Added dice roller

1 files changed, 33 insertions, 0 deletions

diff --git a/BJC-Utils2/src/main/java/bjc/utils/dice/ScalarDiceExpression.java b/BJC-Utils2/src/main/java/bjc/utils/dice/ScalarDiceExpression.java
new file mode 100644
index 0000000..4b73dd5
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/dice/ScalarDiceExpression.java
@@ -0,0 +1,33 @@
+package bjc.utils.dice;
+
+public class ScalarDiceExpression implements DiceExpression {
+	private DiceExpressionType	det;
+	private DiceExpression		exp;
+
+	private int					scalar;
+
+	public ScalarDiceExpression(DiceExpression dex, int scalr,
+			DiceExpressionType dt) {
+		exp = dex;
+		scalar = scalr;
+		det = dt;
+	}
+
+	@Override
+	public int roll() {
+		switch (det) {
+			case ADD:
+				return exp.roll() + scalar;
+			case SUBTRACT:
+				return exp.roll() - scalar;
+			case MULTIPLY:
+				return exp.roll() * scalar;
+			case DIVIDE:
+				return Math.round(exp.roll() / scalar);
+			default:
+				throw new IllegalStateException(
+						"Got passed  a invalid ScalarExpressionType "
+								+ det);
+		}
+	}
+}