Renamed the current nether to netherold, and made the new nether2 the default

overviewer_core/src/primitives/nether.h

@@ -0,0 +1,30 @@
+/* 
+ * This file is part of the Minecraft Overviewer.
+ *
+ * Minecraft Overviewer is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * Minecraft Overviewer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+ * Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with the Overviewer.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "../overviewer.h"
+
+#define NETHER_ROOF 127
+#define WIDTH 16
+#define DEPTH 16
+#define HEIGHT 256
+
+typedef struct {
+    int walked_chunk;
+
+    int remove_block[WIDTH][HEIGHT][DEPTH];
+    
+} RenderPrimitiveNether;