mirror of
https://github.com/pkali/scorch_src.git
synced 2026-05-20 22:34:21 +02:00
Pecusx
271 lines
5.3 KiB
NASM
271 lines
5.3 KiB
NASM
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icl '../../Atari/lib/ATARISYS.ASM'
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icl '../../Atari/lib/MACRO.ASM'
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icl '../../Atari/lib/cartloader_vectors.inc'
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.zpvar dliCounter .byte = $80
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.zpvar TetryxColor .byte
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.zpvar TetryxColorS .byte
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; ------- constans --------
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; start addr of loader
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; cart banks numbers
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LoaderBank = 0 ; offset $00000 (and $FE000)
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ScorchBank = 1 ; offset $02000
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MenuENBank = 12 ; offset $18000
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MenuPLBank = 17 ; offset $22000
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TetryxBank = 22 ; offset $2c000
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org $2000
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WeaponFont
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ins '../weapons_AW6_mod.fnt' ; 'artwork/weapons.fnt'
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LogoFont
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ins 'Scorch_logo_mod_AW.fnt'
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main
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lda #0
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sta dmactls
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jsr WaitOneFrame
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lda #0
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sta TetryxColor
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sta TetryxColorS
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lda RANDOM
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and #%11110000 ; 1:16
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bne TnotVisible
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lda colors+2 ; visible
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sta TetryxColor
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TnotVisible
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lda #0
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ldx #3
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@ sta COLOR0-1,x
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dex
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bpl @-
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mva #>LogoFont chbas
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mwa #MenuDL dlptrs
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VMAIN VBLinterrupt,7 ;jsr SetVBL
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SetDLI DLIinterrupt
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lda #@dmactl(narrow|dma) ; narrow screen width, DL on, P/M off
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sta dmactls
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jsr WaitOneFrame
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jsr FadeIn
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jsr WaitOneFrame
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WaitForKey
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jsr GetKey
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cmp #@kbcode._space
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bne @+
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mva #ScorchBank X_BANK
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bne GoLoader
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@ cmp #@kbcode._E
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bne @+
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mva #MenuENBank X_BANK
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bne GoLoader
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@ cmp #@kbcode._P
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bne @+
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mva #MenuPLBank X_BANK
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bne GoLoader
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@ cmp #@kbcode._T
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bne WaitForKey
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mva #TetryxBank X_BANK
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bne GoLoader
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GoLoader
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jsr WaitOneFrame
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jsr FadeOut
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VMAIN XITVBV,7 ; jsr SetVBL (off user proc)
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LDA #%01000000 ; DLI off
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STA NMIEN
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lda #0 ; DL off, P/M off
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sta dmactls
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jsr WaitOneFrame
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mwa #$a000 X_SRC
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mva #$10 X_CLRSTART
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;cli
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;jmp main
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jmp X_LOADER_START
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stop
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jmp stop
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;--------------------------------------------------
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.proc FadeIn
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ldy #15
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FirstLoop
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ldx #3
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@ lda COLOR0-1,x
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cmp colors,x
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beq ColorOK
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inc COLOR0-1,x
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ColorOK
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dex
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bpl @-
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lda TetryxColorS
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cmp TetryxColor
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beq TcolorOK
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inc TetryxColorS
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TcolorOK
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jsr WaitOneFrame
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dey
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bpl FirstLoop
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rts
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.endp
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;--------------------------------------------------
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.proc FadeOut
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ldy #15
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FirstLoop
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ldx #3
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@ lda COLOR0-1,x
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beq ColorOK
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dec COLOR0-1,x
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ColorOK
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dex
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bpl @-
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lda TetryxColorS
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beq TcolorOK
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dec TetryxColorS
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TcolorOK
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jsr WaitOneFrame
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dey
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bpl FirstLoop
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rts
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.endp
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;--------------------------------------------------
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.proc DLIinterrupt
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pha
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lda dliCounter
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bne SecondDLI
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FirstDLI
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mva #>WeaponFont chbase
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lda #0
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;sta WSYNC
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sta COLPF2
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beq EndOfDLI
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SecondDLI
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lda TetryxColorS
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sta COLPF1
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EndOfDLI
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inc dliCounter
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pla
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DLIinterruptNone
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rti
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.endp
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;--------------------------------------------------
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.proc VBLinterrupt
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mva #0 dliCounter
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jmp XITVBV
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.endp
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;--------------------------------------------------
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.macro SetDLI
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; SetDLI #WORD
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; Initialises Display List Interrupts
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LDY # <:1
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LDX # >:1
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jsr _SetDLIproc
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.endm
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.proc _SetDLIproc
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LDA #%11000000
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STY VDSLST
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STX VDSLST+1
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STA NMIEN
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rts
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.endp
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;--------------------------------------------------
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.proc WaitOneFrame
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;--------------------------------------------------
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waitRTC ; or wait ?
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rts
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.endp
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;--------------------------------------------------
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; DL for menu
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MenuDL
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.byte $70,$70,$70
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.byte $44
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.word picData
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:3 .byte $04
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.byte $20+$80
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.byte $42
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.word MenuTitle2
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.byte $70,$70
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.byte $47
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.word MenuTitle
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.byte $30,$70
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.byte $42
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.word MenuOptions
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.byte $10,$02
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.byte $10,$02
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.byte $10+$80,$02
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.byte $41
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.word MenuDL
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; Picture data (narrow screen)
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picData
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ins 'Scorch_logo_mod_AW.scr',+32, 32*4 ; load 4 lines without the first one
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; Color data
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colors
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.BYTE 0,14,10,6
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MenuTitle2
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dta d" Unknown Father of All Games "
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MenuTitle
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dta d" SELECT OPTION "
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MenuOptions
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dta d" E - English Manual "
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dta d" P - Polska instrukcja "
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dta d" SPACE - Start Scorch Game "
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dta d" T - Start Tetryx Game "
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;--------------------------------------------------
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.proc GetKey
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; waits for pressing a key and returns pressed value in A
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; result: A=keycode
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;--------------------------------------------------
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jsr WaitForKeyRelease
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getKeyAfterWait
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lda SKSTAT
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cmp #$ff
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beq checkJoyGetKey ; key not pressed, check Joy
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lda kbcode
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cmp #@kbcode._none
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beq checkJoyGetKey
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and #$3f ;CTRL and SHIFT ellimination
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bne getkeyend ; allways
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checkJoyGetKey
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;fire
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lda STRIG0
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beq JoyButton
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checkStarttKey
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lda CONSOL
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and #%00000001 ; Start
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beq StartPressed
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bne getKeyAfterWait
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StartPressed
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JoyButton
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lda #@kbcode._space ; Start key
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getkeyend
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ldy #0
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sty ATRACT ; reset atract mode
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rts
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.endp
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;--------------------------------------------------
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.proc WaitForKeyRelease
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;--------------------------------------------------
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StillWait
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lda STRIG0
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beq StillWait
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lda SKSTAT
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cmp #$ff
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bne StillWait
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lda CONSOL
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and #%00000001 ; Start only
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cmp #%00000001
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bne StillWait
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KeyReleased
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rts
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.endp
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run main
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