diff --git a/src/duskdefs.env b/src/duskdefs.env
index ae57014..03af4e3 100644
--- a/src/duskdefs.env
+++ b/src/duskdefs.env
@@ -3,16 +3,29 @@
 # This software is released under the MIT License.
 # https://opensource.org/licenses/MIT
 
+ENTITY_DIR_SOUTH = 0
+ENTITY_DIR_WEST = 1
+ENTITY_DIR_NORTH = 2
+ENTITY_DIR_EAST = 3
+
 CHUNK_WIDTH = 16
 CHUNK_HEIGHT = 16
 CHUNK_DEPTH = 4
 # CHUNK_VERTEX_COUNT_MAX = QUAD_VERTEXES * CHUNK_WIDTH * CHUNK_HEIGHT * 4
 CHUNK_VERTEX_COUNT_MAX=6144
+CHUNK_MESH_COUNT_MAX = 14
 
 TILE_WIDTH = 16.0
 TILE_HEIGHT = 16.0
 TILE_DEPTH = 16.0
 
+TILE_SHAPE_NULL = 0
+TILE_SHAPE_FLOOR = 1
+TILE_SHAPE_RAMP_SOUTH = 2
+TILE_SHAPE_RAMP_EAST = 3
+TILE_SHAPE_RAMP_NORTH = 4
+TILE_SHAPE_RAMP_WEST = 5
+
 RPG_CAMERA_FOV = 70
 RPG_CAMERA_PIXELS_PER_UNIT = 1.0
 RPG_CAMERA_Z_OFFSET = 24.0
diff --git a/src/rpg/entity/entitydir.h b/src/rpg/entity/entitydir.h
index 4332b76..3b34b6e 100644
--- a/src/rpg/entity/entitydir.h
+++ b/src/rpg/entity/entitydir.h
@@ -9,11 +9,6 @@
 #include "rpg/world/worldpos.h"
 
 typedef enum {
-  ENTITY_DIR_SOUTH = 0,
-  ENTITY_DIR_EAST = 1,
-  ENTITY_DIR_WEST = 2,
-  ENTITY_DIR_NORTH = 3,
-
   ENTITY_DIR_UP = ENTITY_DIR_NORTH,
   ENTITY_DIR_DOWN = ENTITY_DIR_SOUTH,
   ENTITY_DIR_LEFT = ENTITY_DIR_WEST,
diff --git a/src/rpg/world/chunk.h b/src/rpg/world/chunk.h
index 9f3fa14..9187ced 100644
--- a/src/rpg/world/chunk.h
+++ b/src/rpg/world/chunk.h
@@ -10,11 +10,6 @@
 #include "worldpos.h"
 #include "display/mesh/quad.h"
 
-#define CHUNK_VERTEX_COUNT_MAX ( \
-  QUAD_VERTEX_COUNT * CHUNK_WIDTH * CHUNK_HEIGHT * 4 \
-)
-#define CHUNK_MESH_COUNT_MAX 14
-
 typedef struct chunk_s {
   chunkpos_t position;
   tile_t tiles[CHUNK_TILE_COUNT];
diff --git a/tools/editortool/map/tile.py b/tools/editortool/map/tile.py
index 1f1555c..0753b38 100644
--- a/tools/editortool/map/tile.py
+++ b/tools/editortool/map/tile.py
@@ -1,9 +1,11 @@
 from OpenGL.GL import *
 from editortool.map.mapdefs import TILE_WIDTH, TILE_HEIGHT, TILE_DEPTH, CHUNK_WIDTH, CHUNK_HEIGHT, CHUNK_DEPTH
+from enum import Enum
 
 class Tile:
-  def __init__(self, chunk, x, y, z, tileIndex):
-    self.tileId = 0
+  def __init__(self, chunk, x, y, z):
+    self.shape = TILE_SHAPE_NULL
+
     self.chunk = chunk
     self.x = x
     self.y = y
@@ -14,7 +16,7 @@ class Tile:
     self.posZ = z * TILE_DEPTH + chunk.z * CHUNK_DEPTH * TILE_DEPTH
 
   def buffer(self, vertexBuffer):
-    if self.z != 0:
+    if self.shape == TILE_SHAPE_NULL:
       return
     # if self.x != 0 or self.y != 0 or self.z != 0:
     #     return  # Only buffer the tile at (0,0,0)
diff --git a/tools/editortool/maptool.py b/tools/editortool/maptool.py
index 4bac1f2..dca094a 100644
--- a/tools/editortool/maptool.py
+++ b/tools/editortool/maptool.py
@@ -7,7 +7,7 @@ from editortool.map.mapinfopanel import MapInfoPanel
 from editortool.map.menubar import MapMenubar
 from editortool.map.statusbar import StatusBar
 from editortool.map.map import Map
-from editortool.map.mapdefs import TILE_WIDTH, TILE_HEIGHT, TILE_DEPTH
+from editortool.map.mapdefs import CHUNK_WIDTH, CHUNK_HEIGHT, CHUNK_DEPTH
 from editortool.map.selectbox import SelectBox
 from editortool.map.camera import Camera
 from editortool.map.grid import Grid
@@ -101,9 +101,9 @@ class MapWindow(QMainWindow):
         amtZ = -1
 
       if event.modifiers() & Qt.ShiftModifier:
-        amtX *= int(TILE_WIDTH)
-        amtY *= int(TILE_HEIGHT)
-        amtZ *= int(TILE_DEPTH)
+        amtX *= CHUNK_WIDTH
+        amtY *= CHUNK_HEIGHT
+        amtZ *= CHUNK_DEPTH
 
       if amtX != 0 or amtY != 0 or amtZ != 0:
         self.map.moveRelative(amtX, amtY, amtZ)