update to latest nukkit

Nukkit/build.gradle

@@ -1,13 +1,14 @@
 repositories {
     maven { url = "https://oss.sonatype.org/content/repositories/snapshots/"}
     maven {url "http://nexus.hc.to/content/repositories/pub_releases"}
+    maven {url "https://repo.potestas.xyz/main/"}
     flatDir {dirs 'lib'}
 }
 
 dependencies {
     compile project(':Core')
     compile 'com.google.guava:guava:17.0'
-    compile name: 'nukkit-1.0-SNAPSHOT'
+    compile 'cn.nukkit:nukkit:1.0-SNAPSHOT'
 }
 
 configurations.all {

Nukkit/src/main/java/com/plotsquared/nukkit/NukkitMain.java

@@ -388,9 +388,7 @@ public final class NukkitMain extends PluginBase implements Listener, IPlotMain
         }
         if (world != null) {
             try {
-                Field fieldInstance = Level.class.getDeclaredField("generatorInstance");
+                Generator gen = world.getGenerator();
-                fieldInstance.setAccessible(true);
-                Generator gen = (Generator) fieldInstance.get(world);
                 if (gen instanceof NukkitPlotGenerator) {
                     PS.get().loadWorld(worldName, (NukkitPlotGenerator) gen);
                 } else if (gen instanceof GeneratorWrapper) {

Nukkit/src/main/java/com/plotsquared/nukkit/listeners/WorldEvents.java

@@ -11,20 +11,11 @@ import com.intellectualcrafters.plot.PS;
 import com.intellectualcrafters.plot.generator.GeneratorWrapper;
 import com.intellectualcrafters.plot.object.PlotArea;
 import com.plotsquared.nukkit.generator.NukkitPlotGenerator;
-import java.lang.reflect.Field;
 import java.util.HashMap;
 
 public class WorldEvents implements Listener {
 
-    private final Field instance;
-
     public WorldEvents() {
-        try {
-            this.instance = Level.class.getDeclaredField("generatorInstance");
-            this.instance.setAccessible(true);
-        } catch (Throwable e) {
-            throw new RuntimeException(e);
-        }
     }
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
@@ -40,7 +31,7 @@ public class WorldEvents implements Listener {
     private void handle(Level level) {
         String name = level.getName();
         try {
-            Generator gen = (Generator) instance.get(level);
+            Generator gen = level.getGenerator();
             if (gen instanceof GeneratorWrapper) {
                 PS.get().loadWorld(name, (GeneratorWrapper<?>) gen);
             } else {