diff --git a/colormapping/colormapping.go b/colormapping/colormapping.go
new file mode 100644
index 0000000..709bd4c
--- /dev/null
+++ b/colormapping/colormapping.go
@@ -0,0 +1,5 @@
+package colormapping
+
+type ColorMapping struct {
+
+}
diff --git a/coords/mapblockcoords.go b/coords/mapblockcoords.go
index 120c652..2e8af6a 100644
--- a/coords/mapblockcoords.go
+++ b/coords/mapblockcoords.go
@@ -8,6 +8,10 @@ func NewMapBlockCoords(x,y,z int) MapBlockCoords {
   return MapBlockCoords{X:x, Y:y, Z:z}
 }
 
+type MapBlockRange struct {
+  pos1, pos2 MapBlockCoords
+}
+
 const (
   MaxCoord = 2047
   MinCoord = -2047
diff --git a/mapblockaccessor/mapblockaccessor.go b/mapblockaccessor/mapblockaccessor.go
new file mode 100644
index 0000000..e69de29
diff --git a/mapblockrenderer/renderer.go b/mapblockrenderer/renderer.go
new file mode 100644
index 0000000..746ab80
--- /dev/null
+++ b/mapblockrenderer/renderer.go
@@ -0,0 +1,20 @@
+package mapblockrenderer
+
+import (
+  "mapserver/coords"
+  "mapserver/db"
+  "mapserver/colormapping"
+)
+
+type MapBlockRenderer struct {
+  accessor *coords.DBAccessor
+  colors *colormapping.ColorMapping
+}
+
+func NewMapBlockRenderer(accessor *coords.DBAccessor, colors *colormapping.ColorMapping){
+  //TODO
+}
+
+func (r *MapBlockRenderer) Render(range coords.MapBlockRange){
+  //TODO
+}