Fix eb & biome context

src/main/java/com/volmit/iris/core/commands/CommandStudio.java

@@ -267,9 +267,17 @@ public class CommandStudio implements DecreeExecutor {
             @Param(contextual = true, description = "The biome to edit")
                     IrisBiome biome
     ) {
-        if (noStudio()) return;
+        if (noStudio()) {
+            return;
+        }
 
         try {
+            if(biome.getLoadFile() == null)
+            {
+                sender().sendMessage(C.GOLD + "Cannot find the file for the biome you are in! Perhaps it was not loaded directly from a file?");
+                return;
+            }
+
             Desktop.getDesktop().open(biome.getLoadFile());
         } catch (Throwable e) {
             Iris.reportError(e);

src/main/java/com/volmit/iris/engine/framework/Engine.java

@@ -678,6 +678,14 @@ public interface Engine extends DataProvider, Fallible, LootProvider, BlockUpdat
         return getSurfaceBiome(x, z);
     }
 
+    default IrisBiome getBiomeOrMantle(int x, int y, int z) {
+        if (y <= getHeight(x, z) - 2) {
+            return getCaveOrMantleBiome(x, y, z);
+        }
+
+        return getSurfaceBiome(x, z);
+    }
+
     default String getObjectPlacementKey(int x, int y, int z) {
         PlacedObject o = getObjectPlacement(x, y, z);
 
@@ -718,4 +726,9 @@ public interface Engine extends DataProvider, Fallible, LootProvider, BlockUpdat
     }
 
     int getCacheID();
+
+    default IrisBiome getBiomeOrMantle(Location l)
+    {
+        return getBiomeOrMantle(l.getBlockX(), l.getBlockY(), l.getBlockZ());
+    }
 }