Friday, November 7, 2014

Amiga Amos Programming: Robot R-29

  This time I'm going to show you screenshots of all levels of the Amiga version of my Robot R-29 game and the entire source code. Let's start from the title screen and the first five original levels. A little translation may be needed: życia - lives; punkty - score; plansza - level

The title screen
Level 1
Level 2
Level 3
Level 4 
Level 5
   As I said earlier, there were only these five levels in the original source code in the Atari magazine in which it was published. I decided to add a few features to make the game more interesting, and at the same time I also designed some new levels. And here they are. Four entirely unique new levels.

Level 6
Level 7
Level 8
Level 9
 And, of course, if the player runs out of the available lives the game over screen appears and on successful completion of congratulations screen. Some more translation: koniec gry - game over; ukończyłeś grę - you have completed the game; naciśnij fire - press fire.

Game over screen
Congratulations screen
  The Amiga Amos was a pretty good implementation of Basic, especially for that time. Although it was an interpreter, its performance was actually pretty good and allowed to write some decent game (for Basic on a 16-bit computer). There is also a compiler available, however I never had a chance to use one back then. Here's a screenshot of the Amos Creator environment, pressing Escape switches from editor to direct mode where one can execute almost any instruction.

The beginning of the source in Amos editor
  And lastly, the source code. If anybody's interested I'll gladly publish a translated version, with variable names and comments all in English language. At the end of the file you'll see level map definitions where different characters represent different elements of each level.
  • @ - wall
  • A, B, C, D - the robot looking at different directions (up, down, left and right)
  • F - spanner
  • E - bomb
  • G - magnet
  • H - magnetic field
  • I - electric field
  • J - land mine
  • K - exit


'--------------------------------------
'|        R O B O T     R - 2 9       |
'|  Autorzy:                          |  
'|        Rafal Bujakowski            |
'|               &                    |
'|        Edyta Bujakowska            |
'|   (c) 1996 Copyright by Tiger.     |
'--------------------------------------
'
Screen Open 0,640,256,4,Hires
Cls 
EXE:
Print : Print : Print 
A=Exist("robot_r-29:")
If A=0 Then Print "Wloz dyskietke gry 'robot r-29'" : Wait 300 : Goto EXE
'
  PL=1
  Dim PLANSZA(32,21)
'
'------------------------------------------------------- 
'
Screen Open 0,320,256,8,Lowres
Flash Off 
 Hide 
Load Iff "robot_r-29:klocki.robot"
'
'     ----   klocki  ----- 
For I=0 To 20
  Get Bob 0,I+1,I*10,0 To I*10+10,10
Next I
'    -----  murki  ----  
For I=0 To 19
  Get Bob 0,I+30,I*10,10 To I*10+10,20
Next I
'    ----  napisy  (zycia,punkty,plansza)  ----- 
   Get Bob 0,68,0,28 To 27,35
   Get Bob 0,69,28,28 To 65,35
   Get Bob 0,67,67,28 To 105,35
'    -----  cyfry  ----- 
For I=0 To 9
   Get Bob 0,70+I,I*8,20 To I*8+7,27
Next I
  Cls 0
Load Iff "robot_r-29:napisy.robot"
  Get Bob 0,60,0,0 To 140,120
Load Iff "robot_r-29:koniec.robot"
  Get Bob 0,56,0,0 To 260,100
  Get Bob 0,57,0,111 To 240,230
Load Iff "robot_r-29:koniec1.robot"
  Get Bob 0,58,0,0 To 260,100
  Get Bob 0,59,0,111 To 240,230
Load Iff "robot_r-29:fire.robot"
  Get Bob 0,55,0,0 To 240,30
'
'--------------- PLANSZA TYTULOWA ---------------------- 
'
TITTLE:
 Screen Open 0,320,256,8,Lowres
 Autoback 0
 Bob Update Off : Flash Off 
 Cls 0 : I=255 : J=90 : DI=1 : DJ=0
 Load Iff "robot_r-29:tytul.robot"
 Double Buffer 
Do 
 If Joy(1)>15 Then Exit 
   Dec I
  If I<-140 Then I=255
   Plot 0,0,1
   Bob 0,60,255-I,55
   Bob 1,100,I-8,60
   Screen Swap : Wait Vbl 
Loop 
 Bob Update On 
 Autoback 2
 Screen Open 0,320,256,8,Lowres
   Flash Off : Hide 
 Get Sprite Palette 
'
'---------------- PETLA GLOWNA ------------------------- 
'
   PL=1 : ZY=3 : PU=0
GAME_START:
 X=2 : Y=2
Gosub RYSUJ
 B=0 : C=0 : D=0 : E=0 : F=0 : MAG=0
 Ink 0,1
   Paste Bob 10,245,68 : PISZ[30,245,ZY,2,1] : Rem zycia
   Paste Bob 90,245,69 : PISZ[120,245,PU,6,1] : Rem punkty 
   Paste Bob 200,245,67 : PISZ[236,245,PL,2,1] : Rem plansza
 BX=(X+DX-1)*10
 BY=(Y+DY-1)*10
   O=0
'  ------------ mruganie na starcie -------------
Do 
   Inc O
   If Joy(1)>15 Then Exit 
   If O>0 and O<25 Then Paste Bob BX,BY,W
   If O>25 Then ZMAZ[BX,BY]
   If O>45 Then O=0
   Wait Vbl 
Loop 
Paste Bob BX,BY,W
'
L100:
 X1=X : Y1=Y
   If PU<>PU1 Then PISZ[120,245,PU,6,1]
   PU1=PU
 If Inkey$=Chr$(27) Then Goto L300
 If Jright(1)=-1 Then Inc X : W=1 : Goto L110
 If Jleft(1)=-1 Then Dec X : W=2 : Goto L110
 If Jdown(1)=-1 Then Inc Y : W=3 : Goto L110
 If Jup(1)=-1 Then Dec Y : W=4 : Goto L110
L110:
 BX=(X1+DX-1)*10
 BY=(Y1+DY-1)*10
   If MAG>0 Then ZMAZ[BX,BY] : Paste Bob BX,BY,W : Wait Vbl : X=X1 : Y=Y1 : Goto L100
 If PLANSZA(X,Y)<>14 Then Gosub L200
   BX=(X1+DX-1)*10
   BY=(Y1+DY-1)*10
  PLANSZA(X1,Y1)=14
 CX=(X+DX-1)*10
 CY=(Y+DY-1)*10
   Wait Vbl 
  ZMAZ[BX,BY]
   Paste Bob CX,CY,W
   Wait 4
 Goto L100
L200:
 L=PLANSZA(X,Y)
 If L=5 Then Inc B : Gosub L400 : Paste Bob B*10,215,5 : PU=PU+5 : Return 
  If L=7 Then Inc C : Gosub L400 : Paste Bob C*10,235,7 : PU=PU+5 : Return 
   If L=6 Then Inc D : Gosub L400 : Paste Bob D*10,225,6 : PU=PU+5 : Return 
    If L=12 Then Inc E : Gosub L400 : Paste Bob E*10,205,12 : PU=PU+5 : Return 
     If L=15 Then Inc F : Gosub L400 : Paste Bob F*10,195,15 : PU=PU+10 : Return 
 If L=10 Then ZMAZ[B*10,215] : Dec B : Gosub L410 : X1=X : Y1=Y : PU=PU+10 : If B<0 Then PU=PU-10 : Goto L300
  If L=8 Then ZMAZ[C*10,235] : Dec C : Gosub L420 : X1=X : Y1=Y : PU=PU+10 : If C<0 Then PU=PU-10 : MAG=1 : Goto L100
   If L=9 Then ZMAZ[D*10,225] : Dec D : Gosub L430 : Gosub L450 : PU=PU+10 : If D<0 Then PU=PU-10 : Goto L301
    If L=13 Then ZMAZ[E*10,205] : Dec E : Gosub DYNAMIT : PU=PU+15 : Return 
     If L=16 Then ZMAZ[F*10,195] : Dec F : Gosub KLUCZ : PU=PU+20 : Return 
 If L=11 Then PU=PU+100 : Goto L350
 X=X1 : Y=Y1
Return 
L300:
 X=X1 : Y=Y1
 Gosub L410 : Gosub L410
 Dec ZY
  If ZY<0 Then Goto L310
 Goto GAME_START
L301:
 X=X1 : Y=Y1
  BX=(X+DX-1)*10
  BY=(Y+DY-1)*10
  ZMAZ[BX,BY]
 For J=0 To 1
   For I=45 To 49
      Paste Bob BX,BY,I : Wait 3
      ZMAZ[BX,BY]
   Next I
 Next J
 Dec ZY
  If ZY<0 Then Goto L310
 Goto GAME_START
L310:
'
'---------------------- KONIEC ------------------------- 
'
 Do 
      Bob 1,30,20,56
      Bob 0,30,70,59 : Wait Vbl 
    For J=0 To 15
      If Joy(1)>15 Then Goto TITTLE
      Wait Vbl 
    Next J
      Bob 1,30,20,58
      Bob 0,30,70,57 : Wait Vbl 
    For J=0 To 15
      If Joy(1)>15 Then Goto TITTLE
      Wait Vbl 
    Next J
 Loop 
Goto TITTLE
'
'------------------------------------------------------- 
'
L350:
  PISZ[120,245,PU,6,1]
  BX=(X1+DX-1)*10
  BY=(Y1+DY-1)*10
 Do 
   For I=0 To 25
      Paste Bob BX,BY,W : Wait Vbl 
      If Joy(1)>15 Then Goto KL
   Next I
   For I=0 To 20
      ZMAZ[BX,BY] : Wait Vbl 
      If Joy(1)>15 Then Goto KL
   Next I
 Loop 
KL:
  Inc PL
Goto GAME_START
'----------- BRANIE ---------
L400:
  Wait 3
  BX=(X+DX-1)*10
  BY=(Y+DY-1)*10
  ZMAZ[BX,BY]
 BX=(X1+DX-1)*10
 BY=(Y1+DY-1)*10
   ZMAZ[BX,BY]
  PLANSZA(X,Y)=14
Return 
'--------- UZYCIE BOMBY -----
L410:
  BX=(X+DX-1)*10
  BY=(Y+DY-1)*10
  ZMAZ[BX,BY]
   For I=40 To 44
      Paste Bob BX,BY,I : Wait 3
      ZMAZ[BX,BY]
   Next I
 BX=(X1+DX-1)*10
 BY=(Y1+DY-1)*10
   ZMAZ[BX,BY]
  PLANSZA(X,Y)=14
   X=X1 : Y=Y1
Return 
'------- UZYCIE MAGNESU -----
L420:
  Wait 5
  BX=(X+DX-1)*10
  BY=(Y+DY-1)*10
  ZMAZ[BX,BY]
 BX=(X1+DX-1)*10
 BY=(Y1+DY-1)*10
   ZMAZ[BX,BY]
  PLANSZA(X,Y)=14
Return 
'------ UZYCIE KLUCZA FR ----
L430:
   Wait 5
  BX=(X+DX-1)*10
  BY=(Y+DY-1)*10
  ZMAZ[BX,BY]
 BX=(X1+DX-1)*10
 BY=(Y1+DY-1)*10
   ZMAZ[BX,BY]
  PLANSZA(X,Y)=14
Return 
'------ UZYCIE DYNAMITU -----
DYNAMIT:
   If E<0 Then E=0 : X=X1 : Y=Y1 : PU=PU-15 : Return 
  BX=(X+DX-1)*10
  BY=(Y+DY-1)*10
  ZMAZ[BX,BY]
   For I=40 To 44
      Paste Bob BX,BY,I : Wait 3
      ZMAZ[BX,BY]
   Next I
 BX=(X1+DX-1)*10
 BY=(Y1+DY-1)*10
   ZMAZ[BX,BY]
  PLANSZA(X,Y)=14
   X=X1 : Y=Y1
Return 
'--------UZYCIE KLUCZA ------
KLUCZ:
   If F<0 Then F=0 : X=X1 : Y=Y1 : PU=PU-20 : Return 
   Wait 5
  BX=(X+DX-1)*10
  BY=(Y+DY-1)*10
  ZMAZ[BX,BY]
 BX=(X1+DX-1)*10
 BY=(Y1+DY-1)*10
   ZMAZ[BX,BY]
  PLANSZA(X,Y)=14
   X=X1 : Y=Y1
Return 
'----------------------------
Goto GAME_START
L450:
 X1=X : Y1=Y
Return 
'
'------------------ UKONCZENIE ------------------------- 
'
KONIEC_GRY:
 Cls 0
 Load Iff "robot_r-29:ukoncz.robot"
  Paste Bob 120,200,69
  PISZ[150,200,PU,6,0]
   I=1 : X=0
 Do 
   X=X+I
   If X>200 or X<-50 Then I=-I
   Bob 0,X,220,55 : Wait Vbl 
   If Joy(1)>15 Then Exit 
 Loop 
Goto TITTLE
'
'------------------------------------------------------- 
'
Procedure ZMAZ[X,Y]
 Ink 0
 Bar X,Y To X+9,Y+9
End Proc
'------------------------------------------------------- 
Procedure PISZ[X,Y,L,C,P]
 For I=C To 1 Step -1
   U=L : L=(L/10)*10 : R=U-L : L=L/10
   XW=X+I*8
   If P>0 Then Ink 0 : Bar XW,Y To XW+7,Y+7
   Paste Bob XW,Y,70+R
 Next I
End Proc
'
'---------------- RYSOWANIE PLANSZY -------------------- 
'    
RYSUJ:
Cls 0
 U$="plansza_"+Chr$(PL+64)
 Restore U$
 Read LINES,W,KLOCEK : SY=LINES
 If LINES=0 Then Pop : Goto KONIEC_GRY
For I=1 To LINES
  Read A$ : L=Len(A$)
  SX=L
   For J=1 To L
     B$=Mid$(A$,J,1)
     A=Asc(B$)-64
     If A<0 Then A=14
      B=A
     If A=0 Then A=30 : B=30+KLOCEK
      If A>0 and A<5 Then X=J : Y=I : W=A
     PLANSZA(J,I)=A
     BX=(J+(32-SX)/2)*10
     BY=(I+(21-SY)/2)*10
     Paste Bob BX,BY,B
   Next J
Next I
    DX=(32-SX)/2+1
    DY=(21-SY)/2+1
Return 
'
'----------------------- M A P Y ----------------------- 
'
'
PLANSZA_A:
Data 8,3,5
Data "@@@@@@@@@@@@@@"
Data "@ @ JEE J@ JJ@"
Data "@AJ @ @@EJE@ @"
Data "@ @ @ @ J@@@ @"
Data "@E@  J@J@@@  @"
Data "@ @@@ @  J  @@"
Data "@JEE@  E@@ J K"
Data "@@@@@@@@@@@@@@"
'
PLANSZA_B:
Data 8,3,1
Data "@@@@@@@@@@@@"
Data "@C@@@@@@@@@@"
Data "@EJ J I  G@@"
Data "@ @ @@@H@H@@"
Data "@J@ EJ@J  @@"
Data "@ @ @E@ @@@@"
Data "@EEJ@F@K@   "
Data "@@@@@@@@@   "
'
PLANSZA_C:
Data 7,3,2
Data "@@@@@@@@@@@@@@"
Data "@ @   @@K@@@@@"
Data "@G@ @H H H @@@"
Data "@G@ @ H H H@@@"
Data "@G@G@HJH H  @@"
Data "@GGG@ H H H@@@"
Data "@@@@@@@@@@@@@@"
'
PLANSZA_D:
Data 6,3,3
Data "@@@@@@@@@"
Data "@ @@@   @"
Data "@GEJFI@H@"
Data "@H@@I@@J@"
Data "@KJ  JFF@"
Data "@@@@@@@@@"
'
PLANSZA_E:
Data 15,1,4
Data "@@@@@@@@@@@@@@@@@@@@@"
Data "@   E  @ G JHHHGGGGG@"
Data "@@@@@@ @J@ @ @@FGGGG@"
Data "@ H HJ J @  H@@@GGGG@"
Data "@H H @J@ @ @@@@@@@@@@"
Data "@ H H@ @G J JIE   @E@"
Data "@HFH @ @@@@@@@@G@ @ @"
Data "@ HEH@ J EE @ @@@   @"
Data "@H H @ @@@@   @@@J@@@"
Data "@@@@@@ EJ@EJ@ @@@ @K@"
Data "@F@@H@ @J@J@@ @ J @ @"
Data "@@H@     J    @E@ @ @"
Data "@E J @@@@ @@@ @J H@F@"
Data "@E@@ J E   JG @@@ I @"
Data "@@@@@@@@@@@@@@@@@@@@@"
'
PLANSZA_F:
Data 10,1,5
Data "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
Data "@F      @ MMMM   @E     @E   @"
Data "@E LLLHIJ MLMM@    J O  P  @ @"
Data "@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @"
Data "@  @K@EEE@MMMMMMMMMMMMMMMMM@ @"
Data "@  @P@EEE@MMJMJMJMJMJMJMJMM@ @"
Data "@        @MMMMMMMMMMMMMMMMM@ @"
Data "@@@@@@P@@@@@@@@@@@@@@@@@@@@@ @"
Data "@        J    O  J   O       @"
Data "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
'
PLANSZA_G:
Data 8,3,8
Data "@@@@@@@@@@@@@@@@@@@@@@@@"
Data "@        J J J J J     @"
Data "@@@@@@@ MMMMMMMMM@@@@@@@"
Data "@   L   M E  O  M   L  @"
Data "@       M     JIM   L  @"
Data "@@@@@P@@@@@@@@@@@@@@@@@@"
Data "@ EEEEEEEEE   F F F F K@"
Data "@@@@@@@@@@@@@@@@@@@@@@@@"
'
PLANSZA_H:
Data 5,1,9
Data "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
Data "@        MMMMMMMMMML@     @@K@"
Data "@@@@@@LMM   O   E   PJ  J @@ @"
Data "@ OJOMMMM     L L L @     P  @"
Data "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
'
PLANSZA_I:
Data 12,3,6
Data "@@@@@@@@@@"
Data "@   MMMMO@"
Data "@L  MLMLM@"
Data "@@@@@@P@@@"
Data "@O   I @@@"
Data "@@@@@@ EF@"
Data "@K   @@P@@"
Data "@@@@ @E  @"
Data "@J   @F  @"
Data "@ J@@@@@ @"
Data "@J  J    @"
Data "@@@@@@@@@@"
'
PLANSZA_J:
Data 0,3,5

8 comments:

  1. Thank you. If I find some time I'm going to translate the source code into English and post it, and maybe even color the graphics to update it a little bit.

    ReplyDelete
  2. Wow! I did not expect that someone will make it at Amiga :D, it's amazing that I had not thought of it :D

    ReplyDelete
    Replies
    1. I'm not sure what you mean. Did you see it many years ago in "Moje Atari" magazine? That's where the original idea and the first five levels comes from.

      Delete
  3. Thanks for the post about a very interesting game for the Atari. It was an inspiration and resource for my own port of the game to the TRS-80 MC-10 8-bit computer. Here's a vid of the game: https://youtu.be/twRCmd7cPrg?list=UUUtXDjPX3EbKaByo5MeFlYg
    Your included screen help save some typing on my part!

    ReplyDelete
    Replies
    1. Thank you for the nice comment and especially thanks for including my link in your video. You're pretty active here. I personally have never come across TRS-80 and it's very interesting to see the platform.
      My port of this Atari game was actually for Amiga, although I've written it also in C# and XNA on MS Windows. I'll publish that whenever I can.

      Delete
  4. I've also made a blog posting about my game port.
    http://jimgerrie.blogspot.ca/2016/06/i-guess-you-can-call-me-type-in-fanatic.html
    Thanks again for sharing your Amiga Basic source code. Even though I mostly typed in the Atari source from the original "Moje Atari" article, I used your map info, which saved me a lot of typing.

    ReplyDelete
    Replies
    1. I've read your post Jim. Thank you very much for mentioning me in it. You're pretty active and your 8-bit programming is very impressive. I'd like to translate the listing in this post but working as a professional programmer doesn't leave much time for other hobbies. I constantly keep updating my knowledge rather than looking back (as you'd probably imagine in a profession where everything changes so quick).

      Delete