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New pacman for atari 2600


DINTAR816

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finally made a good run of the 9th-12th key, it just keeps repeating, but wanted to make sure.

 

this is the HARDEST version of pac-man, patterns don't work consistently, and red speeds up superfast,

you can't really make an error

 

spliced from stella, using savestates:

 

 

later

|| | || | |

n e gative 1

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Bummer this version doesn't deal with diagonal joystick presses. The 4k version does just fine. As an Atari 800 machine code developer, this is quite easy to deal with. Simply use bit-level checks on the joystick register, NOT specific values for up/down/left/right.

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5 hours ago, stlouisrod said:

Bummer this version doesn't deal with diagonal joystick presses. The 4k version does just fine. As an Atari 800 machine code developer, this is quite easy to deal with. Simply use bit-level checks on the joystick register, NOT specific values for up/down/left/right.

i didn't notice any difference in the gameplay, or problems.

don't think it made any impact for me.

 

later

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ne gative1 

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5 hours ago, stlouisrod said:

Bummer this version doesn't deal with diagonal joystick presses. The 4k version does just fine. As an Atari 800 machine code developer, this is quite easy to deal with. Simply use bit-level checks on the joystick register, NOT specific values for up/down/left/right.

What in your mind is the correct way to deal with diagonals? Should they count as either direction, or neither direction?

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6 hours ago, Karl G said:

What in your mind is the correct way to deal with diagonals? Should they count as either direction, or neither direction?

They should work based on the current direction and prioritize changing direction. E.g. when moving right, pressing right+up (or even only up!) should result into moving up if possible. If not, continue moving right.

 

That way you can go around corners much easier.

 

I really dislike games where you fight the controls instead of the game. And this would be such a case. Even Pitfall! (and many other games from back then) got the cornering right, more than 40 years ago. So there are no excuses now.

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22 hours ago, stlouisrod said:

Bummer this version doesn't deal with diagonal joystick presses. The 4k version does just fine. As an Atari 800 machine code developer, this is quite easy to deal with. Simply use bit-level checks on the joystick register, NOT specific values for up/down/left/right.

The original arcade version of Pac-Man uses a 4-way joystick! I know because I have one that came from Pac-Man machine. In one of the old "how to play" Pac-Man books, it mentioned cornering and said to push the joystick prior to the turn you want to make!

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59 minutes ago, SoundGammon said:

The original arcade version of Pac-Man uses a 4-way joystick! I know because I have one that came from Pac-Man machine. In one of the old "how to play" Pac-Man books, it mentioned cornering and said to push the joystick prior to the turn you want to make!

Yup, that's what I mentioned above in brackets.

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On 5/12/2024 at 1:46 AM, BrianC said:

The diagonal behavior is odd. Pac-Man will move up or down if a diagonal is held when he hits a wall. 

 

22 hours ago, Thomas Jentzsch said:

They should work based on the current direction and prioritize changing direction. E.g. when moving right, pressing right+up (or even only up!) should result into moving up if possible. If not, continue moving right.

 

That way you can go around corners much easier.

 

I really dislike games where you fight the controls instead of the game. And this would be such a case. Even Pitfall! (and many other games from back then) got the cornering right, more than 40 years ago. So there are no excuses now.

I tried to do that but with the cut corner it's more difficult, it only works in the previous versions without cut corner.
Maybe I can try again.

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On 5/13/2024 at 4:35 PM, Thomas Jentzsch said:

Why does cutting the corner make it more difficult? 

It is not easy as in the versions without cut corner, because in those versions Pacman moves only vertically or horizontally, however in this one he does it in both directions at the same time when pacman is crossing a corner, that complicates things, at least the ways I tried didn't work (Pacman kept moving constantly between the two directions).

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