;Description : cool arcade-shoot-em-up-game
;Other games by author : Worm
;This source should only be used for learning practises, do not
-;alter it, and certainly do not distribute an altered version!!
+;alter it, and certainly never distribute an altered version!!
;&&& marks uncertainties or things to optimize
;---------------------- in-game vars ----------------------------------------
just_fired = storepos ; +0 ;counts how long a blast lasts
-menuitem = storepos ; +0 ;used to store menu location
hiscorepos = storepos ; +0 ;entering hiscore name
; ;--------YOU
x = storepos+1 ; +1 ;your ship's position
firey = firex+1 ; +4 ;(1 byte)
; ;--------LEVEL
eventleft = storepos+5 ; +5 ;nr. of enemies still to come
-nextevent = eventleft+1 ; +6 ;time to next event
-level_enemy = nextevent+1 ; +7 ;enemy type
+level_enemy = eventleft+1 ; +7 ;enemy type
level_info = level_enemy+1 ; +8 ;info (see below)
level_move = level_info+1 ; +9 ;=
- ; ;--------OBJECTS
-spacespace = storepos+19 ;+19
+spacespace = level_move+1 ;+10
groundinfo = spacespace+1 ;+20
groundpos = groundinfo+1 ;+21 $10
ceilingpos = groundpos+16 ;+37 $10
starx2 = starx1+(nrstars1*2) ;+69
; ;--------MULTIPLES
your_prevpos = starx2+(nrstars2*2) ;+87 ;save previous positions (32d)
-mm = 4
+mm = 4 ;max. number of multiples
;^-----------------------------------<1 ;-120=$78
.dw Title ;pointer to description (all shells)
.dw Icon ;pointer to YAS icon
-Title: .db "Nemesis v0.98 by SHIAR",0
+Title: .db "Nemesis v0.99.810 by SHIAR",0
Icon: .db 8,1 ;icon for YAS: width = 1byte; height = 9bytes
.db %11100000 ; ███
.db %00111110 ; █████
.db %01111000 ; ████
.db %11100000 ; ███ ;recommend 80x50 screen mode
- .DB 0 ;clear stupid YAS-line
-
+ .db 0 ;YAS 0.92 compatibility
+;43
;---------------------- init ------------------------------------------------
int_handler: ;new interrupt proc
ld hl,txt_menu2
cal _puts
- xor a
- ld (menuitem),a
-
menuloop:
- ld a,(menuitem)
+ ld a,0 ;current menu item (0 or 1); 0 by default
+menuitem =$-1
ld h,$01
add a,4
ld l,a
ld (_curRow),hl
cal _putc
- halt \ halt
-
- cal GET_KEY ;wait for keypress
- cp K_UP
- jr z,menuchange
- cp K_DOWN
- jr z,menuchange
+ cal getsomekeys ;read keys (z if enter/2nd pressed)
+ jr z,start_tha_freakin_game
cp K_EXIT
jr z,menuexit
cp K_F1
cal z,do_invert
- cp K_SECOND
- jr z,start_tha_freakin_game
- cp K_ENTER
+ cp K_UP
+ jr z,menuchange
+ cp K_DOWN
jr nz,menuloop
-start_tha_freakin_game:
+menuchange:
+ ld hl,menuitem
+ ld a,(hl)
+ xor 1 ;0=1; 1=0
+ ld (hl),a ;set new menu item
+ jr menuloop
+start_tha_freakin_game:
ld a,(menuitem)
dec a
cal nz,New_game ;NEW GAME
jp samelevel ;CONTINUE: game_main_loop
menuexit:
- ld hl,0
- ld (your_score),hl
- jp game_over
-
-menuchange:
- ld a,(menuitem)
- xor 1
- ld (menuitem),a
- jr menuloop
+ ld hl,0 ;reset score
+ ld (your_score),hl ;(prevents hiscore while never played)
+ jp game_over ;and go to game over screen
do_invert: ;invert screen (b<>w); destr:b
psh hl
pop hl
ret
+getsomekeys:
+ halt
+ halt
+ cal GET_KEY
+ cp K_SECOND
+ ret z
+ cp K_ENTER
+ ret
+
;----------------------------------------------------------------------------
;---------------------- game loop -------------------------------------------
;----------------------------------------------------------------------------
psh hl ;push hl on stack (instead of cal Fire_bullet)
jp z,Fire_bullet ;fire smtn (bulletstaillasermultiples+stuff..)
pop hl ;no cal to Fire_bullet made, so pop stack
- xor a ;no:
- ld (just_fired),a ;reset just_fired
+ ld hl,just_fired ;no:
+ ld (hl),5 ;able to fire (five turns = laser duration)
check_selkey:
ld a,%01011111 ;look at first column of keys (ALPHA to STO)
- out (1),a ;gimme
- nop \ nop ;what's taking you so long
- in a,(1) ;at last... our precious keyzzz...
+ out (1),a
+ in a,(1) ;our precious keys
bit 6,a ;'bout the GRAPH key...
cal z,Teacher ;you didn't _press_ it, did you?!?
cal Level_event ;insert enemies
cal Display_Screen ;display all
- ld b,1
-___:
- halt ;delay
- dnz ___
+delay:
+ halt ;delay and preserve batteries :)
jp game_main_loop ;LOOP ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+;------- weapon -------
+
inc_weapdamage:
ld a,0
weapincs =$-1
weapdamage =$-1
add a,b ;a=total damage
ld (curweapdamage),a ;safe the current damage
- cal disp_charge
+
+
+disp_charge: ;display charge bar
+ ld hl,(59*16)+VIDEO_MEM+3
+ ld b,3
+chargebarclr:
+ dec hl
+ ld (hl),0
+ dnz chargebarclr
+
+ ld a,(weapincs) ;load bar size (0-80)
+ srl a ;half the size (0-40)
+ srl a ;again half that size (0-20 pixels)
+ ld c,a ;psh a
+ srl a ;/2
+ srl a ;/4
+ srl a ;/8: don't display last 3 bits of a (later)
+ jr z,nochargebar ;if a=0 then it would loop 256x so skip it
+ ld b,a ;loop b=a times
+chargebar: ;starting at ($39*16)+VIDEO_MEM
+ ld (hl),%11111111 ;draw a piece of the bar
+ inc hl ;next position
+ dnz chargebar ;loop it b times
+nochargebar:
+ ld a,c ;pop a
+ and %111 ;display last bits of chargebar
+ ret z ;if armor=0 then bit = %00000000 (don't disp)
+ ld b,a ;into B
+ xor a ;bit = %00000000
+chargebarbit:
+ scf ;set carry flag
+ rra ;rotates A right and sets bit 7 (c-flag)
+ dnz chargebarbit ;repeat B times (so if B=6 then a=%11111100)
+chargebarready: ; (an if B=3 then a=%11100000)
+ ld (hl),a ;draw this last byte
ret
;--------------------------- ground -----------------------------------------
movestars2:
ld ix,starx2
ld a,(stars2)
- rlca
+ rlca ;move bits (star) left
ld (stars2),a
- ret nc
- ld b,nrstars2
+ ret nc ;if star didn't went from left to right bit
+ ld b,nrstars2 ;otherwise move all stars one byte left
jr movestars_loop
movestars1:
ld a,l
and %00001111
- cp 9 ;(GRAPH_MEM&%00001111)-- = $C9FAand15-1 = $A-1
+ cp (dispbuffer&15)-1 ;$C9FAand15-- = 9
jr nz,newstarok
cal RandomY
;------------------------- fire bullet --------------------------------------
-fire_multiples:
- ld hl,(your_prevpos+16);then, fire from multiple position
+fire_multiple:
psh af
dec h ;one up (-2 height: keeps weapons centered)
+ psh ix ;save ix for next fire
cal fireany ;fire from multiple position
+ pop ix ;saving ix is much faster than recalculating
pop af ;number of multiples
dec a ;one just displayed
- ret z ;return if none left
+ pop hl ;ret
+ ret z ;ret2 if none left
+ jp (hl) ;real ret
+
+fire_multiples:
+ ld hl,(your_prevpos+16);then, fire from multiple position
+ cal fire_multiple
ld hl,(your_prevpos+30)
- psh af
- dec h
- cal fireany
- pop af
- dec a
- ret z
+ cal fire_multiple
ld hl,(your_prevpos+44)
- psh af
- dec h
- cal fireany
- pop af
- dec a
- ret z
+ cal fire_multiple
ld hl,(your_prevpos+58)
- psh af
- dec h
- cal fireany
- pop af
- dec a
+ cal fire_multiple ;no JP: that messes up the stack
ret
Fire_bullet:
- ld hl,just_fired
- ld a,(hl) ;just_fired
- cp 5 ;already pressed?
- ret z ;return when already pressed (=5)
+ ld hl,just_fired ;=for how long you may hold fire (2nd)
+ ld a,(hl) ;a = time left
+ dec a ;decrease timer
+ ret z ;may not fire when (just_fired) became 0
+ ld (hl),a ;save new decreased value
- inc (hl) ;otherwise increase counter (0 to 4 >> 1 to 5)
ld a,(your_weapon) ;if you have bullets.....
cp maxweapon
jr nc,fireOK ;>weapons = laser
- ld (hl),5 ;.....then can't fire next turn (go to 5 imm.)
-
+ ld (hl),1 ;bullet may last one turn (just fire 1 bullet)
fireOK:
+ ld a,(your_weapon) ;weapon nr.
+ ld ix,weapondata+2
+ add a,a ;weap*2
+ add a,a ; *4
+ add a,a ; *8
+ ld c,a
+ ld b,0 ;go to current weapon (bc=a)
+ add ix,bc ;ix=weapon ptr
+
ld a,(your_multiples) ;any multiples?
and %111 ;nr. of multiples
cal nz,fire_multiples ;if >0 then fire them too
ld hl,(x) ;fire from ship position (x)
fireany: ;HL=(x,y)
ld (firex),hl ;set position to fire from
- ld a,(your_weapon)
- ld ix,weapondata+2-(256*3)
- add a,a ;weap*2
- add a,a ; *4
- add a,a ; *8
- ld c,a
- ld b,3 ;go to current weapon (bc=a), b=3 :P
- add ix,bc
-
-fire_weapon: ;b=3
+ ld b,3 ;or use the proc at fireOK with ld ix,weapondata+2-(256*3)
+fire_weapon:
psh bc ;save counter
ld a,(ix) ;load this weapon
cp %11100000 ;%11110000=laser
cp %11100000 ;issit laser
ret z ;then return
xor %11111 ;smart way of going left instead of right :P
- jr fire_ybullet ;fire tail bullet and return
+ ;fire tail bullet
+;-----fire BULLETs-----
+
+fire_ybullet: ;fire bullet type=C dam=(curweapdamage) at (firex/y)
+ ld c,a ;save bulletType in c
+ ld hl,ybullets ;check for unused bullet
+ ld de,4
+ ld b,nrybuls
+find_ybullet:
+ ld a,(hl)
+ or a
+ jr z,found_ybullet ;0 = no bullet here
+ add hl,de
+ dnz find_ybullet ;look next bullet
+ ret ;none found, return don't fire
+
+found_ybullet:
+ ld (hl),c ;use the bullet and set correct bullet-type
+ inc hl ;@damage
+ ld (hl),1 ;set bullet damage
+curweapdamage =$-1
+ ld a,(firex) ;your x-pos
+ add a,5 ;place bullet in front of you
+ inc hl ;go to bullet-x
+ ld (hl),a ;set x
+
+ ld a,(firey) ;your y-pos
+ add a,(ix+1) ;place bullet at the middle of your ship
+ inc hl ;go to bullet-y
+ ld (hl),a ;set y
+
+ xor a
+ ld (weapincs),a ;reset damage
+ ret
;-----fire LASER-----
pop ix
ret
-;-----fire BULLETs-----
-
-fire_ybullet: ;fire bullet type=C dam=(curweapdamage) at (firex/y)
- ld c,a ;save bulletType in c
- ld hl,ybullets ;check for unused bullet
- ld de,4
- ld b,nrybuls
-find_ybullet:
- ld a,(hl)
- or a
- jr z,found_ybullet ;0 = no bullet here
- add hl,de
- dnz find_ybullet ;look next bullet
- ret ;none found, return don't fire
-
-found_ybullet:
- ld (hl),c ;use the bullet and set correct bullet-type
- inc hl ;@damage
- ld (hl),1 ;set bullet damage
-curweapdamage =$-1
- ld a,(firex) ;your x-pos
- add a,5 ;place bullet in front of you
- inc hl ;go to bullet-x
- ld (hl),a ;set x
-
- ld a,(firey) ;your y-pos
- add a,(ix+1) ;place bullet at the middle of your ship
- inc hl ;go to bullet-y
- ld (hl),a ;set y
-
- xor a
- ld (weapincs),a ;reset damage
- ret
-
;------------------------ handle bullets ------------------------------------
-bullet_left:
+move_bullet:
ld c,a ;c=type
and %11111 ;pixels to move
add a,(hl) ;a = X + (hl) to the right
inc hl ;@y-pos
ld a,c
cal _shracc ;%11110000->1111
+;Note: a _shracc procedure inside Nemesis itself would be 27 cycles faster
srl a ;%1110->111
dec a
jr z,bullet_noymove ;1=straight forward
bullet_halfdown: ;5=1/2down
ld a,(timer)
- and 1
- jr z,bullet_noymove
+ rra ;carry once every other turn
+ jr c,bullet_noymove
bullet_down:
ld a,(hl)
inc a
ld (hl),a
bullet_halfup:
ld a,(timer)
- and 1
- jr z,bullet_noymove
+ rra ;CF every other turn
+ jr c,bullet_noymove
bullet_up:
ld a,(hl)
dec a
ret
remove_bullet:
- pop hl ;cal bullet_left
+ pop hl ;cal move_bullet
pop hl ;enemy+type
ld (hl),0 ;dump this bullet!
jr next_ybullet+1 ;+1:skip pop hl at next_ybullet
ld hl,ybullets
ld b,nrybuls
scan_bullets:
+ ld a,(hl) ;@bulletType
+ or a ;bulletType=0 >> no bullet
+ jp z,next_ybullet+2 ;skip pops (+2); jP for speed
+
psh bc ;bullet counter
psh hl ;save enemy+type
ld (temp1),hl ;needed for check_bullethits
- ld a,(hl) ;@bulletType
inc hl ;@damage
inc hl ;@x
-
- or a
- jp z,next_ybullet ;bulletType=0 >> no bullet
- cal bullet_left ;move bullet left
+ cal move_bullet ;move bullet
display_bullet:
- psh de ;save de =position
dec hl ;@x
dec hl ;@damage
ld a,(hl) ;bullet damage=size
ld hl,bullettable ;pointer to first bullet
srl a
srl a ;per 4
- ld d,0
- ld e,a ;->16bit (de=a)
- add hl,de ;point to correct bullet offset
+ ld b,0
+ ld c,a ;->16bit (de=a)
+ add hl,bc ;point to correct bullet offset
ld a,(hl) ;load bullet offset
- ld e,a ;convert to 16bit (d=0)
+ ld c,a ;convert to 16bit (d=0)
ld ix,spr_bullet01 ;first sprite
- add ix,de ;add offset (go to correct sprite)
- pop de ;saved position
+ add ix,bc ;add offset (go to correct sprite)
ld a,(ix) ;bullet x-size
ld (bulletxsize),a ;used at check_bullethits
next_ybullet:
pop hl ;restore enemy+type
- inc hl
+ pop bc ;b=counter
+ inc hl ;&&&add hl = faster
inc hl
inc hl
inc hl ;skip type,dam,x,y: next enemy+type
- pop bc ;b=counter
dnz scan_bullets ;next bullet (loop)
ret
;--------------------------- level events -----------------------------------
Level_event:
- ld hl,nextevent ;time to next event <ld a,(nextevent)
- dec (hl) ;decrease counter <dec a
- ld a,(hl) ;look at counter <ld (nextevent),a
- or a ;has it reached zero?
- ret nz ;nope: get outta here!
+ ld a,0 ;time to next event
+nextevent =$-1
+ dec a ;decrease counter
+ ld (nextevent),a ;store new value
+ ret nz ;hasn't reached zero yet: get outta here!
ld bc,0 ;enemy frequency (lvl)
eventtime =$-2
;otherwise?
halflure_enemy: ;yes (of course it is): pick one (50% lure)
ld a,(timer) ;look at frame-number
- and %00000001 ;make random if odd frame nr.
- jr nz,random_enemy ;1st possibility: random enemy
+ rra ;make random if odd frame nr.
+ jr nc,random_enemy ;1st possibility: random enemy
lure_enemy: ;2nd possibility: luring enemy
ld a,(y) ;place at same y-pos as YOUR ship
jr ypos_OK
ld b,nrebuls
ld hl,ebullets
+ xor a
find_ebullet:
- ld a,(hl)
- or a
+ cp (hl)
jr z,found_ebullet ;0 = not used
inc hl \ inc hl \ inc hl
dnz find_ebullet ;look next bullet
ret
found_ebullet:
- ld b,%1100
+ ld b,1 ;default normal bullet
ld a,(level_info)
and %00001000
jr z,bulletok
sub e
add a,10
jp p,bulletnotup
- ld b,%1011 ;yourY-bulY = negative (=bullet below you)
+ ld b,5 ;yourY-bulY = negative (=bullet below you)
add a,10
jp p,bulletnotup
- ld b,%1001 ;yourY-bulY = even more negative (going up)
+ ld b,3 ;yourY-bulY = even more negative (going up)
bulletnotup:
sub 20
jp m,bulletok
- ld b,%1010 ;bullet going down
+ ld b,4 ;bullet going down
sub 10
jp m,bulletok ;even more going down
- ld b,%1000
+ ld b,2
bulletok:
- ld a,(level_info)
- and %11110000
- or b
- ld (hl),a ;set bullet direction
+ ld (hl),b ;set bullet direction
inc hl
ld (hl),d ;set x-pos
inc hl
psh bc
psh hl
ld a,(hl) ;load bulletType in a
- and %1111 ;select direction-bits
+ or a ;bullet present?
jr nz,enemy_bullet ;non-0: handle bullet
next_bullet:
pop hl ;do not move the <pop hl>
ld d,(hl) ;d=x
inc hl ;@y
- ld a,b ;restore type
- cp %1100 ;is it a normal bullet? (cp = faster than bit)
- jr z,ebullet_common ;type %1100: normal bullet
- and %111 ;isolate important bits
- jr z,ebullet_down ;type %1000: moving down
- dec a
- jr z,ebullet_up ;type %1001: moving up
- ld b,a
+ dec b
+ jr z,ebullet_common ;type 1: normal bullet
+ dec b
+ jr z,ebullet_down ;type 2: moving down
+ dec b
+ jr z,ebullet_up ;type 3: moving up
ld a,(timer)
- rra
- jr c,ebullet_common
+ rra ;half speed
+ jr c,ebullet_common ;if bit then normal bullet
- ld a,b
- dec a
- jr z,ebullet_down ;type %1010: moving down 50%
- ;type %1011: moving up 50%
+ dec b
+ jr z,ebullet_down ;type 4: moving down 50%
+ ;type 5: moving up 50%
ebullet_up:
ld a,(hl)
dec a
- jp m,ebullet_common
+ jp m,ebullet_common ;y<0
ld (hl),a
jr ebullet_common
ebullet_down:
ld a,(hl)
inc a
- cp 55
+ cp 58-3
jr z,ebullet_common
ld (hl),a
ld b,a ;set damage-amount
cal damage_you ;HIT!!
remove_ebullet:
- pop hl ;hl could be destroyed by damage_you
+ pop hl ;hl destroyed by damage_you
ld (hl),0 ;bullet > unused
jr next_bullet+1 ;next bullet (SKIP THE <POP HL> = one byte)
jr firing_done ;continue
check_enemyfire:
- inc hl ;@y
- inc hl ;@movetype
- inc hl ;@movecount
- inc hl ;@firecount
+ ld bc,4 ;4x inc hl
+ add hl,bc ;@firecount
dec (hl) ;decrease counter till next blast
ld a,(hl) ;&&&doesn't seem efficient to me
or a ;has it reached zero?
dnz handle_enemy
ret
-remove_enemy:
- pop hl
- ld (hl),$0000 ;bye bye enemy
- jr next_enemy+1 ;continue AFTER pop hl (already done)
-
exploding_enemy:
inc hl
ld a,(hl)
cp 16
- jr z,remove_enemy ;remove when at last frame
+ jr nz,keep_enemy ;remove when at last frame
+remove_enemy:
+ pop hl
+ ld (hl),$0000 ;bye bye enemy
+ jr next_enemy+1 ;continue AFTER pop hl (already done)
+keep_enemy:
inc a
ld (hl),a ;next frame
dec a ;1-16 -> 0-15
;--------------------------- moving enemies ---------------------------------
moving_enemy:
+ dec d ;move left once
ld a,(hl) ;how does this enemy move?
- bit 7,a ;direction indicator
- jr nz,moveright
-moveleft:
- dec d
- jr moveXdone
-moveright:
- inc d
-moveXdone:
- res 7,a ;01111111=movetype:
and a
- ret z ;0 = don't move
- dec a
- jr z,movetype_updown ;1 = 0 >< up / down
- dec a
- jr z,movetype_vslow ;2 = .75 >>
- dec a
- jr z,movetype_slow ;3 = .5 >>
- dec a
- jr z,movetype_fast ;4 = .5 <<
- dec a
- jr z,movetype_vfast ;5 = 1 <<
- dec a
- jr z,movetype_smart ;6
- dec a
- jr z,movetype_lure ;7 = 1 >> move y towards you
- dec a
- jr z,movetype_slowlure ;8 = 1 >> lure 1/2 speed
- dec a
-; jr z,movetype_stoplure ;9 = 1 >> slowlure; stop at x=99
-; dec a
-; jr z,movetype_fulllure ;10 = x+y towards you 1/2 speed
+ ret z ;0 = (1<)
+ ld b,a
+ ld a,(timer)
+ dec b
+ jr z,movetype_updown ;1 = (1<) up / down
+ dec b
+ jr z,movetype_vslow ;2 = (.25<)
+ dec b
+ jr z,movetype_slow ;3 = (.5<)
+ dec b
+ jr z,movetype_fast ;4 = (1.5<)
+ dec b
+ jr z,movetype_vfast ;5 = (2<)
+
+ inc d ;speed 0
+ dec b
+ jr z,movetype_smart ;6 = &&& smart
+ dec b
+ jr z,movetype_lure ;7 = (0) move y towards you
+ dec b
+ jr z,movetype_slowlure ;8 = (0) lure 1/2 speed
+ dec b
+ dec b
+ jr z,movetype_fulllure ;10 = x+y towards you 1/2 speed
+ dec b
+ jr z,movetype_right ;11 = (.5>)
+ dec b
+ jr z,movetype_fright ;12 = (1>)
+
+movetype_right:
+ rra
+ ret c ;speed 0 50%
+movetype_fright:
+ inc d ;move right one px
+ ret
movetype_fulllure:
- ld a,(timer)
- and 1
- ret z
+ rra
+ ret c ;50% speed
cal movetype_lure
ld a,(x)
cp d
- ret c ;move left (already did)
+ jr c,movetype_vfast ;moves left (again)
lure_right:
- inc d ;already moved left, so move right
-moverightonce:
- inc d ;twice (=+1)
+ inc d ;move right
ret
movetype_slowlure:
- ld a,(timer)
- and 1 ;half the time
- jr z,moverightonce ;dont move at all (compensate move left +ret)
+ rra ;half the time
+ ret c
movetype_lure:
- ld a,104
+ ld a,110
cp d
- jr c,dothelurethingy
- inc d ;x<106: full stop
+ jr nc,dothelurethingy
+ dec d ;x>109: move left
dothelurethingy:
ld a,(y)
cp e
- ret z ;don't move if equal
+ ret z ;don't move vertically if equal
jr c,lure_up ;below you then move up
lure_down: ;above then move down
inc e
ret
-lure_up:
- dec e
+lure_up:dec e
ret
movetype_smart:
- inc hl ;hl =@ <move>
- ld a,(timer)
- and %1111 ; |
- ld a,(hl) ;&&& \|/
- jr nz,smartupdate
+ inc hl ;@movecount
+ ld a,(hl)
inc a
-smartupdate:
+ and %1111
ld (hl),a
or a ;reset carry flag
jr z,movetype_fast
movetype_slow:
- ld a,(timer)
- and %1
- ret z
+ rra
+ ret c
+ inc d ;don't move
+ ret
movetype_vslow:
- ld a,(timer)
and %11
ret z
- inc d
+ inc d ;don't move
ret
movetype_fast:
- ld a,(timer)
- and %1
- ret z
+ rra
+ ret c ;once every other turn
movetype_vfast:
- dec d ;move left
- ret nz ;finished
- pop hl ;restore stack (no ret used)
- jp remove_enemy ;remove this enemy (off screen)
+ dec d ;move left twice
+ ret
movetype_updown:
- inc hl ;@ <move>
+ inc hl ;@movecount
ld a,(hl)
dec a
- jr nz,move_updated
- add a,128
-move_updated:
- ld (hl),a
-
- or a ;reset carry flag
- dec hl ;@ <y>
- and %00100000
- ld a,(hl);&&&ld a,e ;load current y-position
+ and 127 ;range 0..127
+ ld (hl),a ;store new movecounter
+ dec hl ;reset hl to @movetype
+ and %00100000 ;ZF changes once every 64 turns
+ ld a,e ;load current y-position
jr z,movedown
-
moveup: dec a ;decrease y-pos (=move up)
ret m ;don't move off the screen (y<0)
dec e ;save new y-pos
ld hl,(x) ;e = X, d = Y
ld de,$0707 ;add 7 to both d and e
add hl,de
- ld d,h
- ld e,l ;e = X+7, d = Y+7
+ ex de,hl ;e = X+7, d = Y+7
ld hl,enemies+1
ld b,nrenemies ;check all 20 enemies
;--------------------------- story ------------------------------------------
storyPage:
- psh hl
- cal _clrLCD
+ psh hl ;hl will be destroyed by _clrLCD
+ cal _clrLCD ;clear screen
pop hl
+ ld a,(hl)
+ ld (curline),a ;begin line for special effect
storyLine:
+ ld d,(hl) ;vertical position of text
inc hl
- ld e,(hl)
+ ld e,(hl) ;horizontal text-position
+ ld (_penCol),de ;set position
inc hl
- ld d,(hl)
- ld (_penCol),de
- inc hl
- cal _vputs
+ cal _vputs ;display text
- ld a,(hl)
- dec a
- jr z,storyLine
+ ld a,(hl) ;load next byte
+ inc hl
+ or a ;0 means more text
+ jr z,storyLine ;loop if there is
+ psh af
psh hl
ld hl,VIDEO_MEM ;copy text
ld de,dispbuffer ;to GRAPH_MEM
ld bc,1024 ;entire screen
ldir
- cal _clrLCD
+ cal _clrLCD ;clear VIDEO_MEM
pop hl
-
- inc hl
- ld a,(hl)
- inc hl
- ld b,(hl)
+ pop bc ;last byte (<>0) is lines to SFX
psh hl
- cal DoSFX
- cal _getkey
+ cal DoSFX ;do special effects
+ cal _getkey ;wait for a key
pop hl
ret
dostory:
cal storyPage ;do some story
- inc hl ;look at next hl
- ld a,(hl) ;load in a
- dec hl ;restory hl
+ ld a,(hl) ;load next byte in a
inc a ;set z-flag if a = $ff
jr nz,dostory ;otherwise loop
-
- ld bc,2+1 ;story ends
- add hl,bc ;set hl to beginning of the level
+ inc hl
+ inc hl ;set hl to beginning of the level
ld (levelp),hl ;set the level-pointer
ret ;and return
;--------------------------- SFX --------------------------------------------
-DoSFX: ;in:a=beginLine;b=nrOfLines
- ld (curline),a
-SFXframe:
+DoSFX: ;in:(curline)=beginLine;b=nrOfLines
+SFXloop:
psh bc
ld a,0 ;get line number
curline =$-1
inc a ;go to the next line
ld (curline),a ;update
-
ld l,a
ld h,0 ;hl=a
add hl,hl
add hl,hl
add hl,hl
add hl,hl ;*16 (a pixels down=a*16)
+ sub 64 ;a=a-64
+ neg ;a=64-a (lines from bottom)
ld b,h ;save hl for later
ld c,l
-
ld de,VIDEO_MEM ;where to put sfx
add hl,de ;go to ymin
ex de,hl ;put into de again
-
- ld hl,dispbuffer
- add hl,bc ;hl->logo
-
- sub 64 ;a=a-64
- neg ;a=64-a (lines from bottom)
-
-; ld c,a ;c=a=(curline)
-; ld a,64
-; sub c ;lines from bottom
+ ld hl,dispbuffer ;source of original
+ add hl,bc ;hl->source
SFXdisp: ;display this frame on screen
ld bc,16 ;one line (=16 bytes, you'd know by now)
dnz SFXdelay ;8x
pop bc ;counter
- dnz SFXframe
+ dnz SFXloop
ret
;--------------------------- show icon --------------------------------------
ld (hl),a ;and just below
ret
-disp_charge:
- ld hl,(59*16)+VIDEO_MEM+3
- ld b,3
-chargebarclr:
- dec hl
- ld (hl),0
- dnz chargebarclr
-
- ld a,(weapincs) ;load bar size (0-80)
- srl a ;half the size (0-40)
- srl a ;again half that size (0-20 pixels)
- ld c,a ;psh a
- srl a ;/2
- srl a ;/4
- srl a ;/8: don't display last 3 bits of a (later)
- jr z,nochargebar ;if a=0 then it would loop 256x so skip it
- ld b,a ;loop b=a times
-chargebar: ;starting at ($39*16)+VIDEO_MEM
- ld (hl),%11111111 ;draw a piece of the bar
- inc hl ;next position
- dnz chargebar ;loop it b times
-nochargebar:
- ld a,c ;pop a
- and %111 ;display last bits of chargebar
- ret z ;if armor=0 then bit = %00000000 (don't disp)
- ld b,a ;into B
- xor a ;bit = %00000000
-chargebarbit:
- scf ;set carry flag
- rra ;rotates A right and sets bit 7 (c-flag)
- dnz chargebarbit ;repeat B times (so if B=6 then a=%11111100)
-chargebarready: ; (an if B=3 then a=%11100000)
- ld (hl),a ;draw this last byte
- ret
-
;--------------------------- proc -------------------------------------------
Random: ;a=c<random<b+c; destr:none
in a,(1)
inc a ;cp %11111111 (no keys pressed)
jr nz,releasekeys ;keep waitin
- cal GET_KEY ;clear buffer
- ret
+ jp GET_KEY ;clear buffer
findenemyspecs: ;enemy #a specs in (hl); in:b=0; out:ac=?
ld hl,enemyspecs-8 ;enemy "0" specs (1 before enemy #1)
ld hl,_curCol
dec (hl)
nokeypressed:
- halt \ halt
- cal GET_KEY
+ cal getsomekeys
+ jr z,nomore
or a
jr z,nokeypressed
cp K_DEL
jr z,backup
- cp K_ENTER
- jr z,nomore
cp K_EXIT
jr z,nomore
jp z,game_over ;and game's over
jr samelevel
+gamedone:
+ cal dostory ;display end (hl=(levelp))
+ ld hl,250
+ cal scoreInc ;game complete bonus: 250
+ jp game_over ;game over (+hiscore)
+
;--------------------------- next level -------------------------------------
Next_level: ;stack must be +1
pop hl
cal inc_armor ;increase armor
- ld hl,level ;level number
- ld a,(hl)
- inc a
- ld (hl),a
+
+ ld hl,(levelp) ;level pointer
+ ld b,0 ;advance one level
+ ld c,(hl)
+ add hl,bc ;passed the enemies
+ ld c,1+7+3
+ add hl,bc ;update to point to next level
+ ld (levelp),hl ;save
+
+ ld a,(level) ;level number
+ inc a ;next level #
+ cp endlevel+1 ;last level done?
+ jr nc,gamedone ;yes: display end story and quit
+ ld (level),a
add a,a
add a,a
add hl,bc ;plus 20
cal scoreInc ;update score
- ld hl,(levelp) ;level pointer
- ld b,0 ;advance one level
- ld c,(hl)
- add hl,bc ;passed the enemies
- ld c,1+7+32+3
- add hl,bc ;update to point to next level
- ld (levelp),hl ;save
-
samelevel:
ld hl,(your_ship)
ld (your_shipspr),hl
ld (nextevent),a ;time to first enemy appearance
ld hl,(levelp) ;level pointer
- xor a
+ dec hl ;byte before level (boss byte)
+ xor a ;if it's zero it means here's a story
cp (hl)
- cal z,dostory
+ inc hl ;begin of level
+ cal z,dostory ;do the story and set (levelp) to real level
ld a,(hl) ;number of (different) enemies in this level
inc hl
ld a,(hl) ;load nr of enemies in this level
ld (eventleft),a ;set nr of events left
inc hl
- ld a,(hl)
- ld (level_info),a ;
- inc hl
- ld a,(hl) ;movement of enemies in this level
- ld (level_move),a ;do it
+ ld de,level_info
+ ldi ;load (level_info)
+ ldi ;load (level_move)
+ ldi ;load (spacespace)
+ ldi ;load (groundinfo)
- inc hl
- ld de,spacespace
- ld c,17+17+2 ;b=0
- ldir
+ ld a,1
+ ld b,32 ;fill (groundpos) and (ceilingpos)
+fillground:
+ ld (de),a
+ inc de
+ dnz fillground
ld ix,starx1
ld b,nrstars1
;--------------------------------- bullets ----------------------------------
+bullettable:
+ .db (spr_bullet01-spr_bullet01) ;0
+ .db (spr_bullet02-spr_bullet01) ;4
+ .db (spr_bullet03-spr_bullet01) ;8
+ .db (spr_bullet04-spr_bullet01) ;12
+ .db (spr_bullet05-spr_bullet01) ;16
+ .db (spr_bullet06-spr_bullet01) ;20
+ .db (spr_bullet07-spr_bullet01) ;24
+ .db (spr_bullet08-spr_bullet01) ;28
+ .db (spr_bullet09-spr_bullet01) ;32
+ .db (spr_bullet10-spr_bullet01) ;36
+ .db (spr_bullet11-spr_bullet01) ;40
+ .db (spr_bullet12-spr_bullet01) ;44
+ .db (spr_bullet13-spr_bullet01) ;48
+ .db (spr_bullet13-spr_bullet01) ;52
+ .db (spr_bullet13-spr_bullet01) ;56
+ .db (spr_bullet13-spr_bullet01) ;60
+
spr_bullet01:
.db 2,1
.db %11000000 ;▒██
.db %11000000 ;▒██
.db %11000000 ;▒██
spr_bullet04:
- .db 3,2
- .db %11100000 ;▒███
- .db %11100000 ;▒███
+ .db 4,2
+ .db %10110000 ;▒█▒██
+ .db %10110000 ;▒█▒██
spr_bullet05:
.db 4,3
.db %01100000 ; ▒██
.db %01111111 ; ▒███████
.db %11111110 ;▒███████
.db %00111100 ; ▒████
+
spr_bullett1:
.db 4,3 ;▒▒▒
.db %11100000 ;▒███
.db %11110000 ;████▒
.db %01100000 ; ██▒
-bullettable:
- .db (spr_bullet01-spr_bullet01) ;0
- .db (spr_bullet02-spr_bullet01) ;4
- .db (spr_bullet03-spr_bullet01) ;8
- .db (spr_bullet04-spr_bullet01) ;12
- .db (spr_bullet05-spr_bullet01) ;16
- .db (spr_bullet06-spr_bullet01) ;20
- .db (spr_bullet07-spr_bullet01) ;24
- .db (spr_bullet08-spr_bullet01) ;28
- .db (spr_bullet09-spr_bullet01) ;32
- .db (spr_bullet10-spr_bullet01) ;36
- .db (spr_bullet11-spr_bullet01) ;40
- .db (spr_bullet12-spr_bullet01) ;44
- .db (spr_bullet13-spr_bullet01) ;48
- .db (spr_bullet13-spr_bullet01) ;52
- .db (spr_bullet13-spr_bullet01) ;56
- .db (spr_bullet13-spr_bullet01) ;60
-
;format:[min.damage] [dam.inc] [000:direction 00000:speed] [offset]
;damage = min.damage + dam.inc*incs (0<=incs<=6)
;speed in pixels/frame (>=%10010=forward; <=%01110=backwards)
txt_email: .db "www.shiar.org ",127 ;title screen
.db " shiar0@hotmail.com",0
_txt_email = $3A01 ;$3A1E=just email
-txt_about: .db "v0.98.79 ",127," by Shiar",0 ;right behind txt_email
+txt_about: .db "v0.99.810 ",127," by Shiar",0 ;right behind txt_email
_txt_about = $3321
txt_menu1: .db "NEW GAME",0
txt_menu2: .db "CONTINUE",0
storehi_start:
hiscore .dw 0 ;default hiscore
-hiname .db "shiar.98",0 ; " " name
+hiname .db "shiar.99",0 ; " " name
storehi_end:
storesave_start: ;--SAVED GAME-- defs:
pickuptimer .db 4 ;counts when to place a pickup 4
your_ship .dw spr_ship01 ;your sprite sprs1
your_score .dw 0 ;current score 0
-your_pickup .db 3 ;pickups already picked up 0
+your_pickup .db 5 ;pickups already picked up 0
your_occ .db 0 ;0=normal 1..16=exploding 0
your_inv .db 0 ;invincibility left 0
your_armor .db 12 ;HP left 12
; @level: [nr.dif.enemies]x [enemy nr]
; [min. enemy frequency] [enemy frequency max.inc] [next lvl]
; [level_info: 0000:damage 0:diagfire 0:ground 0:ceiling 0:?]
-; [level_move] [tunnel size] [groundtype]
-; [16_ground] [16_ceiling] [stars1] [stars2]
+; [level_move] [tunnel size] [groundtype] [stars1] [stars2]
;efrequency must be odd if halfluring!
-level00:
- .db 0 ;story identifier
- .db $21,$1d,"Cosmic year 6716" ,0,0,$1d,$06
- .db $1b,$1d,"STORYLINE COMING SOON" ,0,0,$1d,$06
- .db $09,$19,"STORYLINE COMING SOON" ,0,1
- .db $2e,$21,"**** NEMESIS 86" ,0,1
- .db $52,$36,"by Shiar" ,0,0,$19,$23
- .db $ff ;story end
+ .db 0 ;storyline ID
+level00: ;[y-pos] [x-pos] [text,0] [SFX lines; 0=more text] [-1=end]
+ .db 25,33,"Imperial ships have",0,0
+ .db 31,9,"been sent to intercept you",0,31-25+6,-1
.db 20 ;boss for level01
level01: ;intro-like, just a few enemies to begin with
.db 2,6,8
.db 26,70,20,%00010000,0,0,0
- .db 1,2,3,4,5,6,6,5,4,3,4,5,4,5,6,5
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
.db 1,1
.db 21
level02: ;first wave of enemies; easeey
.db 3,6,7,8
.db 20,60,60,%00100000,0,0,0
- .db 1,2,3,4,5,6,6,5,4,3,4,5,4,5,6,5
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
.db 1,1
.db 22
level03: ;some more enemies
.db 4,7,8,9,10
.db 17,40,75,%00110000,0,0,0
- .db 1,2,3,4,5,6,6,5,4,3,4,5,4,5,6,5
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
.db 1,1
- .db 0,0 ;storyline ID
+ .db 0
.db 1,1,"Long-Range scanners are ",
- .db "showing",0,1
- .db 1,8,"lots of enemy vessels on ",
- .db "an intercept",0,1
- .db 1,15,"course.",0,1
- .db 1,24,"I'm changing course to a",
- .db " nearby ",0,1
- .db 1,31,"asteroid belt and try to",0,1
- .db 1,38,"lose them inthere.",0,0
- .db 1,38+5,$FF
+ .db "showing",0,0
+ .db 8,1,"lots of enemy vessels ",
+ .db "advancing fast.",0,8-1+6
+ .db 24,1,"I'm changing course to a",
+ .db " nearby ",0,0
+ .db 31,1,"asteroid belt and try to",0,0
+ .db 38,1,"lose them inthere.",0,38-24+6,-1
.db 23
-level04: ;light asteroid belt
- .db 3,1,2,4
+level04: ;approaching asteroid belt
+ .db 7,11,11,12,12,13,1,2
.db 12,24,80,%00111000
- .db 2,0,0
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 ;16
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
- .db 1,1
+ .db 2,0,0,1,1
.db 24
-level05: ;inside asteroid belt
- .db 5,1,2,3,4,5
- .db 6,10,180,%01011000
- .db 2,0,0
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 ;16
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
- .db 1,1
+level05: ;light asteroid belt
+ .db 5,11,12,1,2,4
+ .db 12,24,80,%00111000
+ .db 2,0,0,1,1
.db 25
-level02a:
- .db 3,4,5,6
- .db 30,1,40,%01000000
- .db 0,0,0
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 ;16
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
- .db 1,1
+level06: ;inside asteroid belt
+ .db 6,13,1,2,3,4,5
+ .db 7,18,180,%01011000
+ .db 2,0,0,1,1
- .db 0
+ .db 0,1,1,"That's it for now...",0,5,-1
+
+endlevel = 6
.db 0
- .db $01,01,"And the storyline conti",
- .db "nues.....",0,1
- .db $01,09,"You decide to fly close",
- .db " to the",0,1
- .db $01,15,"surface of a nearby pl",
- .db "anet =)",0,0,1,20
- .db $FF
+ .db 1,1,"And the storyline conti",
+ .db "nues.....",0,5
+ .db 9,1,"You decide to fly close",
+ .db " to the",0,0
+ .db 15,1,"surface of a nearby pl",
+ .db "anet =)",0,15-9+6,-1
.db 26
level03b:
- .db 1,$02
+ .db 1,2
.db $13,40,$4b,%00100100,0,-5,1
- .db 1,2,3,4,5,6,6,5,4,3,4,5,4,5,6,5
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
.db 1,1
.db 0
.db 27
level03a:
.db 1,$03
- .db $2d,$3f,%00010110,0,-9,1
- .db 3,2,4,3,2,2,1,1,1,1 ,1,1,21,17,18,20
- .db 1,1,1,1,1,1,1,3,6,12,9,1,21,19,18,18
+ .db $2d,$3f,%00110110,0,-9,1
.db -1,-1 ;=%11111111=line
.db $07,$08
level04b:
.db 1,$04
.db $11,$41,%00100001,0,0,0
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
.db 1,1
.db $07,$09
level05a:
.db 1,$05
.db $11,$45,%00100101,%10,-7,1
- .db 14,12,11,9,10,7,7,5,4,3,4,4,2,3,1,2
- .db 1, 1, 1, 1,1, 1,1,1,1,1,1,1,1,1,1,1
.db 1,1
.db $07,$08
level06c:
.db 1,$06
.db $19,$3a,%00100111,0,-4,1
- .db 20,22,18,15,9,1,1,1,1,1,1,1,1,1,1,1
- .db 20,22,18,15,9,1,1,1,1,1,1,1,1,1,1,1
.db 1,1
.db $07,$09
level07:
.db 1,$07
.db $09,$ff,%00100001,0,0,0
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
- .db 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
.db 1,1
;------------------------------ enemies -------------------------------------
;appearances: 1=random; 2=lure; 3=halflure
;case movetype:
; 1=updown; 2=1/4x; 3=1/2x; 4=1.5x; 5=2x; 6=smart; 7=y-lure;
-; 8=y-lure 1/2x; 9=8 stop at x=99; 10=x+y-lure 1/2x
+; 8=y-lure 1/2x; 9=x; 10=x+y-lure 1/2x
enemyspecs:
;1-5=asteroids
.db 0,%00100110,(spr_enemyA1-spr_enemy00)/2,128,1,0,0,0
.db 0,%00110010,(spr_enemyE4-spr_enemy00)/2,128,1,3,6,50 ;slow
.db 0,%00100110,(spr_enemyE2-spr_enemy00)/2,128,1,0,1,0
.db 0,%00101110,(spr_enemyE3-spr_enemy00)/2,128,3,0,19,39
- .db 0,%00101010,(spr_enemyE5-spr_enemy00)/2,128,3,4,1,0 ;fast
-;11=jumping bug (up/down)
- .db 0,%00001111,(spr_enemyN3-spr_enemy00)/2,128,2,1,87,5
+ .db 0,%00101010,(spr_enemyE5-spr_enemy00)/2,128,3,4,1,0 ;fast
+;11-12=backwards
+ .db 0,%00011110,(spr_enemyB1-spr_enemy00)/2,0,3,11,19,92
+ .db 0,%00101110,(spr_enemyB2-spr_enemy00)/2,0,1,12,11,45
+ .db 0,%00110110,(spr_enemyB3-spr_enemy00)/2,0,1,11,10,41 ;small
- .db 0,%00000011,(spr_enemy00-spr_enemy00)/2,1,0,0,0,0 ;12
- .db 0,%00000011,(spr_enemy00-spr_enemy00)/2,1,0,0,0,0 ;13
- .db 0,%00000011,(spr_enemy00-spr_enemy00)/2,1,0,0,0,0 ;14
+ .db 0,%00001111,(spr_enemyN3-spr_enemy00)/2,128,2,1,87,5
.db 0,%00000011,(spr_enemy00-spr_enemy00)/2,1,0,0,0,0 ;15
.db 0,%00000011,(spr_enemy00-spr_enemy00)/2,1,0,0,0,0 ;16
.db 0,%00000011,(spr_enemy00-spr_enemy00)/2,1,0,0,0,0 ;17
.db 0,%00000011,(spr_enemy00-spr_enemy00)/2,1,0,0,0,0 ;18
.db 0,%00000011,(spr_enemy00-spr_enemy00)/2,1,0,0,0,0 ;19
-;20-22=first bosses
- .db 1,%00101011,(spr_boss0_1-spr_enemy00)/2,127,1,8,20,12 ;20
- .db 1,%00110011,(spr_boss0_1-spr_enemy00)/2,127,1,8,15,10 ;21
- .db 1,%01001011,(spr_boss0_2-spr_enemy00)/2,127,3,9,10,9 ;22
-;23-24=asteroid bosses
- .db 2,%00001011,(spr_boss0_3-spr_enemy00)/2,127,1,10,36,14
- .db 2,%00110011,(spr_boss0_3-spr_enemy00)/2,127,2,10,28,12
-;25-26=big bosses
- .db 2,%00000111,(spr_boss0_4-spr_enemy00)/2,127,3,7,18,7 ;25=bigboss1
- .db 2,%01001011,(spr_boss0_5-spr_enemy00)/2,127,3,7,18,7 ;26=bigboss2
+;20-23=first bosses
+ .db 1,%00101011,(spr_boss2-spr_enemy00)/2,127,1,8,20,12 ;small
+ .db 1,%00110011,(spr_boss1-spr_enemy00)/2,127,1,8,15,10
+ .db 1,%01001011,(spr_boss1-spr_enemy00)/2,127,3,10,10,9
+ .db 0,%11111111,(spr_boss3-spr_enemy00)/2,127,3,10,1,4 ;weak+rapidfire
+;24-25=asteroid bosses
+ .db 2,%00001011,(spr_bossA1-spr_enemy00)/2,127,1,10,36,14
+ .db 2,%00110011,(spr_bossA1-spr_enemy00)/2,127,2,10,28,12
+;26-27=big bosses
+ .db 2,%00000111,(spr_boss4-spr_enemy00)/2,127,3,7,18,7
+ .db 2,%01001011,(spr_boss5-spr_enemy00)/2,127,3,7,18,7
spr_enemy00:
.db 16,8 ;pickup
.db %01111000 ; ████
.db %00011100 ; ███
+spr_enemyB1:
+ .db 6,6 ;solid backwards
+ .db %11110000 ;████
+ .db %00101000 ; █ █
+ .db %01010100 ; █ █ █
+ .db %01010100 ; █ █ █
+ .db %00101000 ; █ █
+ .db %11110000 ;████
+spr_enemyB2:
+ .db 6,7
+ .db %11110000 ;████
+ .db %01001000 ; █ █
+ .db %01110100 ; ███ █
+ .db %00100100 ; █ █
+ .db %01110100 ; ███ █
+ .db %01001000 ; █ █
+ .db %11110000 ;████
+ .db 0
+spr_enemyB3:
+ .db 5,7
+ .db %11100000 ;███
+ .db %01010000 ; █ █
+ .db %01111000 ; ████
+ .db %01000000 ; █
+ .db %01111000 ; ████
+ .db %01010000 ; █ █
+ .db %11100000 ;███
+ .db 0
+
spr_enemyG1:
.db 8,6 ;G-Type
.db %00111111 ; █████
.db %01111000 ; ████
.db %00111111 ; █████
spr_enemyG5:
- .db 6,6 ;G lost his head; large window ;)
+ .db 6,6
.db %01111100 ; █████
.db %10110000 ;█ ██
.db %10111000 ;█ ███
.db %10110000 ;█ ██
.db %01111100 ; █████
spr_enemyG6:
- .db 7,6 ;small G-type
+ .db 7,6 ;small G-type solid
.db %00011110 ; ████
.db %01111000 ; ████
.db %11110000 ;████
.db %10111110 ;█ █████
.db 0
-spr_boss0_1:
- .db 16,10 ;boss type one..:.......:
+spr_boss1:
+ .db 16,10 ;.......:.......:
.db %00000001 ; ██████ ██
.db %00001110 ; ███ █ ███
.db %00110010 ; ██ █ ████
.db %00101110
.db %11111011
.db 0
-spr_boss0_2:
- .db 16,10 ;boss type two..:.......:
+spr_boss2:
+ .db 12,12 ;.......:....5..:
+ .db %00011110 ; ████
+ .db %01100001 ; ██ ██
+ .db %10110010 ;█ ██ █ ██
+ .db %00000101 ; █ ██ █
+ .db %00001010 ; █ █ ██
+ .db %00011010 ; ██ █ █ █
+ .db %00011010 ; ██ █ █ █
+ .db %00001010 ; █ █ ██
+ .db %00000101 ; █ ██ █
+ .db %10110010 ;█ ██ █ ██
+ .db %01100001 ; ██ ██
+ .db %00011110 ; ████
+ .db 11
+ .db %00000000
+ .db %10000000
+ .db %01100000
+ .db %10100000
+ .db %01100000
+ .db %10010000
+ .db %10010000
+ .db %01100000
+ .db %10100000
+ .db %01100000
+ .db %10000000
+spr_boss3:
+ .db 16,10 ;.......:.......:
.db %11111110 ;███████
.db %00000011 ; ███ ████
.db %00110101 ; ██ █ ████ █
.db %01111010 ; ████ █ █ █ ██
- .db %10001101 ;█ ██ █ ██ ██
- .db %10001101 ;█ ██ █ ██ ██
+ .db %10001101 ;█ ██ █ ██ ██ █
+ .db %10001101 ;█ ██ █ ██ ██ █
.db %01111010 ; ████ █ █ █ ██
.db %00110101 ; ██ █ ████ █
.db %00000011 ; ███ ████
.db %10001111
.db %11100001
.db %10010110
- .db %01101100
- .db %01101100
+ .db %01101101
+ .db %01101101
.db %10010110
.db %11100001
.db %10001111
-spr_boss0_3:
+spr_bossA1:
.db 16,11 ;bigasteroid one
.db %00011110 ; ████
.db %01110011 ; ███ ███
.db %11110000
.db %11000000
.db 0
-spr_boss0_4:
+spr_boss4:
.db 16,18 ;bigboss one :
.db %00000000 ; █ █
.db %00000111 ; ███ ███
.db %11010000
.db %01110000
.db %01010000
-spr_boss0_5:
+spr_boss5:
.db 16,15 ;bigboss two :
.db %00001111 ; █████
.db %00111110 ; █████ █████
; 0.99.79 -- 9.VII.00 -- size 6747
;
; + you can have upto FOUR multiples! (~20 pixels apart)
+; * some optimizations: keycall, menu handling, port nops removed,
+; more SMC, fire handling, fast bullet handling, enemy movement
+; * better "backwards" enemies handling (and implemented in game)
;
; + added - removed * changed # bug fixed
git.shiar.nl / nemesis.git / commitdiff