Add skin property image.frames and image.index.

Assets/Cryville/Crtr/PropOp.cs

@@ -60,6 +60,24 @@ namespace Cryville.Crtr {
 				_cb(GetOperand(0).AsString());
 			}
 		}
+		public class StringArray : PropOp {
+			readonly Action<string[]> _cb;
+			public StringArray(Action<string[]> cb) { _cb = cb; }
+			protected unsafe override void Execute() {
+				var op = GetOperand(0);
+				int arrtype; int len;
+				op.GetArraySuffix(out arrtype, out len);
+				if (arrtype != PdtInternalType.String) throw new InvalidCastException("Not an array of strings");
+				var result = new string[len];
+				int o = 0;
+				for (int i = 0; i < len; i++) {
+					string v = op.AsString(o);
+					o += v.Length * sizeof(char) + sizeof(int);
+					result[i] = v;
+				}
+				_cb(result);
+			}
+		}
 		public class TargetString : PropOp {
 			readonly Func<RTargetString> _cb;
 			public TargetString(Func<RTargetString> cb) { _cb = cb; }