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⌂ ∞ ▽ Elite on the BBC Micro and NES

Equipment: UpdateEquipment

[NES version, Bank 0]

       Name: UpdateEquipment                                         [Show more]
       Type: Subroutine
   Category: Equipment
    Summary: Highlight the newly chosen item of equipment, update the Cobra Mk
             III, redraw the screen and rejoin the main EQSHP routine

    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * EQSHP calls UpdateEquipment
             * MoveEquipmentDown calls UpdateEquipment




.UpdateEquipment

 JSR HighlightEquipment ; Highlight the item of equipment in XX13

 JSR DrawEquipment_b6   ; Draw the currently fitted equipment onto the Cobra Mk
                        ; III image

 JSR DrawScreenInNMI    ; Configure the NMI handler to draw the screen, so the
                        ; screen gets updated

 JSR WaitForPPUToFinish ; Wait until both bitplanes of the screen have been
                        ; sent to the PPU, so the screen is fully updated and
                        ; there is no more data waiting to be sent to the PPU

 JMP equi1              ; Rejoin the main EQSHP routine at equi1 to continue
                        ; checking for button presses