;---------------------- NEMESIS ---------------------------------------------
;----------------------------------------------------------------------------
-; Title : Nemesis
-; Version : 0.97
-; Release Date : 25.VI.00
-; Filename : nemesis.86p (6kb)
-; Author(s) : Shiar
-; Email Address : shiar0@hotmail.com
-; ICQ ; #43840958
-; Web Page : www.shiar.org
-; Description : cool arcade-shoot-em-up-game
-; Where to get this game : www.shiar.org | www.ticalc.org
-; Other games by author : Worm
-
-; ABOUT: This source should only be used for learning practises, do not
-; alter it, and certainly do not distribute an altered version!!
-; NOTE: &&& marks uncertainties or things to optimize
+;by SHIAR | shiar0@hotmail.com | icq#43840958 | www.shiar.org
+
+;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!!
+
+;&&& marks uncertainties or things to optimize
;---------------------- nemesis.z80 start -----------------------------------
#define psh push ; ^:D
#define dnz djnz ;Dec&Jump while NonZero becomes Do w.Non-Zero
-;GRAPH_MEM = $C9FA ;display buffer
-TEXT_MEM = _textShadow ;167 bytes ($A7): C0F9-C1A0
-_clrWindow = $4a86 ;a new procedure from AsmStudio86 inc. files
-_ex_ahl_bde = $45f3
-_shracc = $4383
-_dispahl = $4a33
-_asapvar = $d6fc
+;GRAPH_MEM = $C9FA ;display buffer (virtual screen)
+;VIDEO_MEM = $FC00 ;tha big scareen
+TEXT_MEM = _textShadow ;text buffer; C0F9-C1A0 (167/$A7 bytes)
+
+_clrWindow = $4a86 ;_clrLCD and _clrScrn
+_ex_ahl_bde = $45f3 ;exchange values between AHL and BDE
+_shracc = $4383 ;like _shlacc but just the opposite :P
+_dispahl = $4a33 ;display value in ahl <100000 (cheap TI)
+_asapvar = $d6fc ;our own variable name (likely "nemesis")
-storepos = _asm_exec_ram+6000 ;120 OF 165
-storepos2 = _asm_exec_ram+6200 ;141 OF 167
+storepos = _asm_exec_ram+7000 ;120 OF 165
+storepos2 = _asm_exec_ram+7200 ;141 OF 167 9000 BYTES
;---------------------- in-game vars ----------------------------------------
;^-----------------------------------<1 ;-120=$78
enemies = storepos2 ; +0 ;info about each enemy
-enemysize = 8 ;infobytes per enemy
+enemysize = 9 ;infobytes per enemy
nrenemies = 16 ;max. nr of enemies
ybullets = enemies+(nrenemies*enemysize) ;60 bytes = 20(state,damg,x,y)
; [0000:damage 0:diagfire 0:ground 0:ceiling 0:-]
;enemies:
; [HP64] [000000:HP left 00:(00=no enemy 01=exploding 10=normal 11=moving)]
-; [ship type or explosion frame] [x] [y] [movecounter] [firecounter] [firefreq]
+; [ship type or explosion frame] [x] [y] [movetype] [movecounter] [firecounter] [firefreq]
;---------------------- introduction ----------------------------------------
jr z,menuchange
cp K_EXIT
jr z,menuexit
- ld hl,_invert
cp K_F1
- cal z,undo_invert
- cp K_F2
cal z,do_invert
+ cp K_SECOND
+ jr z,start_tha_freakin_game
cp K_ENTER
jr nz,menuloop
+start_tha_freakin_game:
ld a,(menuitem)
dec a
- cal nz,New_game
- jp samelevel ;game_main_loop
+ cal nz,New_game ;NEW GAME
+ jp samelevel ;CONTINUE: game_main_loop
menuexit:
ld hl,0
ld (menuitem),a
jr menuloop
-do_invert:
- ld (hl),$2F ;cpl
- ret
-undo_invert
- ld (hl),$B7 ;or a
+do_invert: ;invert screen (b<>w); destr:b
+ psh hl
+ ld b,a ;psh a
+ ld hl,_invert
+ ld a,$98
+ xor (hl) ;$2F (cpl) <-> $B7 (or a)
+ ld (hl),a
+ ld a,b ;pop a
+ pop hl
ret
;----------------------------------------------------------------------------
game_main_loop: ;REPEATS FROM HERE EVERY FRAME
ld hl,timer ;update time
inc (hl) ;increase by 1
- jr nz,Clear_screen ;continue when new time <> 0
- ld hl,1 ;once every 256 frames, increase score by 1
- cal scoreInc ;do it
+ ld a,(hl)
+ and %11111
+ ld hl,1 ;once every 32 frames, increase score by 1
+ cal z,scoreInc ;do it
Clear_screen:
ld hl,GRAPH_MEM ;move from (hl) = top left
bit 5,a ;test bit 5 = 2nd-key = FIRE
ld hl,check_selkey ;where to continue after executing Fire_bullet
psh hl ;push hl on stack (instead of cal Fire_bullet)
- jp z,Fire_bullet ;fire smtn (bulletstorplasermultiples+stuff..)
+ 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
cal Handle_bullets ;move your bullets + check for hits
cal Enemy_bullets ;move enemy bullets
- cal Handle_torp ;the same for your torpedo (assuming u have 1)
cal Level_event ;insert enemies
cal Display_Screen ;display all
+ ld b,1
+___:
halt ;delay
+ dnz ___
jp game_main_loop ;LOOP ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
inc_weapdamage:
jr z,ground_tunnel ;tunnel effect
ground_boring:
ld a,(groundpos) ;type 0
+ jr newground+1
ground_tunnel:
ld a,(groundpos+14)
ld d,a
ld hl,spacespace
-
- ld bc,$201 ;range=1..3
- cal Random ;a=1-3
- dec a
- jr z,newground ;same if a=1
- dec a
- jr z,gtunneldown ;down if a=2
-gtunnelup: ;up if a=3
- ld a,(hl)
+ ld bc,$500 ;range=0..4
+ cal Random ;a=0..4
+ dec a ;a=-1..3
+ dec a ;a=-2..2
+ ld b,a
+ add a,(hl) ;add to spacesize (so +2..-2)
+ cp 10
+ jr c,newground ;>=0 then don't change
+ ld c,a
+ ld a,d
+ add a,b ;new position
or a
- jr z,newground ;a>=0 (a=0 actually)
- inc (hl)
- inc d
- jr newground
-gtunneldown:
- ld a,1
- cp d
- jr z,newground
- dec d
- dec (hl)
+ jr z,newground ;may not be 0 (=256)
+ cp -10
+ jr nc,newground ;and not be <0 (>246)
+diffground:
+ ld d,a
+ ld (hl),c
newground:
ld a,d
ld (groundpos+15),a ;save new byte on the right
ld b,16 ;display width = 16 bytes (16*8bits=256pixels)
displaytloop:
ld a,(hl) ;copy byte from (hl)
-_invert:
- cpl ;xor $ff: invert byte (white<=>black)
+_invert: ;SMC: cpl <-> or a
+ cpl ;xor $ff: invert byte (white<=>black)
ld (de),a ;to (de)
inc hl \ inc de ;next byte
dnz displaytloop ;16x hl >> de
dec c ;next line
- jr nz,displayloop ;loop 64x
+ jr nz,displayloop ;loop 56x
+
+ ld hl,time2invert
+ ld a,(hl)
+ or a ;(time2invert)=0:
+ jr z,noinvert ; do nothing
+ dec a ;otherwise decrease
+ cal z,do_invert ;if it became 0 then invert
+ ld (hl),a ;save new value
+noinvert:
ld hl,$396b ;Display Score
ld (_penCol),hl ;bottom right of screen
inc a ;no! next (explosion)frame
ld (your_occ),a ;save
- cp 34 ;last explosion frame?
+ cp 64+1 ;last explosion frame? (1-16=1st;49-64=4th)
jp c,exploding_you ;not yet: display explosion
- cp 40 ;delay finished?
+ cp 64+16 ;delay finished?
jp z,You_die ;yes = game over
ret ;don't display anything
no_up: ld e,(hl) ;e=y
ld ix,spr_ship01 ;normal ship sprite
+your_shipspr =$-2
ld hl,your_inv ;invulnerable?
ld a,(hl) ;load time in a
or a ;is it 0?
and %00000100 ;a switches 0<->1 every 2 frames
jr z,disp_ship ;show normal ship
inv_flicker:
- ld ix,spr_ship01i ;display invulnerable ship
+ ld bc,spr_ship01i-spr_ship01
+ add ix,bc ;display invulnerable ship
disp_ship:
cal safeputsprite ;display your ship; save de
exploding_you:
srl a ;half the framerate
- dec a ;first frame is 1>inc>srl>dec = 0
+ srl a ;half that framerate
+ srl a ;and half again that framerate
ld hl,x-1
+ ld ix,spr_yexplosion ;base sprite
-explosion_stuff: ;in:a=frame*2+(0 to 1); (hl)=xpos--
+explosion_stuff: ;in:a=frame*2+(0 to 1); (hl)=xpos-- ix=sprite
and %11111110
add a,a
add a,a ;frame*8
ld c,a
ld b,0 ;bc=a
- ld ix,spr_explosion ;base sprite
add ix,bc ;go to correct sprite (each spr. is 8 bytes)
inc hl
ld d,(hl) ;load xpos
;----hit----
damage_you: ;damages you B points
- ld a,(your_inv) ;invulnerability left?
+ ld a,(your_inv) ;shield left?
or a
- ret nz ;return if inv>0
+ jr z,dothadamage ;no shield
+ srl b ;shield: half the damage
+dothadamage:
+ ld hl,time2invert
+ xor a ;a=0
+ cp (hl) ;no already inverted?
+ cal z,do_invert ;then invert screen
+ ld a,2
+ ld (hl),a ;change back 2 frames from now
+
ld hl,your_armor ;armor left
ld a,(hl) ;load hp in A
sub b ;decrease hp by B
;------------------------- select upgrade -----------------------------------
+inc_armor:
+ ld a,(your_armor) ;load current armor
+ cp 25-6 ;may not become >=25
+ jr c,doincarmor ;ok then just add 6
+ ld a,24-6 ;set to maximum (6 will be added below)
+doincarmor:
+ add a,6 ;add 6 to armor
+ ld (your_armor),a ;change armor
+
select:
ld hl,your_pickup ;select pickups
ld a,(hl) ;load pickups taken so far
ret m ;return if it's 0 (no pickups)
jr nz,select2 ;no, carry on
select1:
- ld a,(your_armor) ;load current armor
- cp 25-6 ;may not become >=25
- jr c,select1_ ;ok then just add 6
- ld a,25-6 ;set to maximum (6 will be added below)
-select1_:
- add a,6 ;add 6 to armor
- ld (your_armor),a ;change armor
- xor a ;ld a,0
- ld (your_pickup),a ;reset pickups
+ ld (hl),a ;reset pickups
+ cal inc_armor
jp disp_icons ;display and return
select2:
dec a ;is it 2?
jr nz,select3 ;no, carry on
ld (hl),a ;reset pickups
inc a ;a=1
- ld (torp_occ),a ;ready torpedoes
+ ld (your_tail),a ;ready tail beam
jp disp_icons ;display 'n return
select3:
dec a ;is it 3?
ld hl,your_weapon
ld a,(hl)
inc a
- cp maxnrweapons
+ cp maxweapon
jp nc,disp_icons ;weapon maxed out
ld (hl),a ;set new weapon
cal loadweapon ;load it (damage and stuff)
dec a ;is it 4?
jr nz,select5 ;no, carry on again
ld (hl),a ;reset pickups
- inc a ;a=1
- ld (your_weapon),a ;ready laser
+ ld hl,your_weapon
+ ld a,(hl)
+ cp maxweapon ;upgrade from bullet
+ jr nc,upgradelaser ;nope, just upgrade
+ ld a,maxweapon-1 ;yes, set laser #1
+upgradelaser:
+ inc a ;next laser
+ cp maxlaser
+ jp nc,disp_icons ;laser maxed out
+ ld (hl),a
+ cal loadweapon
jp disp_icons ;display + return
select5:
dec a ;is it 5?
inc (hl) ;otherwise increase counter (0 to 4 >> 1 to 5)
ld a,(your_weapon) ;if you have bullets.....
- dec a ;(1=laser)
- jr z,fireOK
+ cp maxweapon
+ jr nc,fireOK ;>weapons = laser
ld (hl),5 ;.....then can't fire next turn (go to 5 imm.)
fireOK:
;blast again and <ret>
fireany: ;HL=(x,y)
ld (firex),hl ;set position to fire from
- cal fire_torp ;&&&
-
- ld a,(your_weapon) ;do you have laser?
- ld ix,weapondata-6-(256*3)
+ 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)
+ ld b,3 ;go to current weapon (bc=a), b=3 :P
add ix,bc
fire_weapon: ;b=3
psh bc ;save counter
ld a,(ix) ;load this weapon
- cp %11110000 ;%11110000=laser
+ cp %11100000 ;%11110000=laser
cal z,fire_laser ;fire laser (will set a=0 when done)
or a ;<>0=bullet
cal nz,fire_ybullet
inc ix
pop bc ;weapon counter (do 3 weapons)
dnz fire_weapon
- ret
+
+fire_tail:
+ ld hl,your_tail
+ ld a,(hl)
+ dec a
+ ret nz
+ ld a,(ix-2) ;last weapon fired
+ 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 LASER-----
pop de ;de=(firex): x-pos unmodified
check_laserhits: ;de = (x,y)
+ psh ix
ld b,nrenemies ;check all enemies
ld hl,enemies+1 ;enemy#1+occ/hp00
laserhits: ;hits with normal enemies
ld a,(hl)
or a ;enemy #0 = pickup
jr z,nolashit ;yes: don't destroy
+
+ cal find_sprite ;ix=sprite to enemy (hl)
inc hl
ld a,(hl) ;check x
sub d
sub e
jr z,enemy_lashit ;a-e=0 = laser on top line of enemy = hit
jr nc,nolashit ;a-e>0 = enemy above laser = no hit
- add a,5 ;add enemy height&&&
+ dec a ;minus one
+ add a,(ix+1) ;add enemy height (according to sprite @ix)
jp m,nolashit ;a-e>0 = hit
enemy_lashit:
ld a,(curweapdamage) ;damage
dnz laserhits ;check all enemies
xor a ;a=0 otherwise weird things might happen :P
ld (weapincs),a ;reset damage
- ret
-
-;-----misc-----
-
-fire_torp:
- ld de,(firex)
- ld hl,torp_occ ;torpedo...
- ld a,(hl) ;load torpInfo
- dec a ;do you have (unused) torpedoes?
- ret nz ;nope (a must be 1)
- ld (hl),2 ;yes; use torpedo
- ld (torp_pos),de ;save torpedo position (in de)
+ pop ix
ret
;-----fire BULLETs-----
-fire_ybullet:
+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
jr z,found_ybullet ;0 = no bullet here
add hl,de
dnz find_ybullet ;look next bullet
- pop hl ;don't try to fire any other bullets
- ret ;so ret twice
+ ret ;none found, return don't fire
found_ybullet:
ld (hl),c ;use the bullet and set correct bullet-type
bullet_left:
ld c,a ;c=type
- and %1111
- ld b,a ;b=0000type
-
- ld a,128
- cp (hl) ;off screen? (x>=128)
- jr c,remove_bullet
- ld a,(hl) ;a = X
- add a,b ;move b to the right
+ and %11111 ;pixels to move
+ add a,(hl) ;a = X + (hl) to the right
+ sub 16 ;and 16 to the left (so -16..+15)
+ jr c,remove_bullet ;remove if x<0
+ cp 128
+ jr nc,remove_bullet ;or x>=128
ld (hl),a ;save new pos.
ld d,a ;d = X
inc hl ;@y-pos
ld a,c
- cal _shracc
+ cal _shracc ;%11110000->1111
+ srl a ;%1110->111
dec a
- jr z,bullet_noymove
+ jr z,bullet_noymove ;1=straight forward
dec a
- jr z,bullet_up
+ jr z,bullet_up ;2=up
dec a
- jr z,bullet_halfup
+ jr z,bullet_halfup ;3=1/2up
dec a
- jr z,bullet_down
+ jr z,bullet_down ;4=down
-bullet_halfdown:
+bullet_halfdown: ;5=1/2down
ld a,(timer)
and 1
jr z,bullet_noymove
dec hl ;@x
dec hl ;@damage
ld a,(hl) ;bullet damage=size
- ld hl,XLbullettable ;pointer to first bullet
+ ld hl,bullettable ;pointer to first bullet
srl a
srl a ;per 4
ld d,0
ld hl,1 ;increase score by one
jp scoreInc ;+ret
-;--------------------------- handle torpedo ---------------------------------
-
-Handle_torp:
- ld a,(torp_occ)
- sub 2
- ret m ;return if occ=0/1
-
- ld hl,torp_pos ;x-position
- ld a,(hl) ;load in a
- inc a ;move right
- cp 125 ;right edge reached
- jr nc,remove_torp ;remove if x>125
- ld (hl),a ;save new x
- ld d,a
-
- inc hl ;y-position
- ld a,(hl)
- inc a ;move down
- cp 56 ;bottom reached
- jr nc,remove_torp ;remove if y>40
- ld (hl),a ;save new y
- ld e,a
-
- ld ix,spr_bullett1
- cal safeputsprite ;display torpedo
- jp check_bullethits ;check for hits with enemies
-
-remove_torp:
- ld a,1
- ld (torp_occ),a
- ret
-
;--------------------------- level events -----------------------------------
Level_event:
or a ;has it reached zero?
ret nz ;nope: get outta here!
- ld a,0 ;enemy frequency (lvl)
-eventtime =$-1
+ ld bc,0 ;enemy frequency (lvl)
+eventtime =$-2
+ cal Random
ld (nextevent),a ;set time to next event
ld hl,eventleft
dec (hl) ;update enemy-counter
ld (hl),123 ;set delay
ret ;don't place any more enemies
-place_boss:
- ld a,1
- ld (nrlvlenemies),a ;just one enemy: the BOSS
- ld hl,(levelp) ;the leveldata (including the boss)
- dec hl ;points to leveldata\boss\enemynr
- ld a,(hl) ;load it
- ld (lvlenemies),a ;set new enemy (boss)
- dec hl ;points to level\boss\movement
- ld a,(hl) ;load
- ld (level_move),a ;set boss movement
- jp do_event ;+ret
-
standby_event:
ld b,nrenemies
ld hl,enemies+1-enemysize
ret
+place_boss:
+ ld a,1
+ ld (nrlvlenemies),a ;just one enemy: the BOSS
+ ld hl,(levelp) ;the leveldata (including the boss)
+ dec hl ;points to leveldata\boss\enemynr
+ ld a,(hl) ;load it
+ ld (lvlenemies),a ;set new enemy (boss)
+
do_event:
ld hl,enemies+1-enemysize
ld bc,enemysize
ldi ;set hp64
ldi ;set hitpoints+occ of enemy class
ldi ;set enemy class (nr)
-
- ld a,128 ;appear at right edge of screen
- ld (de),a ;= x-position (save)
- inc de ;@y-pos
+ ldi ;set x-position
ld a,(hl) ;load placeInfo
inc hl
ypos_OK: ;random value successfully created
ld (de),a ;save y-position
inc de ;@movecounter
-
+ ldi ;set move-type
ld a,1 ;movecounter = 1
ld (de),a ;set
inc de ;@firecounter
-
ldi ;set time-to-1st-fire
ldi ;set firefreq
ret ;return
jr z,next_enemy ;occ "no enemy" 0
dec a
jr z,exploding_enemy ;occ "exploding" 1
- ld b,a ;b=2 if moving, otherwise b=1
-normal_enemy: ;occ "normal" 2 or "moving" 3
+normal_enemy:
inc hl
ld c,(hl) ;c = enemy type = de
cal find_sprite
inc hl
- ld a,(hl) ;x
- dec a ;move left
- ld d,a
- bit 7,d ;x<0
- jr z,enemy_onscreen
- cp -7 ;x<=-8
- jr c,remove_enemy ;=off screen
-enemy_onscreen:
+ ld d,(hl) ;x
inc hl
ld e,(hl) ;y
- ld a,b ;moving state was stored in b earlier
- dec a ;is it 1?
- cal nz,moving_enemy ;2 = moving enemy
- ld (hl),e
+ inc hl ;@movetype
+ cal moving_enemy
+ dec hl
+
+ ld a,d ;new x value
+ cp 128 ;x<128
+ jr c,enemyonscreen ;=on screen
+ cp -7 ;x<=-8
+ jr c,remove_enemy ;=off screen
+enemyonscreen:
+
+ ld (hl),e ;store new y
dec hl ;@x
ld (hl),d ;store new x
ld a,c ;a = enemy type
check_enemyfire:
inc hl ;@y
+ inc hl ;@movetype
inc hl ;@movecount
inc hl ;@firecount
dec (hl) ;decrease counter till next blast
jr z,remove_enemy ;remove when at last frame
inc a
ld (hl),a ;next frame
+ dec a ;1-16 -> 0-15
+ ld ix,spr_explosion ;base sprite
cal explosion_stuff ;display explosion
jr next_enemy
;--------------------------- moving enemies ---------------------------------
moving_enemy:
- ld a,(level_move)
+ 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
and a
- jr z,movetype_updown ;type 0
+ ret z ;type 0 = don't move
dec a
- jr z,movetype_vslow ;1
+ jr z,movetype_updown ;1 = up / down
dec a
- jr z,movetype_fast ;2
+ jr z,movetype_vslow ;2 = 1/4 speed
dec a
- jr z,movetype_vfast ;3
+ jr z,movetype_slow ;3 = 1/2 speed
dec a
- jr z,movetype_smart ;4
+ jr z,movetype_fast ;3 = 1.5x speed
dec a
- jr z,movetype_lure ;5
+ jr z,movetype_vfast ;4 = 2x speed
dec a
- jr z,movetype_slowlure ;6
+ jr z,movetype_smart ;5
dec a
- jr z,movetype_stoplure ;7
+ jr z,movetype_lure ;6 = move y towards you
+ dec a
+ jr z,movetype_slowlure ;7 = lure 1/2 speed
+ dec a
+ jr z,movetype_stoplure ;8 = slowlure; stop at x=99
; dec a
-; jr z,movetype_fulllure ;8
+; jr z,movetype_fulllure ;9 = x+y towards you 1/2 speed
movetype_fulllure:
- inc d
ld a,(timer)
and 1
ret z
cp d
jr c,movetype_slowlure
inc d ;x<100: full stop
- jr movetype_slowlure
-
movetype_slowlure:
ld a,(timer)
and 1
ret z
-
movetype_lure:
ld a,(y)
cp e
and %11111100
jr z,movetype_fast
+movetype_slow:
+ ld a,(timer)
+ and %1
+ ret z
movetype_vslow:
ld a,(timer)
and %11
inc a ;set z-flag if a = $ff
jr nz,dostory ;otherwise loop
- ld bc,3+1 ;story ends
+ ld bc,2+1 ;story ends
add hl,bc ;set hl to beginning of the level
ld (levelp),hl ;set the level-pointer
ret ;and return
xor a ;blank line mask
cal drawline ;clear scorebar
- cal disp_lives
+disp_lives:
+ ld de,5 ;(0,5)
+ ld a,(your_lives) ;nr of lives
+ or a
+ jr z,displivesdone ;no lives
+ ld b,a
+displivesloop:
+ psh bc
+ ld ix,spr_lship
+ cal safeputsprite ;put li'l ship
+ ld a,lshipsize+1
+ add a,d
+ ld d,a ;x=x+5
+ pop bc
+ dnz displivesloop ;one ship per life
+displivesdone:
ld ix,spr_icon01 ;armorIcon
ld de,$1901 ;icon #1
cal disp_armor ;display bar
ld ix,spr_icon00
- ld a,(torp_occ)
+ ld a,(your_weapon) ;ur weapon
+ cp maxweapon ;laser?
+ psh af ;(your_weapon)
+ jr nc,no_tail ;if laser (nc) then tail ain't fired
+ ld a,(your_tail)
or a
- jr z,no_torp
- ld ix,spr_icon02 ;torpedoIcon
-no_torp:
+ jr z,no_tail
+ ld ix,spr_icon02 ;tailbeamIcon
+no_tail:
ld de,$2901 ;icon #2
cal putwidesprite ;display
ld ix,spr_icon00
- ld a,(your_weapon) ;ur weapon
- dec a ;1=laser
- jr z,no_bullets
+ pop af ;a=(your_weapon); cf=bullets
+ psh af
+ jr nc,no_bullets ;=laser
ld hl,$3945 ;position to display bullet-type digit
- ld a,(your_weapon) ;digit
- dec a ;minus one (1=laser)
+ pop af ;digit=(your_weapon)
+ psh af
+ inc a ;1 = weapon #1 (=0)
ld (_penCol),hl ;set location
add a,'0' ;make digit
cal _vputmap ;display char
cal putwidesprite ;display icon
ld ix,spr_icon00 ;emptyIcon
- ld a,(your_weapon)
- dec a
- jr nz,no_laser
+ pop af ;ld a,(your_weapon)
+ ld b,a
+ jr c,no_laser ;popped carry
+ ld hl,$3955 ;position to display bullet-type digit
+ ld (_penCol),hl ;set location
+ ld a,b ;(your_weapon) ;load = faster than push
+ sub maxweapon-1 ;1 = laser #1 (=maxweapon)
+ add a,'0' ;make digit
+ cal _vputmap ;display char
ld ix,spr_icon04 ;laserIcon
no_laser:
ld de,$4901 ;icon #4
ret
disp_armor:
+ ld de,16 ;line size
ld hl,(57*16)+VIDEO_MEM+3
ld b,3
armorbarclr:
dec hl
ld (hl),0
+ add hl,de
+ ld (hl),0
+ sbc hl,de
dnz armorbarclr
- ld a,(your_armor) ;load your armor
+ ld a,(your_armor) ;load your armor (<25)
ld c,a ;psh a
srl a ;/2
srl a ;/4
ld b,a ;loop b=a times
armorbar: ;starting at ($39*16)+VIDEO_MEM
ld (hl),%11111111 ;draw a piece of the bar
+ add hl,de ;one down (resets carry)
+ ld (hl),%11111111 ;same piece
+ sbc hl,de ;up again
inc hl ;next position
dnz armorbar ;loop it b times
dnz armorbarbit ;repeat B times (so if B=6 then a=%11111100)
armorbarready: ; (an if B=3 then a=%11100000)
ld (hl),a ;draw this last byte
+ add hl,de
+ ld (hl),a ;and just below
ret
disp_charge:
- ld hl,(58*16)+VIDEO_MEM+3
+ 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)
chargebar: ;starting at ($39*16)+VIDEO_MEM
ld (hl),%11111111 ;draw a piece of the bar
inc hl ;next position
- dnz armorbar ;loop it b times
+ dnz chargebar ;loop it b times
nochargebar:
ld a,c ;pop a
and %111 ;display last bits of chargebar
ld (hl),a ;draw this last byte
ret
-disp_lives:
- ld hl,$3A00 ;display Lives
- ld (_penCol),hl ;bottom left
- ld hl,savestr+2
- ld (hl),'L'
- inc hl
- ld (hl),'x'
- inc hl
-
- ld a,(your_lives) ;nr of lives in a
- add a,'0' ;make digit
- ld (hl),a
- dec hl \ dec hl
- jp _vputs ;display on screen +ret
-
;--------------------------- proc -------------------------------------------
Random: ;a=c<random<b+c; destr:none
- ld a,r
- add a,0 ;increase last value by 0-255 (r)
-ranseed =$-1
- ld (ranseed),a ;save for next time
- cp b ;a>=b
- jr nc,Random ;then add again
+ psh hl
+ ld hl,rancount ;amount to increase with (0-255)
+randomloop:
+ inc (hl) ;change for next time
+ ld a,r ;value $0-7F (can be _anything_ so watch out!)
+ add a,0 ;add to last random value
+ranseed =$-1 ;SMC :P
+ add a,(hl) ;add the changing increase value
+ ;(this is because R can be anything;
+ ; ie always be even so freeze when a must be 1<=a<=1)
+ ld (ranseed),a ;save for next time
+ cp b ;a>=b
+ jr nc,randomloop ;then add again
add a,c ;a<b; a=a+c
+ pop hl
ret
+rancount: .db 0
RandomY: ;HL = random Y 0..50 right side ((1..51)*16-1)
psh bc
- ld bc,1+50*256 ;range=1..51
+ ld bc,50*256+1 ;range=1..51
cal Random ;a = 1..51
ld h,0
ld l,a ;hl = 1..51
cal _getkey ;wait for keypress
jp quit ;restore some things and return to TI-OS/shell
+invship: ;procedure used in New_game
+ psh af
+ inc b
+ ld de,$C0
+ ld hl,VIDEO_MEM+$30-$C0;begin pos
+invshipinit:
+ add hl,de
+ dnz invshipinit
+ ld b,$B0 ;12 lines down
+invshiploop:
+ ld a,(hl)
+ cpl ;invert byte
+ ld (hl),a
+ inc hl
+ dnz invshiploop ;loop
+ pop af
+ ret
+
New_game: ;stack must be +1 (so change the jp in cal :)
+ cal _clrLCD
+ ld hl,VIDEO_MEM
+ ld (PutWhere),hl ;will be reset after displaying iconbar
+ ld ix,spr_ship01 ;first ship: sprite
+ ld de,$0105 ;position
+ ld b,4 ;number of ships to display
+dispshipsloop:
+ psh bc ;counter
+ psh de ;position
+ cal putwidesprite ;display
+ pop de
+ ld bc,spr_ship01i-spr_ship01+2
+ add ix,bc ;go to next ship
+ ld a,12 ;below the previous one
+ add a,e
+ ld e,a
+ pop bc
+ dnz dispshipsloop ;loop
+
+ ld b,0 ;menu pos.
+selectship:
+ psh bc
+ cal invship
+selectshiploop:
+ halt
+ cal GET_KEY
+ or a
+ jr z,selectshiploop
+ pop bc
+ psh bc
+ cal invship
+ pop bc
+ cp K_SECOND
+ jr z,startthenewgame
+ cp K_ENTER
+ jr z,startthenewgame
+ cp K_DOWN
+ jr nz,selnotdown
+ inc b
+selnotdown:
+ cp K_UP
+ jr nz,selnotup
+ dec b
+selnotup:
+ ld a,b
+ and %11
+ ld b,a
+ jr selectship
+
+startthenewgame:
+ ld hl,spr_ship01-(spr_ship02-spr_ship01)
+ ld de,spr_ship02-spr_ship01
+ inc b ;your ship #0-3++
+searchyourship:
+ add hl,de ;next ship
+ dnz searchyourship
+ ld (your_ship),hl
xor a ;ld a,0
ld (your_score),a ;reset score
ld (your_score+1),a ;reset score (0)
- ld (torp_occ),a ;no torpedoes
+ ld (your_tail),a ;no tail beam
ld (your_weapon),a ;no laser
ld (your_pickup),a ;reset pickups
ld (your_multiples),a ;no multiples
ld (level),a ;reset level nr (#1)
ld hl,level00 ;set level pointer to level#1
ld (levelp),hl ;reset level pointer
- inc a ;ld a,2
- ld (your_weapon),a ;default weapon
ld a,4
ld (your_lives),a ;3 lives (4 will be decreased @ You_die)
ld (pickuptimer),a ;next pickup after 4 enemies destroyed
Next_level: ;stack must be +1
pop hl
- ld a,(your_armor) ;load current armor
- cp 25-8 ;may not become >=25
- jr c,addok ;ok then just add 8
- ld a,25-8 ;set to maximum (8 will be added below)
-addok:
- add a,8 ;add 8 to armor
- ld (your_armor),a ;change armor
+ cal inc_armor ;increase armor
ld hl,level ;level number
ld a,(hl)
inc a
ld b,0 ;advance one level
ld c,(hl)
add hl,bc ;passed the enemies
- ld c,1+6+32+4
+ 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 a,80
ld (nextevent),a ;time to first enemy appearance
ld de,lvlenemies ;table of enemies
ldir ;load enemies to table
ld a,(hl) ;load new appearance-time
- ld (eventtime),a ;set
+ ld (eventtime),a
+ inc hl
+ ld a,(hl)
+ ld (eventtime+1),a ;set
inc hl
ld a,(hl) ;load nr of enemies in this level
ld (eventleft),a ;set nr of events left
ld (x),de ;begin position (x,y)
cal Place_multiples ;place all multiple-positions at that (0,24)
- ld a,(torp_occ)
- or a ;no torpedoes?
- jr z,torpsclear ;then just continue (=0)
- ld a,1 ;if so, set to "ready to fire" (=1)
-torpsclear:
+ cal loadweapon ;load (your_weapon)
ld hl,enemies ;remove all enemies and bullets
ld (hl),0 ;clear first byte
add a,a ; *8
ld c,a
ld b,0
- ld hl,weapondata-16
+ ld hl,weapondata
add hl,bc
ld a,(hl)
ld (weapdamage),a ;damage of bullets
;b=5: a=%00000111
;b=6: a=%00000011
;b=7: a=%00000001
- res 7,d ;subtract 128, if X was -1 (255) it is now 127
+ res 7,d ;X+128 (right side of screen)
dec e ;Y--
jr CSdisplay ;done clipping
;--------------------------- putbigsprite -----------------------------------
putwidesprite:
+;destr: abcdehl+ix (ix=behind sprite; hl:a=right below sprite; b=0; d=width)
ld a,(ix) ;width
cp 9
jr c,putsprite ;width<=8: just draw the sprite
psh de
cal _putsprite ;otherwise draw one column (8 pixels wide)
pop de
- inc ix
+ inc ix ;no x-size to load
ld a,8 ;next
add a,d ;8 pixels right
ld d,a
pop bc ;then draw the remaining pixels (c=width-8)
+ ld c,b
jr _putsprite
safeputsprite: ;cal putsprite with de intact
spr_ship01:
.db 7,7 ;ship alpha class
- .db %01111000 ; ████
- .db %11100000 ;███
- .db %01111100 ; █████
- .db %11110010 ;████ █
- .db %01111100 ; █████
- .db %11100000 ;███
- .db %01111000 ; ████
+ .db %11000000 ;██
+ .db %11110000 ;████
+ .db %01111110 ; ██████
+ .db %11101000 ;███ █
+ .db %01111110 ; ██████
+ .db %11110000 ;████
+ .db %11000000 ;██
spr_ship01i:
.db 8,7
- .db %01111010 ; ████ █
- .db %11100001 ;███ █
- .db %01111101 ; █████ █
- .db %11110011 ;████ ██
- .db %01111101 ; █████ █
- .db %11100001 ;███ █
- .db %01111010 ; ████ █
+ .db %11000010 ;██ █
+ .db %11110001 ;████ █
+ .db %01111111 ; ███████
+ .db %11101001 ;███ █ █
+ .db %01111111 ; ███████
+ .db %11110001 ;████ █
+ .db %11000010 ;██ █
spr_ship02:
.db 7,7 ;ship beta class
.db %00100100 ; █▒ █
spr_yexplosion:
- .db 8,6 ;8
- .db %00000000 ;
- .db %00000000 ;
- .db %00000000 ;
- .db %00000000 ;
- .db %00000000 ;
- .db %00000000 ;
+ .db 8,5 ;1
+ .db %00000000
+ .db %00101100 ; █ ██
+ .db %00011110 ; ████
+ .db %00110100 ; ██ █
+ .db %00011000 ; ██
+ .db %00000000
+
+ .db 8,5 ;2
+ .db %00111000 ; ███
+ .db %01011100 ; █ ███
+ .db %10010111 ;█ █ ███
+ .db %01000110 ; █ ██
+ .db %00111000 ; ███
+ .db %00000000
+
+ .db 8,6 ;3
+ .db %00111100 ; ████
+ .db %01001111 ; █ ████
+ .db %10100011 ;█ █ ██
+ .db %11000110 ;██ ██
+ .db %01110101 ; ███ █ █
+ .db %00111000 ; ███
+
+ .db 8,6 ;4
+ .db %00110110 ; ██ ██
+ .db %00000101 ; â–ˆ â–ˆ
+ .db %11000001 ;██ █
+ .db %01100001 ; ██ █
+ .db %11000010 ;██ █
+ .db %01010001 ; â–ˆ â–ˆ â–ˆ
;--------------------------------- bullets ----------------------------------
.db %11110000 ;████▒
.db %01100000 ; ██▒
-XLbullettable:
+bullettable:
.db (spr_bullet01-spr_bullet01) ;0
.db (spr_bullet02-spr_bullet01) ;4
.db (spr_bullet03-spr_bullet01) ;8
.db (spr_bullet13-spr_bullet01) ;56
.db (spr_bullet13-spr_bullet01) ;60
-;format:[min.damage] [dam.inc] [0000:direction 0000:speed] [offset]
+;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)
+;direction: 0=straight forward; 1=up; 2=1/2up; 3=down; 4=1/2down
+
maxnrweapons = 8+1
weapondata:
- .db 1,1,%11110000,0,%11110000,6,%00000000,0 ;LASER
- .db 1,1,%00000010,3,%00000000,0,%00000000,0 ;single fire
- .db 3,1,%00000011,3,%00000000,0,%00000000,0 ;fast single
- .db 1,1,%00000010,0,%00000010,6,%00000000,0 ;double
- .db 1,1,%00010010,2,%00110010,2,%01000010,2 ;triple
- .db 3,2,%00010011,2,%00110011,2,%01000011,2
- .db 5,3,%00010011,2,%00110011,2,%01000100,2
- .db 7,4,%00010100,2,%00110100,2,%01000100,2
- .db 12,5,%00010110,2,%00110110,2,%01000110,2
+ .db 1,1,%00000000,0,%00000000,0,%00010010,3 ;1 single fire
+ .db 6,1,%00000000,0,%00000000,0,%00010011,3 ;2 fast single
+ .db 1,1,%00000000,0,%00010010,0,%00010010,6 ;3 double
+ .db 1,1,%01110010,2,%10010010,2,%00110010,2 ;4 triple
+ .db 3,2,%01110011,2,%10010011,2,%00110011,2 ;5
+ .db 5,3,%01110011,2,%10010100,2,%00110011,2 ;6
+ .db 7,4,%01110100,2,%10010100,2,%00110100,2 ;7
+ .db 12,5,%01110110,2,%10010110,2,%00110110,2 ;8
+maxweapon = 8
+ .db 1,1,%00000000,0,%00000000,0,%11100000,3 ;1 single laser
+ .db 1,1,%00000000,0,%11100000,0,%11100000,6 ;2 double laser
+ .db 1,1,%11100000,0,%11100000,6,%11100000,3 ;3 triple laser
+maxlaser = 11
collidedamage = 4
;------------------------------------ bar -----------------------------------
+spr_lship:
+ .db 5,3
+ .db %11100000
+ .db %01111000
+ .db %11100000
+lshipsize = 5
+
spr_icon:
.db 16,7 ;selected .......:.......:
.db %11111111 ; ████████████████
.db %00001100
.db %11110000
spr_icon02:
+ .db 16,7 ;tailbeam .......:.......:
+ .db %10000000 ; â–ˆ
+ .db %10000011 ; █ ██
+ .db %10000001 ; █ ███
+ .db %10111011 ; █ ███ ██████ ██
+ .db %10000001 ; █ ███
+ .db %10000011 ; █ ██
+ .db %10000000 ; â–ˆ
+ .db 7
+ .db %00000000
+ .db %00000000
+ .db %11000000
+ .db %11110011
+ .db %11000000
+ .db %00000000
+ .db %00000000
+spr_icon02b:
.db 16,7 ;torpedo .......:.......:
.db %10111000 ; █ ███ █ █ █
.db %10011100 ; █ ███ █ █ █
spr_icon04:
.db 16,7 ;laser .......:.......:
.db %10000000 ; â–ˆ
- .db %10110010 ; █ ██ █ █
- .db %10111011 ; █ ███ ██
- .db %10011101 ; █ ███ █████████
- .db %10111011 ; █ ███ ██
- .db %10110010 ; █ ██ █ █
+ .db %10001010 ; â–ˆ â–ˆ â–ˆ â–’â–’â–’
+ .db %11101100 ; ███ ██ ▒▒▒
+ .db %11110111 ; ████ ███████▒▒▒█
+ .db %11101100 ; ███ ██ ▒▒▒
+ .db %10001010 ; â–ˆ â–ˆ â–ˆ â–’â–’â–’
.db %10000000 ; â–ˆ
.db 7
.db %00000000
- .db %10000000
+ .db %00000000
.db %00000000
.db %11111111
.db %00000000
- .db %10000000
+ .db %00000000
.db %00000000
spr_icon05:
.db 16,7 ;multiple .......:.......:
txt_email: .db "www.shiar.org ",127 ;title screen
.db " shiar0@hotmail.com",0
_txt_email = $3A01 ;$3A1E=just email
-txt_about: .db " v0.97.625 ",127," by Shiar",0 ;right behind txt_email
-_txt_about = $331F
+txt_about: .db "v0.97.73 ",127," by Shiar",0 ;right behind txt_email
+_txt_about = $3321
txt_menu1: .db "NEW GAME",0
txt_menu2: .db "CONTINUE",0
txt_hiscore: .db "Hiscore",0
txt_pressenter: .db "Enter to continue",0 ;pause
-txt_teacher: .db "(2",Lpi,"*.95)/sin 13",0 ;boss
-txt_teacherans: .db Lneg,"14.2063168184",0
+txt_teacher: .db "(2",Lpi,"*.97)/sin 13",0 ;boss
+txt_teacherans: .db Lneg,"14.5053971725",0
;---------------------------- save data -------------------------------------
storehi_start:
-hiscore .dw $0000
-hiname .db "Shiar.97",0
+hiscore .dw 0
+hiname .db "shiar.97",0
storehi_end:
storesave_start:
level .db $01 ;level number
levelp .dw level01 ;pointer to level data
pickuptimer .db $04 ;counts when to place a pickup
-your_score .dw $0000
+your_ship .dw spr_ship01 ;your sprite
+your_score .dw $0000 ;current score
your_pickup .db $04
your_occ .db $00 ;0=normal 1..16=exploding
your_armor .db $0a ;HP left
your_lives .db $03 ;
-your_weapon .db $02 ;weapon: 0=no, 1=laser, 2+=bullet n+1
+your_weapon .db $00 ;current weapon upgrade
your_multiples .db $00 ;multiples present
-torp_occ .db $00 ;torp.state: 0=unavail 1=avail 2=presnt
-torp_pos .dw $0000 ;torpedo position (x,y)
+your_tail .db $01 ;tail beam present
storesave_end:
+time2invert: .db 0 ;time until b<>w switch (0 at startup)
;XLlevelsdata:---------------------------------------------------------------
+;format:boss: [moveType] [enemyType]
+; @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]
+;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,"the Nemesis saga continues",0,1
- .db $2e,$21,"with NEMESIS 86" ,0,1
+ .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
-;format:[nr.dif.enemies]x [enemy nr]
-; [enemy frequency] [next lvl]
-; [level_info: 0000:damage 0:directfire 0:ground 0:ceiling 0:diagfire]
-; [level_move] [tunnel size] [groundtype]
-; [16_ground] [16_ceiling] [stars1] [stars2]
+ .db 21
+level01: ;first wave of enemies; easeey
+ .db 2,6,7
+ .db 20,60,60,%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 22
+level02: ;some more enemies
+ .db 4,6,7,7,8
+ .db 17,40,75,%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 0
- .db $07,$08 ;moveType; enemyType
-level01: ;efrequency must be odd if halfluring!
- .db 3,$01,$02,$03
- .db $1b,$2f,%00010000
.db 0
- .db 0,0
+ .db 1,1,"Long-Range scanners are ",
+ .db "showing",0,1
+ .db 1,8,"lots of enemy vessels on ",
+ .db "an intercept",0,1
+ .db 1,15,"course.",0,1
+ .db 1,24,"I'm changing course to a",
+ .db " nearby ",0,1
+ .db 1,31,"asteroid belt and try to",0,1
+ .db 1,38,"lose them inthere.",0,0
+ .db 1,38+5,$FF
+
+ .db 23
+level04: ;light asteroid belt
+ .db 3,1,2,4
+ .db 12,24,80,%00011000
+ .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 24
+level05: ;inside asteroid belt
+ .db 5,1,2,3,4,5
+ .db 6,10,180,%00101000
+ .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 0,0
+ .db 25
+level02a:
+ .db 3,4,5,6
+ .db 30,1,40,%00010000
+ .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
+
+ .db 0
.db 0
.db $01,01,"And the storyline conti",
.db "anet =)",0,0,1,20
.db $FF
- .db $07,$09
-level02:
+ .db 26
+level03b:
.db 1,$02
- .db $13,$4b,%00100100,0,0,0
- .db 1,2,3,4,5,6,6,5,4,3,4,5,4,3,2,1
+ .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 0,0
+ .db 0
.db 0
.db $01,01,"Blablabla...",0,1
.db $01,34,"this storyline sux",0,0,1,39
.db $FF
- .db $07,$09
-level03:
+ .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 ;=%11111111=line
.db $07,$08
-level04:
+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
-level05:
+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
-level06:
+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
;------------------------------ enemies -------------------------------------
-;format: [000000:HP 00:occ] [HP64] [sprite] [appearance(ypos)]
-; [time2fire] [firefreq] [0] [0]
+;format: [HP64] [000000:HP 00:occ] [sprite] [xpos] [appearance(ypos)]
+; [movetype] [time2fire] [firefreq]
+;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
enemyspecs:
- .db 0,%00100110,(spr_enemy01-spr_enemy00)/2,1,10,10,0,0 ;#1
- .db 0,%00101010,(spr_enemy02-spr_enemy00)/2,3,20,20,0,0 ;#2
- .db 0,%00001111,(spr_enemy03-spr_enemy00)/2,2,100,5,0,0 ;#3
-
- .db 0,%00000110,(spr_enemy04-spr_enemy00)/2,2,0,0,0,0 ;#4
- .db 0,%00000111,(spr_enemy05-spr_enemy00)/2,3,0,0,0,0 ;#5
- .db 0,%00001011,(spr_enemy06-spr_enemy00)/2,2,0,0,0,0 ;#6
-
- .db 0,%00011011,(spr_enemy07-spr_enemy00)/2,3,0,0,0,0 ;#7
-
- .db 1,%00110011,(spr_boss0_1-spr_enemy00)/2,1,15,10,0,0 ;boss1
- .db 1,%11001011,(spr_boss0_2-spr_enemy00)/2,3,10,8,0,0 ;boss2
+;1-5=asteroids
+ .db 0,%00100110,(spr_enemyA1-spr_enemy00)/2,128,1,0,0,0
+ .db 0,%00111110,(spr_enemyA2-spr_enemy00)/2,128,1,0,0,0
+ .db 0,%01011010,(spr_enemyA3-spr_enemy00)/2,128,1,4,0,0
+ .db 1,%00001010,(spr_enemyA4-spr_enemy00)/2,128,1,3,0,0
+ .db 0,%00111110,(spr_enemyA4-spr_enemy00)/2,128,1,5,0,0
+;6=basic enemy
+ .db 0,%00100110,(spr_enemy13-spr_enemy00)/2,128,1,0,1,0
+;7=normal enemy
+ .db 0,%00101110,(spr_enemy04-spr_enemy00)/2,128,3,0,19,39
+;8=jumping bug (up/down)
+ .db 0,%00001111,(spr_enemy12-spr_enemy00)/2,128,2,1,87,5
+
+ .db 0,%00000110,(spr_enemy04-spr_enemy00)/2,2,0,0,0,0 ;9=
+ .db 0,%00000111,(spr_enemy05-spr_enemy00)/2,3,0,0,0,0 ;10=
+ .db 0,%00001011,(spr_enemy06-spr_enemy00)/2,2,0,0,0,0 ;11=
+
+ .db 0,%00011011,(spr_enemy07-spr_enemy00)/2,3,0,0,0,0 ;12=
+ .db 0,%00000011,(spr_enemy07-spr_enemy00)/2,1,0,0,0,0 ;13=
+ .db 0,%00000011,(spr_enemy07-spr_enemy00)/2,1,0,0,0,0 ;14=
+ .db 0,%00000011,(spr_enemy07-spr_enemy00)/2,1,0,0,0,0 ;15=
+ .db 0,%00000011,(spr_enemy07-spr_enemy00)/2,1,0,0,0,0 ;16=
+ .db 0,%00000011,(spr_enemy07-spr_enemy00)/2,1,0,0,0,0 ;17=
+ .db 0,%00000011,(spr_enemy07-spr_enemy00)/2,1,0,0,0,0 ;18=
+ .db 0,%00000011,(spr_enemy07-spr_enemy00)/2,1,0,0,0,0 ;19=
+ .db 0,%00000011,(spr_enemy07-spr_enemy00)/2,1,0,0,0,0 ;20=
+
+ .db 1,%00110011,(spr_boss0_1-spr_enemy00)/2,128,1,7,15,10 ;21=sm_boss1
+ .db 1,%01001011,(spr_boss0_2-spr_enemy00)/2,128,3,9,10,9 ;22=sm_boss2
+ .db 2,%00001011,(spr_boss0_3-spr_enemy00)/2,128,1,0,36,14 ;23=asteroid
+ .db 2,%00110011,(spr_boss0_3-spr_enemy00)/2,128,2,0,28,12 ;24=asteroid
+ .db 2,%00000111,(spr_boss0_4-spr_enemy00)/2,128,3,0,18,7 ;25=bigboss1
+ .db 2,%01001011,(spr_boss0_5-spr_enemy00)/2,128,3,0,18,7 ;26=bigboss2
.db 0,%00000000,0,0,0,0,0,0
.db 0,%00000000,0,0,0,0,0,0
.db 0,%00000000,0,0,0,0,0,0
spr_enemy00:
- .db 8,8 ;pickup
- .db %00011000 ; ██
- .db %00011000 ; ██
- .db %00011000 ; ██
- .db %11111111 ; ████████
- .db %11111111 ; ████████
- .db %00011000 ; ██
- .db %00011000 ; ██
- .db %00011000 ; ██
-
-spr_enemy01:
+ .db 16,8 ;pickup
+ .db %11111111 ; ████████████
+ .db %10000110 ; █ ██ █
+ .db %10000110 ; █ ██ █
+ .db %10111111 ; █ ████████ █
+ .db %10111111 ; █ ████████ █
+ .db %10000110 ; █ ██ █
+ .db %10000110 ; █ ██ █
+ .db %11111111 ; ████████████
+ .db 8
+ .db %11110000
+ .db %00010000
+ .db %00010000
+ .db %11010000
+ .db %11010000
+ .db %00010000
+ .db %00010000
+ .db %11110000
+ .db 0
+
+spr_enemyA1:
+ .db 7,6 ;asteroid one
+ .db %00011000 ; ██
+ .db %01101100 ; ██ ██
+ .db %10011110 ;█ ████
+ .db %11111010 ;█████ █
+ .db %10111100 ;█ ████
+ .db %01110000 ; ███
+spr_enemyA2:
+ .db 8,7 ;asteroid two
+ .db %00111100 ; ████
+ .db %01011010 ; █ ██ █
+ .db %01101101 ; ██ ██ █
+ .db %11111101 ;██████ █
+ .db %11111111 ;████████
+ .db %10110110 ;█ ██ ██
+ .db %01100000 ; ██
+ .db 0
+spr_enemyA3:
+ .db 8,8 ;asteroid three
+ .db %00011110 ; ████
+ .db %01110011 ; ███ ██
+ .db %01111101 ; █████ █
+ .db %10110111 ;█ ██ ███
+ .db %11111110 ;███████
+ .db %11111101 ;██████ █
+ .db %01010111 ; █ █ ███
+ .db %00001110 ; ███
+spr_enemyA4:
+ .db 7,6 ;asteroid four
+ .db %01111000 ; ████
+ .db %10110110 ;█ ██ ██
+ .db %11111101 ;██████ █
+ .db %01111011 ; ████ ██
+ .db %01001110 ; █ ███
+ .db %00110000 ; ██
+spr_enemy04:
.db 6,6 ;enemy type one
.db %00111100 ; ████
.db %01110000 ; ███
.db %11110000 ; ████
.db %01110000 ; ███
.db %00111100 ; ████
-spr_enemy02:
+spr_enemy05:
.db 8,6 ;enemy type two
.db %00111111 ; █████
.db %01111000 ; ████
.db %11111100 ; ██████
.db %01111000 ; ████
.db %00111111 ; █████
-spr_enemy03:
+spr_enemy06:
.db 6,6 ;enemy type three
.db %01111100 ; █████
.db %11110000 ; ████
.db %11111000 ; █████
.db %11110000 ; ████
.db %01111100 ; █████
-spr_enemy04:
+spr_enemy06A:
.db 6,6 ;enemy type four
.db %00111000 ; ███
.db %01111100 ; █████
.db %11111000 ; █████
.db %01111100 ; █████
.db %00111000 ; ███
-spr_enemy05:
+spr_enemy07:
.db 7,6 ;enemy type five
.db %00011110 ; ████
.db %01111110 ; ██████
.db %11111100 ; ██████
.db %01111110 ; ██████
.db %00011110 ; ████
-spr_enemy06:
+spr_enemy08:
.db 7,6 ;enemy type six
.db %00011100 ; ███
- .db %01111110 ; ██████
- .db %10111000 ; █ ███
- .db %10111000 ; █ ███
- .db %01111110 ; ██████
+ .db %01110010 ; ███ █
+ .db %10101100 ; █ █ ██
+ .db %10101100 ; █ █ ██
+ .db %01110010 ; ███ █
.db %00011100 ; ███
-spr_enemy07:
+spr_enemy09:
.db 8,6 ;enemy type seven
- .db %00011110 ; ████
- .db %01111111 ; ███████
- .db %10011100 ; █ ███
- .db %10011100 ; █ ███
- .db %01111111 ; ███████
- .db %00011110 ; ████
-spr_enemy08:
- .db 8,6 ;enemy type seven
- .db %00011110 ; ████
- .db %01111111 ; ███████
- .db %10011100 ; █ ███
- .db %10011100 ; █ ███
- .db %01111111 ; ███████
- .db %00011110 ; ████
+ .db %00011011 ; ██ ██
+ .db %01110110 ; ███ ██
+ .db %10111100 ; █ ████
+ .db %10111100 ; █ ████
+ .db %01110110 ; ███ ██
+ .db %00011011 ; ██ ██
+spr_enemy10:
+ .db 8,7 ;enemy type eight
+ .db %00111110 ; █████
+ .db %11110001 ;████ █
+ .db %00001110 ; ███
+ .db %00010101 ; â–ˆ â–ˆ â–ˆ
+ .db %00001110 ; ███
+ .db %11110001 ;████ █
+ .db %00111110 ; █████
+ .db 0
+spr_enemy11:
+ .db 8,7 ;enemy type nine
+ .db %00111110 ; █████
+ .db %00011101 ; ███ █
+ .db %11111111 ;████ ███
+ .db %01110110 ; ██ ███
+ .db %11111111 ;████ ███
+ .db %00011101 ; ███ █
+ .db %00111110 ; █████
+ .db 0
+spr_enemy12:
+ .db 8,7 ;enemy type ten
+ .db %10111110 ;█ █████
+ .db %01011101 ; █ ███ █
+ .db %01111110 ; ██████
+ .db %00010100 ; â–ˆ â–ˆ
+ .db %01111110 ; ██████
+ .db %01011101 ; █ ███ █
+ .db %10111110 ;█ █████
+ .db 0
+spr_enemy13:
+ .db 6,6 ;enemy type eleven
+ .db %00111100 ; ████
+ .db %01010000 ; â–ˆ â–ˆ
+ .db %10100000 ; â–ˆ â–ˆ
+ .db %10100000 ; â–ˆ â–ˆ
+ .db %01010000 ; â–ˆ â–ˆ
+ .db %00111100 ; ████
spr_boss0_1:
.db 16,10 ;boss type one :
.db %11110000
.db %11111110
.db %11111111
+ .db 0
spr_boss0_2:
- .db 16,10 ;boss type:one :
+ .db 16,10 ;boss type two :
.db %11111110 ; ███████
.db %00001111 ; █████ ████
.db %00111111 ; █████████ ██
.db %00111111 ; █████████ ██
.db %00001111 ; █████ ████
.db %11111110 ; ███████
- .db 10
+ .db 9
.db %00000000
.db %10001111
.db %11100011
.db %11111110
.db %11100011
.db %10001111
+spr_boss0_3:
+ .db 16,11 ;bigasteroid one
+ .db %00011110 ; ████
+ .db %01110011 ; ███ ███
+ .db %01111111 ; ███████ █
+ .db %01111111 ; █████████
+ .db %11111110 ;███████ ███
+ .db %11111110 ;███████████
+ .db %11111111 ;████████████
+ .db %11111110 ;███████ ████
+ .db %01111110 ; █████████
+ .db %00111110 ; ██████
+ .db %00011100 ; ███
+ .db 9
+ .db %00000000
+ .db %10000000
+ .db %01000000
+ .db %11000000
+ .db %11100000
+ .db %11100000
+ .db %11110000
+ .db %11110000
+ .db %11000000
+ .db 0
+spr_boss0_4:
+ .db 16,18 ;bigboss one :
+ .db %00000000 ; â–ˆ â–ˆ
+ .db %00000111 ; ███ ███
+ .db %00000011 ; ████ █
+ .db %00000001 ; ██ ██
+ .db %00000011 ; ███ ██
+ .db %00000000 ; █████
+ .db %00010111 ; █ ██████████
+ .db %00111111 ; ██████ ██ ██
+ .db %11111000 ;█████ ██ █ ███
+ .db %00001111 ; █████ ██ █ █
+ .db %11111000 ;█████ ██ █ ███
+ .db %00111111 ; ██████ ██ ██
+ .db %00010111 ; █ ██████████
+ .db %00000000 ; █████
+ .db %00000011 ; ███ ██
+ .db %00000001 ; ██ ██
+ .db %00000011 ; ████ █
+ .db %00000111 ; ███ ███
+ .db 19 ; â–ˆ â–ˆ
+ .db %01010000
+ .db %01110000
+ .db %11010000
+ .db %10110000
+ .db %10110000
+ .db %11111000
+ .db %11111110
+ .db %01101100
+ .db %11010111
+ .db %10110101
+ .db %11010111
+ .db %01101100
+ .db %11111110
+ .db %11111000
+ .db %10110000
+ .db %10110000
+ .db %11010000
+ .db %01110000
+ .db %01010000
+spr_boss0_5:
+ .db 16,15 ;bigboss two :
+ .db %00001111 ; █████
+ .db %00111110 ; █████ █████
+ .db %01111101 ; █████ █ ███████
+ .db %00000011 ; ██
+ .db %00000100 ; â–ˆ â–ˆ
+ .db %00000011 ; █████
+ .db %00011110 ; ████ ██ ████
+ .db %11110011 ;████ ██ █ █
+ .db %00011110 ; ████ ██ ████
+ .db %00000011 ; █████
+ .db %00000100 ; â–ˆ â–ˆ
+ .db %00000011 ; ██
+ .db %01111101 ; █████ █ ███████
+ .db %00111110 ; █████ █████
+ .db %00001111 ; █████
+ .db 15
+ .db %10000000
+ .db %11111000
+ .db %01111111
.db %00000000
+ .db %10000000
+ .db %11100000
+ .db %11011110
+ .db %01010000
+ .db %11011110
+ .db %11100000
+ .db %10000000
+ .db %00000000
+ .db %01111111
+ .db %11111000
+ .db %10000000
+ .db 0
;----------------------------------------------------------------------------
;----------------------------- logo ------------------------------------------
;----------------------------------------------------------------------------
;----------------------------------------------------------------------------
-; 0.97.625 -- 25.VI.00 -- size 5729
+; 0.97.73 -- 3.VII.00 -- size 6612
;
; # bullets do damage in all levels
; * more armor at armor-upgrade and extra armor at end of a level
; * several optimizations (init.procs some bytes smaller)
; # enemies hit with hitpoints left disappeared (one pop too much...)
; + bullets "charge up" (more damage) when not firing
+; - removed contrast changes
; + more powerful bullets have different sprites (larger=more damage)
; # multiples appear at your position (begin level/just selected)
; # when invulnerable multiples acted weird
; * the frequency an enemy fires bullets is defined per enemy
; + wide clipped sprites implemented (width 1-16 pixels)
; # bosses first move left until x=100, otherwise they'd be off-screen
+; * at status bar left below ships are displayed for lives left
+; * armor bar is two pixels high (better visible)
+; # bullet overflow fixed again (>63 bullets fired)
+; # correct weapon loaded when continuing a saved game
+; # game freezed when generating a random value <=1
+; * you explode in a different way than the enemies
+; + screen inverts for a brief time when you are hit!
+; # stats-bar was messed up when ya got 0 lives left
+; * two new (big) bosses modeled after a common MSX Nemesis2-boss
+; * score increased once every 32 frames (instead of every 256)
+; # ground fixed for new random routine (smaller routine; incs -2 to 2)
+; + laser will upgrade as well when you reselect it
+; * 2nd can be used in main menu (wow!)
+; # altered variable storage space because of Nemesis grew beyond 6kb
+; # fixed armor bar display when at maximum
+; + a few new enemies (asteroids) and remade 1st 4 levels; new pickup
+; - torpedo since it was kinda useless
+; + second icon now selects TAIL BEAM: bullet going backwards
+; # armor increase at the end of a level doesn't overflow armorbar
+; + you can choose your own ship out of four vessel after NEW GAME!
+; + enemies can appear at any x-position and move both left and right
+; + move patterns given per enemy, not per level
+; * new (faster) enemy-move system; 10 basic moves (x2 left+right)
;
+; ! game sometimes crashes after running Nemesis:
+; (in TI-OS: screen misformed + freeze)
;
; + added - removed * changed # bug fixed
\ No newline at end of file
git.shiar.nl / nemesis.git / blobdiff