = null;
         String failMessage = null;
 
         Integer moneyRew = null;
@@ -1087,6 +1088,10 @@ public class QuestFactory implements ConversationAbandonedListener, ColorUtil {
             heroesSecondaryReq = (String) cc.getSessionData(CK.REQ_HEROES_SECONDARY_CLASS);
         }
         
+        if (cc.getSessionData(CK.REQ_CUSTOM) != null) {
+            customReqs = (LinkedList<String>) cc.getSessionData(CK.REQ_CUSTOM);
+        }
+
         if (cc.getSessionData(CK.Q_FAIL_MESSAGE) != null) {
             failMessage = (String) cc.getSessionData(CK.Q_FAIL_MESSAGE);
         }
@@ -1160,7 +1165,7 @@ public class QuestFactory implements ConversationAbandonedListener, ColorUtil {
         cs.set("initial-event", initialEvent);
         cs.set("region", region);
 
-        if (moneyReq != null || questPointsReq != null || itemReqs != null && itemReqs.isEmpty() == false || permReqs != null && permReqs.isEmpty() == false || (questReqs != null && questReqs.isEmpty() == false) || (questBlocks != null && questBlocks.isEmpty() == false) || (mcMMOSkillReqs != null && mcMMOSkillReqs.isEmpty() == false) || heroesPrimaryReq != null || heroesSecondaryReq != null) {
+        if (moneyReq != null || questPointsReq != null || itemReqs != null && itemReqs.isEmpty() == false || permReqs != null && permReqs.isEmpty() == false || (questReqs != null && questReqs.isEmpty() == false) || (questBlocks != null && questBlocks.isEmpty() == false) || (mcMMOSkillReqs != null && mcMMOSkillReqs.isEmpty() == false) || heroesPrimaryReq != null || heroesSecondaryReq != null || customReqs != null) {
 
             ConfigurationSection reqs = cs.createSection("requirements");
             List<String> items = new LinkedList<String>();
@@ -1183,6 +1188,7 @@ public class QuestFactory implements ConversationAbandonedListener, ColorUtil {
             reqs.set("mcmmo-amounts", mcMMOAmountReqs);
             reqs.set("heroes-primary-class", heroesPrimaryReq);
             reqs.set("heroes-secondary-class", heroesSecondaryReq);
+            reqs.set("custom-requirements", customReqs);
             reqs.set("fail-requirement-message", failMessage);
 
         } else {

src/main/java/me/blackvein/quests/Quests.java

@@ -82,10 +82,15 @@ import com.sk89q.worldguard.protection.managers.RegionManager;
 import com.sk89q.worldguard.protection.regions.ProtectedRegion;
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
+import java.lang.reflect.Constructor;
 import java.net.URL;
+import java.net.URLClassLoader;
 import java.net.URLConnection;
 import java.net.URLEncoder;
 import java.sql.Date;
+import java.util.Enumeration;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
 
 public class Quests extends JavaPlugin implements ConversationAbandonedListener, ColorUtil {
 
@@ -108,6 +113,7 @@ public class Quests extends JavaPlugin implements ConversationAbandonedListener,
     public static String effect = "note";
     public final Map<String, Quester> questers = new HashMap<String, Quester>();
     public final List<String> questerBlacklist = new LinkedList<String>();
+    public final List<CustomRequirement> customRequirements = new LinkedList<CustomRequirement>();
     public final LinkedList<Quest> quests = new LinkedList<Quest>();
     public final LinkedList<Event> events = new LinkedList<Event>();
     public final LinkedList<NPC> questNPCs = new LinkedList<NPC>();
@@ -223,6 +229,7 @@ public class Quests extends JavaPlugin implements ConversationAbandonedListener,
         }
 
         loadConfig();
+        loadModules();
         lang = new Lang(this);
         lang.initPhrases();
         lang.save();
@@ -423,6 +430,66 @@ public class Quests extends JavaPlugin implements ConversationAbandonedListener,
 
     }
     
+    public void loadModules() {
+        
+        File f = new File(this.getDataFolder(), "modules");
+        if(f.exists() && f.isDirectory()){
+            
+            File[] modules = f.listFiles();
+            for(File module : modules){
+                
+                loadModule(module);
+                
+            }
+            
+        }else {
+            
+            f.mkdir();
+            
+        }
+        
+    }
+    
+    public void loadModule(File jar){
+        
+        try{
+           
+            JarFile jarFile = new JarFile(jar);
+            Enumeration e = jarFile.entries();
+ 
+            URL[] urls = { new URL("jar:file:" + jar.getPath() + "!/") };
+           
+            ClassLoader cl = URLClassLoader.newInstance(urls, getClassLoader());
+ 
+            while (e.hasMoreElements()) {
+               
+                JarEntry je = (JarEntry) e.nextElement();
+                if(je.isDirectory() || !je.getName().endsWith(".class")){
+                    continue;
+                }
+               
+                String className = je.getName().substring(0,je.getName().length()-6);
+                className = className.replace('/', '.');
+                Class<?> c = Class.forName(className, true, cl);
+                Class<? extends CustomRequirement> requirementClass = c.asSubclass(CustomRequirement.class);
+                Constructor<? extends CustomRequirement> cstrctr = requirementClass.getConstructor();
+                CustomRequirement requirement = cstrctr.newInstance();
+                customRequirements.add(requirement);
+                String name = requirement.getName() == null ? "[" + jar.getName() + "]" : requirement.getName();
+                String author = requirement.getAuthor() == null ? "[Unknown]" : requirement.getAuthor();
+                printInfo("[Quests] Loaded Module: " + name + " by " + author);
+            }
+       
+        }catch (Exception e){
+            printSevere("[Quests] Error: Unable to load module from file: " + jar.getName());
+            if(debug){
+                printSevere("[Quests] Error log:");
+                e.printStackTrace();
+            }
+        }
+        
+    }
+
     public void printHelp(Player player) {
 
         player.sendMessage(GOLD + "- Quests -");
@@ -2210,6 +2277,27 @@ public class Quests extends JavaPlugin implements ConversationAbandonedListener,
 
                     }
                     
+                    if (config.contains("quests." + s + ".requirements.custom-requirements")) {
+                        quest.customRequirements = config.getStringList("quests." + s + ".requirements.custom-requirements");
+                        
+                        for(String req : quest.customRequirements){
+                            
+                            boolean found = false;
+                            
+                            for(CustomRequirement cr : customRequirements){
+                                if(cr.getName().equalsIgnoreCase(req)){
+                                    found = true;
+                                    break;
+                                }
+                            }
+                            
+                            if(!found){
+                                printWarning("[Quests] Custom requirement \"" + req + "\" for Quest \"" + quest.name + "\" could not be found!");
+                            }
+                            
+                        }
+                    }
+
                 }
 
                 quest.plugin = this;

src/main/java/me/blackvein/quests/prompts/RequirementsPrompt.java

@@ -6,6 +6,7 @@ import java.util.Collections;
 import java.util.Comparator;
 import java.util.LinkedList;
 import java.util.List;
+import me.blackvein.quests.CustomRequirement;
 
 import me.blackvein.quests.util.ColorUtil;
 import me.blackvein.quests.Quest;
@@ -30,7 +31,7 @@ public class RequirementsPrompt extends FixedSetPrompt implements ColorUtil {
 
     public RequirementsPrompt(Quests plugin, QuestFactory qf) {
 
-        super("1", "2", "3", "4", "5", "6", "7", "8", "9", "10");
+        super("1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11");
         quests = plugin;
         factory = qf;
 
@@ -135,15 +136,27 @@ public class RequirementsPrompt extends FixedSetPrompt implements ColorUtil {
             text += GRAY + "8 - Set Heroes requirements (Heroes not installed)\n";
         }
 
-        if (context.getSessionData(CK.REQ_MONEY) == null && context.getSessionData(CK.REQ_QUEST_POINTS) == null && context.getSessionData(CK.REQ_QUEST_BLOCK) == null && context.getSessionData(CK.REQ_ITEMS) == null && context.getSessionData(CK.REQ_PERMISSION) == null && context.getSessionData(CK.REQ_QUEST) == null && context.getSessionData(CK.REQ_QUEST_BLOCK) == null && context.getSessionData(CK.REQ_MCMMO_SKILLS) == null && context.getSessionData(CK.REQ_HEROES_PRIMARY_CLASS) == null && context.getSessionData(CK.REQ_HEROES_SECONDARY_CLASS) == null) {
+        if (context.getSessionData(CK.REQ_CUSTOM) == null) {
-            text += GRAY + "" + BOLD + "9 - " + RESET + GRAY + "Set fail requirements message (No requirements set)\n";
+            text += BLUE + "" + BOLD + "9 - " + RESET + ITALIC + PURPLE + "Custom Requirements (None set)\n";
-        } else if (context.getSessionData(CK.Q_FAIL_MESSAGE) == null) {
-            text += RED + "" + BOLD + "9 - " + RESET + RED + "Set fail requirements message (Required)\n";
         } else {
-            text += BLUE + "" + BOLD + "9 - " + RESET + YELLOW + "Set fail requirements message" + GRAY + "(" + AQUA + "\"" + context.getSessionData(CK.Q_FAIL_MESSAGE) + "\"" + GRAY + ")\n";
+            text += BLUE + "" + BOLD + "9 - " + RESET + ITALIC + PURPLE + "Custom Requirements\n";
+            LinkedList<String> customReqs = (LinkedList<String>) context.getSessionData(CK.REQ_CUSTOM);
+            for(String s : customReqs){
+                
+                text += RESET + "" + PURPLE + "  - " + PINK + s + "\n";
+                
+            }
         }
 
-        text += GREEN + "" + BOLD + "10" + RESET + YELLOW + " - Done";
+        if (context.getSessionData(CK.REQ_MONEY) == null && context.getSessionData(CK.REQ_QUEST_POINTS) == null && context.getSessionData(CK.REQ_QUEST_BLOCK) == null && context.getSessionData(CK.REQ_ITEMS) == null && context.getSessionData(CK.REQ_PERMISSION) == null && context.getSessionData(CK.REQ_QUEST) == null && context.getSessionData(CK.REQ_QUEST_BLOCK) == null && context.getSessionData(CK.REQ_MCMMO_SKILLS) == null && context.getSessionData(CK.REQ_HEROES_PRIMARY_CLASS) == null && context.getSessionData(CK.REQ_HEROES_SECONDARY_CLASS) == null && context.getSessionData(CK.REQ_CUSTOM) == null) {
+            text += GRAY + "" + BOLD + "10 - " + RESET + GRAY + "Set fail requirements message (No requirements set)\n";
+        } else if (context.getSessionData(CK.Q_FAIL_MESSAGE) == null) {
+            text += RED + "" + BOLD + "10 - " + RESET + RED + "Set fail requirements message (Required)\n";
+        } else {
+            text += BLUE + "" + BOLD + "10 - " + RESET + YELLOW + "Set fail requirements message" + GRAY + "(" + AQUA + "\"" + context.getSessionData(CK.Q_FAIL_MESSAGE) + "\"" + GRAY + ")\n";
+        }
+
+        text += GREEN + "" + BOLD + "11" + RESET + YELLOW + " - Done";
 
         return text;
 
@@ -177,9 +190,11 @@ public class RequirementsPrompt extends FixedSetPrompt implements ColorUtil {
                 return new RequirementsPrompt(quests, factory);
             }
         } else if (input.equalsIgnoreCase("9")) {
-            return new FailMessagePrompt();
+            return new CustomRequirementsPrompt();
         } else if (input.equalsIgnoreCase("10")) {
-            if (context.getSessionData(CK.REQ_MONEY) != null || context.getSessionData(CK.REQ_QUEST_POINTS) != null || context.getSessionData(CK.REQ_ITEMS) != null || context.getSessionData(CK.REQ_PERMISSION) != null || context.getSessionData(CK.REQ_QUEST) != null || context.getSessionData(CK.REQ_QUEST_BLOCK) != null || context.getSessionData(CK.REQ_MCMMO_SKILLS) != null || context.getSessionData(CK.REQ_HEROES_PRIMARY_CLASS) != null || context.getSessionData(CK.REQ_HEROES_SECONDARY_CLASS) != null) {
+            return new FailMessagePrompt();
+        } else if (input.equalsIgnoreCase("11")) {
+            if (context.getSessionData(CK.REQ_MONEY) != null || context.getSessionData(CK.REQ_QUEST_POINTS) != null || context.getSessionData(CK.REQ_ITEMS) != null || context.getSessionData(CK.REQ_PERMISSION) != null || context.getSessionData(CK.REQ_QUEST) != null || context.getSessionData(CK.REQ_QUEST_BLOCK) != null || context.getSessionData(CK.REQ_MCMMO_SKILLS) != null || context.getSessionData(CK.REQ_HEROES_PRIMARY_CLASS) != null || context.getSessionData(CK.REQ_HEROES_SECONDARY_CLASS) != null || context.getSessionData(CK.REQ_CUSTOM) != null) {
 
                 if (context.getSessionData(CK.Q_FAIL_MESSAGE) == null) {
                     context.getForWhom().sendRawMessage(RED + "You must set a fail requirements message!");
@@ -529,6 +544,74 @@ public class RequirementsPrompt extends FixedSetPrompt implements ColorUtil {
         }
     }
     
+    private class CustomRequirementsPrompt extends StringPrompt {
+
+        @Override
+        public String getPromptText(ConversationContext context) {
+            String text = PINK + "- Custom Requirements -\n";
+            if(quests.customRequirements.isEmpty()){
+                text += BOLD + "" + PURPLE + "(No modules loaded)";
+            }else {
+                for(CustomRequirement cr : quests.customRequirements)
+                    text += PURPLE + " - " + cr.getName() + "\n";
+            }
+            
+            return text + YELLOW + "Enter the name of a custom requirement to add, or enter \'clear\' to clear all custom requirements, or \'cancel\' to return.";
+        }
+
+        @Override
+        public Prompt acceptInput(ConversationContext context, String input) {
+
+            if (input.equalsIgnoreCase("cancel") == false && input.equalsIgnoreCase("clear") == false) {
+
+                CustomRequirement found = null;
+                for(CustomRequirement cr : quests.customRequirements){
+                    if(cr.getName().equalsIgnoreCase(input)){
+                        found = cr;
+                        break;
+                    }
+                }
+                
+                if(found == null){
+                    for(CustomRequirement cr : quests.customRequirements){
+                        if(cr.getName().toLowerCase().contains(input.toLowerCase())){
+                            found = cr;
+                            break;
+                        }
+                    }
+                }
+                
+                if(found != null){
+                    
+                    if(context.getSessionData(CK.REQ_CUSTOM) != null){
+                        LinkedList<String> list = (LinkedList<String>) context.getSessionData(CK.REQ_CUSTOM);
+                        if(list.contains(found.getName()) == false){
+                            list.add(found.getName());
+                        }else{
+                            context.getForWhom().sendRawMessage(YELLOW + "That custom requirement has already been added!");
+                            return new CustomRequirementsPrompt();
+                        }
+                    }else{
+                        LinkedList<String> list = new LinkedList<String>();
+                        list.add(found.getName());
+                        context.setSessionData(CK.REQ_CUSTOM, list);
+                    }
+                    
+                }else{
+                    context.getForWhom().sendRawMessage(YELLOW + "Custom requirement module not found.");
+                    return new CustomRequirementsPrompt();
+                }
+
+            } else if (input.equalsIgnoreCase("clear")) {
+                context.setSessionData(CK.REQ_CUSTOM, null);
+                context.getForWhom().sendRawMessage(YELLOW + "Custom requirements cleared.");
+            }
+
+            return new RequirementsPrompt(quests, factory);
+
+        }
+    }
+
     private class mcMMOPrompt extends FixedSetPrompt {
 
         public mcMMOPrompt() {

src/main/java/me/blackvein/quests/util/CK.java

@@ -29,6 +29,7 @@ public class CK {
         public static final String REQ_HEROES_SECONDARY_CLASS = "heroesSecondaryClassReq";
 	public static final String REQ_QUEST = "questReqs";
 	public static final String REQ_QUEST_BLOCK = "questBlocks";
+        public static final String REQ_CUSTOM = "customReqs";
 
 	//Rewards
 	public static final String REW_MONEY = "moneyRew";