void CPathFind::FollowPath()
{
if (!IsFollowingPath()) return;
m_onPoint = false;
// move mob to next point
position_t* targetPoint = &m_points[m_currentPoint];
StepTo(targetPoint, m_pathFlags & PATHFLAG_RUN);
if (m_maxDistance && m_distanceMoved >= m_maxDistance)
{
// if I have a max distance, check to stop me
Clear();
m_onPoint = true;
}
else if (AtPoint(targetPoint))
{
m_currentPoint++;
if (m_currentPoint >= m_pathLength)
{
// i'm finished!
Clear();
}
m_onPoint = true;
}
}
bool CPathFind::PathTo(position_t point, uint8 pathFlags, bool clear)
{
// don't follow a new path if the current path has script flag and new path doesn't
if (IsFollowingPath() && (m_pathFlags & PATHFLAG_SCRIPT) && !(pathFlags & PATHFLAG_SCRIPT))
return false;
if (clear)
{
Clear();
}
m_pathFlags = pathFlags;
if (isNavMeshEnabled())
{
bool result = false;
if (m_pathFlags & PATHFLAG_WALLHACK)
{
result = FindClosestPath(&m_PTarget->loc.p, &point);
}
else
{
result = FindPath(&m_PTarget->loc.p, &point);
}
if (!result)
{
Clear();
}
return result;
}
else
{
m_pathLength = 1;
m_points[0].x = point.x;
m_points[0].y = point.y;
m_points[0].z = point.z;
}
return true;
}
void CPathFind::StopWithin(float within)
{
if (!IsFollowingPath()) return;
// TODO: cut up path
position_t* lastPoint = &m_points[m_pathLength - 1];
position_t* secondLastPoint = nullptr;
if (m_pathLength == 1)
{
secondLastPoint = &m_PTarget->loc.p;
}
else
{
secondLastPoint = &m_points[m_pathLength - 2];
}
float distanceTo = distance(*lastPoint, *secondLastPoint);
if (distanceTo > within)
{
// reduce last point to stop within the given number
float radians = atanf((secondLastPoint->z - lastPoint->z) / (secondLastPoint->x - lastPoint->x)) * (M_PI / 180.0f);
lastPoint->x -= cosf(radians) * within;
lastPoint->z -= sinf(radians) * within;
}
else
{
// i'm already there, stop moving
if (m_pathLength == 1)
{
Clear();
}
else
{
// remove last point, it'll make me too close
m_pathLength--;
}
}
}
