Added dice roller

1 files changed, 34 insertions, 0 deletions

diff --git a/BJC-Utils2/src/main/java/bjc/utils/dice/CompoundDiceExpression.java b/BJC-Utils2/src/main/java/bjc/utils/dice/CompoundDiceExpression.java
new file mode 100644
index 0000000..c4ebbe5
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/dice/CompoundDiceExpression.java
@@ -0,0 +1,34 @@
+package bjc.utils.dice;
+
+public class CompoundDiceExpression implements DiceExpression {
+	private DiceExpressionType	det;
+	private DiceExpression		left;
+
+	private DiceExpression		right;
+
+	public CompoundDiceExpression(DiceExpression right,
+			DiceExpression left, DiceExpressionType det) {
+		this.right = right;
+		this.left = left;
+		this.det = det;
+	}
+
+	@Override
+	public int roll() {
+		switch (det) {
+			case ADD:
+				return right.roll() + left.roll();
+			case SUBTRACT:
+				return right.roll() - left.roll();
+			case MULTIPLY:
+				return right.roll() * left.roll();
+			case DIVIDE:
+				return Math.round(right.roll() / left.roll());
+			default:
+				throw new IllegalStateException(
+						"Got passed  a invalid ScalarExpressionType "
+								+ det);
+
+		}
+	}
+}