Decrementing a variable during an on key press script

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­Meatballsub
Liquid Metal Slime
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Decrementing a variable during an on key press script 
 PostMon Jan 11, 2010 6:42 am
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This is a portion of the script. Let me know if more needs to be seen:

Code:
               
if (key is pressed(45)) then (
if (alreadyquacked == false) then (
if (staminasize >> 0) then (
play sound (7,false,false)
free slice (staminabar)
staminasize -= 5
staminabar := create rect(staminasize, 10)
put slice (staminabar,60,20)


When you press key 45, it is only supposed to take -5 each time it is pressed. However, it completely drains it unless you are very light on touching the key. Is there a way to make sure it only reduces the amount by 5 each time it is pressed?

FYI, I used to know the answer to this because I did the same thing in Mikey T. Unfortunately, I lost the script for that game some time ago though.
Cornbread Chemist
­Bob the ­Hamster
Liquid Metal King Slime
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 PostMon Jan 11, 2010 4:06 pm
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Keyval will help here

Code:

if (keyval(45) >> 1) then (


This will not repeat so fast, although it will still be possible to hold down the key and reduce stamina fast.


If you really want to make sure that each keypress is only handled once with NO repeats for being held down, then you need to use a global variable.

Code:

if(key is pressed(45) && stamina key==false) then(
  stamina key := true
  # the rest of the stuff that happens for stamina
)else(
  stamina key := false
)
­Mogri
Super Slime
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 PostMon Jan 11, 2010 4:26 pm
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Slight problem with James's code:

Code:
if(key is pressed(45) && stamina key==false) then(
  stamina key := true
  # the rest of the stuff that happens for stamina
)else(
  if (key is pressed(45) == false) then (stamina key := false)
)


The second-to-last line needs to check if the key is still held down; otherwise, you're going to have the same problem at half the rate.
Mega Tact v1.1
Super Penguin Chef
Wizard Blocks
­Bob the ­Hamster
Liquid Metal King Slime
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 PostMon Jan 11, 2010 4:30 pm
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Oh, right. I guess what I meant was:

Code:

if(key is pressed(45)) then(
  if(stamina key==false) then(
    stamina key := true
    # the rest of the stuff that happens for stamina
  )
)else(
  stamina key := false
)


but Mogri's way is good too.
­Meatballsub
Liquid Metal Slime
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 PostMon Jan 11, 2010 7:06 pm
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Thanks for the help! I knew it was a quick fix V
Cornbread Chemist
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