Cstrike: cs_get_user_driving - Add the associated constants from HLSDK

plugins/include/cstrike.inc

@@ -577,7 +577,8 @@ native cs_set_user_tked(index, tk = 1, subtract = 1);
  *
  * @return          0 if the client is not driving, 1 if driving a vehicle but
  *                  not moving, 2 to 4 if driving positive speeds, 5 if
- *                  driving at a negative speed (backing)
+ *                  driving at a negative speed (backing), see TRAIN_* constants
+ *                  in hlsdk_cons.inc
  * @error           If the client index is not within the range of 1 to
  *                  MaxClients, or the client is not connected, an error will be
  *                  thrown.

plugins/include/hlsdk_const.inc

@@ -613,6 +613,19 @@
  * @endsection
  */
 
+/**
+ * Train status values
+ */
+#define TRAIN_ACTIVE  0x80
+#define TRAIN_NEW     0xc0
+
+#define TRAIN_OFF     0x00
+#define TRAIN_NEUTRAL 0x01
+#define TRAIN_SLOW    0x02
+#define TRAIN_MEDIUM  0x03
+#define TRAIN_FAST    0x04
+#define TRAIN_BACK    0x05
+ 
 /**
  * Valve Mod Weapon Constants
  */