triggerEventDef = 
{
    TRIGGEREVENT_ENTERSCENE = 0,
    TRIGGEREVENT_LEAVESCENE = 1,
    TRIGGEREVENT_INITSCENE  = 2,
    TRIGGEREVENT_UPDATESCENE = 3,
    TRIGGEREVENT_TOUCHBEGAN  = 4,
    TRIGGEREVENT_TOUCHMOVED  = 5,
    TRIGGEREVENT_TOUCHENDED  = 6,
    TRIGGEREVENT_TOUCHCANCELLED = 7,
}