Rearranged the source files and removed the makefile. To build run: go build ./...

model.go

@@ -7,10 +7,10 @@ package main
 /**
  * An abstract model interface.
  */
-type IModel interface (
+type Model interface {
     
     /**
      * The dimensions of the model (width, height).
      */
     GetDimensions()     (int, int)
-)
+}