1 files changed, 60 insertions, 0 deletions
diff --git a/base/src/bjc/dicelang/dice/CompoundDie.java b/base/src/bjc/dicelang/dice/CompoundDie.java
new file mode 100644
index 0000000..0793872
--- /dev/null
+++ b/base/src/bjc/dicelang/dice/CompoundDie.java
@@ -0,0 +1,60 @@
+package bjc.dicelang.dice;
+
+/**
+ * A die whose rolls result from concatenating two other rolls together.
+ *
+ * @author Ben Culkin
+ */
+public class CompoundDie implements Die {
+	/* The dice that form this die */
+	private final Die left;
+	private final Die right;
+
+	/**
+	 * Create a new compound die.
+	 *
+	 * @param lft
+	 *                The left die
+	 * @param rght
+	 *                The right die
+	 */
+	public CompoundDie(final Die lft, final Die rght) {
+		left = lft;
+		right = rght;
+	}
+
+	@Override
+	public boolean canOptimize() {
+		return left.canOptimize() && right.canOptimize();
+	}
+
+	@Override
+	public long optimize() {
+		long leftOpt  = left.optimize();
+		long rightOpt = right.optimize();
+
+		return Long.parseLong(String.format("%d%d", leftOpt, rightOpt));
+	}
+
+	@Override
+	public long roll() {
+		long leftRoll  = left.optimize();
+		long rightRoll = right.optimize();
+
+		return Long.parseLong(String.format("%d%d", leftRoll, rightRoll));
+	}
+
+	@Override
+	public long rollSingle() {
+		/* Actually one dice built using two, can't be split. */
+		return roll();
+	}
+
+	@Override
+	public String toString() {
+		String leftString  = left.toString();
+		String rightString = right.toString();
+
+		return String.format("%sc%s", leftString, rightString);
+	}
+}