fix: getTime

- исправлен null в getTime

src/main/java/com/reider745/world/WorldMethod.java

@@ -4,12 +4,22 @@ import cn.nukkit.level.Level;
 import com.reider745.InnerCoreServer;
 
 public class WorldMethod {
+
+    private static Level getLevel(){
+        return InnerCoreServer.server.getDefaultLevel();
+    }
+
     public static long getTime() {
-        return InnerCoreServer.server.getLevel(0).getTime() % Level.TIME_FULL;
+        final Level level = getLevel();
+        if(level != null)
+            return level.getTime() % Level.TIME_FULL;
+        return 0;
     }
 
     public static void setTime(int time) {
-        InnerCoreServer.server.getLevel(0).setTime(time);
+        final Level level = getLevel();
+        if(level != null)
+            level.setTime(time);
     }
 
     public static int getGameMode() {
@@ -28,7 +38,7 @@ public class WorldMethod {
     }
 
     public static double getRainLevel() {
-        return 0;
+
     }
 
     public static void setRainLevel(float v) {
@@ -42,6 +52,9 @@ public class WorldMethod {
     }
 
     public static long getSeed() {
-        return InnerCoreServer.server.getLevelByName("world").getSeed();
+        final Level level = getLevel();
+        if(level != null)
+            return level.getSeed();
+        return 0;
     }
 }