Fixes crash if card count is not sufficient for evaluation

app/src/main/java/net/pokeranalytics/android/ui/modules/handhistory/evaluator/EvaluatorBridge.kt

@@ -51,12 +51,14 @@ class EvaluatorBridge {
 					val bcArray = boardCards.toTypedArray()
 					val hcArray = handCards.toTypedArray()
 
-					Combinator.combinations(bcArray, 3, 0, arrayOfNulls(3)) { bc ->
-						Combinator.combinations(hcArray, 2, 0, arrayOfNulls(2)) { hc ->
-							val fcc = arrayOf<net.pokeranalytics.android.ui.modules.handhistory.evaluator.Card?>()
-							fcc.plus(bc) // Five Card Combination
-							fcc.plus(hc)
-							result = min(result, Hand.evaluate(fcc))
+					if (bcArray.size >= 3 && hcArray.size >= 2) {
+						Combinator.combinations(bcArray, 3, 0, arrayOfNulls(3)) { bc ->
+							Combinator.combinations(hcArray, 2, 0, arrayOfNulls(2)) { hc ->
+								val fcc = arrayOf<net.pokeranalytics.android.ui.modules.handhistory.evaluator.Card?>()
+								fcc.plus(bc) // Five Card Combination
+								fcc.plus(hc)
+								result = min(result, Hand.evaluate(fcc))
+							}
 						}
 					}
 				}