Daniel/orbit/blend and randomizer fix (#206)

* fix blend flips and randomizer
* recorded tests

VortexEngine/src/Menus/MenuList/Randomizer.cpp

@@ -372,8 +372,13 @@ bool Randomizer::rollCustomPattern(Random &ctx, Mode *pMode, LedPos pos)
   // colors instead of blinking each color in the set
   if (!ctx.next8(0, 3)) {
     newPat = PATTERN_BLEND;
-    // this is the number of blinks to a complementary color
-    args.arg7 = ctx.next8(0, 3);
+    // set the blend speed
+    args.arg6 = ctx.next8(1, 10);
+    // 1/2 chance to make the blend a flipping blend of some kind
+    if (!ctx.next8(0, 2)) {
+      // this is the number of blinks to a complementary color
+      args.arg7 = ctx.next8(0, 3);
+    }
     // up to arg7 is filled now
     args.numArgs = 7;
   }

VortexEngine/src/Patterns/Single/BlendPattern.cpp

@@ -42,7 +42,10 @@ void BlendPattern::onBlinkOn()
   interpolate(m_cur.green, m_next.green);
   interpolate(m_cur.blue, m_next.blue);
   RGBColor col = m_cur;
-  if (m_flip) {
+  // it should be impossible for m_numFlips to be 0 and m_flip to be 1
+  // unless the pattern arg is changed mid-play which could happen with
+  // and editor or something, so check both for 0
+  if (m_flip && m_numFlips) {
     // convert to hsv
     HSVColor hsvCol = m_cur;
     // shift the hue by a flip size