mirror of
https://github.com/a2-4am/pitch-dark.git
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69 lines
2.0 KiB
Plaintext
69 lines
2.0 KiB
Plaintext
;license:MIT
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;(c) 2018 by 4am
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;
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; User interface - functions to load and display double hi-res artwork
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;
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; Public functions
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; - DisplayArtwork
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;
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kArtworkRootDirectory ; length-prefixed pathname of DHGR graphic files
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!byte 8
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!raw "ARTWORK/"
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!zone {
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;------------------------------------------------------------------------------
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; DisplayArtwork
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; load and display double hi-res artwork, then wait for key or mouse click
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;
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; in: WeeGUI initialized
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; out: all registers and flags clobbered
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;------------------------------------------------------------------------------
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DisplayArtwork
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lda #0 ; set Z flag always
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!cpu 65816
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rep #2 ; clear Z flag on 65816 only
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!cpu 65c02
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beq + ; skip GS-specific code on non-GS machines (required, will crash on //c, grr)
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lda $C029
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and #$1F
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sta $C029 ; set GS NEWVIDEO mode to turn off linearize
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+
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jsr ResetPath
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+LDADDR kArtworkRootDirectory
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jsr AddToPath
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jsr okvs_get
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!word gGlobalPrefsStore
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!word kLastPlayed
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jsr AddToPath ; gPathname = 'ARTWORK/<game shortname>'
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+ jsr LoadDHRFile ; load artwork from file
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!word gPathname
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!word kProDOSFileBuffer
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bcs .error
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sta $C000 ; display double hi-res page 1
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sta $C00D
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sta $C05E
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sta $C001
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sta $C057
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sta $C052
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sta $C054
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sta $C050
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bit $C010 ; clear keyboard strobe
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ldx #WGClearPendingClick ; clear WeeGUI mouse strobe
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jsr WeeGUI
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.runLoop
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ldx #WGPendingClick
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jsr WeeGUI
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cpx #$FF
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bne + ; X != #$FF -> user clicked mouse
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lda $C000
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bpl .runLoop
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+ sta $C051 ; back to text
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rts
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.error
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jmp SoftBell
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}
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