mirror of
https://github.com/a2-4am/4sports.git
synced 2024-11-19 13:32:48 +00:00
114 lines
3.2 KiB
Plaintext
114 lines
3.2 KiB
Plaintext
;license:MIT
|
|
;(c) 2018-2021 by 4am & qkumba
|
|
;
|
|
; credits page
|
|
;
|
|
; Public functions
|
|
; - Help
|
|
; - Credits
|
|
;
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Help
|
|
; display per-game or global help page and wait
|
|
;
|
|
; in: none
|
|
; out: see above
|
|
;------------------------------------------------------------------------------
|
|
Help
|
|
jsr GetGameToLaunch
|
|
bcs @global
|
|
+ST16 @game
|
|
|
|
jsr LoadIndexedFile
|
|
@okvsPtr !word gSearchCache
|
|
!word kGameHelpIndexRecord
|
|
|
|
jsr okvs_find
|
|
!word @okvsPtr
|
|
@game !word $FDFD ; SMC
|
|
+ST16 @indexRecordPtr
|
|
|
|
jsr LoadIndexedFile
|
|
!word $800
|
|
@indexRecordPtr
|
|
!word $FDFD ; SMC
|
|
|
|
clc
|
|
bcc .clearAndDisplayHelp ; always branches
|
|
|
|
@global jsr LoadIndexedFile ; load help text into $800
|
|
!word $800
|
|
!word kHelpTextRecord
|
|
|
|
jsr LoadHelpOffscreen ; load fancy backdrop
|
|
ldx #7
|
|
bne .displayHelp ; always branches
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Credits
|
|
; display credits page and wait
|
|
;
|
|
; in: none
|
|
; out: C clear
|
|
; all other flags and registers clobbered
|
|
;------------------------------------------------------------------------------
|
|
Credits
|
|
jsr LoadIndexedFile ; load credits text into $800
|
|
!word $800
|
|
!word kCreditsRecord
|
|
.clearAndDisplayHelp
|
|
jsr ForceHGRMode
|
|
jsr ClearOffscreen
|
|
ldx #0 ; left margin (0 for credits, different for global help)
|
|
.displayHelp
|
|
lda OffscreenPage
|
|
ror ; draw on offscreen page
|
|
+LDADDR $800
|
|
+ST16 PTR
|
|
;DrawPage inlined here
|
|
;
|
|
; PTR contains address of array of length-prefixed strings
|
|
; length #$FF terminates
|
|
; X contains 0-indexed left margin (HTAB)
|
|
; carry bit clear -> draw on page 1
|
|
; carry bit set -> draw on page 2
|
|
; drawing starts at VTAB 0
|
|
; each line starts at column X which was passed in (0-indexed)
|
|
; clobbers $FF
|
|
; clobbers A/X/Y
|
|
; preserves C, other flags clobbered
|
|
stx $FF
|
|
ldx #0
|
|
stx VTAB
|
|
php ; save C, but Z=1 because of ldx #0
|
|
@drawLine
|
|
lda $FF
|
|
sta HTAB
|
|
jsr DrawString_PTR_is_already_set
|
|
bmi @donePage
|
|
clc
|
|
adc PTR
|
|
sta PTR
|
|
bcc +
|
|
inc PTR+1
|
|
+ plp ; restore C to whatever it was on entry
|
|
php
|
|
beq @drawLine ; always branches
|
|
@donePage
|
|
plp
|
|
;end inline
|
|
jsr ShowOtherPage ; show credits
|
|
jsr WaitForKeyFor30Seconds; wait
|
|
bit CLEARKBD ; don't care about key
|
|
cmp #$81 ; Ctrl-A = about
|
|
beq Credits
|
|
cmp #$90 ; Ctrl-P = launch joystick calibration program
|
|
bne +
|
|
jmp Joystick
|
|
+ cmp #$83 ; Ctrl-C = toggle cheat mode
|
|
bne +
|
|
jsr ToggleCheat
|
|
+ sec ; if called from search mode, tell caller to refresh
|
|
rts
|