AlliedModders - [Solved] First time creating natives

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LiveAndLetDie

03-31-2021 22:51

First time creating natives

Hey, I am learning how to create natives and after reading the article on wiki I came up with this. Does it seem correct? At least it works but it doesn't necessarily mean that's it's 'smartly' done.

.inc file

Code:

/**

 * Check if a client has a certain admin flag.

 *

 * @param num1    a client.

 * @param num2    a flag.

 * @return        True if the client has the flag, false otherwise.

 */

 

 native bool CheckClientFlag(int client, char[] flag);

.sp file

Code:

public APLRes AskPluginLoad2(Handle myself, bool late, char[] error, int err_max)

{

        CreateNative("CheckClientFlag", Native_FlagHelper);

        return APLRes_Success;

}



public any Native_FlagHelper(Handle plugin, int numParams)

{

        int client = GetNativeCell(1);

        char flag = view_as<int>(GetNativeCell(2));

        return(CheckCommandAccess(client, "", flag, true));

}

example

Code:

CheckClientFlag(client, "b");

LiveAndLetDie

03-31-2021 23:08

Re: First time creating natives

And yes, I know that a native like that doesn't make much sense but it's just an example.

Cruze

04-01-2021 01:31

Re: First time creating natives

PHP Code:


		
			
public any Native_FlagHelper(Handle plugin, int numParams)
{
    int client = GetNativeCell(1);
    char flag[5];
        GetNativeString(2, flag, 5);
    return(CheckCommandAccess(client, "", ReadFlagString(flag), true));
}

Rest seem correct to me

asherkin

04-01-2021 19:45

Re: First time creating natives

FYI, it isn't safe (or sane) to pass an empty command string to CheckCommandAccess.

LiveAndLetDie

04-01-2021 21:59

Re: First time creating natives

Quote:

Originally Posted by Cruze (Post 2742595)

PHP Code:


		
			
public any Native_FlagHelper(Handle plugin, int numParams)

{

    int client = GetNativeCell(1);

    char flag[5];

        GetNativeString(2, flag, 5);

    return(CheckCommandAccess(client, "", ReadFlagString(flag), true));

}

Rest seem correct to me

Thanks!

Quote:

Originally Posted by asherkin (Post 2742691)

FYI, it isn't safe (or sane) to pass an empty command string to CheckCommandAccess.

Why is that? Especially if one doesn't have a need to check overrides or commands.

ThatKidWhoGames

04-01-2021 22:01

Re: First time creating natives

Quote:

Originally Posted by LiveAndLetDie (Post 2742696)

Thanks!

Why is that? Especially if one doesn't have a need to check overrides or commands.

You can directly check if they have a certain flag through GetUserAdmin and checking if they have access to a certain flag.

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