Helper function to check key states in PAWN

keys.pwn

bool:AreKeysDown(keys, oldKeys, newKeys)
{
    return ((oldKeys & keys) != keys) && ((newKeys & keys) == keys);
}

bool:AreKeysUp(keys, oldKeys, newKeys)
{
    return ((oldKeys & keys) == keys) && ((newKeys & keys) != keys)
}

bool:AreKeysPressed(keys, newKeys)
{
    return (newKeys & keys) == keys;
}

bool:IsAnyKeyFromKeysDown(keys, oldKeys, newKeys)
{
    return !(oldKeys & keys) && (newKeys & keys);
}

bool:IsAnyKeyFromKeysUp(keys, oldKeys, newKeys)
{
    return (oldKeys & keys) && !(newKeys & keys);
}

bool:IsAnyKeyFromKeysPressed(keys, newKeys)
{
    return !!(newKeys & keys);
}