Flip options for sprues (#251) (#277)

* Flipping works, now just need new argument

* Finishing up

* New test data

spec/data/sprues/card_flip.yml

@@ -0,0 +1,13 @@
+sheet_width: 8.5in
+sheet_height: 11in
+card_width: 2.5in
+card_height: 3.5in
+cards:
+- x: 0.5in
+  y: 1in
+- x: 3.0in
+  y: 1in
+  flip_vertical: true
+- x: 3.5in
+  y: 1in
+  flip_horizontal: true

spec/sprue_spec.rb

@@ -144,6 +144,15 @@ describe Squib::Sprue do
     )
   end
 
+  it 'loads a template with flipped cards' do
+    tmpl = Squib::Sprue.load(sprue_file('card_flip.yml'), 100)
+    expect(tmpl.cards.length).to eq(3)
+    expect(tmpl.cards.map { |card| card['flip_vertical'] })
+      .to eq( [false, true, false] )
+    expect(tmpl.cards.map { |card| card['flip_horizontal'] })
+      .to eq( [false, false, true] )
+  end
+
   it 'fails when sheet_width is not defined' do
     expect do
       Squib::Sprue.load(sprue_file('fail_no_sheet_width.yml'), 100)