added world_time and day_time. Add ability to store app data in shared space. as well as store in file hierarchies. Fixes #215

src/main/java/carpet/script/bundled/Module.java

@@ -4,7 +4,6 @@ import carpet.CarpetServer;
 import net.minecraft.nbt.Tag;
 
 import java.io.File;
-import java.io.IOException;
 import java.nio.file.Files;
 
 import static carpet.script.bundled.FileModule.read;
@@ -16,30 +15,38 @@ public abstract class Module
     public abstract String getCode();
     public abstract boolean isLibrary();
 
-    public Tag getData(String file)
+    private static String getDescriptor(Module module, String file, boolean isShared)
     {
+        if (isShared)
+        {
+            return "shared/"+file;
+        }
+        else if (module != null && module.getName() != null) // appdata
+        {
+            return module.getName()+".data"+(file==null?"":"/"+file);
+        }
+        else
+        {
+            throw  new RuntimeException("Invalid file descriptor: "+file);
+        }
+    }
+
+    public static Tag getData(Module module, String file, boolean isShared)
+    {
+        if (!isShared && (module == null || module.getName() == null)) return null;
         File dataFile = CarpetServer.minecraft_server.getLevelStorage().resolveFile(
-                CarpetServer.minecraft_server.getLevelName(), "scripts/"+getName()+".data"+(file==null?"":"."+file)+".nbt");
+                CarpetServer.minecraft_server.getLevelName(), "scripts/"+getDescriptor(module, file, isShared)+".nbt");
         if (!Files.exists(dataFile.toPath()) || !(dataFile.isFile())) return null;
         return read(dataFile);
     }
 
-    public void saveData(String file, Tag globalState)
+    public static boolean saveData(Module module, String file, Tag globalState, boolean isShared)
     {
+        if (!isShared && (module == null || module.getName() == null)) return false;
         File dataFile =CarpetServer.minecraft_server.getLevelStorage().resolveFile(
-                CarpetServer.minecraft_server.getLevelName(), "scripts/"+getName()+".data"+(file==null?"":"."+file)+".nbt");
-        if (!Files.exists(dataFile.toPath().getParent()))
-        {
-            try
-            {
-                Files.createDirectory(dataFile.toPath().getParent());
-            }
-            catch (IOException ignored)
-            {
-            }
-        }
-        write(globalState, dataFile);
-
+                CarpetServer.minecraft_server.getLevelName(), "scripts/"+getDescriptor(module, file, isShared)+".nbt");
+        if (!Files.exists(dataFile.toPath().getParent()) && !dataFile.getParentFile().mkdirs()) return false;
+        return write(globalState, dataFile);
     }
 
     @Override