diff --git a/pitfall/pitfall/kit/mixins/vector.rkt b/pitfall/pitfall/kit/mixins/vector.rkt
new file mode 100644
index 00000000..88e5d917
--- /dev/null
+++ b/pitfall/pitfall/kit/mixins/vector.rkt
@@ -0,0 +1,14 @@
+#lang racket/base
+(require racket/class)
+(provide vector-mixin)
+
+(define (vector-mixin %)
+  (class %
+    (super-new)
+    (field [(@_ctm _ctm) '(1 0 0 1 0 0)]
+           [(@_ctmStack _ctmStack) null])
+    
+    (define/public (initVector) (void))
+    
+    (define/public (transform m11 m12 m21 m22 dx dy)
+      (send this addContent "from vector/transform")))) ; todo
\ No newline at end of file