-
; -WonderWorm--v0.9-
-; by Matthew Shepcar
-; 30th December 1998
+; by Matthew Shepcar 30.XII.98
+; modified by Jonah Cohen 19.XI .99
+; and Shiar 01.XII.99
+
+;to-do:
+; * picks not correctly removed
+; * linkplay
+; * hot pursuit + ctf
+; * ending (+stats after multiplayer)
+
+#include "TI86.inc"
-#include asm86.h
-#include ti86asm.inc
-#include ti86abs.inc
.org _asm_exec_ram
-
+
+_divHLby10 = $4044
+_getcsc = _getky
+_clrWindow = $4a86
+_runIndicOff = _runindicoff
+_flushAllMenus = _flushallmenus
+_SHRACC = _shracc
+_SHLACC = $438B
+
nop
jp Start
.dw 0,WormMsg
-Start:
- call _runindicoff
+Start:
+; ld (SpSave),sp
+ call _runIndicOff
+ call _flushAllMenus
call _clrLCD
- call BuildTrigTables
+ ld a,r
+ ld (Seed),a
+ xor a
+ ld (_asapvar+1),a
- ld hl,0FC00h
- ld de,GreyBuf
- ld bc,400h
- ldir
+;-----------------------------
+;----- build trig tables -----
+;-----------------------------
- ld hl,IHandler
- ld bc,IHandlerEnd-IHandler
- ld de,0BCBCh
- ldir
- ld hl,0BD00h
- ld (hl),d
- ld de,0BD01h
- ld a,d
- ld bc,256
+ ld hl,TrigPrecalc
+ ld de,SinCosTable
+ push de ; >> 1
+ ld bc,65
ldir
- ld i,a
- im 2
+ dec hl
+ ld b,63
+MirrorSineWave:
+ dec hl
+ ld a,(hl)
+ ld (de),a
+ inc de
+ djnz MirrorSineWave
+ pop hl ; << 0k
+ ld b,128+64
+NegativeSineWave:
+ xor a
+ sub (hl)
+ ld (de),a
+ inc hl
+ inc de
+ djnz NegativeSineWave
- ld a,r
- ld (Seed),a
+;-----------------------------
+;---------- menu -------------
+;-----------------------------
- ld hl,0
- ld (Score),hl
- ld a,1
- ld (Level),a
- ld a,3
- ld (Lives),a
- ld hl,Levels
+DisplayMenu:
+ call _clrLCD
+ ld hl,txtWelcome
+ call _puts
+ ld hl,txtMenu
+ ld de,$0203
+ ld b,4
+DispMenuLoop:
+ inc de
+ ld (_curRow),de
+ call _puts
+ djnz DispMenuLoop
+
+ ld hl,$0805
+ ld (_curRow),hl
+ ld hl,txtGame
+ call _puts
+
+ xor a
+menudraw:
+ and 3 ;-1>>3; 4>>0
+ push af
+
+ ld h,0
+ add a,4
+ ld l,a
+ ld (_curRow),hl
+ ld a,5 ;arrow
+ call _putc
+
+ ld h,0
+ ld a,1
+Previous =$-1
+ add a,4
+ ld l,a
+ ld (_curRow),hl
+ ld a,' '
+ call _putc
+
+ pop af
+ push af
+ ld (Previous),a
+WKCP:
+ halt \ halt
+ call GET_KEY
+ cp K_EXIT
+ jp z,Exit
+ cp K_ENTER
+ jr z,select
+ cp K_SECOND
+ jr z,select
+ cp K_UP
+ jr nz,notup
+ pop af
+ dec a
+ jr menudraw
+notup:
+ cp K_DOWN
+ jr nz,WKCP
+ pop af
+ inc a
+ jr menudraw
+
+select:
+ pop af
+ ld b,a
+ or a ;1st
+ jr z,ThePartyIsOn
+ dec a ;2nd
+ jr z,Variation
+ dec a ;3rd
+ jp Exit
+
+Variation:
+ ld hl,$0805
+ ld (_curRow),hl
+ ld a,0
+Gametype =$-1
+ ld hl,txtGame2
+NEXTtxtGame =$-2
+ inc a
+ and 3
+ jr nz,okilydokily
+ ld hl,txtGame
+okilydokily:
+ ld (Gametype),a
+ call _puts
+ ld (NEXTtxtGame),hl
+ ld a,b
+ jr menudraw
+
+singleplayer:
+ inc a
+ ld (nrworms),a
+ ld de,LevelsS
+ jr GameOver
+
+ThePartyIsOn:
+ ld a,(Gametype)
+ or a
+ jr z,singleplayer
+ ld a,2
+ ld (nrworms),a
+ ld de,LevelsDM
+
+;-----------------------------
+;--------- game over ---------
+;-----------------------------
+
+GameOver:
+ push de
+ call _clrLCD
+ pop de
+ ld a,1
+ ld (Level),a
+ ld hl,0
+ ld (worm1+score),hl
+ ld (worm2+score),hl
+ ld a,3
+ ld (worm1+lives),a
+ ld (worm2+lives),a
StartLevel:
- ld a,(hl)
- ld (Left),a
- inc hl
- ld a,(hl)
- ld (Speed),a
- inc hl
- ld a,25
+ ld a,(de)
+ ld (Left),a
+ inc de
+ ld a,(de)
+ ld (Speed),a
+ inc de
+ ld a,15
+ ld (worm1+grow),a
+ ld (worm2+grow),a
NextLife:
- ld (GrowAmt),a
- push hl
- ld d,(hl)
+ push de ; >> levelp old
+ ld b,2
+ ld hl,worm1
+
+worminit:
+ push bc ; >> 1
+ ld a,(de)
+ ld (hl),a ;d
+ inc de
inc hl
- ld e,(hl)
+ ld a,SinCosTable/256
+ ld (hl),a
inc hl
- ld a,(hl)
+
+ ld a,(de)
+ ld (hl),a ;y
+ inc de
inc hl
- ld (Heading),a
- push de
- ld a,(hl)
+ ld a,(de)
+ ld (hl),a ;x
+ inc de
+ inc hl
+
+ xor a
+ ld (hl),a ;y2
inc hl
+ ld (hl),a ;x2
+
+ ld bc,20-5
+ add hl,bc
+ pop bc ; << 0k
+ djnz worminit
+
+ ld hl,Worm1
+ ld (worm1+head),hl
+ ld (worm1+tail),hl
+ ld hl,Worm2
+ ld (worm2+head),hl
+ ld (worm2+tail),hl
+
+;-------- draw level ---------
+
+ ld a,(de)
+ inc de
+ sub 128
+ ld (FieldWidth),a
+ ld a,(de)
+ inc de
sub 57
- ld (FieldHeight),a
+ ld (FieldHeight),a
add a,57-5
- push hl
- ld l,a
- ld h,0
+ push de ; >> levelp
+ ld l,a
+ ld h,0
add hl,hl
add hl,hl
add hl,hl
add hl,hl
- ex de,hl
+ add hl,hl
+ ex de,hl
- ld hl,ScrBuffer
- push hl
- push de
- ld de,ScrBuffer+1
- ld bc,31
- ld (hl),-1
+ ld hl,ScrBuffer
+ push hl ; >> 1
+ push de ; >> 2
+ ld de,ScrBuffer+1
+ ld bc,63
+ ld (hl),%11111111
ldir
inc hl
- ld (hl),192
+ ld (hl),%11000000
inc hl
- ld b,14
+ ld b,31
ClearLine:
- ld (hl),c
+ ld (hl),c
inc hl
djnz ClearLine
- ld (hl),3
+ push hl ; >> 3
+
+ ld a,(FieldWidth)
+ add a,126
+ push af ; >> 4
+ and %11111000
+ rra
+ rra
+ rra
+ ld l,a
+ ld h,0
+ add hl,de
+ pop af ; << 3
+ and %00000111
+ ld b,a
+ ld c,0
+ ld a,%11000000
+ jr z,NoVertShift
+VertShift:
+ rra
+ rr c
+ djnz VertShift
+NoVertShift:
+ ld (hl),a
inc hl
- ex de,hl
- pop bc
+ ld (hl),c
+
+ ex de,hl
+ pop de ; << 2
+ pop bc ; << 1
ldir
- pop hl
- ld c,32
+ pop hl ; << 0k
+ ld c,64
ldir
- pop hl
- ld a,(hl)
+;-draw lines-
+
+ pop hl ; << levelp
+ ld a,(hl)
inc hl
- or a
- jr z,NoLines
+ or a
+ jr z,NoLines
DrawLines:
- push af
- ld d,(hl)
+ push af ; >> 1
+ ld d,(hl)
inc hl
- ld e,(hl)
+ ld e,(hl)
inc hl
- ld a,(hl)
+ ld a,(hl)
inc hl
- push hl
- ld l,(hl)
- ld h,a
+ push hl ; >> 2
+ ld l,(hl)
+ ld h,a
call Line
inc d
inc h
dec d
dec h
call Line
- pop hl
+ pop hl ; << 1
inc hl
- pop af
+ pop af ; << 0k
dec a
- jr nz,DrawLines
+ jr nz,DrawLines
NoLines:
- push hl
- ld hl,ScrBuffer
- ld de,ScrBuffer+BufSize
- ld bc,BufSize
- ldir
+;-----------------------------
- ld hl,0
- ld (_penCol),hl
- ld hl,LivesMsg
+ push hl ; >> levelp new
+
+ ld hl,0
+ ld (_penCol),hl
+ ld hl,LivesMsg
call _vputs
- ld a,(Lives)
+ ld a,(worm1+lives)
add a,'0'
call _vputmap
- ld a,40
- ld (_penCol),a
+ ld a,40
+ ld (_penCol),a
call _vputs ;scoremsg
- ld a,100
- ld (_penCol),a
+ ld a,100
+ ld (_penCol),a
call _vputs
- ld a,(Left)
+ ld a,1
+Left =$-1
call PutNum
-
+ ld ix,worm1
call PutScore
call NewPea
- xor a
+ pop hl ; << levelp new
+ push hl ; >> levelp new
+ ld bc,(worm1+pos)
call DisplayField
- ld hl,LevelMsg
- ld a,7
- call DispMsg
- ld a,(Level)
+ ld hl,LevelMsg
+ ld a,7
+ push hl ; >> 1
+ ld h,a
+ ld l,4
+ ld (_curRow),hl
+ ld hl,0FDE0h
+ ld de,0FDE1h
+ ld (hl),-1
+ ld bc,0BFh
+ ldir
+ pop hl ; << 0k
+ set 3,(iy+5)
+ call _puts
+ ld a,(Level)
+ cp 10
+ jr c,LevelBelowTen
+ ld l,a
+ ld h,0
+ call _divHLby10
+ push af ; >> 1
+ ld a,l
+ add a,'0'
+ call _putc
+ pop af ; << 0k
+LevelBelowTen:
add a,'0'
call _putc
res 3,(iy+5)
- xor a
+ ld b,0
ReadyDelay:
halt
- dec a
- jr nz,ReadyDelay
+ djnz ReadyDelay
- ld hl,(HeadPos)
- ld (TailPos),hl
- pop hl
- pop bc
- push hl
- ld de,0
+;-----------------------------
+;----------- LOOP ------------
+;-----------------------------
GameLoop:
-
- ld a,c
- sub 29
- jr nc,NotMinScroll
- xor a
-NotMinScroll:
- cp 43
-FieldHeight =$-1
- jr c,NotMaxScroll
- ld a,(FieldHeight)
-NotMaxScroll:
+ ld bc,(worm1+pos)
call DisplayField
- ld a,5
+ ld a,0
Speed =$-1
+ or a
+ jr z,NoDelay
Delay:
halt
dec a
- jr nz,Delay
+ jr nz,Delay
+NoDelay:
- ld hl,0A000h
-HeadPos =$-2
- ld (hl),c
- inc hl
- ld (hl),b
- inc hl
- res 4,h
- ld (HeadPos),hl
+ ld ix,worm1
+ call HandleWorm
+ ld ix,worm2
+ ld a,(nrworms)
+ cp 2
+ call z,HandleWorm
- ld hl,SinCosTable
-Heading =$-2
+;-----------------------------
+;---------- keys -------------
+;-----------------------------
- ld a,0FEh
+HandleKeys:
+ ld a,%10111111
out (1),a
- in a,(1)
+ in a,(1)
+ rla
+ jr c,NotPaused
+ ld bc,$0103
+ out (c),b
+ halt
+ ld b,11
+ out (c),b
+
+NotPaused:
+ rla
+ jp c,GameLoop
+Exit2pop:
+ pop hl ; << levelp new
+Exit1pop:
+ pop hl ; << levelp old
+ jr Exit
+
+Exit5pop:
+ pop hl
+ pop hl
+ pop hl
+ jr Exit2pop
+
+WormDead:
+ pop hl ; << call
+ pop hl ; << levelp new
+ ld hl,(worm1+head)
+ ld de,(worm1+tail)
+ sbc hl,de
+ ld a,l
+ rr h
rra
+ ld (worm1+grow),a
+
+ ld hl,(worm2+head)
+ ld de,(worm2+tail)
+ sbc hl,de
+ ld a,l
+ rr h
rra
- jr c,NotRight
- ld a,l
+ ld (worm2+grow),a
+
+ ld a,(ix+lives)
+ dec a
+ ld (ix+lives),a
+ pop de ; << levelp old
+ jp nz,NextLife
+Exit:
+
+#if 0
+ ld a,(Eaten)
+ ld hl,HiScore
+ cp (hl)
+ jr c,NotNewHigh
+ ld (hl),a
+ ld hl,_asapvar
+ rst 20h
+ rst 10h
+ call 460Bh
+ ld de,HiScore-_asm_exec_ram+2
+ add hl,de
+ adc a,0
+ call _load_ram_ahl
+ ld a,(HiScore)
+ ld (hl),a
+NotNewHigh:
+#endif
+ res 4,(iy+9)
+; ld sp,0
+SpSave = $-2
+ jp _clrWindow
+
+;-----------------------------
+;----------- worm ------------
+;-----------------------------
+
+inlink:
+ ld a,0
+sendbyte =$-1
+ call SendByte
+ jr c,receivefirst
+ call receive
+ ret
+receivefirst:
+ call receive
+ ld a,(sendbyte)
+ call SendByte
+ ret
+
+receive:
+receiveloop:
+ call GET_KEY
+ cp K_EXIT
+ jp z,Exit5pop
+ call TryReceiveByte
+ jr c,receiveloop
+ ld l,a
+ ret
+
+inkeys:
+ out (1),a
+ in a,(1)
+ ld b,a
+ and (ix+right)
+ jr z,NotRight
+ ld a,l
add a,8
- ld l,a
- inc a
+ ld l,a
NotRight:
- rra
- jr c,NotLeft
- ld a,l
+ ld a,b
+ and (ix+left)
+ ret z
+ ld a,l
sub 8
- ld l,a
-NotLeft:
+ ld l,a
+ ret
- ld (Heading),hl
+;------- handle worm ---------
- push bc
- ld a,(hl)
+HandleWorm:
+ ld l,(ix+heading)
+ ld a,(ix+input)
+ or a
+ jr nz,keys
+ call inlink
+ jr donelydone
+keys:
+ call inkeys
+donelydone:
+ ld a,l
+ ld (sendbyte),a
+ ld (ix+heading),l
+ ld h,(ix+heading+1)
+
+ ld c,(ix+pos)
+ ld b,(ix+pos+1)
+ ld e,(ix+pos2)
+ ld d,(ix+pos2+1)
+
+;-------- move worm ----------
+
+Wormmove:
+ push bc ; >> pos
+ ld a,(hl)
add a,a
add a,d
- ld d,a
+ ld d,a
bit 7,(hl)
- jr z,NotNegX
+ jr z,NotNegX
dec b
NotNegX:
- jr nc,NotMoveX
+ jr nc,NotMoveX
inc b
NotMoveX:
- ld a,l
+ ld a,l
add a,40h
- ld l,a
- ld a,(hl)
+ ld l,a
+ ld a,(hl)
add a,a
add a,e
- ld e,a
+ ld e,a
bit 7,(hl)
- jr z,NotNegY
+ jr z,NotNegY
dec c
NotNegY:
- jr nc,NotMoveY
+ jr nc,NotMoveY
inc c
-NotMoveY:
+NotMoveY: ;bc=newpos
- pop hl
- push de
- ld a,h
+;-check-
+ pop hl ; << pos (old)
+ push de ; >> pos2
+ ld a,h
sub b
and 1
- ld h,a
- ld a,l
+ ld h,a
+ ld a,l
sub c
and 1
add a,h
- ld d,4
- jr z,GotFour
+ ld d,4
+ jr z,GotFour
xor 3
- ld d,a
+ ld d,a
GotFour:
-
call CheckPixel
inc b
call CheckPixel
dec b
call CheckPixel
dec c
- rl d
- jr nc,WormNotCrashed
- ld hl,0
+ rl d
+ pop de ; << pos2
+
+ ld (ix+pos2),e
+ ld (ix+pos2+1),d
+ ld (ix+pos),c
+ ld (ix+pos+1),b
+ jr nc,Drawworm
+
+;--------- worm hit ----------
+
+Hitworm:
+ ld hl,0
PeaY =$-2
PeaX =$-1
- ld a,b
+ ld a,b
sub h
inc a
- cp 4
- jp nc,WormDead
- ld a,c
+ cp 4
+ jp nc,WormDead
+ ld a,c
sub l
inc a
- cp 4
- jr nc,WormDead
- push bc
+ cp 4
+ jp nc,WormDead
+ push bc ; >> 1
call DrawPea
- ld a,0
-GrowAmt =$-1
+ ld a,(ix+grow)
add a,15
- ld (GrowAmt),a
+ ld (ix+grow),a
call NewPea
- ld de,10
+ ld de,10
call IncScore
- ld a,119
- ld (_penCol),a
+ ld a,119
+ ld (_penCol),a
ld hl,Left
dec (hl)
- jr nz,NotNextLevel
- ld hl,Level
+ jr nz,NotNextLevel
+ ld hl,Level
+ ld a,(hl)
inc (hl)
- pop bc
- pop de
- pop hl
- pop de
- jp StartLevel
+ pop bc ; << 0k
+ pop hl ; << call
+ pop de ; << levelp new
+ pop hl ; << levelp old
+ cp NUM_LEVELS
+ jp z,Exit
+ ld a,(Gametype)
+ or a
+ jp z,StartLevel
+ jp Exit
NotNextLevel:
- ld a,(hl)
+ ld a,(hl)
call PutNum
- pop bc
-WormNotCrashed:
+ pop bc ; << 0k
+
+;-------- draw worm ----------
+
+Drawworm:
+ ld l,(ix+head)
+ ld h,(ix+head+1)
+ ld (hl),c
+ inc hl
+ ld (hl),b
+ inc hl
+ res resbit,h
+ ld (ix+head),l
+ ld (ix+head+1),h
- push bc
- ld a,3
-WormCol =$-1
call SetPixel
inc b
call SetPixel
dec b
call SetPixel
-; xor 2
-; ld (WormCol),a
+ ld a,(ix+grow)
+ dec a
+ jr z,removetail
+ ld (ix+grow),a
+ ret
- ld hl,GrowAmt
- dec (hl)
- jr nz,GrowWorm
- inc (hl)
- ld hl,0A000h
-TailPos =$-2
- ld c,(hl)
+removetail:
+ ld l,(ix+tail)
+ ld h,(ix+tail+1)
+ ld c,(hl)
inc hl
- ld b,(hl)
+ ld b,(hl)
inc hl
- res 4,h
- ld (TailPos),hl
+ res resbit,h
+ ld (ix+tail),l
+ ld (ix+tail+1),h
call ResPixel
inc b
inc c
call ResPixel
dec b
- call ResPixel
+ jp ResPixel
-GrowWorm:
+;-----------------------------
+;----------- procs -----------
+;-----------------------------
- ld a,0BFh
- out (1),a
- in a,(1)
- rla
- jr c,NotPaused
- call _getky
-WaitUnpause:
- halt
- call _getky
- or a
- jr z,WaitUnpause
- ld a,128
-NotPaused:
- pop bc
- pop de
+NewPea:
+;random routine
+ ld hl,0
+ ld de,12345
+Seed =$-2
+ ld a,7921 & 255
+ ld bc,1000h+(7921/256)
+domult16:
+ add hl,hl
rla
- jp c,GameLoop
- push hl
-WormDead:
- pop de
- pop hl
- ld hl,(HeadPos)
- ld de,(TailPos)
- sbc hl,de
- ld a,l
- rr h
- rra
- ld hl,Lives
- dec (hl)
- pop hl
- jp nz,NextLife
-
-#if 0
- ld a,(Eaten)
- ld hl,HiScore
- cp (hl)
- jr c,NotNewHigh
- ld (hl),a
- ld hl,Varname-1
- rst 20h
- rst 10h
- call 460Bh
- ld de,HiScore-_asm_exec_ram+2
+ rl c
+ jr nc,noadd16
add hl,de
- adc a,0
- call _load_ram_ahl
- ld a,(HiScore)
- ld (hl),a
-NotNewHigh:
-#endif
-
- im 1
- ld a,03Ch
- out (0),a
- call _clrScrn
- call _homeup
- jp _getky
-
-NewPea:
- call Random
- ld a,h
- and 7Fh
- cp 77h
- jr nc,NewPea
- add a,3
- ld h,a
+noadd16:
+ djnz domult16
+ inc hl
+ ld (Seed),hl ;seed=(seed*7921+1) MOD 65536
+ ld a,(FieldWidth)
+ add a,123
+ cp h
+ jr c,NewPea
+ inc h
+ inc h
ld a,(FieldHeight)
- add a,57-12
- ld b,a
- ld a,l
- and 7Fh
- cp b
- jr nc,NewPea
- add a,5
- ld l,a
+ add a,51
+ cp l
+ jr c,NewPea
+ inc l
+ inc l
ld (PeaY),hl
ld d,2
- push hl
+ push hl ; >> 1
call CheckPea
- pop hl
+ pop hl ; << 0k
dec d
jr z,NewPea
DrawPea:
call PeaPixel
dec c
PeaPixel:
- push de
+ push de ; >> 1
call FindPixel
- pop de
+ pop de ; << 0k
ld e,a
ld a,d
or a
ld (hl),a
ret
-Random:
- ld hl,0
- ld de,12345
-Seed =$-2
- ld a,7921 & 255
- ld bc,1000h+(7921/256)
-domult16:
- add hl,hl
- rla
- rl c
- jr nc,noadd16
- add hl,de
-noadd16:
- djnz domult16
- inc hl
- ld (Seed),hl ;seed=(seed*7921+1) MOD 65536
- ld a,h
- ret
+;-------- pixelprocs ---------
-ResPixel:
+ResPixel: ;at bc
call FindPixel
cpl
- ld d,a
- and (hl)
- ld (hl),a
- ld a,d
- ld de,BufSize
- add hl,de
and (hl)
- ld (hl),a
+ ld (hl),a
ret
-SetPixel:
- push bc
- push af
- push af
+SetPixel: ;at bc
call FindPixel
- pop de
- ld e,a
- rr d
- jr c,SetGrey1
- cpl
- and (hl)
- ld (hl),a
-SetGrey1:
- or (hl)
- ld (hl),a
- ld bc,BufSize
- add hl,bc
- ld a,e
- rr d
- jr c,SetGrey2
- cpl
- and (hl)
- ld (hl),a
-SetGrey2:
- or (hl)
- ld (hl),a
- pop af
- pop bc
+ or (hl)
+ ld (hl),a
ret
-CheckPixel:
- push de
+CheckPixel: ;at bc in d
+ push de ; >> 1
call FindPixel
- push af
and (hl)
- ld de,BufSize
- add hl,de
- ld e,a
- pop af
- and (hl)
- or e
- pop de
+ pop de ; << 0k
ret z
dec d
ret
-FindPixel:
- push bc
+FindPixel: ;bc to ahl + de gone
+ push de ; >> 1
+ push bc ; >> 2
ld a,b
and 7
add a,offsets_table & 255
ld e,a
ld d,offsets_table/256
ld h,0
- ld a,c
- add a,a
- add a,a
- rl h
- add a,a
- rl h
- add a,a
- rl h
- srl b
- srl b
- srl b
- or b
+ ld l,c
+ add hl,hl
+ add hl,hl
+ add hl,hl
+ add hl,hl
+ add hl,hl
+ ld a,b
+ and %11111000
+ rra
+ rra
+ rra
+ or l
ld l,a
ld a,(de)
ld de,ScrBuffer
add hl,de
- pop bc
+ pop bc ; << 1
+ pop de ; << 0k
ret
+;-----------------------------
+
IncScore:
- ld hl,(Score)
+ ld h,(ix+score+1)
+ ld l,(ix+score)
add hl,de
- ld (Score),hl
+ ld (ix+score+1),h
+ ld (ix+score),l
PutScore:
- ld hl,-1
- ld (_curRow),hl
- ld a,63
- ld (_penCol),a
- ld hl,(Score)
- xor a
- call 4A33h
- dec hl
- ld b,5
+ ld de,_penCol
+ ld a,79
+ ld (de),a
+ ld b,5
DoPutScore:
- ld a,(hl)
- inc hl
- cp 32
- jr nz,NotZeroDigit
- ld a,'0'
-NotZeroDigit:
- call _vputmap
+ push bc ; >> 1
+ push de ; >> 2
+ call _divHLby10
+ call PutDigit
+ pop de ; << 1
+ ld a,(de)
+ sub 8
+ ld (de),a
+ pop bc ; << 0k
djnz DoPutScore
ret
PutNum:
- ld l,a
- ld h,0
- call UNPACK_HL
- push af
- ld a,l
+ ld l,a
+ ld h,0
+ call _divHLby10
+ push af ; >> 1
+ ld a,l
call PutDigit
- pop af
+ pop af ; << 0k
PutDigit:
add a,'0'
- jp _vputmap
+ jp _vputmap
+
+;-----------------------------
offsets_table:
.db 128,64,32,16,8,4,2,1
-IHandler:
- exx
- ex af,af'
- in a,(3)
- bit 1,a
- jr z,notvbl
- ld hl,GreyCounter
- inc (hl)
- ld a,(hl)
- cp 3
- ld a,3Ch
- jr nz,notpage1
- ld (hl),0
- ld a,(GreyBuf/256)-0C0h
-notpage1:
- out (0),a
-notvbl:
- jp 3Ah
-IHandlerEnd:
-GreyCounter .db 0
-
DisplayField:
- ld l,a
- ld h,0
+ ld a,c
+ sub 29
+ jr nc,NotMinYScroll
+ xor a
+NotMinYScroll:
+ cp 43
+FieldHeight =$-1
+ jr c,NotMaxYScroll
+ ld a,(FieldHeight)
+NotMaxYScroll:
+ ld l,a
+ ld h,0
add hl,hl
add hl,hl
add hl,hl
add hl,hl
- push bc
- push de
- ld de,ScrBuffer
+ add hl,hl
+ push bc ; >> 1
+ push de ; >> 2
+ ld de,ScrBuffer
add hl,de
- ld de,0FC70h
- ld bc,00390h
+ ld a,b
+ sub 64
+ jr nc,NotMinXScroll
+ xor a
+NotMinXScroll:
+ cp 128
+FieldWidth = $-1
+ jr c,NotMaxXScroll
+ ld a,(FieldWidth)
+NotMaxXScroll:
+ push af ; >> 3
+ and %11111000
+ rra
+ rra
+ rra
+ ld c,a
+ ld b,0
+ ld de,DispBuffer
+ pop af ; << 2
+ and %00000111
+ push af ; >> 3
+ cp 6
+ jr c,CopyScreen
+ inc c
+CopyScreen:
+ add hl,bc
+ ld b,57
+CopyScreenLoop:
+ push bc ; >> 4
+ ld bc,16
ldir
- ld de,BufSize-390h
- add hl,de
- ld de,GreyBuf+70h
- ld bc,00390h
+ ld c,16
+ add hl,bc
+ pop bc ; << 3
+ djnz CopyScreenLoop
+ pop af ; << 2
+ ld c,$b7 ;or a
+Bit0:
+ jr nz,Bit1
+ halt
+ halt
+ jr AfterShiftDelay
+Bit1:
+ dec a
+ jr nz,Bit2
+ call ShiftRight1
+ jr AfterShiftDelay
+Bit2:
+ dec a
+ jr nz,Bit3
+ ld a,2
+ call ShiftRight
+ jr AfterShiftDelay
+Bit3:
+ dec a
+ jr nz,Bit4
+ call Chunk
+ call ShiftLeft1
+ jr AfterShift
+Bit4:
+ dec a
+ jr nz,Bit5
+ call Chunk
+ jr AfterShiftDelay
+Bit5:
+ dec a
+ jr nz,Bit6
+ call Chunk
+ call ShiftRight1
+ jr AfterShift
+Bit6:
+ dec a
+ jr nz,Bit7
+ ld a,2
+ call ShiftLeft
+ jr AfterShift
+Bit7:
+ call ShiftLeft
+AfterShiftDelay:
+ halt
+AfterShift:
+ ld hl,DispBuffer
+ ld de,$fc00+$70
+ ld bc,1024-$70
ldir
- pop de
- pop bc
+ pop de ; << 1
+ pop bc ; << 0k
ret
-DispMsg:
- push hl
- ld h,a
- ld l,4
- ld (_curRow),hl
- ld hl,0FDE0h
- ld de,0FDE1h
- ld (hl),-1
- ld bc,0BFh
- ldir
- pop hl
- set 3,(iy+5)
- jp _puts
+ShiftRight1:
+ ld a,1
+ShiftRight:
+ ld (ShiftRightCounter),a
+ ld a,c
+ ld (ShiftRightChunk),a
+ ld c,16
+ add hl,bc
+ ld b,57
+ShiftRightLoop:
+ push bc ; >> 1
+ ld bc,-32
+ add hl,bc
+ ex de,hl
+ ld a,(de)
+ShiftRightChunk:
+ or a
+ call c,_SHLACC
+ ld c,0
+ShiftRightCounter = $-1
+ShiftRowsLeft:
+ push hl ; >> 2
+ rla
+ ld b,16
+ShiftRowLeft:
+ dec hl
+ rl (hl)
+ djnz ShiftRowLeft
+ pop hl ; << 1
+ dec c
+ jr nz,ShiftRowsLeft
+ ld bc,-16
+ add hl,bc
+ ex de,hl
+ pop bc ; << 0k
+ djnz ShiftRightLoop
+ ret
+ShiftLeft1:
+ ld a,1
+ShiftLeft:
+ ld (ShiftLeftCounter),a
+ ld a,c
+ ld (ShiftLeftChunk),a
+ rla
+ jr nc,ShiftLeftSameByte
+ dec hl
+ShiftLeftSameByte:
+ ex de,hl
+ ld bc,-16
+ add hl,bc
+ ex de,hl
+ ld b,57
+ShiftLeftLoop:
+ push bc ; >> 1
+ ld bc,-32
+ add hl,bc
+ ex de,hl
+ ld a,(de)
+ShiftLeftChunk:
+ or a
+ call c,_SHRACC
+ ld c,0
+ShiftLeftCounter = $-1
+ShiftRowsRight:
+ push hl ; >> 2
+ rra
+ ld b,16
+ShiftRowRight:
+ rr (hl)
+ inc hl
+ djnz ShiftRowRight
+ pop hl ; << 1
+ dec c
+ jr nz,ShiftRowsRight
+ ld bc,-16
+ add hl,bc
+ ex de,hl
+ pop bc ; << 0k
+ djnz ShiftLeftLoop
+ ret
+
+Chunk:
+ push hl ; >> 1
+ push de ; >> 2
+ ld c,16
+ add hl,bc
+ ld b,57
+ChunkScreen:
+ push bc ; >> 3
+ ld bc,-32
+ add hl,bc
+ ex de,hl
+ ld a,(de)
+ call _SHRACC
+ ld b,16
+ChunkRow:
+ dec hl
+ rld
+ djnz ChunkRow
+ ex de,hl
+ pop bc ; << 2
+ djnz ChunkScreen
+ pop de ; << 1
+ pop hl ; << 0k
+ ld c,$37 ;scf
+ ret
+
+;-----------------------------
+;----------- link ------------
+;-----------------------------
+
+LINKMASK =3
+LINKPORT =7
+TIMEOUT =$1000
+
+LinkPrep:
+ ex (sp),hl
+ push bc
+ push de
+ set 2,(iy+12h)
+ ld b,8
+ jp (hl)
+
+TryReceiveByte:
+ in a,(LINKPORT)
+ and LINKMASK
+ cp LINKMASK
+ scf
+ ret z
+ReceiveByteCont:
+ call LinkPrep
+ jr ReceiveCont
+ReceiveByte:
+ call LinkPrep
+ReceiveBits:
+ ld de,TIMEOUT
+WaitRecBit:
+ call CheckLink
+ jr z,LinkFailed
+ cp LINKMASK
+ jr z,WaitRecBit
+ReceiveCont:
+ sub LINKMASK/3*2
+ ld a,LINKMASK/3*2
+ ld d,D0LD1H
+ jr c,ReceiveLow
+ rra
+ ld d,D0HD1L
+ReceiveLow:
+ rr c
+ ld (AckBit),a
+ ld a,d
+ out (LINKPORT),a
+ ld de,TIMEOUT
+WaitAckRec:
+ call CheckLink
+ cp 0
+AckBit =$-1
+ jr nz,WaitAckRec
+ ld a,D0HD1H
+ out (LINKPORT),a
+ ld d,4
+WaitReadyRec:
+ dec d
+ jr z,ReadyRec
+ in a,(LINKPORT)
+ cp LINKMASK
+ jr nz,WaitReadyRec
+ReadyRec:
+ djnz ReceiveBits
+ jr LinkSuccess
+
+SendByte:
+ call LinkPrep
+ ld c,a
+
+ inc b
+ jr SendAcked
+
+SendBits:
+ rr c
+ ld a,D0LD1H
+ jr nc,SendLow
+ ld a,D0HD1L
+SendLow:
+ out (LINKPORT),a
+ ld de,TIMEOUT
+WaitAckSend:
+ call CheckLink
+ jr nz,WaitAckSend
+SendAcked:
+ ld a,D0HD1H
+ out (LINKPORT),a
+ ld de,TIMEOUT
+WaitReadySend:
+ call CheckLink
+ cp LINKMASK
+ jr nz,WaitReadySend
+ djnz SendBits
+LinkSuccess:
+ or 0
+.org $-1
+LinkFailed:
+ scf
+ ld a,c
+ res 2,(iy+12h)
+ pop de
+ pop bc
+ pop hl
+ ret
-Levels:
- .db 5,7 ;5 peas, speed 7
- .db 64,4,0 ;x,y,d
- .db 57 ;field height
+CheckLink:
+ pop hl
+ dec de
+ ld a,d
+ or e
+ jr z,LinkFailed
+ ld a,0BFh
+ call _readkeypad
+ bit 6,a
+ jr z,LinkFailed
+ in a,(LINKPORT)
+ and LINKMASK
+ jp (hl)
+
+_readkeypad:
+ out (1),a
+ in a,(1)
+ push af
+ ld a,255
+ out (1),a
+ pop af
+ ret
+
+
+
+;-----------------------------
+;---------- levels -----------
+;-----------------------------
+
+LevelsDM:
+
+ .db 8,0
+ .db $40,30,4,$C0,30,123
+ .db 0,0
+; .db 128,57
+ .db 0
+
+NUM_LEVELS = 9
+
+LevelsS:
+
+ .db 5,3 ;5 peas, speed 5
+ .db 0,4,64,0,0,0 ;d,y,x
+ .db 0,0 ;field width, height
.db 0 ;no additional lines
- .db 8,6
- .db 4,14,40h
- .db 57
+ .db 8,4
+ .db $40,14,4,0,0,0
+ .db 128,57
.db 1
.db 28,28,100,28
- .db 99,5
- .db 4,14,40h
- .db 100
+ .db 9,4
+ .db $40,8,4,0,0,0
+ .db 128,57
+ .db 2
+ .db 28,14,100,14
+ .db 28,41,100,41
+
+ .db 9,3
+ .db $40,8,4,0,0,0
+ .db 128,80
.db 2
- .db 28,28,28,72
- .db 100,28,100,72
+ .db 64,14,64,66
+ .db 20,40,108,40
+
+ .db 10,3
+ .db 4,8,$40,0,0,0
+ .db 128,90
+ .db 3
+ .db 18,20,18,70
+ .db 110,20,110,70
+ .db 18,45,110,45
+
+ .db 7,3
+ .db 64,4,0,0,0,0
+ .db 128,86
+ .db 6
+ .db 34,13,56,35
+ .db 34,71,56,49
+ .db 72,35,94,13
+ .db 72,49,94,71
+ .db 16,20,16,64
+ .db 110,20,110,64
-#include trigtab.asm
-#include line.asm
+ .db 9,2
+ .db 4,10,$40,0,0,0
+ .db 128,82
+ .db 3
+ .db 0,20,74,20
+ .db 54,40,128,40
+ .db 0,60,74,60
-WormMsg .db "Wonderworm!",0
+ .db 12,2
+ .db 64,4,0,0,0,0
+ .db 128,90
+ .db 6
+ .db 20,16,54,16
+ .db 74,16,110,16
+ .db 20,16,20,72
+ .db 110,16,110,72
+ .db 20,72,54,72
+ .db 74,72,110,72
+
+ .db 8,2
+ .db 72,52,$c0,0,0,0
+ .db 128,128
+ .db 13
+ .db 34,56,56,34
+ .db 34,72,56,94
+ .db 72,34,94,56
+ .db 72,94,94,72
+ .db 46,64,80,64
+ .db 22,11,22,33
+ .db 11,22,33,22
+ .db 22,95,22,117
+ .db 11,106,33,106
+ .db 103,11,103,33
+ .db 91,22,115,22
+ .db 103,95,103,117
+ .db 91,106,115,106
+
+
+;-----------------------------
+;---------- data -------------
+;-----------------------------
+
+TrigPrecalc:
+.db 0, 3, 6, 9, 12, 15, 18, 21
+.db 24, 27, 30, 33, 36, 39, 42, 45
+.db 48, 51, 54, 57, 59, 62, 65, 67
+.db 70, 73, 75, 78, 80, 82, 85, 87
+.db 89, 91, 94, 96, 98,100,102,103
+.db 105,107,108,110,112,113,114,116
+.db 117,118,119,120,121,122,123,123
+.db 124,125,125,126,126,126,126,126
+.db 127
+
+#include "line.asm"
+
+txtWelcome .db "Welcome to PeaWorm!! ",
+ .db "by Jonah and Shiar",0
+txtMenu .db "Start Game",0
+ .db "Game: ",0
+ .db "Options",0
+ .db "Quit",0
+txtGame .db "Singleplayer",0
+txtGame2 .db "Deathmatch ",0
+ .db "Hot Pursuit",0
+ .db "CTF ",0
+WormMsg .db "Wonderworm!",0
LevelMsg .db "Level ",0
LivesMsg .db "Lives: ",0
ScoreMsg .db "Score: ",0
LeftMsg .db "Food: ",0
-HiScore .db 0
-Varname .db 4,"worm"
-
-Left =$
-Lives =$+1
-Level =$+2
-Score =$+3
-
-SinCosTable =09E00h
-ScrBuffer =8200h
-BufSize =0A00h
-GreyBuf =0F400h
+HiScore .db 0
+
+nrworms .db 2
+worm1 .dw 0,0,0,0,0,0,0,0
+ .db 0,%11111110,%10,%100
+worm2 .dw 0,0,0,0,0,0,0,0
+ .db 0,0,%10000,%1000
+; .db 0,%00111111,%10000,%1000
+
+ ;set:
+heading = 0 ;level*
+pos = 2 ;level*
+pos2 = 4 ;level
+head = 6 ;level
+tail = 8 ;level
+grow = 10 ;level
+lives = 13 ;game
+score = 15 ;game
+input = 17 ;
+left = 18 ;
+right = 19 ;
+
+Worm1 = $B000
+Worm2 = $B800
+resbit = 2
+
+Level =$+1
+DispBuffer =$+2
+
+ScrBuffer = $8200 ;32x256 bytes
+SinCosTable = $A200
+
+;-----------------------------
+;----------- end -------------
+;-----------------------------
.end
git.shiar.nl / wormy.git / blobdiff