Mulling over the generic comparator issue

1 files changed, 39 insertions, 0 deletions

diff --git a/src/eu/equalparts/cardbase/comparator/ComparatorDelegates.java b/src/eu/equalparts/cardbase/comparator/ComparatorDelegates.java
new file mode 100644
index 0000000..5736381
--- /dev/null
+++ b/src/eu/equalparts/cardbase/comparator/ComparatorDelegates.java
@@ -0,0 +1,39 @@
+package eu.equalparts.cardbase.comparator;
+
+
+abstract class ComparatorDelegates {
+
+	private ComparatorDelegates() {}
+	
+	public static Integer compareManaCost(Comparable<String> field1, Comparable<String> field2) {
+		// avoid casting syntax nightmare
+		String mc1 = (String) field1, mc2 = (String) field2;
+		
+		// first by number of colours
+		int mc1count = 0, mc2count = 0;
+		if (mc1.contains("W")) mc1count++;
+		if (mc1.contains("U")) mc1count++;
+		if (mc1.contains("B")) mc1count++;
+		if (mc1.contains("R")) mc1count++;
+		if (mc1.contains("G")) mc1count++;
+		
+		if (mc2.contains("W")) mc2count++;
+		if (mc2.contains("U")) mc2count++;
+		if (mc2.contains("B")) mc2count++;
+		if (mc2.contains("R")) mc2count++;
+		if (mc2.contains("G")) mc2count++;
+		
+		if (mc1count != mc2count)
+			return (mc1count < mc2count) ? -1 : ((mc1count == mc2count) ? 0 : 1);
+		
+		// next by colour wheel
+		
+		return 0;
+	}
+	
+}
+/*
+ * first by number of colours
+ * next by colour wheel: white > blue > black > red > green
+ * next by cmc
+ */
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