void main()
{

    int nArmed=GetLocalInt(OBJECT_SELF,"armed");
    if (nArmed==0)
    {
     return;
    }

    if (GetDamageDealtByType(DAMAGE_TYPE_FIRE) > 0)
    {
        ExecuteScript("gzcs_pkeg_ignite",OBJECT_SELF);
    } else
    if (d100()<21) // 20 % chance to blow it up
    {
        ExecuteScript("gz_pkeg_detonate",OBJECT_SELF);
    }

}