AlliedModders - [Solved] [HELP] Finding Players Around Point

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[HELP] Finding Players Around Point

I'm looking for a way of finding players around a point where a shot has landed, much like the find_sphere_class function. However, that function uses an entity instead of coordinates, which I plan to get from Ham_TraceAttack.

Anyone know a way? Been searching for 2 days now but all I get are normal get_players functions, nothing relevant...

Re: [HELP] Finding Players Around Point

You could try hooking FM_TraceLine with get_tr2 and retrieving the end vector (TR_vecEndPos), and then checking in the radius of the float that you stored the result of get_tr2.

Re: [HELP] Finding Players Around Point

Quote:

Originally Posted by E1_531G (Post 2666088)

https://www.amxmodx.org/api/amxmodx/get_user_origin mode = 4
https://www.amxmodx.org/api/engine/find_ent_in_sphere

Wait, I've seen find_ent_in_sphere before. But what I don't get is what use start_from_ent if you already have an origin to base something around? And should the start_from_ent the shooter?...

Re: [HELP] Finding Players Around Point

Quote:

Originally Posted by edon1337 (Post 2666089)

You could try hooking FM_TraceLine with get_tr2 and retrieving the end vector (TR_vecEndPos), and then checking in the radius of the float that you stored the result of get_tr2.

Thank you. I can't honestly say I understand it. I would like some sample codes but if that's too much spoon-feeding in your opinion, I will try to study the method. Either way, I very much appreciate the lead...

Re: [HELP] Finding Players Around Point

Hook Ham_TraceAttack, get the TR_vecEndPos and use the following code to search for players within a radius.

PHP Code:


		
			
#include <engine>

...

#if !defined MAX_PLAYERS
    #define MAX_PLAYERS 32
#endif

...

get_players_in_radius(players[MAX_PLAYERS], &num, const Float:origin[3], const Float:radius)
{
    // a - Do not include dead players
    // h - Do not include HLTV proxies
    new _players[MAX_PLAYERS], _num;
    get_players(_players, _num, "ah");

    num = 0;

    for (new i = 0, player, Float:_origin[3]; i < _num; i++)
    {
        player = _players[i];
        entity_get_vector(player, EV_VEC_origin, _origin);

        if (vector_distance(origin, _origin) > radius)
            continue;

        players[num] = player;
        num++;
    }
}

...

// Usage example
new players[MAX_PLAYERS], num, Float:origin[3];
get_players_in_radius(players, num, origin, 240.0);

Re: [HELP] Finding Players Around Point

Quote:

Originally Posted by CrazY. (Post 2666095)

Hook Ham_TraceAttack, get the TR_vecEndPos and use the following code to search for players within a radius.

PHP Code:


		
			
#include <engine>



...



#if !defined MAX_PLAYERS

    #define MAX_PLAYERS 32

#endif



...



get_players_in_radius(players[MAX_PLAYERS], &num, const Float:origin[3], const Float:radius)

{

    // a - Do not include dead players

    // h - Do not include HLTV proxies

    new _players[MAX_PLAYERS], _num;

    get_players(_players, _num, "ah");



    num = 0;



    for (new i = 0, player, Float:_origin[3]; i < _num; i++)

    {

        player = _players[i];

        entity_get_vector(player, EV_VEC_origin, _origin);



        if (vector_distance(origin, _origin) > radius)

            continue;



        players[num] = player;

        num++;

    }

}



...



// Usage example

new players[MAX_PLAYERS], num, Float:origin[3];

get_players_in_radius(players, num, origin, 240.0);

I will try this next, thank you. Right after I've fiddled enough with what E1_531G suggested. I think he meant using both functions. I'm still new to vectors, origins, velocities and all that so I want to experiment with as much methods as I can...

Re: [HELP] Finding Players Around Point

Quote:

Originally Posted by hellmonja (Post 2666092)

Wait, I've seen find_ent_in_sphere before. But what I don't get is what use start_from_ent if you already have an origin to base something around? And should the start_from_ent the shooter?...

For the first search you use start_from_ent = -1, but when you need to find more than one ent you have to use start_from_ent = index-of-the-previous-ent for the 2nd and next searches. (if not doing this, it will find the same ent every time).

And yes, get_user_origin() wint mode = 4 will return the position (origin) of last bullet hit.

Re: [HELP] Finding Players Around Point

find_ent_by_sphere loop through all entities in the game and mine only through players. Not a big deal but it takes less process.

Re: [HELP] Finding Players Around Point

Take a look at this. It's not entirely what you're doing, but maybe you can take something from it.

https://forums.alliedmods.net/showthread.php?t=318524