So.. i tryed to get 2 classes to work together.... it gets stray \240 and \302
it says that the class 'Troll' wont resond to any of the methods that are in it and it SPAT IN MY FACE!!!!

code:

myView.h


myView.m


Troll.h


Troll.m


most of the stray \... errors are at the begining of Troll.m and there is a parse error before the - in - (id)init {}

how many things did i mess up!?!?


edit: thats odd.... theres little random * in the code pasted here... although that isnt accually in my code.... i bet those are my \302 and \240

edit edit: got rid of those now there are two errors..... both in Troll.m
1) parse error token before '-' (on the line with - (id)init)
2) fatal error: method definition not in class context (on line with - (int)xOfTroll: (int)i; )

soo yea.... whats with that??!!

edit edit edit: for no apperent reason it just added warnings everywhere in myView.m saying that Troll wont respond to the methods that are in Troll.... im scared

type this into the terminal: defaults write com.apple.xcode NSTextShowsControlCharacters 'YES'

Did you by chance copy code off a web page and paste it in? That's where the \xxx characters usually come from.

Coin Wrote:edit edit: got rid of those now there are two errors..... both in Troll.m
1) parse error token before '-' (on the line with - (id)init)
2) fatal error: method definition not in class context (on line with - (int)xOfTroll: (int)i; )

soo yea.... whats with that??!!

Look closely at the end of those lines.

Wade

Let's talk about preprocessor defines. You defined "o" to be replaced by NSCompositeSourceOver. Now a quick find a replace will show you what your file looks like to the compiler.


Now, just guess why it's pissing at you. So you need to use those defines in such a manner as the string isn't one you'll normally use. Maybe NSCSO would be a better choice. You aren't likely to have that in some stray place in that file or files which include that file. So fix that and see if it helps any of your problems.

i got a stray /23 when i tried to save by control-x control-s.

iefan Wrote:Let's talk about preprocessor defines. You defined "o" to be replaced by NSCompositeSourceOver. Now a quick find a replace will show you what your file looks like to the compiler.

While this particular #define doesn't seem like such a great idea to me, it doesn't actually cause any problems. The preprocessor replaces tokens, not substrings.

wadesworld Wrote:Did you by chance copy code off a web page and paste it in? That's where the \xxx characters usually come from.

no.

I did the termianl thing.. im guessing that ill allow me to see weird characters?

I chaned the o thing

All the errors/warnings are exactly the same

New Code:

The only difference is the NSCSO

errors:

parse error before token '-'
on line:


fatal error: method definition not in class definition
on line:



warnings:

there are 8 warnings

one on every line in myView.m that had a [Troll bla!]; in it had a warning that says
Troll may not respond '+theMethodBeingCalled'

what's the code? give us an example of how you call it. You may have to say a [[Troll alloc] bla!]; instead.

It's one of the things which I have never really considered. I know it works when I need it to. Now I know.

i used

[[Troll alloc] resetTrolls];

for all my calls to Troll and it got rid of all the warnings

now there are just two errors in Troll.m

here is troll.m and .h

.h


.m


there errors are the same as before....
a fatal error saying that the first method isnt defined, and a parse before the - in -(id)init

Its because I had a : after the class name on the first line

After i fixed that i spelled retain reatain

Now it has no errors or warnings

But it crashes... here is the good-sorta code

Troll.h


Troll.m


myView.h


myView.h


With this code when I load a level with 2 trolls in it this is what happens :
1) resetTrolls
2) newTrollAtIndex:i X:x Y:y
3) newTrollAtIndex:i X:x Y:y
4) crash!

Debugger didnt give me anything but machine code
when I put a display dialog in -open right after the timer it runs
but if I stick it on the first line of -moveTrolls: it crashes before showing....

apperently nothing is wrong

Coin Wrote:i used

[[Troll alloc] resetTrolls];

for all my calls to Troll and it got rid of all the warnings

LOL Good one! No, seriously that is NOT what you want!
Look in the docs for the meaning of class & instance methods.

Basically, resetTrolls (declared with a -) is an instance method, and if you call [Troll resetTrolls] it doesn't work because that would mean you want to call a class method (+resetTrolls).
When you do [Troll alloc], you create an instance, so if you call [[Troll alloc] resetTrolls] you are calling the instance method BUT every time you call [Troll alloc] you are actually creating a new different instance (and leaking memory).

Coin Wrote:there errors are the same as before....
a fatal error saying that the first method isnt defined, and a parse before the - in -(id)init

Read that error closely: "before the - in -(id)init"...
Delete the : in @implementation Troll:
...also, reatain != retain

Good, you caught the : and the reatain before I finished my post. Read the first part though

i changed all the - (SomeMethod) to + (someMethod) in Troll.h and Troll.m exept -(id)init

now there are 10 warnings in Troll.m saying i cant use xpot or ypot (x position of troll, y position of troll)

so how do i fix that ... AND stuff

Well, those are instance variables, so the class methods can't access them. Perhaps what you want is just one shared Troll instance? The easier way for you would be to simply add Troll *myTroll; to your GameView class, alloc and init it once ( myTroll = [[Troll alloc] init]; ) and then simply use [myTroll doSomething]; elsewhere.

The alternative would be a "Singleton" with a sharedInstance method to access a single global instance, but the first alternative would do OK.