Added prototype planet sector land system

core/src/mindustry/world/TileGen.java

@@ -0,0 +1,19 @@
+package mindustry.world;
+
+import mindustry.content.*;
+
+public class TileGen{
+    public Block floor;
+    public Block block ;
+    public Block overlay;
+
+    {
+        reset();
+    }
+
+    public void reset(){
+        floor = Blocks.stone;
+        block = Blocks.air;
+        overlay = Blocks.air;
+    }
+}