X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=penrose.c;h=ccde30d8b4a140d029862c4fdb48ea94793915c6;hb=a0a581c8b5422bf0c5ed3fde6aa25811e4eb89fc;hp=7adab03c70ba51bfac4d807ea78488eb9c39a725;hpb=89bfecaa5aa39469a3e368d44f517aff5c904354;p=sgt-puzzles.git

diff --git a/penrose.c b/penrose.c
index 7adab03..ccde30d 100644
--- a/penrose.c
+++ b/penrose.c
@@ -434,7 +434,7 @@ void penrose_count_tiles(int depth, int *nlarge, int *nsmall)
  * (later mail: this is an overestimate by about 5%)
  */
 
-int penrose(penrose_state *state, int which)
+int penrose(penrose_state *state, int which, int angle)
 {
     vector vo = v_origin();
     vector vb = v_origin();
@@ -444,6 +444,9 @@ int penrose(penrose_state *state, int which)
 
     vb.b = state->start_size;
 
+    vo = v_rotate(vo, angle);
+    vb = v_rotate(vb, angle);
+
     if (which == PENROSE_P2)
         return penrose_p2_large(state, 0, 1, vo, vb);
     else