home *** CD-ROM | disk | FTP | other *** search
-
- ;*************************************************
- ; SNAKE PIC (C) 1994 Type One / TFL-TDV Prod.
- ; GFX by Fred
- ;*************************************************
-
- INCLUDE PDFIK.INC ; DataFile Manager
- INCLUDE VIDEO.INC ; Flamoot VGA SetUp
- INCLUDE PLAYINFO.INC ; Player structures
- INCLUDE KEYBOARD.INC ; Keyboard macros
-
- ;-----------------------------------------
- ; Déclaration modèle mémoire
- .386
- DGROUP GROUP _DATA,_BSS
- SNAKE_TEXT SEGMENT DWORD PUBLIC USE16 'CODE'
- ASSUME CS:SNAKE_TEXT,DS:DGROUP
- SNAKE_TEXT ENDS
- _DATA SEGMENT DWORD PUBLIC USE16 'DATA'
- _DATA ENDS
- _BSS SEGMENT DWORD PUBLIC USE16 'BSS'
- _BSS ENDS
- ;-----------------------------------------
-
- _DATA SEGMENT
-
-
- ;-- donnees pattern --
- EXTRN _Datafile : BYTE
- EXTRN _OfsinDta : DWORD
- Picname BYTE 'snake.raw',0
- Picparam PARAM_STRUC<2,_DATA,OFFSET _Datafile,OFFSET Picname,0,0,0,,,0>
-
-
- EXTRN _BlackPal: BYTE
- EXTRN _WhitePal: BYTE
-
- _DATA ENDS
-
- ;données non initialisées
- _BSS SEGMENT
-
- EXTRN _FrameCounter : WORD
- EXTRN _StartAdr : WORD
- EXTRN _WorkAdr : WORD
- EXTRN _NextAdr : WORD
- EXTRN _Triple : WORD
- EXTRN _SyncFlag : WORD
- EXTRN _TmpPal : BYTE
- EXTRN _FadeON : WORD
- ;!!!!!!!!!! synchro avec music !!!!!!!!!!!!
- EXTRN _MP : DWORD ; extern ModulePlayer * MB
- EXTRN _ReplayInfo : mpInformation
-
- ;---- param pour synchro avec zizik ----
- EVEN
- DebSong WORD ?
- FinSong WORD ?
-
-
-
- EVEN
- Picseg WORD ? ; seg for pattern
-
- FadeFlag WORD ? ; flag pour fading
- FadePtr1 WORD 2 DUP(?) ; ptr sur palette a fader
- FadePtr2 WORD 2 DUP(?)
- Delai WORD ?
- Termine WORD ? ; flag pour terminer !!!
-
-
- _BSS ENDS
-
- SNAKE_TEXT SEGMENT
- PUBLIC _StartSnake
- EXTRN _AveragePAL : FAR
-
-
- ; Point d'entrée de l'intro !!!!!
- ;---------------------------------
- ALIGN
- EVEN
- _StartSnake PROC FAR
-
- push bp ; bâtit le cadre de pile
- mov bp,sp
-
- pushad
- MPUSH ds,es,fs,gs
-
- STARTUP
- ;------- recuperer parametres sur le stack !!!! --------
-
- mov ax,WORD PTR ss:[bp+6] ; debut pos
- shl eax,14
- or ax,WORD PTR ss:[bp+8] ; debut row
- or ah,al
- shr eax,8
- mov DebSong,ax
- mov ax,WORD PTR ss:[bp+10] ; fin pos
- shl eax,14
- or ax,WORD PTR ss:[bp+12] ; fin row
- or ah,al
- shr eax,8
- mov FinSong,ax
- xor eax,eax
- ;-------------------------------------------------------
-
- push m320x200x256c ; set 320x200x256 col/chained 60hz
- call _SetVGA
- add sp,2
-
- STARTUP
- ;--------------------------------------
- call DoSnake ; !!!!! title part !!!!!
- ;--------------------------------------
-
- mov ax,0a000h ; clear screen
- mov es,ax
- xor eax,eax
- xor di,di
- mov cx,65536/4
- rep stosd
-
- MPOP ds,es,fs,gs
- popad
- nop
-
- leave ; restore stack
- ; mov sp,bp + pop bp
- retf
-
- _StartSnake ENDP
-
- ;==============================================================================
- ;============================ Snake part ======================================
- ;==============================================================================
-
- ALIGN
- EVEN
- DoSnake PROC NEAR
-
- ;------------------------------------------------------------------------------
- pushad
-
- mov eax,_OfsinDta ; OFFSET in Datafile
- mov Picparam.OfsInPdf,eax
- mov ax,_DATA ; prepare for PDFIK call
- mov es,ax
- mov bx,OFFSET Picparam
- pusha
- call PDFIK_ASM ; call function 2 (extract+alloc)
- popa
- mov ax,Picparam.BufSeg ; where is the file in mem ?
- mov Picseg,ax
-
- push ds
- push es
- mov ax,Picseg
- mov ds,ax ; 32 bytes for Alchemy Header
- mov si,32 ; palette offset
- mov es,ax
- mov di,32
-
- mov cx,768 ; 256*3 components
- @@: lodsb
- shr al,2 ; 8 to 6 bits conversion
- stosb
- dec cx
- jnz @B
-
- pop es
- pop ds
-
- ;---------------
-
- STARTUP
-
-
- call PutSnake ; transfert bitmap in vidmem and
- ; set pal to black !!!!
-
-
- ;---- wait right position/row in tune ----
-
- WaitPos:
- mov _ReplayInfo.numChannels,4 ; 4 voices
-
- les bx,DWORD PTR[_MP]
- push ds
- push OFFSET _ReplayInfo
-
- ; _MP->GetInformation(&ReplayInfo)
-
- call (ModulePlayer PTR es:[bx]).GetInformation
- add sp,4
-
- mov ax,_ReplayInfo.pos
- shl eax,14
- or ax,_ReplayInfo.row
- or ah,al
- shr eax,8
- cmp ax,WORD PTR[DebSong] ; is it time ????
- jb WaitPos
-
- xor eax,eax
- ;------------------------------------------
-
- mov Termine,0 ; pas encore terminer !!!
-
- mov _FadeON,0
- mov FadeFlag,0
- mov FadePtr1,OFFSET _BlackPal ; Black to pic for the beginning !!!
- mov ax,ds
- mov FadePtr1+2,ax
- mov FadePtr2,32
- mov ax,Picseg
- mov FadePtr2+2,ax
- mov ax,_FrameCounter
- mov Delai,ax
-
-
- mov bx,_StartAdr
- mov WORD PTR[bx],0 ; _StartAdr->base = 0
- mov WORD PTR[bx+2],0 ; _StartAdr->flag = false
- mov bx,_WorkAdr
- mov WORD PTR[bx],0 ; _WorkAdr->base
- mov WORD PTR[bx+2],0 ; _WorkAdr->flag = false
- mov _Triple,0 ; "faux" double buffering
- mov _SyncFlag,1
- VSYNC
-
-
- EVEN
- Main: ; -= VSYNC =-
-
- wait_for_VBL: ; wait for Sync Flag
- cmp _SyncFlag,1
- jne wait_for_VBL
- mov _SyncFlag,0
-
-
- cmp FadeFlag,255
- jb BNewFade2
- cmp Termine,1 ; Terminer si dernier fade fini
- je GoOut
-
- mov _FadeON,0 ; don't set _TmpPal anymore ...
- jmp @F
- BNewFade2:mov ax,FadeFlag ; average Black-MyPal
- push ax
- push ds
- push OFFSET _TmpPal
- mov ax,FadePtr1+2
- push ax
- mov ax,FadePtr1
- push ax
- mov ax,FadePtr2+2
- push ax
- mov ax,FadePtr2
- push ax
- call _AveragePAL
- add sp,7*2
- mov _FadeON,1 ; set new PAL during next VR !!!
- mov cx,_FrameCounter
- sub cx,Delai ; temps chargement
- mov Delai,0 ; plus delai ....
- test cx,cx
- jnz BFaddi
- inc cx
- BFaddi: add FadeFlag,4 ; inc fade ..
- dec cx
- jnz BFaddi
- @@:
-
- ;----------- test if we must finish ... ----------
- mov ax,_FrameCounter
- mov _FrameCounter,0 ; set counter to NULL
-
- mov _ReplayInfo.numChannels,4 ; 4 voices
-
- les bx,DWORD PTR[_MP]
- push ds
- push OFFSET _ReplayInfo
-
- ; _MP->GetInformation(&ReplayInfo)
-
- call (ModulePlayer PTR es:[bx]).GetInformation
- add sp,4
-
- mov ax,_ReplayInfo.pos
- shl eax,14
- or ax,_ReplayInfo.row
- or ah,al
- shr eax,8
-
- cmp ax,WORD PTR[FinSong] ; is it time ????
- jb @F ; to fade off ???
-
- mov Termine,1
-
- cmp FadePtr2,OFFSET _BlackPal
- je @F
- mov FadeFlag,0
- mov eax,DWORD PTR[FadePtr2]
- mov DWORD PTR[FadePtr1],eax ; fade to black !!!!
- mov ax,ds
- mov FadePtr2+2,ax
- mov FadePtr2,OFFSET _BlackPal
-
- @@: xor eax,eax
- ;--------------------------------------------------------------------
-
- SHOWTIME 32
-
- SHOWTIME 0
-
- mov bx,_WorkAdr
- mov WORD PTR[bx+2],1
-
-
- LOOP_UNTIL_KEY Main
-
- ;===============================================================
-
- GoOut:
-
- FLUSH_KEYBUF ; Flush keyboard buffer !!! ;-)
-
- mov _FadeON,0 ; to be sure ....
-
- ;----- EXIT -----
-
- STARTUP
- mov ax,Picseg ; segment to free
- mov es,ax
- mov ah,49h ; MFREE
- int 21h
-
- popad
- nop
- ret
-
- DoSnake ENDP
-
-
- PutSnake PROC NEAR ; put bitmap and set pal to black !!!
-
-
- MPUSH ax,cx,dx,si,di,ds,es
-
- mov dx,3c8h ; pal reg.
- xor al,al
- out dx,al
- inc dl
- mov cx,768
- @@: out dx,al ; black ....
- dec cx
- jnz @B
-
-
- mov ax,Picseg
- add ax,(768+32) SHR 4 ; segment of Snake pic "ConTrast"
- mov ds,ax
- mov ax,0a000h ; video mem
- mov es,ax
-
- xor si,si ; skip alchemy header ...
- xor di,di
-
- cld
- mov cx,320*200/4
- rep movsd ; copy to screen
-
-
-
- MPOP ax,cx,dx,si,di,ds,es
- ret
-
- PutSnake ENDP
-
-
- ;==============================================================================
-
- SNAKE_TEXT ENDS
-
- END
-
-