Rudimentary CLI for new die implementation

1 files changed, 40 insertions, 0 deletions

diff --git a/dice/src/example/java/bjc/dicelang/neodice/commands/PolyhedralDieCommand.java b/dice/src/example/java/bjc/dicelang/neodice/commands/PolyhedralDieCommand.java
new file mode 100644
index 0000000..02fc9cf
--- /dev/null
+++ b/dice/src/example/java/bjc/dicelang/neodice/commands/PolyhedralDieCommand.java
@@ -0,0 +1,40 @@
+package bjc.dicelang.neodice.commands;
+
+import static bjc.dicelang.neodice.statements.StatementValue.Type.*;
+
+import java.util.*;
+
+import bjc.dicelang.neodice.*;
+import bjc.dicelang.neodice.statements.*;
+
+public class PolyhedralDieCommand implements Command {
+	@Override
+	public StatementValue execute(Iterator<String> words, DieBoxCLI state) {
+		if (!words.hasNext()) {
+			throw new DieBoxException("Number of sides to polyhedral-die must be provided");
+		} else {
+			StatementValue sideValue = state.runStatement(words);
+			
+			if (sideValue.type == INTEGER) {
+				int numSides = ((IntegerStatementValue)sideValue).value;
+				
+				if (numSides < 0) throw new DieBoxException("Number of sides to polyhedral-die was not valid (must be less than 0, was %d)", numSides);
+				
+				return new DieStatementValue(DieFactory.polyhedral(numSides));
+			} else {
+				throw new DieBoxException("Number of sides to polyhedral-die wasn't an integer (was %s, of type %s)",
+						sideValue, sideValue.type);
+			}
+		}
+	}
+	
+	@Override
+	public String shortHelp() {
+		return "create a single polyhedral die";
+	}
+	
+	@Override
+	public String longHelp() {
+		return "Creates a single polyhedral die with a fixed number of sides";
+	}
+}
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