How is grouping ghost monsters done on Ms.Pacman/Pacman?

  1. How is grouping ghost monsters done on Ms.Pacman/Pacman?

    05-04-2020, 12:38 PM
    A very old archived thread I found on Pac-Man grouping was in need of proper answering.

    To bring to the surface clarity on questions raised @JJT_Defender
    at:
    https://www.twingalaxies.com/showthr...64#post1078864

    I did answer the questions but now realize afterwards that forum thread is not active. So I am re-open the thread here.

    Quote Originally Posted by JJT_Defender View Post
    1a.How is grouping ghost monsters done on Ms.Pacman/Pacman?

    1b.Are their different techniques grouping?

    1c.Is timing of the ghost change of directions a factor?

    1d.What are the timing intervals in seconds ?

    2.What ghost monsters do you group first Pinky-Red-liteBlue-Orange?

    3.What are their names & characteristics?

    JJT 8)
    @JJT_Defender Never too late to get better answers to your questions sent in 2003!'
    @jpittman - Reference your tutorial below.

    1a.How is grouping ghost monsters done on Ms.Pacman/Pacman?

    francoisadt:
    Grouping are done differently on Pac-man than on Ms. Pac-Man.
    Some generic principles are the same in both games according Jamey Pittman's document Pac-Man Dossier
    and video by him.

    Generic Principles are:
    Seek positions (to move to positions) of each ghost characteristic determine the next four possible position targets for the four ghosts relative to the position and direction of Pac-Man/Ms.Pac-Man.

    Grouping on Pac-Man
    ===================

    Grouping options are limited on Pac-Man due to the board layout and the manner the exits are positioned.
    Grouping on Pac-man are very mono-set, see usage of grouping by Jon Stoodley/Greg below.
    Grouping on Pac-Man are deterministic due to the ghost AI (intelligence) are deterministic. Next positions of ghosts are
    predetermined whereas in Ms. Pac-Man & Jr. Pac-Man games the ghosts AI is nondeterministic and more dynamic.

    See my previous wall entries a few years ago on my TG Wall at "More Resources" at end of this post.


    "Pac-Man Grouping New:



    Jon Stoodley:

    Perfect 'freehand' Pac Man - Arcade - Play Margate 2015 - 1/5


    At 12;25 (wait for reversals to stop)
    At 13:14 (top left quadrant waitt point)

    Do the following WHEN RED ahead of the pack to switch RED to the back of the pack:
    When the front ghost reach inner path entry towards
    TOPLEFT quadrant as on 13:15 (red ghost at point of moving UP.
    Then move Pac-Man to the right side to the right-side-reverse-L" as on 13:17

    When PINK or GREEN are in front of RED:
    Goto the wait point as on 13:23
    Wait for front ghost to just reached to pass Pac-Man (reaching the first dot going upwards), then move to the right.
    Hold in INNER-L at 13:25 for a few milliseconds to force the pevious front ghost that did moe upwards pass you to go down the other passage.

    So with Pac-Man grouping are very easy compared to Ms. Pac-man or Jr Pac-man because you only need to learn ONE base method to be able to group all the ghosts if you are patient enough.

    Jamey PittMan showcase a fantastic advanced positioning grouping techniques but are not needed if you want group ghost to be "close enough" to be eaten but not necessarily 100% on top of each other.

    Pac-Man Grouping Tutorial by Jamey PittMan:




    Grouping on Ms. Pac-Man

    ======================
    Grouping on Ms. Pac-Man are more difficult due to more corners, travel paths the ghosts and four exits which can trap Pac-Man early.

    Ms. Pac-Man Grouping Tutorial Boards 1 and 2 by David Manning:

    Ms. Pac-Man Tutorial 1: Ghost Behavior



    Ms. Pac-Man Tutorial 2: Intro to Grouping



    Ms. Pac-Man Grouping Tutorial Boards 3,4,5 by Francois du Toit:


    Ms. Pac-Man They Meet Board 3 - Orange (How to group)


    Ms. Pac-Man Safe Grouping method for Acts - They Meet


    Ms. Pac-Man "Acts - They Meet" Safe grouping method - without using tunnels



    1b.Are their different techniques grouping?
    francoisadt: Yes, see the tutorials above.

    1c.Is timing of the ghost change of directions a factor?
    francoisadt: Yes, direction is key. So the key factors are:
    (a) SPEED: speed of ghosts vs speed of Pac-Man
    (b) DISTANCE:
    - Distance of ghosts from current position of current moving Pac-Man
    - Distance of ghosts from new position of current moving Pac-Man
    (c) TIMING:
    - time of ghost take corners vs time Pac-man take corners
    - time of ghost change direction and reposition vs time Pac-man can change direction and reposition

    This then point a key factor the gamer need to have:
    - Very good reflexes to act and re-act
    - Very fast thinking

    1d.What are the timing intervals in seconds ?
    francoisadt: one sixieth of second. So your brain think faster than the computer but your eyes do not.

    2.What ghost monsters do you group first Pinky-Red-liteBlue-Orange?
    francoisadt:
    Good question. One key aspect is to group any ghost with RED as soon as possible to eliminate the possibility to be trappedby four ghosts moving vs three ghosts vs two ghosts vs one ghost (all are groued as ONE)

    I recommend group RED then PINK first because they are the ones target Pac-man directly.


    3.What are their names & characteristics?
    See Jamey PittMan's document
    https://www.gamasutra.com/view/featu...an_dossier.php


    More resources:

    https://www.twingalaxies.com/francoi...-step-overview

    https://www.twingalaxies.com/francoi...2-2016-1109-pm
    https://www.twingalaxies.com/francoi...-deterministic

    https://www.twingalaxies.com/francoi...n-and-mspacman

    https://www.twingalaxies.com/francoi...-345-they-meet
    streaming mspacman normal and turbo speed at: https://www.twitch.tv/francoisadt

    Francois du Toit
    Likes Doron liked this post
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