2019-09-10 04:04:16 +00:00
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;License:MIT
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2019-06-26 02:44:39 +00:00
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;(c) 2018-9 by 4am
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;
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; common UI functions
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;
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; Public functions
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2019-07-04 02:27:46 +00:00
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; - WaitForKeyFor30Seconds
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2019-07-03 22:31:50 +00:00
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; - GetOffscreenAddress
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2019-07-04 02:27:46 +00:00
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; - LoadTitleOffscreen
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; - LoadCoverOffscreen
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2019-07-03 22:31:50 +00:00
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; - DrawSearchBarOffscreen
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; - ShowOtherPage
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; - ToggleOffscreenPage
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2019-07-04 02:27:46 +00:00
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; - CoverFade
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2019-06-26 02:44:39 +00:00
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; - SoftBell
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; - Home
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; - BlankHGR
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; - BlankDHGR
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2019-09-10 04:04:16 +00:00
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; - ClearOffscreen
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; - ExecuteTransitionAndWait
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2019-09-06 19:21:38 +00:00
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; - IsSearchKey
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2019-07-03 22:31:50 +00:00
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; Public variables
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; - OffscreenPage
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; - UILine1
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; - UILine2
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; - VisibleGameCount (set during init)
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2019-06-26 02:44:39 +00:00
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;
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!zone {
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2019-07-04 02:27:46 +00:00
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2019-07-03 22:31:50 +00:00
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OffscreenPage
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!byte 1 ; 0 = currently showing HGR page 2
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; (so offscreen is page 1 @ $2000)
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; 1 = currently showing HGR page 1
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; (so offscreen is page 2 @ $4000)
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UILine1
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!byte 0,0,0,0,0,0,0,0,0,0
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!byte 0,0,0,0,0,0,0,0,0,0
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!byte 0,0,0,0,0,0,0,0,0,0
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!byte 0,0,0,0,0,0,0,0,0,0
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UILine2
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2019-07-08 18:10:11 +00:00
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!byte 0,0,0,0,0,0,0,0,0,0
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!byte 0,0,0,0,0,0,0,0,0,0
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!byte 0,0,0,0,0,0,0,0,0,0
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!byte 0
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UI_ToPlay
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!byte 0,0,0,0,0,0,0,0,0
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Instructions
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!text "[Type to search, "
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!byte $0B
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!text " to browse] "
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2019-07-03 22:31:50 +00:00
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VisibleGameCount
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2019-07-08 18:10:11 +00:00
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!text "000 games"
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ReturnToPlay
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!byte $0D
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!text " to play"
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2019-07-03 22:31:50 +00:00
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2019-09-10 04:19:07 +00:00
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;------------------------------------------------------------------------------
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; GetOffscreenAddress
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; get high byte of HGR page that is currently not showing
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;
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2019-07-03 22:31:50 +00:00
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; in: none
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; out: A = high byte of offscreen HGR page (#$20 or #$40)
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; preserves X/Y
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2019-09-10 04:19:07 +00:00
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;------------------------------------------------------------------------------
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GetOffscreenAddress
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2019-07-03 22:31:50 +00:00
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lda OffscreenPage
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beq +
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lda #$40
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rts
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+ lda #$20
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rts
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2019-09-10 04:19:07 +00:00
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;------------------------------------------------------------------------------
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; LoadTitleOffscreen
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; load title screen in the HGR page that is currently not showing
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;
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; in: none
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; out: all flags and registers clobbered
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;------------------------------------------------------------------------------
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2019-07-04 02:27:46 +00:00
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LoadTitleOffscreen
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+LDADDR .TitleFile
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bne + ; Always branches, because Y is loaded
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; last with the high byte of the address,
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; which is never 0. I miss my 65c02.
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2019-09-10 04:19:07 +00:00
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;------------------------------------------------------------------------------
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; LoadCoverOffscreen
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; load cover screen in the HGR page that is currently not showing
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;
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; in: none
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; out: all flags and registers clobbered
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;------------------------------------------------------------------------------
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2019-07-04 02:27:46 +00:00
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LoadCoverOffscreen
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; clobbers all
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+LDADDR .CoverFile
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+
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2019-09-10 02:38:17 +00:00
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+STAY @fname
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2019-07-04 02:27:46 +00:00
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jsr GetOffscreenAddress
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sta +
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2019-09-10 02:38:17 +00:00
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jsr LoadFile
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!word kRootDirectory
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@fname !word $FDFD ; SMC
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2019-07-04 02:27:46 +00:00
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!byte $00
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+ !byte $FD ; SMC
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rts
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.TitleFile
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!byte 5
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!text "TITLE"
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.CoverFile
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!byte 5
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!text "COVER"
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2019-09-10 04:19:07 +00:00
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;------------------------------------------------------------------------------
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; CoverFade
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; load cover screen and animate per-character fade
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;
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; in: none
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; out: all flags and registers clobbered
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;------------------------------------------------------------------------------
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2019-07-04 02:27:46 +00:00
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CoverFade
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jsr LoadCoverOffscreen
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jsr ShowOtherPage
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lda OffscreenPage
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bne +
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jsr LoadCoverOffscreen
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jsr ShowOtherPage
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+
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2019-09-10 02:38:17 +00:00
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jsr LoadFile ; load transition effect code at $6000
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!word kFXDirectory
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!word @CoverFadeFile
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!word $6000
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2019-07-04 02:27:46 +00:00
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jmp $6000 ; exit via loaded code
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@CoverFadeFile
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!byte 9
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!text "COVERFADE"
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2019-09-10 04:19:07 +00:00
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;------------------------------------------------------------------------------
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; DrawSearchBarOffscreen
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; draw 2-line search UI on the HGR page that is not currently showing
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;
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; in: none
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; out: all flags and registers clobbered
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;------------------------------------------------------------------------------
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2019-07-03 22:31:50 +00:00
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DrawSearchBarOffscreen
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LDA #22 ; draw visible search bar
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sta VTAB
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lda OffscreenPage
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ror ; draw on offscreen page
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+LDADDR UILine1
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jsr Draw40Chars
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lda OffscreenPage
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ror ; draw on offscreen page
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+LDADDR UILine2
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jmp Draw40Chars
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2019-09-10 04:04:16 +00:00
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;------------------------------------------------------------------------------
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; ClearOffscreen
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; clear $2000..$3FFF or $4000..$5FFF, depending on which HGR page is not
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; visible right now
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; does not change HGR mode
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;
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; in: none
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; out: $2000..$3FFF or $4000..$5FFF cleared
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; A = 0
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; X = 0
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; Y = 0
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; Z = 1
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;------------------------------------------------------------------------------
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ClearOffscreen
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jsr GetOffscreenAddress
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+HIDE_NEXT_2_BYTES
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.ClearHGR1
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lda #$20
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sta @a+2
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ldx #$20
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lda #$80
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ldy #0
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@a sta $2000,y
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iny
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bne @a
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inc @a+2
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dex
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bne @a
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rts
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2019-09-10 04:19:07 +00:00
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;------------------------------------------------------------------------------
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; ShowOtherPage
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; switch to the HGR page that is not currently showing
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;
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2019-07-03 22:31:50 +00:00
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; in: none
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; out: A = new value of OffscreenPage
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; preserves X/Y
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2019-09-10 04:19:07 +00:00
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;------------------------------------------------------------------------------
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ShowOtherPage
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2019-07-03 22:31:50 +00:00
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jsr ToggleOffscreenPage
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bne +
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bit PAGE2 ; show page 2
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rts
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+ bit PAGE1 ; show page 1
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rts
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2019-09-10 04:19:07 +00:00
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;------------------------------------------------------------------------------
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; ToggleOffscreenPage
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; switch the internal variable that tracks which HGR page is showing
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; (does not affect screen)
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;
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2019-07-03 22:31:50 +00:00
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; in: none
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; out: A = new value of OffscreenPage
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; preserves X/Y
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2019-09-10 04:19:07 +00:00
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;------------------------------------------------------------------------------
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ToggleOffscreenPage
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2019-07-03 22:31:50 +00:00
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lda OffscreenPage
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eor #$01
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sta OffscreenPage
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rts
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2019-06-26 02:44:39 +00:00
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;------------------------------------------------------------------------------
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; SoftBell
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; yell at the user, but, like, gently
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;
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; in: none
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2019-09-07 18:15:53 +00:00
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; out: C clear
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; Y preserved
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; A=0
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; X=0
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; all flags preserved
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2019-06-26 02:44:39 +00:00
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;------------------------------------------------------------------------------
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SoftBell
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ldx #32
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- lda #2
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jsr @wait
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2019-06-27 14:55:07 +00:00
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bit SPEAKER
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2019-06-26 02:44:39 +00:00
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lda #33
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jsr @wait
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2019-06-27 14:55:07 +00:00
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bit SPEAKER
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2019-06-26 02:44:39 +00:00
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dex
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bne -
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2019-09-07 18:15:53 +00:00
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clc
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2019-06-26 02:44:39 +00:00
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rts
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@wait ; identical to $FCA8 ROM routine, but ROM is switched out when we need it
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sec
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-- pha
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- sbc #1
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bne -
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pla
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sbc #1
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bne --
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rts
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;------------------------------------------------------------------------------
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; Home
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; clear and display text screen (HARDER THAN IT SOUNDS)
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;
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; in: none
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; out: $0106..$011F clobbered
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;------------------------------------------------------------------------------
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Home
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2019-06-27 13:51:17 +00:00
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lda MachineStatus
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2019-06-26 02:44:39 +00:00
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and #SUPPORTS_SHR
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beq @noSHR
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2019-06-27 14:55:07 +00:00
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lda NEWVIDEO
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2019-06-30 17:59:06 +00:00
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and #$3F
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sta NEWVIDEO ; get out of SHR mode and linear mode
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2019-06-28 03:42:01 +00:00
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lda #$F0
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sta TBCOLOR ; white text on black background
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lda #$00
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sta CLOCKCTL ; black border
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2019-06-28 03:50:25 +00:00
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sta CLOCKCTL ; set twice for VidHD
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2019-06-26 02:44:39 +00:00
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@noSHR
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ldx #(@end-@start-1)
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- lda @start,x
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sta $106,x
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dex
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bpl -
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jmp $106
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@start
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; this will be run from main memory
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+READ_ROM_NO_WRITE
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2019-06-27 14:55:07 +00:00
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sta CLR80VID ; get out of DHGR mode
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sta DHIRESOFF ; get out of DHGR mode
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jsr ROM_TEXT ; TEXT
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jsr ROM_HOME ; HOME
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2019-06-26 02:44:39 +00:00
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+READ_RAM1_WRITE_RAM1
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rts
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@end
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;------------------------------------------------------------------------------
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; BlankHGR
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; clear and show HGR page 1 without flickering
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;
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; in: none
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; out: text page clobbered (but screen holes preserved)
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; $2000..$3FFF cleared
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;------------------------------------------------------------------------------
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BlankHGR
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jsr Home
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jsr .ClearHGR1 ; clear hi-res screen 1
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2019-06-27 15:37:23 +00:00
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bit PAGE1 ; show hi-res screen 1 (now blank)
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2019-09-10 04:04:16 +00:00
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jmp HGRMode
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2019-06-26 02:44:39 +00:00
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;------------------------------------------------------------------------------
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; BlankDHGR
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; clear and show DHGR page 1 without flickering
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;
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; in: none
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; out: text page clobbered (but screen holes preserved)
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; $2000..$3FFF/main and /aux cleared
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;------------------------------------------------------------------------------
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BlankDHGR
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jsr Home
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jsr .ClearHGR1 ; clear hi-res screen 1
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2019-06-27 14:55:07 +00:00
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sta WRITEAUXMEM
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2019-06-26 02:44:39 +00:00
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jsr .ClearHGR1 ; clear hi-res screen 1 in auxmem
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2019-06-27 14:55:07 +00:00
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sta WRITEMAINMEM
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sta SET80VID
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sta DHIRESON
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2019-09-10 04:04:16 +00:00
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bit PAGE1
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jmp HGRMode
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;------------------------------------------------------------------------------
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; HGRMode
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; twiddles softswitches to set HGR mode (does not set page 1 or 2)
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;
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; in: none
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; out: all registers preserved
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;------------------------------------------------------------------------------
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HGRMode
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bit $C057
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bit $C052
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bit $C050
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2019-06-26 02:44:39 +00:00
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rts
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2019-09-10 04:04:16 +00:00
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;------------------------------------------------------------------------------
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; ExecuteTransitionAndWait
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; call transition effect code (address passed in) and wait a period of time
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; or until the user presses a key
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;
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; in: A/Y = address of transition effect code
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; out: all flags and registers clobbered
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;------------------------------------------------------------------------------
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2019-06-26 02:44:39 +00:00
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ExecuteTransitionAndWait
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+STAY @j+1
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@j jsr $FDFD ; SMC call transition effect code
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ldx #$20 ; picture is showing so now we wait
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- lda #0
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jsr WaitForKeyWithTimeout
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bmi +
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dex
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bpl -
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2019-09-10 03:04:17 +00:00
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+ lda KBD
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cmp #$95
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bne +
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bit CLEARKBD
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2019-06-26 02:44:39 +00:00
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+ rts
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2019-09-06 19:21:38 +00:00
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;------------------------------------------------------------------------------
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; IsSearchKey
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|
; test whether accumulator contains a key that might trigger a new textrank
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; search
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;
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; in: A = key
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; out: A &= 0x7F
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; Y preserved
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; X clobbered
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; Z = 1 if this is a search key
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; Z = 0 if this is not a search key
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|
;------------------------------------------------------------------------------
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IsSearchKey
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and #$7F ; strip high bit for search characters
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cmp #$30 ; control keys and punctuation ignored
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bcc @badkey
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cmp #$3A ; numbers are good input
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bcc @goodkey
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cmp #$41 ; more punctuation (also ignored)
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bcc @badkey
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cmp #$5B ; uppercase letters are good input
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bcs +
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ora #$20 ; convert uppercase letters to lowercase
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bne @goodkey ; always branches
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+ cmp #$61 ; more punctuation (also ignored)
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bcc @badkey
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cmp #$7B ; lowercase letters are good input
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|
bcc @goodkey
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|
@badkey
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ldx #1
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rts
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@goodkey
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|
ldx #0
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|
rts
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|
2019-09-10 04:19:07 +00:00
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|
|
; /!\ keep this last in the file to ensure it doesn't cross a page boundary /!\
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|
|
;------------------------------------------------------------------------------
|
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|
|
; WaitForKeyFor30Seconds
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|
|
; does what it says on the tin
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|
;
|
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|
|
; in: none
|
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|
; out: if user presses a key before the timer runs out, exits with A = key
|
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|
|
; otherwise exits via MegaAttractMode
|
|
|
|
; X/Y preserved
|
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|
|
;------------------------------------------------------------------------------
|
|
|
|
WaitForKeyFor30Seconds
|
|
|
|
lda #$16 ; initialize timeout counters
|
|
|
|
sta Timeout
|
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|
sta Timeout+1
|
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|
sta Timeout+2
|
|
|
|
@loop
|
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|
|
lda KBD
|
|
|
|
bmi @gotKey
|
|
|
|
|
|
|
|
inc RNDSEED+1 ; these are only ever incremented, never
|
|
|
|
bne + ; reset (may be used as a pseudorandom
|
|
|
|
inc RNDSEED ; seed)
|
|
|
|
+
|
|
|
|
dec Timeout ; these are a 3-byte timeout counter
|
|
|
|
bne @loop ; that counts down from a number set
|
|
|
|
dec Timeout+1 ; in .ResetInputTimeout and reset
|
|
|
|
bne @loop ; on every keypress (whether or not
|
|
|
|
dec Timeout+2 ; the key leads to an action)
|
|
|
|
bne @loop
|
|
|
|
jsr CoverFade ; no input for ~30 seconds, switch to
|
|
|
|
jmp MegaAttractMode ; mega-attract mode
|
|
|
|
@gotKey rts
|
|
|
|
|
2019-06-26 02:44:39 +00:00
|
|
|
}
|