Nice algorithm for keypresses - GameCreators Forum

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Delfir

20

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Joined: 28th Aug 2004

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Posted: 12th Mar 2005 14:47

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do you have a game where you press a button on the keyboard to buy something, but when you press it, it buys more than one of the item because you left your finger on the button too long. Well, try this algorithm.

+ Code Snippet

spacesafe=0

do
   if spacekey()=1 and spacesafe=0
      spacesafe=1
   endif
   if spacekey()=0 and spacesafe=1
      *buy item, or whatever happens*
      spacesafe=0
   endif
endif
loop

It's fullproof, with this code, you don't have to worry about buying 5 of something you only want one of, or on a title screen, you don't have to worry about accidentally going all the way down to options when you meant to go to load game.

Legendary>Heroic>Normal>Easy

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Ric

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Joined: 11th Jul 2004

Location: object position x

Posted: 12th Mar 2005 21:28

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Other than the out-of-place endif at the end, that is foolproof.

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CuCuMBeR

21

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Joined: 11th Jan 2003

Location: Turkey

Posted: 12th Mar 2005 22:16

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Here is a better one and excuse my english as its not my native

+ Code Snippet

`-----------MAKE BUTTON (C)------------
if keystate(46) > 0 and BUTTON_C = 0 then BUTTON_C = 1
   if BUTTON_C = 1
      BUTTON_C = 2
      `---------------------

      REM ANYTHING YOU DO HERE WILL BE DONE FOR ONCE ONLY

      `---------------------
            inc STATEMENT_C, 1
               if STATEMENT_C > 1 then STATEMENT_C = 0
   endif
   if keystate(46) = 0 then BUTTON_C = 0

if STATEMENT_C = 1
      `---------------------

      REM ANYTHING YOU DO HERE WILL BE LOOPED AS STATEMENT_C is 1

      `---------------------

endif

Also you can set as many statements as you want with following changes, anytime you press the keystate(46) the statement will increase

+ Code Snippet

`-----------MAKE BUTTON (C)------------
if keystate(46) > 0 and BUTTON_C = 0 then BUTTON_C = 1
   if BUTTON_C = 1
      BUTTON_C = 2
      `---------------------

      REM ANYTHING YOU DO HERE WILL BE DONE FOR ONCE ONLY

      `---------------------
            inc STATEMENT_C, 1
               if STATEMENT_C > 10 then STATEMENT_C = 0  ` increase how many statements you want changing (10)
   endif
   if keystate(46) = 0 then BUTTON_C = 0

if STATEMENT_C = 1
      `---------------------
      REM ANYTHING YOU DO HERE WILL BE LOOPED AS STATEMENT_C is 1
      `---------------------
endif
if STATEMENT_C = 2
      `---------------------
      REM ANYTHING YOU DO HERE WILL BE LOOPED AS STATEMENT_C is 2
      `---------------------
endif

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P Schnell

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Joined: 13th Feb 2005

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Posted: 13th Mar 2005 07:40

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Looks OK to me, though I wouldn't call it an algorithm, more of a lock and key.

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Code Snippets / Nice algorithm for keypresses