California , generally, requires all CA sourced income to be recognized --- you will need to file as a non-resident for California. They will work off of your federal income ( world income) and you have to allocate that certain income which is California sourced ( i.e. the payor/ entity is located within CA ). Most states recognize and give credit for incomes already taxed by otger states--- not for you since WA does not have persoanl income tax.
Hope this helps