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C++ Question [message #339983]

Wed, 09 July 2008 14:21

HeavyX101- Left
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Registered: April 2008
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Colonel

I'm just wondering what word stands for "word" in C++.
For example, int stands for numbers.
What word stands for "word" in c++.

Examples:

int preset = atof(Text[1].c_str()); = finds the number from the message.
??? preset = atof(Text[1].c_str()); = finds the word from the message.

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Re: C++ Question [message #339988 is a reply to message #339983]

Wed, 09 July 2008 14:29

dead6re
Messages: 602
Registered: September 2003

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Colonel

"word" does not exist. There is a replacement called char which is an array. Or however you can look at the STD library for std::string.

int atoi( const char *str );
double atof( const char *str );
long atol( const char *str );

Most of the time you can cast between
int -> double/float

Don't go the other way though as you lose the decimal places.

Let all your wishes be granted except one, so you will still have something to strieve for.

[Updated on: Wed, 09 July 2008 14:32]

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Re: C++ Question [message #339990 is a reply to message #339988]

Wed, 09 July 2008 14:42

N1warhead
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dead6re wrote on Wed, 09 July 2008 16:29

"word" does not exist. There is a replacement called char which is an array. Or however you can look at the STD library for std::string.

int atoi( const char *str );
double atof( const char *str );
long atol( const char *str );

Most of the time you can cast between
int -> double/float

Don't go the other way though as you lose the decimal places.

Hmm STD Library?

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Re: C++ Question [message #339999 is a reply to message #339983]

Wed, 09 July 2008 15:07

GrimmNL
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Recruit

lol

Big Grin

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http://members.lycos.nl/signature/grimm

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Re: C++ Question [message #340000 is a reply to message #339988]

Wed, 09 July 2008 15:21

HeavyX101- Left
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Registered: April 2008
Location: WindowsJail=ZipFolder

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Colonel

dead6re wrote on Wed, 09 July 2008 17:29

"word" does not exist. There is a replacement called char which is an array. Or however you can look at the STD library for std::string.

int atoi( const char *str );
double atof( const char *str );
long atol( const char *str );

Most of the time you can cast between
int -> double/float

Don't go the other way though as you lose the decimal places.

Thanks for the fast reply, but i didnt find anything that could go in this(HERE) :

Quote:

HERE preset = atof(Text[1].c_str()); = finds the word from the message.

Does anyone know it. Reborn could of help if i didnt ***** but thats life. Sad

Sad

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Re: C++ Question [message #340008 is a reply to message #339983]

Wed, 09 July 2008 16:57

=HT=T-Bird
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Colonel

You should either use (const) char* or std::string. char* is marginally faster, but it's easier to make silly, sloppy, and sometimes exploitable errors with it. BTW, you don't need to call an extra function, as Text[1] is already an std::string and .c_str() gives you a char* from it.

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[Updated on: Wed, 09 July 2008 17:00]

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Re: C++ Question [message #340009 is a reply to message #340008]

Wed, 09 July 2008 17:27

HeavyX101- Left
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Colonel

Ok, this is what i did:

char* preset = atof(Text[1].c_str());

And i got a error:

Error	1	error C2440: 'initializing' : cannot convert from 'double' to 'char *'	c:\Westwood\RenegadeFDS\Server\gmmain.cpp	2477

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Re: C++ Question [message #340014 is a reply to message #340009]

Wed, 09 July 2008 18:26

saberhawk
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General (1 Star)

HeavyX101 wrote on Wed, 09 July 2008 19:27

Ok, this is what i did:

char* preset = atof(Text[1].c_str());

And i got a error:

Error	1	error C2440: 'initializing' : cannot convert from 'double' to 'char *'	c:\Westwood\RenegadeFDS\Server\gmmain.cpp	2477

atof returns a float or a double...

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Re: C++ Question [message #340017 is a reply to message #340014]

Wed, 09 July 2008 18:31

HeavyX101- Left
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Colonel

Now, i got this:

char* preset = Text[1].c_str();

And the error i got is:

Error	1	error C2440: 'initializing' : cannot convert from 'std::string' to 'char *'	c:\Westwood\RenegadeFDS\Server\gmmain.cpp	2477

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Re: C++ Question [message #340113 is a reply to message #339983]

Thu, 10 July 2008 09:11

dead6re
Messages: 602
Registered: September 2003

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Colonel

I knew someone was going to make that reference to STDs... :S Oh well.

You need to cast the function to become a char*.
Currently you have

char *preset = const char *c_str();

Notice the const? It isn't the same on each side.

Either:

Correctness (Warning: You cannot edit a const char):

const char *preset = Text[1].c_str();

OR:

Casting:

char *preset = (char *)Text[1].c_str();

Let all your wishes be granted except one, so you will still have something to strieve for.

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Re: C++ Question [message #340114 is a reply to message #340113]

Thu, 10 July 2008 09:33

HeavyX101- Left
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Colonel

Thanks

Very Happy

That helped me alot now Smile

Smile

Anyways, the line i'm using it for got error. I dont think that i used the "preset" thing right Razz

Razz

	GameObject *object = Commands->Create_Object(preset,position);

Error	1	error C2220: warning treated as error - no 'object' file generated	c:\Westwood\RenegadeFDS\Server\gmmain.cpp	2487

Plus a warning:

Warning	2	warning C4189: 'object' : local variable is initialized but not referenced	c:\Westwood\RenegadeFDS\Server\gmmain.cpp	2487

It would be nice if you would help, but if you dont know, then it is ok.

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Re: C++ Question [message #340143 is a reply to message #340114]

Thu, 10 July 2008 13:33

HeavyX101- Left
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Colonel

Anyone knows how to fix it?

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Re: C++ Question [message #340156 is a reply to message #340143]

Thu, 10 July 2008 14:08

saberhawk
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Registered: January 2006
Location: ::1

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General (1 Star)

HeavyX101 wrote on Thu, 10 July 2008 15:33

Anyone knows how to fix it?

Don't create a variable if you aren't going to use it. Just use Commands->Create_Object at the start of the line...

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Re: C++ Question [message #340168 is a reply to message #340156]

Thu, 10 July 2008 15:29

HeavyX101- Left
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Colonel

Thanks man, it compiled now. But the game doesnt really work, the preset name i give doesnt deploy.
Anyways, that is my part to fix now. Thanks guys!

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Re: C++ Question [message #340314 is a reply to message #339983]

Fri, 11 July 2008 10:19

dead6re
Messages: 602
Registered: September 2003

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Colonel

Post your source?

Let all your wishes be granted except one, so you will still have something to strieve for.

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Re: C++ Question [message #340319 is a reply to message #340314]

Fri, 11 July 2008 10:38

HeavyX101- Left
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Colonel

//Made By Ferkhat Shubladze
class presetbuildChatCommand : public ChatCommandClass {
	void Triggered(int ID,const TokenClass &Text,int ChatType) {
		GameObject *obj = Get_GameObj(ID);


char *preset = (char *)Text[1].c_str();

Vector3 position;
position = Commands->Get_Position(obj);
position.Z += 0;
position.X += (float)(5*cos(Commands->Get_Facing(Get_GameObj(ID))*(3.14 / 180)));
position.Y += (float)(5*sin(Commands->Get_Facing(Get_GameObj(ID))*(3.14 / 180))); // this is gonna be fixed soon
 {

Commands->Create_Object(preset,position);
Console_Input(StrFormat("msg WORKS!").c_str());
	Commands->Set_Facing(obj, Commands->Get_Facing(obj)-180);

 }
	}
	
};
ChatCommandRegistrant<presetbuildChatCommand> presetbuildChatCommandReg("!pbuild",CHATTYPE_ALL,1,GAMEMODE_AOW);

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[Updated on: Fri, 11 July 2008 10:39]

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Re: C++ Question [message #340354 is a reply to message #339983]

Fri, 11 July 2008 13:07

dead6re
Messages: 602
Registered: September 2003

Karma: 0

Colonel

class presetbuildChatCommand : public ChatCommandClass {
	void Triggered(int ID,const TokenClass &Text,int ChatType) {
		GameObject *obj = Get_GameObj(ID);


		char *preset = (char *)Text[1].c_str();

		Vector3 position;
		position = Commands->Get_Position(obj);
		position.Z += 0;
		position.X += (float)(5*cos(Commands->Get_Facing(Get_GameObj(ID))*(3.14 / 180)));
		position.Y += (float)(5*sin(Commands->Get_Facing(Get_GameObj(ID))*(3.14 / 180)));

		Commands->Create_Object(preset, position);
		Console_Input(StrFormat("msg WORKS!").c_str());
		Commands->Set_Facing(obj, Commands->Get_Facing(obj) - 180);
	}	
};
ChatCommandRegistrant<presetbuildChatCommand> presetbuildChatCommandReg("!pbuild",CHATTYPE_ALL,1,GAMEMODE_AOW);

I would just check where the position is because you are altering it, I've had enough core 4 [intergration of trig functions] this year so I'm not checking it.

My other advice would be to make sure you are sending a valid preset as found in renedit.

Let all your wishes be granted except one, so you will still have something to strieve for.

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Re: C++ Question [message #340470 is a reply to message #340354]

Sat, 12 July 2008 08:59

HeavyX101- Left
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Registered: April 2008
Location: WindowsJail=ZipFolder

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Colonel

Nope, doesnt work.
I think it is still this line:

char *preset = (char *)Text[1].c_str();

It wont read the word/preset name from the message.

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