1 files changed, 63 insertions, 0 deletions
diff --git a/dice-lang/src/bjc/dicelang/v2/dice/CompoundingDie.java b/dice-lang/src/bjc/dicelang/v2/dice/CompoundingDie.java
new file mode 100644
index 0000000..d5991ae
--- /dev/null
+++ b/dice-lang/src/bjc/dicelang/v2/dice/CompoundingDie.java
@@ -0,0 +1,63 @@
+package bjc.dicelang.v2.dice;
+
+import java.util.function.Predicate;
+
+public class CompoundingDie implements Die {
+	private Die source;
+
+	private Predicate<Long> compoundOn;
+	private String          compoundPattern;
+
+	public CompoundingDie(Die src, Predicate<Long> compound) {
+		this(src, compound, null);
+	}
+
+	public CompoundingDie(Die src, Predicate<Long> compound, String patt) {
+		source = src;
+
+		compoundOn      = compound;
+		compoundPattern = patt;
+	}
+
+	public boolean canOptimize() {
+		return source.canOptimize() && source.optimize() == 0;
+	}
+
+	public long optimize() {
+		return 0;
+	}
+
+	public long roll() {
+		long res = source.roll();
+		long oldRes = res;
+
+		while(compoundOn.test(oldRes)) {
+			oldRes = source.rollSingle();
+
+			res += oldRes;
+		}
+
+		return res;
+	}
+
+	public long rollSingle() {
+		long res = source.rollSingle();
+		long oldRes = res;
+
+		while(compoundOn.test(oldRes)) {
+			oldRes = source.rollSingle();
+
+			res += oldRes;
+		}
+
+		return res;
+	}
+
+	public String toString() {
+		if(compoundPattern == null) {
+			return source + "!!";
+		} else {
+			return source + "!!" + compoundPattern;
+		}
+	}
+}
+\ No newline at end of file