too many variables?

[cutecotton]

hi everyone, what i'm trying to do with my program is i'll have 5 litlte buttons, and the buttons will change when the user runs their mouse over it. So let's say for button 1 i have 2 variables for it, one contains the pic b4 the mouse is run over, the 2nd contains the pic that will be dispalyed when the mouse is over it.

Now my question is, i'll have to do that for all 5 buttons, so does that mean i'll have to declare 10 variables? since i'll need 2 for each button? that seems to take a lot of...well variables and i don't know if there's a limit of the amoutn of varaibles i can declare.

is there a more efficient way of doing this? or will i really have to declare a variable for every single pic i put on screen?

[Tony]

try using arrays.

code:

var picID : array 1..5, 1..2 of int for i:1..5     for i2:1..2          picID(i,i2) := Pic.FileNew("image"+i+i2)     end for end for

that assuming you know what arrays are.

[cutecotton]

*ahem* goes to find an array tutorial

hmm...well i found an array tutorial and tried to understand it best as ic an..so from waht u posted..

var picID : array 1..5, 1..2 of int
for i:1..5
for i2:1..2
picID(i,i2) := Pic.FileNew("image"+i+i2)
end for
end for

u have 5 variables, and within them there's 2. What i dont' get is this line:

code:

picID(i,i2) := Pic.FileNew("image"+i+i2)

I undersantd the Pic.FileNew, and then u put hte filename in replacement of image, but wha'ts the +i+i2 thing?

[/code]

[Tony]

http://www.compsci.ca/v2/viewtopic.php?t=71

though it was intended for Visual Basic.

But it explains what arrays are and how to use them.

In turing you declear arrays as

var arrayname : array first demention , second demention , etc of type

where dementions are ranges such as 1..10 (1 to 10) and work same as in for loop

type is string/int/real/etc

array variable is accessed using

arrayname(1st demention , 2nd demetion)

as in arrayname(5,2)

[cutecotton]

ooo i get it...*kinda* have to test it out myself to se eif it works..will post back in a few minutes ^^

[cutecotton]

right..so now what do i do if i wanna use the variables and make them show up?

sof ar i go:

code:

var buttons : array 1 .. 5, 1 .. 2 of int     for b1 : 1 .. 5         for b2 : 1 .. 2             buttons (b, b1) := Pic.FileNew ("lvl1a.bmp")         end for     end for loop         Mouse.Where (x, y, b)         if x >= 60 and x <= 212 and y >= 130 and y <= 173 then             Pic.Draw (buttons, 60, 130, picCopy)         else             Pic.Draw (b, 60, 130, picCopy)         end if     end loop

so in my Pic.Draw (buttons, 60, 130, picCopy)...i don't know what i shoudl put in replacement of my "button"?

[Tony]

it should be

button(1,1) for first button, 1st view
button(1,2) for first button, 2nd view

etc...

button(5,2) is 5th button, 2nd view

instead of numbers you can use variables to make it easier.

such as

button(x,y)

[cutecotton]

hmm yeah, but then each button woudl have a differnet file. Example (the goal here is that i have 5 levels, and the user select which lvl they want. So lvl 1 would have 2 pics, but ecah lvl's pic is differnt, cuz the pic woudl say lvl 1 for lvl1, lvl 2 for lvl 2, etc)

So what i did was i used arry to delcare all the variables, and then i just took ecah one and idenfied it. So i have something like

code:

var buttons : array 1 .. 5 of int var buttons2 : array 1 .. 5 of int buttons (1) := Pic.FileNew ("lvl1a.bmp") buttons (2) := Pic.FileNew ("lvl2a.bmp") buttons (3) := Pic.FileNew ("lvl3a.bmp") buttons (4) := Pic.FileNew ("lvl4a.bmp") buttons (5) := Pic.FileNew ("lvl5a.bmp") buttons2 (1) := Pic.FileNew ("lvl1c.bmp") buttons2 (2) := Pic.FileNew ("lvl2c.bmp") buttons2 (3) := Pic.FileNew ("lvl3c.bmp") buttons2 (4) := Pic.FileNew ("lvl4c.bmp") buttons2 (5) := Pic.FileNew ("lvl5c.bmp")

[/code]

[Albrecd]

Or you could just declare 10 variables... it's not really that many... and it doesn't matter because there's no limit.

[do_pete]

yeah but array are more efficient

[do_pete]

wow i just realized that this topic is from Tue Dec 24, 2002. you realize that was almost THREE YEARS AGO

[MysticVegeta]

yeah i was wondering how come no one pointed it out, anyways, instead of going buttons(1), buttons(2)
why not

PSEUDOCODE

code:

for s : 1..5 buttons(s) := Pic.FileNew("lvl"+intstr(s)) end for

Smart way to do it

[Cervantes]

Albrecd wrote:

Or you could just declare 10 variables... it's not really that many... and it doesn't matter because there's no limit.

You couldn't be more wrong.
Compared to one, ten is a lot.
And you say there's no limit. If that's true, that makes your method even worse.

[codemage]

I'm sure cutecotton has either solved this problem or given up by now.

[Cervantes]

codemage wrote:

I'm sure cutecotton has either solved this problem or given up by now.

Yeah, but Albrecd hasn't solved his problem.