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#115 MSX light gun emulation

open
nobody
5
2014-07-12
2005-03-27
No

Similar to what RedMSX 1.4 has: emulation of the light
gun. Like in Karoshi's Duck Hunt and later maybe the
light gun of ASCII (The Plus-X Terminator Laser).
This could be done by using the cursor as a pointing
device again (so, make a nice cursor for this, not hide
it :)

Discussion

  • Manuel Bilderbeek

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    Originator: YES

    Here's some info from NYYRIKKI, posted here: http://www.msx.org/forumtopicl6873.html

    The correct distance to use the gun seems to be about 80cm between 14"
    monitor (CM8833, older model) and head of the gun. At this distance
    the circle, that is visible to the transistor seems to have only about
    5 pixel radius after that the light effect to result will drop
    locarithmically very fast. The transistor will activate pretty quickly
    after detecting the light. Delay is normally only about one line (*).

    When the capasitor is fully loaded it will hold the signal up about 31
    lines. How well the capasitor is loaded depends of the brighness of
    the pixels inside the circle. This capasitor gets loaded to almost
    full pretty fast so I would say, that normal hit will cause signal to
    go on for 24-28 lines. The gun is more sensitive to green and blue
    light than red light.

    Note:
    Measurements have been made with "normal" screen brighness in "normal"
    home environment (40W light bulp on roof) with "normal" screen height
    settings. Changeing these parameters will change the results. Propably
    manufacture date of the light gun will also have effect.

    * All lines I talk about are NTSC scanlines (with incomplete timing as
    normal in MSX)

     
  • eadmaster

    eadmaster - 2014-07-12

    I second the request since there are some games that can only be played with the gunstick:
    Guillermo Tell
    Solo
    Mike Gunner
    Space Smugglers
    Target Plus
    Trigger

    Also, there are some with only support the ASCII Plus-X Terminator Laser, like Dungeon Hunter.

     

    Last edit: eadmaster 2014-07-12
  • Manuel Bilderbeek

    What exactly is gunstick?

     
  • Manuel Bilderbeek

    OK, apparently it's the same as light gun :)

    See also http://www.msxblue.com/manual/controlsother_c.htm

     
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