[Shadows Adi]

Hello,
I am trying to keep a solid entity at a certain distance from player's view.
For example: At 150 units in front of player and tracking the distance from player to entity.

So far I am setting the entity velocity to keep it at a distance from player's view, but it works only if I move backwards, not forwards too.

entity_set_aim() function is called on every think of entity.

Code:

stock entity_set_aim(ent, player) 
{ 
    static Float:origin[3], Float:ent_origin[3], Float:angles[3] 
    pev(player, pev_origin, origin)
    pev(ent, pev_origin, ent_origin) 
     
    xs_vec_sub(origin, ent_origin, origin) 
    xs_vec_normalize(origin, origin) 
    vector_to_angle(origin, angles) 
     
    angles[0] = 0.0 
    if(entity_range(ent, player) > ENT_DISTANCE)
    {
        set_velocity(ent, angles)
        angles[1] -= 90.0
        set_pev(ent, pev_angles, angles)

    }
} 

stock set_velocity(ent, Float:angles[3])
{
    static Float: Direction[3] 
    angle_vector(angles, ANGLEVECTOR_FORWARD, Direction) 
    xs_vec_mul_scalar(Direction, float(Speed), Direction) // float(-Speed)
    set_pev(ent, pev_velocity, Direction)
}

Edit: Just achieved to move entity forwards and backwards by making the Speed positive and negative. But the entity is not staying in front of player.

[Natsheh]

https://forums.alliedmods.net/showpo...39&postcount=3

Can you attach some screenshots so we can imagine whats happening?

[Shadows Adi]

Here is a short video: https://vimeo.com/591185759

I wanna update the entity's origin within x units from player's front angle in aiming direction.

[Natsheh]

Originally Posted by Shadows Adi Here is a short video: https://vimeo.com/591185759 I wanna update the entity's origin within x units from player's front angle in aiming direction.

You can use this function shift_entity_position from the link I've posted in the previous post..

[Shadows Adi]

It doesn't work, it keeps spinning the entity in a sphere.

Edit: forgot to get view offset. It does work now, thank you!

[Shadows Adi]

When using this function, the entity doesn't make solid or touchable while it is in a wall.

[Natsheh]

Originally Posted by Shadows Adi When using this function, the entity doesn't make solid or touchable while it is in a wall.

What do you mean whilst in the wall, explain?

Are you setting the entity maxs and mins?

[Shadows Adi]

Originally Posted by Natsheh Are you setting the entity maxs and mins?

Yes

Originally Posted by Natsheh What do you mean whilst in the wall, explain?

I want to allow players to place the entity in walls and keep it's solidity.

Edit: I created the entity using info_target instead of func_wall and now seems to work right.
But, it's origin gets upwards if it touch a wall it seems. Video: https://vimeo.com/591807069

P.S.: I am dropping the entity every frame using EngFunc_DropToFloor right after using shift_entity_position()

[Natsheh]

Show the code

[Shadows Adi]

PHP Code:

RegisterHam(Ham_Think, "info_target", "ent_ThinkPre")

public ent_ThinkPre(iEnt)
{
    if(!pev_valid(iEnt))
        return

    static className[32]
    pev(iEnt, pev_classname, className, charsmax(className))

    if(!equali(className, g_szClassName)) 
    {
        return
    }

    new id = pev(iEnt, pev_owner)

    if(is_user_alive(id))
    {
        new Float:fStartPos[3], Float:fvOFS[3], Float:fAngles[3]
        pev(id, pev_origin, fStartPos)
        pev(id, pev_view_ofs, fvOFS)
        pev(id, pev_angles, fAngles)
        fAngles[0] = 0.0
        //fStartPos[2] += fvOFS[2]
        set_pev(iEnt, pev_origin, fStartPos)
        set_pev(iEnt, pev_angles, fAngles)
        new button = get_user_button(id)
        if(button & IN_FORWARD)
        {
            entity_set_aim(iEnt, id, true);
        }
        else
        {
            entity_set_aim(iEnt, id);
        }
    } 

    shift_entity_position(iEnt, 100.0, 0.0, 30.0)
    engfunc(EngFunc_DropToFloor, iEnt)

    set_pev(iEnt, pev_nextthink, get_gametime() + 0.01)
}

stock entity_set_aim(ent, player, bool:bBackWards = false) 
{ 
    static Float:origin[3], Float:ent_origin[3], Float:angles[3] 
    pev(player, pev_origin, origin)
    pev(ent, pev_origin, ent_origin) 
     
    xs_vec_sub(origin, ent_origin, origin) 
    xs_vec_normalize(origin, origin) 
    vector_to_angle(origin, angles) 
     
    angles[0] = 0.0 
    if(entity_range(ent, player) > ENT_DISTANCE)
    {
        set_velocity(ent, angles, player, bBackWards)
        //angles[1] -= 90.0
        set_pev(ent, pev_angles, angles)
    }

}

stock set_velocity(ent, Float:angles[3], player, bool:bBackWards = false)
{
    new Float: Direction[3] 
    angle_vector(angles, ANGLEVECTOR_FORWARD, Direction) 
    xs_vec_mul_scalar(Direction, bBackWards ? float(-Speed) : float(Speed), Direction)
    set_pev(ent, pev_velocity, Direction)
}

stock shift_entity_position(ent, Float:forw, Float:right, Float:up)
{
    new Float:vOrigin[3], Float:vAngle[3], Float:vForward[3], Float:vRight[3], Float:vEnd[3];
    
    pev(ent, pev_origin, vOrigin);
    pev(ent, pev_angles, vAngle);
    
    angle_vector(vAngle,ANGLEVECTOR_FORWARD, vForward); //or use EngFunc_AngleVectors
    angle_vector(vAngle,ANGLEVECTOR_RIGHT, vRight);
    
    vEnd[0] = vOrigin[0] + (vForward[0] * forw) + (vRight[0] * right);
    vEnd[1] = vOrigin[1] + (vForward[1] * forw) + (vRight[1] * right);
    // Extract up value from vOrigin to make entitystay on ground when in walls but it seems that it didn't work too good
    vEnd[2] = vOrigin[2] - up;

    // debug only
    client_print(0, print_chat, "origin2: %f", vOrigin[2])

    // This don't help with anything, so I decided to comment it.
    /*static iTr2; iTr2 = create_tr2();
    engfunc(EngFunc_TraceLine, vOrigin, vEnd, DONT_IGNORE_MONSTERS, ent, iTr2);
    get_tr2(iTr2, TR_vecEndPos, vEnd);
    free_tr2(iTr2);*/

    set_pev(ent, pev_origin, vEnd);
}