Исходник Onetap v2 trace to exit

[popugapopugay]

Onetap v2 trace to exit.

bool AutoWall::TraceToExit(Vector start, Vector dir, Vector& end, CGameTrace* enterTrace, CGameTrace* exitTrace)
{
    int first_contents = 0;
    float distance = 0.0;

    Vector newOut;
    CTraceFilter filter;

    while (true)
    {
        distance += 4.0;
        end = (dir * distance) + start;

        int contents = g_pEngineTrace->GetPointContents(end, MASK_SHOT_HULL | CONTENTS_HITBOX);

        if (!first_contents)
            first_contents = contents;

        if (contents & MASK_SHOT_HULL && (!(contents & CONTENTS_HITBOX) || first_contents == contents))
            continue;

        newOut = (end - (dir * 4.0));

        g_pEngineTrace->TraceRay(Ray_t(end, newOut), MASK_SHOT, nullptr, exitTrace);

        if (exitTrace->startsolid && (exitTrace->surface.flags & SURF_HITBOX))
        {
            filter.SetPassEntity(exitTrace->entity);
            g_pEngineTrace->TraceRay(Ray_t(end, start), MASK_SHOT_HULL, &filter, exitTrace);

            if (exitTrace->DidHit() && !exitTrace->startsolid)
            {
                end = exitTrace->endpos;
                return true;
            }

            continue;
        }

        bool is_window = false;
        bool flag = false;

        int* name = (int*)enterTrace->surface.name;

        if (enterTrace->surface.name)
        {
            if (*name != 0x7370616D
                || name[1] != 0x5F73632F
                || name[2] != 0x6966666F
                || name[3] != 0x672F6563
                || name[4] != 0x7373616C
                || name[5] != 0x6272752F
                || name[6] != 0x675F6E61
                || name[7] != 0x7373616C)
                is_window = false;
            else
                is_window = true;

            if (name[1] == 0x5F65642F
                && name[2] == 0x656B616C
                && name[3] == 0x616C672F
                && name[4] == 0x672F7373
                && name[5] == 0x7373616C)
            {
                flag = true;

                if (is_window || flag)
                {
                    exitTrace = enterTrace;
                    exitTrace->endpos = end + dir;

                    return true;
                }
            }
        }

        if (exitTrace->DidHit())
        {
            if (IsBreakable((C_BaseEntity*)enterTrace->entity) && IsBreakable((C_BaseEntity*)exitTrace->entity))
                return true;

            if (exitTrace->plane.normal.Dot(dir) <= 1.0)
            {
                end = end - (dir * (exitTrace->fraction * 4.0));
                return true;
            }
            
            return true;
        }

        if (distance > 90.0)
            continue;
    }
    
    exitTrace = enterTrace;
    exitTrace->endpos = dir + end;

    return true;
}