my button function - GameCreators Forum

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JoelJ

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Posted: 29th Dec 2003 00:21 Edited at: 29th Dec 2003 00:23

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i just made a button function:

+ Code Snippet

function button(x, y, xsize, ysise, image_up, image_down, changing_var#, move, mousex, mousey,)
   if mousex > x and mousex < x + xsize and mousey > y and mousey < y + ysize
      paste image image_up, x, y
      if mouseclick() = 1
         paste image image_down, x, y
         changing_var# = changing_var# + move
      endif
   else
      paste image image_up, x, y
   endif
endfunction

and this is how i call it:

+ Code Snippet

button((buttonx - 32), (buttony - 16), 16, 16, 109, 110, camy#, 1, mousex(), mousey())

{buttonx = screen width() - 16 and buttony = screen height - 16)

ok, now to explain what's wrong:
i made this function from this code here:

+ Code Snippet

   if mousex() > buttonx - 32 and mousex() < buttonx - 16 and mousey() > buttony - 16 and mousey() < buttony
      paste image 109, buttonx - 32, buttony - 16
      if mouseclick() = 1
         paste image 110, buttonx - 32, buttony - 16
         dec camy#
      endif
   else
      paste image 109, buttonx - 32, buttony - 16
   endif

and that code works fine. but the function doesnt. it puts the image where i want it to be, but when i click on the image, it doesnt put the picture over it OR change camy#. anyone know whats wrong?

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Jess T

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Posted: 29th Dec 2003 08:17

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keep the paste image commands out side of the functions.

Try something like:

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If _in_zone(20,20,50,50) = 1 Then Paste Image num,x,y


Function _in_zone(x1,y1,x2,y2)

   inzone = 0
   If MouseX() > x1 And MouseY() > y1 And MouseX() < x2 And MouseY() < y2
      inzone = 1
   EndIf

EndFunction inzone

For the rest, I'm not sure, my brain is a bit worn out, sorry.

Hope I Helped...

Team EOD :: Programmer/Logical Engineer/All-Round Nice Guy

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JoelJ

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Posted: 29th Dec 2003 08:20

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hrm, i dont think thats really a problem...i mean, it displays the picture fine. its just the mouse over that it doesnt get. and if i were to do it that way, i would just rather have it the way it was before...

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Jess T

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Posted: 29th Dec 2003 08:36

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Um, ok... Hang on a sec, I'll have one for you in a moment.

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Jess T

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Posted: 29th Dec 2003 08:46 Edited at: 29th Dec 2003 08:47

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Actually, going over your code, it's not working because you aren't using global variables.

You must remember that anything that happens to a variabel inside a function is local to the functino and makes no difference to any variable outside the function.

Simply place GLOBAL infront of where the variable is first set up ( ie, changing_var# ) but, it must be outside of the function. That way, the variable will be updated.

I am assuming you are using the GLOBAL extended syntax provided by DarkEDIT...

and, after writing that, i realised that there is an easier way.

Change the last line to:

+ Code Snippet

`This simply returns this value from the function.
EndFunction changing_var#

An when you call the function, use:

+ Code Snippet

changing_var# = button((buttonx - 32), (buttony - 16), 16, 16, 109, 110, camy#, 1, mousex(), mousey())

Hope I Helped...

Team EOD :: Programmer/Logical Engineer/All-Round Nice Guy

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JoelJ

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Posted: 29th Dec 2003 22:22 Edited at: 29th Dec 2003 22:31

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yeah, but where do you learn when you always use other's code?

thanx JT, i will try that and get back and tell you how it goes.

umm...didnt work...this is what im going to do...im going to change all my buttons (8 of em) to use this function...paste the code, and you peeps can tell me whats up

i just found two errors, one i already fixed before:
function button(x, y, xsize, ysise, image_up, image_down, changing_var#, move, mousex, mousey,)
ysize had a spelling error, and i had an extra ','

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JoelJ

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Posted: 29th Dec 2003 22:37 Edited at: 29th Dec 2003 23:10

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YES!! i got it working:
function:

+ Code Snippet

function button(x, y, xsize, ysize, image_up, image_down, changing_var#, move, mousex, mousey)
   if mousex > x and mousex < x + xsize and mousey > y and mousey < y + ysize
      paste image image_up, x, y
      if mouseclick() = 1
         paste image image_down, x, y
         changing_var# = changing_var# + move
      endif
   else
      paste image image_up, x, y
   endif
endfunction changing_var#

call:

+ Code Snippet

camz# = button(buttonx-16, buttony-32, 16, 16, 101, 102, camz#, 1, mousex(), mousey())

thanx a ton JT

heres a small preview of what iv done

http://www.geocities.com/deathlink84095/map2.zip

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Jess T

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Posted: 30th Dec 2003 05:00 Edited at: 30th Dec 2003 05:01

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It's cool. I'm just being a nice guy

Team EOD :: Programmer/Logical Engineer/All-Round Nice Guy

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DarkBASIC Discussion / my button function