[Point]

Hello!
I'm looking for a way to make the npc jump when there is an obstacle, as shown in the image.
I don't know how can i detect that in an effective way..

If someone can help me with ideas, thanks.

[Napoleon_be]

The way i would do it is, detect if player is pressing any movement button (forward, backward, sideways). Check if movement's current speed is 0, if it is, jump.

[Xalus]

I would suggest something like this:

PHP Code:

#include <amxmodx>
#include <engine>
#include <fakemeta>
#include <xs>

#define bot_classname "bot"

new Float:g_client_jumpdelay[33]

public plugin_init()
{
    // Register: Touch
    register_touch("worldspawn", bot_classname, "touch_wall")
    register_touch("func_brush", bot_classname, "touch_wall")
    register_touch("func_breakable", bot_classname, "touch_wall")
}

public touch_wall(entity, client)
{
    if(is_user_alive(client))
    {
        if(g_client_jumpdelay[client] < get_gametime())
        {
            g_client_jumpdelay[client] = (get_gametime() + 1.0)

            new Float:client_origin[3], Float:client_angle[3]
            pev(client, pev_origin, client_origin)
            client_origin[2] -= 36.0 // Checking origin from the feet (not sure value is correct)
            pev(client, pev_v_angle, client_angle)

            //client_angle[0] = -10.0 // Not sure why exactly I used this in 'Walk Through Walls'

            // Get the origin in front of the player, and see if something is standing between the 2 points
            new Float:futur_origin[3]
            origin_infront(client_angle, client_origin, 17.0, futur_origin)

            new trace_handle = create_tr2()
            engfunc(EngFunc_TraceLine, client_origin, futur_origin, DONT_IGNORE_MONSTERS, client, trace_handle)
            get_tr2(trace_handle, TR_vecEndPos, futur_origin)

            if(get_distance_f(client_origin, futur_origin) < 17.0)
            {
                // Going to force a jump
                client_print(0, print_chat, "Bot %i - Is forced to jump", client)

                engfunc(EngFunc_MakeVectors, client_angle)
                new Float:forward_vector[3]
                get_global_vector(GL_v_forward, forward_vector)

                client_angle[0] = forward_vector[0] * 200.0
                client_angle[1] = forward_vector[1] * 200.0
                client_angle[2] = 220.0

                set_pev(client, pev_velocity, client_angle)
            }
        }
    }
}

origin_infront(Float:vAngles[3], Float:vecOrigin[3], Float:flDistance, Float:vecOutput[3]) // By Exolent
{
    static Float:vecAngles[3]
    xs_vec_copy(vAngles, vecAngles)

    engfunc(EngFunc_MakeVectors, vecAngles)
    global_get(glb_v_forward, vecAngles)

    xs_vec_mul_scalar(vecAngles, flDistance, vecAngles)

    xs_vec_add(vecOrigin, vecAngles, vecOutput)
} 


[Glaster]

Originally Posted by Xalus I would suggest something like this

This code works not always: with some obstruction types like crates or not high walls it works fine, but NPCs have problems with stairs: they have not problems with first few but last stair is the biggest problem for them. Besides NPCs with this jumping function have problems with bridging the joints between some brushes. (I'm trying to fix this problem now and after/if it'll be done I'll send code here)

[AnimalMonster]

You can try by using TraceLine to detect if an entity is 'bigger' than a stair is too close to the npc, get it's origin and decrease y.

What i mean by "Detect if an entity is 'bigger' than a stair" is that you decrease that y with idk (you have to figure out a good value to decrese the y since it's about origin and player's size/model's size) and if trace line hits the object means that it is 'bigger' than a stair so you will make the npc jump if that's the case.

[JocAnis]

Originally Posted by Glaster This code works not always: with some obstruction types like crates or not high walls it works fine, but NPCs have problems with stairs: they have not problems with first few but last stair is the biggest problem for them. Besides NPCs with this jumping function have problems with bridging the joints between some brushes. (I'm trying to fix this problem now and after/if it'll be done I'll send code here)

i guess what is the problem here but can you send an video or photo example of this issue, so we will be sure and fix will be posted earlier ?

[Natsheh]

actually avoiding obstacles should be in npc entity think and not in the touch forward


Here's a trick how to make the npc climb up the stairs.

PHP Code:

    // engfunc(EngFunc_WalkMove    /* Target, Yaw Angle, fDistance Trace, MOVETYPE */
    if(!engfunc(EngFunc_WalkMove, id, YawAngle, 1.0, WALKMOVE_NORMAL)) // NPC Can't make 1 unit forward? 


[Glaster]

Originally Posted by JocAnis i guess what is the problem here but can you send an video or photo example of this issue, so we will be sure and fix will be posted earlier ?

Ok, it's here

1)
2)

[Natsheh]

I've a better stock are you interested?

Or you rather fix your code ? But you need to post what you've actually done.

[Glaster]

Originally Posted by Natsheh I've a better stock are you interested?

Yes I am! I'm very interested!