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Moon Patrol body shop !


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#1 TIX ONLINE  

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Posted Fri Sep 7, 2018 10:49 AM

I always hated the original buggy sprite, but I loved the tank like tracks (instead of wheels).. at least they looked like tank tracks to me..

so Inspired by EnterDude's topic for a complete graphic upgrade of Moon Patrol,

I tried to improve the body of the buggy for a modest graphic replacement hack.

The first attempts where pretty good, but then I read that (Quote: It appears the black PMGs are Double wide and Purple PMGs are Quad wide) what ???? :-o

Let me tell you that I have a new respect for the original graphic designer for he have to draw a recognizable buggy with Double wide and Quad wide blocks.

So taking in account the limitations of the game I came with this shape !

I believe the existing tracks/wheels of the buggy are the best compromise (I tried different design combinations but they don't work when animated..)

What do you think ?

 

 

Attached Thumbnails

  • moon-f.JPG

Edited by TIX, Fri Sep 7, 2018 10:51 AM.


#2 Keatah ONLINE  

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Posted Fri Sep 7, 2018 12:26 PM

Make it a hovercraft.



#3 doctorclu OFFLINE  

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Posted Thu Sep 13, 2018 8:39 AM

With Miner 2049er wrapping up I thought I would take a look at the Moon Patrol hex code.

 

Screen Shot 2018-09-13 at 8.55.44 AM.png

 

And I found it!!

 

Screen Shot 2018-09-13 at 9.29.25 AM.png

 

I changed that into a block to see if I had the right area and got this...

Screen Shot 2018-09-13 at 9.30.47 AM.png

Attached File  Moon Patrol 00.rom   16KB   27 downloads

 

And then everything under that is the black layer and animation

Screen Shot 2018-09-13 at 9.24.21 AM.png

 

So we found the buggy.  Now to find that color code to change from blue to yellow.  Why yellow though?  Most arcade versions of Moon Patrol I have seen have the moon buggy as redish or pink.


Edited by doctorclu, Thu Sep 13, 2018 8:40 AM.


#4 TIX ONLINE  

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Posted Thu Sep 13, 2018 11:07 AM

Yay :D

i just made it yellow/green to show the detail better, it could be any color we decide (preferably as close to the arcade as possible)



#5 doctorclu OFFLINE  

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Posted Thu Sep 13, 2018 12:25 PM

:D .  Ok, some good news and bad news.

 

Good news: we know where the buggy sprites are!   It is two layers (unlike the 2600 version of one color).

 

Screen Shot 2018-09-13 at 9.29.25 AM.png Screen Shot 2018-09-13 at 8.55.44 AM.png

 

Bad news:  If reading the above correctly, we are seeing a few thing going on.   First off, the programmers used an effect where the pixel are about two pixel's wide (sometimes more, but that in a bit.)

 

Screen Shot 2018-09-13 at 9.24.21 AM.png

 

The black animation is eight pixels wide, just stretched out.   And I figure they cover (from the blue layer above) from 1470 to 1476.  I believe 1473 is stretched out a bit more than the rest (double the others).  The same stretch trick is used on 1477.

 

In other words, no wonder you had such a difficult time looking for this.  I encountered this stretch trick however on 2600 and 800 versions of Fast Eddie when making the Bubsy hack.

 

The rolling animations, BTW, and the second bit of bad news, are eight pixels wide once again stretched out.  Unlike the blue layer these are pixel for pixel with no funny business.  At least for 1479 to 1480 (actually 8 pixels apart counting in hex).  The wheel pixels I haven't determined if they are all the same pixel size.

 

Making three rolling wheels with eight pixels is not easy.  However, for the 2600 version I developed a type of rolling wheel effect for two wheels and three wheels.   While I was happy with this hack using two frames of animation, I always wished (and may one day add) another layer so the buggy can be two colors.

 

I believe more frames of animation were made for the Atari 800, which might be good or bad news, I haven't figured that out yet, and need to figure out how all this runs together:

 

Screen Shot 2018-09-13 at 9.43.17 AM.png

 

So that is my assessment of what we have so far.  :)


Edited by doctorclu, Thu Sep 13, 2018 1:14 PM.


#6 TIX ONLINE  

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Posted Thu Sep 13, 2018 3:45 PM

Yes I have read about the double and quad pixels.. makes it really hard to draw something recognizable :(

Below the new design (still needs tweaking) with the old for comparison, the animated wheels/tracks stays the same for now !

What you think ?

Attached Thumbnails

  • moon.JPG


#7 doctorclu OFFLINE  

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Posted Thu Sep 13, 2018 5:15 PM

Yeh looks good. Might try that out. We could do a blue version real quick.

#8 TIX ONLINE  

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Posted Fri Sep 14, 2018 1:10 AM

Slightly tweaked !

I'd love to see a blue buggy running around :D

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  • moon1.JPG


#9 doctorclu OFFLINE  

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Posted Fri Sep 14, 2018 9:24 AM

So I misunderstood how things were laid out, but you'll see how this works.  Sometimes you can't know for sure till you tinker with things.

 

The pixels are wide and short.

 

First I removed the black except for the wheels:

 7.46.46 AM.png

Attached File  Moon Patrol 02.rom   16KB   28 downloads

 

Then I started removing columns:

7.41.49 AM.png 7.42.02 AM.png

7.42.48 AM.png 7.42.55 AM.png

7.43.37 AM.png Screen Shot 2018-09-14 at 7.54.42 AM.png

Screen Shot 2018-09-14 at 8.44.17 AM.png 7.44.48 AM.png

Screen Shot 2018-09-14 at 10.17.22 AM.png 7.45.56 AM.png

Attached File  Moon Patrol 03.rom   16KB   27 downloads

Screen Shot 2018-09-14 at 10.16.27 AM.png  7.46.57 AM.png

 

And I've found there are marker or reference points.  You delete the one right above all this (at 146B), just one pixel, and you get a rover....  :P

Screen Shot 2018-09-14 at 8.37.32 AM.png

Attached File  Moon Rover.rom   16KB   31 downloads

 

And there is a dot under all this (at 1478).  You delete it, the wheels don't know where to go and it all goes bonkers.

 

Fun stuff.  So that should give a better idea of what we got here.

 

I found your original message that started this off.


Edited by doctorclu, Fri Sep 14, 2018 2:37 PM.


#10 TIX ONLINE  

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Posted Fri Sep 14, 2018 4:27 PM

Yeah, too bad the overhaul got nowhere..

 

Back to our business, the little rover is fun :P

The rest sounds like bad news..  you think it's doable ??


Edited by TIX, Fri Sep 14, 2018 4:31 PM.


#11 AtariNerd OFFLINE  

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Posted Fri Sep 14, 2018 4:48 PM

Aww, Curiosity has changed her mission objective, I see. A little antenna and spinning dish would complete the look. :D



#12 doctorclu OFFLINE  

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Posted Fri Sep 14, 2018 4:55 PM

Got two flavors to start this off with....

 

No Back End...

Screen Shot 2018-09-14 at 5.42.16 PM.png

Screen Shot 2018-09-14 at 5.42.25 PM.png

Attached File  Moon Patrol 04a.rom   16KB   32 downloads

 

With Back End....

Screen Shot 2018-09-14 at 5.53.23 PM.png

Attached File  Moon Patrol 04b.rom   16KB   32 downloads


Edited by doctorclu, Fri Sep 14, 2018 4:56 PM.


#13 doctorclu OFFLINE  

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Posted Fri Sep 14, 2018 5:26 PM

Liking this one.  Basically took the original, removed some from the nose, and gave it a windshield.

 

Screen Shot 2018-09-14 at 6.19.40 PM.png

 

 

Attached File  Moon Patrol 05.rom   16KB   33 downloads



#14 TIX ONLINE  

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Posted Sat Sep 15, 2018 1:53 AM

Yeah not bad !

 

From your explanation I understand that my buggy isn't doable, and from the first results I can see the problem.

The body isn't lined up with the wheels, and I suppose this can't change ?? (move the wheels slightly to the right)

So back to the drawing board :)



#15 TIX ONLINE  

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Posted Sat Sep 15, 2018 6:23 AM

ok correct positioned layers,

attempt for more arcade likeness..  

oh it's the pink one ;-)

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  • moon3.JPG

Edited by TIX, Sat Sep 15, 2018 6:24 AM.


#16 TIX ONLINE  

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Posted Sat Sep 15, 2018 8:19 AM

oh oh, just realized something..

correct me if I'm wrong, the width of the black layer is only between the two lines ??? :woozy:

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  • moon4.JPG


#17 doctorclu OFFLINE  

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Posted Sat Sep 15, 2018 10:54 AM

oh oh, just realized something..

correct me if I'm wrong, the width of the black layer is only between the two lines ??? :woozy:

 

HA... yeh, the black layer is in between the two lines.  Which is why I did not have a black highlight on the front gun.

 

Not perfect, but hey, I think the buggy already looks better.



#18 TIX ONLINE  

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Posted Sat Sep 15, 2018 11:36 AM

Yes it is, but we can't seem to escape from the rectangular original....

 

ok then, rolls sleeves...

how about this sleek futuristic super-lux space vehicle ???   :P

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  • moon5.JPG

Edited by TIX, Sat Sep 15, 2018 11:51 AM.


#19 doctorclu OFFLINE  

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Posted Sat Sep 15, 2018 6:29 PM

Cool can try that soon.  Might also see if I can add to the curiousity rover.  :D



#20 TIX ONLINE  

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Posted Sun Sep 16, 2018 1:30 AM

great ;-)

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  • moon6.JPG


#21 TIX ONLINE  

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Posted Sun Sep 16, 2018 7:02 AM

Since I stopped striving for arcade likeness,  I'm on a roll  :lolblue:


Edited by TIX, Sun Sep 16, 2018 2:03 PM.


#22 doctorclu OFFLINE  

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Posted Mon Sep 17, 2018 7:38 AM

Give this a shot.  Still running some tests to figure out the color code.



#23 TIX ONLINE  

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Posted Mon Sep 17, 2018 11:57 AM

Taking screenshots I have managed to find the animation frames of the flying enemies,

If I'm not mistaken they are two frames (maybe more..) for each monochrome spacecraft (made with double wide pixels of course :P )..

 

As arcade authenticity goes:

-  the red flying saucer is close enough and with little tweaking can be perfect (plus it is rotating)

-  the yellow flying saucer is better than the egg yolk :) ? of the arcade (plus it is rotating beautifully)

-  the blue bomber seems tiny in comparison and needs work, but the only way to give volume is to expand the sprite vertically.. you think that is possible ??

See the (wip) bomber sprite last in line !

 

The buggy factory keeps coming up with new wacky designs :-D , I wait to see the last one in action to decide how to proceed !!

Attached Thumbnails

  • moon-enemies.JPG

Edited by TIX, Mon Sep 17, 2018 12:07 PM.


#24 doctorclu OFFLINE  

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Posted Tue Sep 18, 2018 5:04 AM

Here is one to have fun with..

 

Screen Shot 2018-09-18 at 7.37.33 AM.png

Attached File  Moon Patrol 06a 5488.rom   16KB   29 downloads

*  Changes color.

 

Screen Shot 2018-09-18 at 7.37.57 AM.png

Attached File  Moon Patrol 06b 5344.rom   16KB   34 downloads

*  Changes color

*  Raises the body off the wheels a bit.

 

Let me know what you think.  :)

 


Edited by doctorclu, Tue Sep 18, 2018 6:40 AM.


#25 doctorclu OFFLINE  

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Posted Tue Sep 18, 2018 6:56 AM

With the 06b rom above I have noticed that every so often, usually in the second to the last stage of a set, there is a blank box beneath the surface.  (shown in the picture below) .    I've played the 06b rom to level M with no problem, but simply found this fascinating.

Attached Thumbnails

  • Screen Shot 2018-09-18 at 7.54.31 AM.png

Edited by doctorclu, Tue Sep 18, 2018 6:57 AM.





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