[Nax0ne]

Hello everyone! How can I get an "entity" at random, as if it were a player, but in reality it is an NPC. For example, a random NPC is selected as a "hero" but I have done it in different ways and it does not work for me.


Help mee :'(

PHP Code:

make_npc_hero( )
{    
    new Array:entities = ArrayCreate(1, 32);    
    new ent = -1, iHero;
    
    while( ( ent = find_ent_by_class( ent, "npc" ) ) ) 
    {
         ArrayPushCell( entities, ent ); 
        new iNpcTotal = ArraySize( entities );    
        
        if ( random( iNpcTotal - 1 ) )
            g_iNPCIsHero[ ent ] = 1;
    }
    
    server_print( "CURRENT HERO %i", ent );
} 


[DjSoftero]

get all the npc ids, put them into an array, then choose a random number from 0 to the amount of npcs you have.
and then choose that element of an array you randomly generated.

edit...
I looked at the code after i wrote this, it seems you were trying to do what i just told you to.

i guess this would be more like it:

PHP Code:

public make_npc_hero( )
{    
    new Array:entities = ArrayCreate(1)  
    new ent = -1, iHero
    
    while((ent = find_ent_by_class(ent, "npc")))
         ArrayPushCell(entities, ent)

    new iNpcTotal = ArraySize(entities)
    new random_hero_id = ArrayGetCell(entities, random(iNpcTotal - 1))
    server_print("CURRENT HERO %i", random_hero_id)
} 


[Nax0ne]

Originally Posted by DjSoftero get all the npc ids, put them into an array, then choose a random number from 0 to the amount of npcs you have. and then choose that element of an array you randomly generated. edit... I looked at the code after i wrote this, it seems you were trying to do what i just told you to. i guess this would be more like it: PHP Code: public make_npc_hero( ) {         new Array:entities = ArrayCreate(1)       new ent = -1, iHero          while((ent = find_ent_by_class(ent, "npc")))          ArrayPushCell(entities, ent)     new iNpcTotal = ArraySize(entities)     new random_hero_id = ArrayGetCell(entities, random(iNpcTotal - 1))     server_print("CURRENT HERO %i", random_hero_id) }

Mmm i tested and it didn't work. But i changed this line:

PHP Code:

ArrayGetCell(entities, random(iNpcTotal - 1)) 


for this one:

PHP Code:

ArrayGetCell(entities, random_num(0, iNpcTotal - 1)) 


And it works ! Thank you man for your help.

[DjSoftero]

that can`t possibly be the reason for this not to work. those functions you showed are made the same way, exscept random_num() isn`t limited to 0 as a first number.

[edon1337]

random_num( 0, x )

and

random( x )

are the same.

They both will return a random number from 0 to x.

[Nax0ne]

Originally Posted by DjSoftero that can`t possibly be the reason for this not to work. those functions you showed are made the same way, exscept random_num() isn`t limited to 0 as a first number.

EDIT: Dont worry, i have solved the problem of saving the origin.

Mmm how i said, works for me the second line. I dont know why the first line doesn't work. or i did something unexpected haha...

But the function is perfect. However, when I want to detect the origin of that "random" entity (hero), it is not saved... how i can do to save the origin entity, in this case the "hero", to use for others functions (for example to calculate the distance between the hero and the player) ???

PHP Code:

public make_npc_hero( )
{    
    new Array:entities = ArrayCreate( 1 );  
    new ent = -1, Float:flOrigin[ 3 ];
    
    while ( (ent = find_ent_by_class( ent, "npc" ) ) )
        ArrayPushCell( entities, ent );

    new iNpcTotal = ArraySize( entities );
    new random_hero_id = ArrayGetCell( entities, random( iNpcTotal - 1 ) );
        
    server_print( "CURRENT HERO %i", random_hero_id );
    pev( random_hero_id, pev_origin, flOrigin );
        
    // How to save that origin??
} 


[Natsheh]

Random(0) will generate a random number....

Check if the iNpcTotal is above 0