[glittershii]

I'm looking for a way to get the absolute coordinates (x,y,z) of a hitscan shot. I've read about using bullet_impact but that's not a valid event in the game I'm scripting for (No More Room in Hell).

TakeDamage only works for player hits. I need other shots as well (in fact, player hits won't even reg due to a hitbox bug).
A direct ray trace using the shooter's view coordinates doesn't account for spread, making it inaccurate.

Is there some other event I can use instead?

[glittershii]

My code. I need a trace ray that goes from the client's eye position to the place where the shot landed (pretty much recreating the trajectory of the bullet)

PHP Code:

#include <sourcemod>
#include <sdktools>
#include <sdkhooks>
#pragma newdecls required

public void OnPluginStart()
{
    HookEvent("weapon_fired", Event_WeaponFired);
}

public Action Event_WeaponFired(Event event, const char[] name, bool dontBroadcast)
{
    int client = GetClientOfUserId(GetEventInt(event, "player_id"));
    float startpoint[3]
    float endpoint[3];

    GetClientEyePosition(client, startpoint);
    
    //Need endpoint value, bullet coordinates

    TR_TraceRayFilter(startpoint, endpoint, MASK_SOLID, RayType_EndPoint, RayDontHitSelf, client);

    if(TR_DidHit() == true)
    {
        //do things
    }
}

public bool RayDontHitSelf(int entity,int contentsMask, any data)
{
    return (entity != data);
} 


Side question: How costly are trace rays?

[hmmmmm]

Rather than doing from start->end you can choose start point and angles by using RayType_Infinite, then get endpoint from there.
Example:

PHP Code:

#include <sourcemod>
#include <sdktools>
#include <sdkhooks>
#pragma newdecls required

public void OnPluginStart()
{
    HookEvent("weapon_fired", Event_WeaponFired);
}

public Action Event_WeaponFired(Event event, const char[] name, bool dontBroadcast)
{
    int client = GetClientOfUserId(GetEventInt(event, "player_id"));
    float startpoint[3]
    float endpoint[3];

    GetClientEyePosition(client, startpoint);
    GetClientEyeAngles(client, angle);

    TR_TraceRayFilter(startpoint, angle, MASK_SOLID, RayType_Infinite, RayDontHitSelf, client);

    if(TR_DidHit())
    {
        TR_GetEndPosition(endpoint);
        // Do whatever you need
    }
}

public bool RayDontHitSelf(int entity,int contentsMask, any data)
{
    return (entity != data);
} 


As for cost of tracerays I wouldn't worry about it until it actually appears to cause issues. I've seen lots of plugins that create traces every frame for every player with seemingly no impact to performance.

[glittershii]

Thanks for the response, but using GetClientEyeAngles will just shoot the ray in a straight line. It won't account for bullet spread. That's why I need an endpoint and I need it to be the coordinates of where the bullet hits.

[Kinsi]

Look up the bullet_impact event

[glittershii]

Originally Posted by Kinsi Look up the bullet_impact event

As stated in the OP, game doesn't have it

[Kinsi]

Ohh didnt see that. You'd prolly need to reverse engineer the server/engine dll and use DHooks to write a manual hook. No event suggests that you're able to calculate where the bullet actually hit.

[glittershii]

That sounds like something that's way beyond my knowledge. I'm willing to learn but I have no idea where to start. Any documentation you recommend?

[HymnsForDisco]

There are SDK hooks for SDKHook_TraceAttack and SDKHook_TraceAttackPost
Maybe one of these will help you

[Starbish]

Maybe just use OnTakeDamage() will resolve this problem?