bool buildPath(GameObject target)
{
m_currentCellIndex = -1;
setTarget(null);
TDWorld world = TDWorld.getWorld();
TDGrid grid = world.m_grid;
TDGrid.Cell startCell = grid.getCell(world.from3dTo2d(gameObject.transform.position));
TDGrid.Cell endCell = grid.getCell(world.from3dTo2d(target.transform.position));
bool pathExists = false;
if (canFly())
{
pathExists = grid.buildAirPath(startCell, endCell, out m_path);
}
else
{
pathExists = grid.buildPath(startCell, endCell, out m_path);
}
m_currentCellIndex = 0;
setTarget(target);
return(pathExists);
}
// Returns false if target is not reachable
public bool walkByPath()
{
if (null == m_path)
{
return(false);
}
if ((m_currentCellIndex < 0) || (m_currentCellIndex >= m_path.Length))
{
return(false);
}
if (target() == null) // nowhere to go
{
cleanPath();
onTargetDestroyed();
return(true);
}
TDWorld world = TDWorld.getWorld();
int cellTo = (m_currentCellIndex == m_path.Length - 1) ? m_currentCellIndex : (m_currentCellIndex + 1);
Vector3 nextCellPos = world.from2dTo3d(world.m_grid.getCenter(m_path[cellTo]));
Vector3 dir = nextCellPos - transform.position;
dir.y = 0;
if (!canFly())
{
if (Mathf.Abs(dir.x) > Mathf.Abs(dir.z))
{
dir.z = 0;
}
else
{
dir.x = 0;
}
}
dir.Normalize();
float effSpeed = m_momentalSpeedFactor * getStartSpeed();
Vector3 move = effSpeed * Time.deltaTime * dir;
Vector3 nextPos = transform.position + move;
if (!canFly())
{
if (TDGrid.CellState.eBusy == TDWorld.getWorld().positionState(nextPos))
{
return(buildPath(target())); // To make things easy walk there next step
}
}
transform.Translate(move);
if ((world.from3dTo2d(transform.position) - world.from3dTo2d(nextCellPos)).magnitude < world.m_configuration.hitDistance)
{
++m_currentCellIndex;
}
if (m_currentCellIndex == m_path.Length)
{
onTargetReached(target());
cleanPath();
return(true);
}
return(true);
}