C++ (Cpp) TryWalk Examples

Example #1

File: b_move.cpp Project: Xeomuz/Doom-Port-Source-Code

void FCajunMaster::NewChaseDir (AActor *actor, ticcmd_t *cmd)
{
    fixed_t     deltax;
    fixed_t     deltay;

    dirtype_t   d[3];

    int         tdir;
    dirtype_t   olddir;

    dirtype_t   turnaround;

    if (!actor->player->dest)
	{
#ifndef BOT_RELEASE_COMPILE
        Printf ("Bot tried move without destination\n");
#endif
		return;
	}

    olddir = (dirtype_t)actor->movedir;
    turnaround = opposite[olddir];

    deltax = actor->player->dest->x - actor->x;
    deltay = actor->player->dest->y - actor->y;

    if (deltax > 10*FRACUNIT)
        d[1] = DI_EAST;
    else if (deltax < -10*FRACUNIT)
        d[1] = DI_WEST;
    else
        d[1] = DI_NODIR;

    if (deltay < -10*FRACUNIT)
        d[2] = DI_SOUTH;
    else if (deltay > 10*FRACUNIT)
        d[2] = DI_NORTH;
    else
        d[2] = DI_NODIR;

    // try direct route
    if (d[1] != DI_NODIR && d[2] != DI_NODIR)
    {
        actor->movedir = diags[((deltay<0)<<1)+(deltax>0)];
        if (actor->movedir != turnaround && TryWalk(actor, cmd))
            return;
    }

    // try other directions
    if (pr_botnewchasedir() > 200
        || abs(deltay)>abs(deltax))
    {
        tdir=d[1];
        d[1]=d[2];
        d[2]=(dirtype_t)tdir;
    }

    if (d[1]==turnaround)
        d[1]=DI_NODIR;
    if (d[2]==turnaround)
        d[2]=DI_NODIR;

    if (d[1]!=DI_NODIR)
    {
        actor->movedir = d[1];
        if (TryWalk (actor, cmd))
            return;
    }

    if (d[2]!=DI_NODIR)
    {
        actor->movedir = d[2];

        if (TryWalk(actor, cmd))
            return;
    }

    // there is no direct path to the player,
    // so pick another direction.
    if (olddir!=DI_NODIR)
    {
        actor->movedir = olddir;

        if (TryWalk(actor, cmd))
            return;
    }

    // randomly determine direction of search
    if (pr_botnewchasedir()&1)
    {
        for ( tdir=DI_EAST;
              tdir<=DI_SOUTHEAST;
              tdir++ )
        {
            if (tdir!=turnaround)
            {
                actor->movedir = tdir;

                if (TryWalk(actor, cmd))
                    return;
            }
        }
    }
    else
    {
        for ( tdir=DI_SOUTHEAST;
              tdir != (DI_EAST-1);
              tdir-- )
        {
            if (tdir!=turnaround)
            {
                actor->movedir = tdir;

                if (TryWalk(actor, cmd))
                    return;
            }
        }
    }

    if (turnaround !=  DI_NODIR)
    {
        actor->movedir = turnaround;
        if (TryWalk(actor, cmd))
            return;
    }

    actor->movedir = DI_NODIR;  // can not move
}

Example #2

File: b_move.cpp Project: BenJamesbabala/ViZDoom

void DBot::NewChaseDir (ticcmd_t *cmd)
{
    dirtype_t   d[3];

    int         tdir;
    dirtype_t   olddir;

    dirtype_t   turnaround;

    if (!dest)
	{
#ifndef BOT_RELEASE_COMPILE
        Printf ("Bot tried move without destination\n");
#endif
		return;
	}

    olddir = (dirtype_t)player->mo->movedir;
    turnaround = opposite[olddir];

	fixedvec2 delta = player->mo->Vec2To(dest);

    if (delta.x > 10*FRACUNIT)
        d[1] = DI_EAST;
    else if (delta.x < -10*FRACUNIT)
        d[1] = DI_WEST;
    else
        d[1] = DI_NODIR;

    if (delta.y < -10*FRACUNIT)
        d[2] = DI_SOUTH;
    else if (delta.y > 10*FRACUNIT)
        d[2] = DI_NORTH;
    else
        d[2] = DI_NODIR;

    // try direct route
    if (d[1] != DI_NODIR && d[2] != DI_NODIR)
    {
        player->mo->movedir = diags[((delta.y<0)<<1)+(delta.x>0)];
        if (player->mo->movedir != turnaround && TryWalk(cmd))
            return;
    }

    // try other directions
    if (pr_botnewchasedir() > 200
        || abs(delta.y)>abs(delta.x))
    {
        tdir=d[1];
        d[1]=d[2];
        d[2]=(dirtype_t)tdir;
    }

    if (d[1]==turnaround)
        d[1]=DI_NODIR;
    if (d[2]==turnaround)
        d[2]=DI_NODIR;

    if (d[1]!=DI_NODIR)
    {
        player->mo->movedir = d[1];
        if (TryWalk (cmd))
            return;
    }

    if (d[2]!=DI_NODIR)
    {
        player->mo->movedir = d[2];

        if (TryWalk(cmd))
            return;
    }

    // there is no direct path to the player,
    // so pick another direction.
    if (olddir!=DI_NODIR)
    {
        player->mo->movedir = olddir;

        if (TryWalk(cmd))
            return;
    }

    // randomly determine direction of search
    if (pr_botnewchasedir()&1)
    {
        for ( tdir=DI_EAST;
              tdir<=DI_SOUTHEAST;
              tdir++ )
        {
            if (tdir!=turnaround)
            {
                player->mo->movedir = tdir;

                if (TryWalk(cmd))
                    return;
            }
        }
    }
    else
    {
        for ( tdir=DI_SOUTHEAST;
              tdir != (DI_EAST-1);
              tdir-- )
        {
            if (tdir!=turnaround)
            {
                player->mo->movedir = tdir;

                if (TryWalk(cmd))
                    return;
            }
        }
    }

    if (turnaround !=  DI_NODIR)
    {
        player->mo->movedir = turnaround;
        if (TryWalk(cmd))
            return;
    }

    player->mo->movedir = DI_NODIR;  // can not move
}