escape release key not working - GameCreators Forum

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T4r4ntul4

14

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Joined: 1st Jan 2010

Location: close to my pc

Posted: 12th Jan 2010 15:56

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hi community, iam new in dbpro, and i like it so far.

iam busy making a program, but i get stuck in some code i writed:
see code:

+ Code Snippet

_control_escape:
rem mouse release
if escapekey() = 1

   show mouse

   x=mousex()
   y=mousey()

   if x<0 then position mouse 0,y
   if x>1024 then position mouse 1024,y
   if y<0 then position mouse x,0
   if y>768 then position mouse x,768

else
rem ingame
if escapekey() = 0

   rotate camera camera angle x(0)+(mousemovey()/2.0),camera angle y(0)+(mousemovex()/2.0),0

   x=mousex()
   y=mousey()

   if x<512 then position mouse 512,y
   if x>512 then position mouse 512,y
   if y<384 then position mouse x,384
   if y>384 then position mouse x,384

endif
endif

return

so my intention was if i pressed the ESC key, i wanted to release the mouse, otherwise if i not press the ESC key, my mouse key is not released, which its good.

but and heres my question, why is it not working? i keep press the esc key and the release key is working, if i not press the esc key its not working... i dont get it.

so would anyone help me with this? thanx already.

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TDK

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Joined: 19th Nov 2002

Location: UK

Posted: 12th Jan 2010 20:17

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The Escape key is a system key used by DB to exit a program and might be interfering with what you want to do.

I'm no DBPro expert, but in DBC there's the Disable SystemKeys and Disable EscapeKey commands. Have you tried either of them elsewhere in your program?

TDK

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T4r4ntul4

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Joined: 1st Jan 2010

Location: close to my pc

Posted: 12th Jan 2010 23:12

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yes i use disable escapekey once in the setup load. funny thing is when i press esc key my mouse is enabled, but the rest of the code seems not be executed...

so is my if then else statement correct?

thanx for helping me.

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Grog Grueslayer

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Joined: 30th May 2005

Playing: Green Hell

Posted: 13th Jan 2010 08:05 Edited at: 13th Jan 2010 08:05

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There's no need to have another IF statement if you use ELSE because if escapekey() = 1 the alternative is going to be zero anyway.

+ Code Snippet

_control_escape:
rem mouse release
if escapekey() = 1

   show mouse

   x=mousex()
   y=mousey()

   if x<0 then position mouse 0,y
   if x>1024 then position mouse 1024,y
   if y<0 then position mouse x,0
   if y>768 then position mouse x,768

else
rem ingame

   rotate camera camera angle x(0)+(mousemovey()/2.0),camera angle y(0)+(mousemovex()/2.0),0

   x=mousex()
   y=mousey()

   if x<512 then position mouse 512,y
   if x>512 then position mouse 512,y
   if y<384 then position mouse x,384
   if y>384 then position mouse x,384

endif

return

The below code is being seen but it doesn't pay attention to it because it checks for mouse coordinates outside of the Darkbasic window. Darkbasic won't ever force the mouse back to allow the user to use other windows.

+ Code Snippet

   if x<0 then position mouse 0,y
   if x>1024 then position mouse 1024,y
   if y<0 then position mouse x,0
   if y>768 then position mouse x,768

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T4r4ntul4

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Joined: 1st Jan 2010

Location: close to my pc

Posted: 13th Jan 2010 13:54

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well that cleared up grog.

but still i dont understand why if i press the ESC key, i can still look around... but thats not in my code.

why doesnt stay the variable of escapekey() in 1? it goes right back to 0 if i dont press the esc key...

so how do i change the code so if i press the escape key the variable is still 1..?

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LBFN

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Joined: 7th Apr 2007

Location: USA

Posted: 13th Jan 2010 15:30 Edited at: 19th Jan 2010 20:13

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Might I suggest that using the escape key as a toggle for allowing camera movement and mouse placement is not a good idea? Why not use the space bar or return key? How is the person going to get out of your program?

Quote: "still i dont understand why if i press the ESC key, i can still look around"

It is in your code. You are looking at the status of the escape key on an ongoing basis. If you let go of the key, the value it returns is 0. To get it to do what (I think) you want, you would have to save the status of the escapekey to a variable. You could do it like this:

+ Code Snippet

esc = 0 : KeyTimer# = timer()
repeat
  e = escapekey()
  if e = 1 and timer() > KeyTimer#
    if esc = 1 : esc = 0 : else : esc = 1 : endif
    KeyTimer# = timer() + 100
  endif
  gosub _control_escape
  text 10,10,"Esc = " + str$(esc)
  sync
until spacekey() = 1

Hope this helps.

Click my sig to download TGC Heroes v0.94.

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T4r4ntul4

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Joined: 1st Jan 2010

Location: close to my pc

Posted: 13th Jan 2010 17:50

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thanx LBFN,

that did the trick. i modified your code to my own needs, buts its working now.

Quote: "How is the person going to get out of your program?"

well thats my next step, if the user pressed esc, the mouse is released for doing other things. like clicking in a menu. then the user would click on exit, or resume or whatever. but thats what im working now on.

thnx all for helping me out.

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