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Writing an module.


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Craxor
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Join Date: Jan 2016
Location: Romania
Old 01-10-2017 , 10:15   Writing an module.
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Hello guys, i have someeee questions, i'm realy noob so be patient with me

ok

1 . - amxmodx SDK and HLSDK , Microsoft Visual Studio are the only things i need to write a module ? ( i have also metamod sdk ).


2. For compiling the following code ( i'm trying to make a simple native just for learn ) i don't need metamod sdk no ? i read some tut. but are they very confusing , i learn more when i talk with people so :

PHP Code:
#include "amxxmodule.h"


// Empty an array, like array_set,  but that's require just the array: empty_array( Array )
static cell AMX_NATIVE_CALL empty_array(AMX *amxcell *params)
{
    
cell *Arr get_amx_addr(amxparams[1]);

    for (
int i 0i<sizeof(Arr); i++)
    {
        
Arr[i] = 0;
    }
}

AMX_NATIVE_INFO EmptyArray_Natives[] =
{
    { 
"empty_array" ,empty_array };
    { 
NULL,        ,NULL }
};

void OnAmxxAttach(EmptyArray_Natives)
{
    
MF_AddNatives(EmptyArray_Natives);


So ... i'm very confused if somebody can give me some answers
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WildCard65
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Old 01-10-2017 , 17:34   Re: Writing an module.
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1) Correct, general AMXX development requires AMXX source, MM source and HLSDK
2) Yes, only using API of AMXX allows you to only require AMXX source.

Note: Your native runs the risk of corrupting memory for the following reason:
sizeof() is a constexpr, what this means is that it's value is obtained at compile time of your module, so basically, your for loop iterates the values of 0, 1, 2, 3 (pointers are 4 bytes long, aka 32 bit integers, on 32bit machines), you have no guarantee input array is 16 bytes long (AMXX cells are 32-bit integers, 4 bytes, multiplied by 4 for num indexes your iterating), you 100% must have a parameter in your native definition to pass array's size in PAWN and use that param in your callback.
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meTaLiCroSS
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Old 01-10-2017 , 21:27   Re: Writing an module.
Reply With Quote #3

Better look this:

https://github.com/alliedmodders/amx...modx.cpp#L4397
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You're right Metalicross
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edon1337
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Old 01-17-2017 , 16:48   Re: Writing an module.
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I wish Metamod and AMXX were written in C# : (
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WildCard65
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Old 01-18-2017 , 16:51   Re: Writing an module.
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Quote:
Originally Posted by edon1337 View Post
I wish Metamod and AMXX were written in C# : (
That would require a C++ to C# binding API layer (either C++ /CLR or PInvoke).
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edon1337
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Old 01-19-2017 , 10:18   Re: Writing an module.
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Quote:
Originally Posted by WildCard65 View Post
That would require a C++ to C# binding API layer (either C++ /CLR or PInvoke).
Eh, you're right at all. C# is mostly for apps, what about Java though?
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WildCard65
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Old 01-19-2017 , 10:25   Re: Writing an module.
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Quote:
Originally Posted by edon1337 View Post
Eh, you're right at all. C# is mostly for apps, what about Java though?
same requirement as C# except using the JNI (and creating a Java VM instance at runtime of the binding API).
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Shooting King
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Old 01-20-2017 , 04:31   Re: Writing an module.
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What ? C# and Java ? When the original application i.e game engine is restricted to desktop environment, whats the use ? Unless for more overhead ?
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WildCard65
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Old 01-20-2017 , 07:15   Re: Writing an module.
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Quote:
Originally Posted by Shooting King View Post
What ? C# and Java ? When the original application i.e game engine is restricted to desktop environment, whats the use ? Unless for more overhead ?
probably for OOP.
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edon1337
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Old 01-20-2017 , 13:49   Re: Writing an module.
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Is there OOP support in PAWN ?
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