Added 'generate-structure' setting support and WorldCreator property.

Fixes BUKKIT-655 and BUKKIT-592

src/main/java/net/minecraft/server/MinecraftServer.java

@@ -217,6 +217,7 @@ public class MinecraftServer implements Runnable, ICommandListener, IMinecraftSe
         j = WorldSettings.a(j);
         log.info("Default game type: " + j);
         // CraftBukkit start (+ removed worldsettings and servernbtmanager)
+        boolean generateStructures = this.propertyManager.getBoolean("generate-structures", true);
         int worldCount = 3;
 
         for (int k = 0; k < worldCount; ++k) {
@@ -244,7 +245,7 @@ public class MinecraftServer implements Runnable, ICommandListener, IMinecraftSe
             String name = (dimension == 0) ? s : s + "_" + worldType;
 
             ChunkGenerator gen = this.server.getGenerator(name);
-            WorldSettings settings = new WorldSettings(i, j, true, false, worldtype);
+            WorldSettings settings = new WorldSettings(i, j, generateStructures, false, worldtype);
 
             if (k == 0) {
                 world = new WorldServer(this, new ServerNBTManager(server.getWorldContainer(), s, true), s, dimension, settings, org.bukkit.World.Environment.getEnvironment(dimension), gen); // CraftBukkit

src/main/java/org/bukkit/craftbukkit/CraftServer.java

@@ -521,6 +521,7 @@ public final class CraftServer implements Server {
         File folder = new File(getWorldContainer(), name);
         World world = getWorld(name);
         WorldType type = WorldType.a(creator.type().getName());
+        boolean generateStructures = creator.generateStructures();
 
         if (world != null) {
             return world;
@@ -552,7 +553,8 @@ public final class CraftServer implements Server {
             }
         } while(used);
         boolean hardcore = false;
-        WorldServer internal = new WorldServer(console, new ServerNBTManager(getWorldContainer(), name, true), name, dimension, new WorldSettings(creator.seed(), getDefaultGameMode().getValue(), true, hardcore, type), creator.environment(), generator);
+
+        WorldServer internal = new WorldServer(console, new ServerNBTManager(getWorldContainer(), name, true), name, dimension, new WorldSettings(creator.seed(), getDefaultGameMode().getValue(), generateStructures, hardcore, type), creator.environment(), generator);
 
         if (!(worlds.containsKey(name.toLowerCase()))) {
             return null;

src/main/java/org/bukkit/craftbukkit/CraftWorld.java

@@ -978,4 +978,8 @@ public class CraftWorld implements World {
     public org.bukkit.WorldType getWorldType() {
         return org.bukkit.WorldType.getByName(world.getWorldData().getType().name());
     }
+
+    public boolean canGenerateStructures() {
+        return world.getWorldData().o();
+    }
 }