public bool CheckRoadsAroundExist(Vector2Int currTile)
{
RoadManager roadManager = MapManager.GetInstance().GetRoadManager();
if (roadManager == null)
{
return(false);
}
return(roadManager.CheckMapAvailability(currTile + new Vector2Int(0, 1)) ||
roadManager.CheckMapAvailability(currTile + new Vector2Int(0, -1)) ||
roadManager.CheckMapAvailability(currTile + new Vector2Int(1, 0)) ||
roadManager.CheckMapAvailability(currTile + new Vector2Int(-1, 0)));
}
public bool CheckRoadPathExists()
{
RoadManager roadManager = MapManager.GetInstance().GetRoadManager();
if (roadManager != null)
{
//check if curr or next road still exist, or if theres any roads around
if (!CheckRoadsAroundExist(m_CurrentTile) || !roadManager.CheckMapAvailability(m_CurrentTile) || !roadManager.CheckMapAvailability(m_NextTile))
{
return(false); //road doesnt exist
}
}
return(true);
}
public void Init(Vector2Int currentTilePos, AnimatorOverrideController animator = null)
{
m_CurrentTile = currentTilePos;
//check if theres anything around, if no road start despawning, this is to prevent infinite loop
RoadManager roadManager = MapManager.GetInstance().GetRoadManager();
if (!CheckRoadsAroundExist(m_CurrentTile) || !roadManager.CheckMapAvailability(m_CurrentTile))
{
gameObject.SetActive(false);
return;
}
//get the speed and set the animation speed accordingly
m_Speed = Random.Range(m_MinMaxSpeed.x, m_MinMaxSpeed.y);
m_NPCAnimator.speed = (m_Speed / m_MinMaxSpeed.y) * (m_MinMaxAnimationSpeed.y - m_MinMaxAnimationSpeed.x) + m_MinMaxAnimationSpeed.x;
//set the new animation type for the NPC
m_NPCAnimator.runtimeAnimatorController = animator;
//register the transform position based on current tile pos
if (MapManager.GetInstance() != null)
{
transform.position = MapManager.GetInstance().GetCellCentrePosToWorld(currentTilePos);
}
else
{
gameObject.SetActive(false);
return;
}
m_Dir = Vector2Int.zero;
m_VistedRoads.Clear();
m_RoadsQueue.Clear();
m_GoingIntoBuilding = false;
if (m_SpriteRenderer != null)
{
m_SpriteRenderer.color = Color.white;
}
DFSNextRoad(m_CurrentTile); //get the next tile to go to
}
void DFSNextRoad(Vector2Int currTile) //get the next block to go
{
RoadManager roadManager = MapManager.GetInstance().GetRoadManager();
if (roadManager == null)
{
return;
}
List <Vector2Int> neighbourRoads = new List <Vector2Int>();
//check up first, if never visited and theres a tile there add it
Vector2Int newGridoffsetPos = currTile + new Vector2Int(0, 1);
if (roadManager.CheckMapAvailability(newGridoffsetPos) && !m_VistedRoads.ContainsKey(newGridoffsetPos))
{
neighbourRoads.Add(newGridoffsetPos);
}
//check down
newGridoffsetPos = currTile + new Vector2Int(0, -1);
if (roadManager.CheckMapAvailability(newGridoffsetPos) && !m_VistedRoads.ContainsKey(newGridoffsetPos))
{
neighbourRoads.Add(newGridoffsetPos);
}
//check right
newGridoffsetPos = currTile + new Vector2Int(1, 0);
if (roadManager.CheckMapAvailability(newGridoffsetPos) && !m_VistedRoads.ContainsKey(newGridoffsetPos))
{
neighbourRoads.Add(newGridoffsetPos);
}
//check left
newGridoffsetPos = currTile + new Vector2Int(-1, 0);
if (roadManager.CheckMapAvailability(newGridoffsetPos) && !m_VistedRoads.ContainsKey(newGridoffsetPos))
{
neighbourRoads.Add(newGridoffsetPos);
}
if (neighbourRoads.Count == 0) //if theres nothing
{
//look into the queue to see if theres any other previous roads
//if queue is empty, reset the position to NPC current tile and reset the visited list
if (m_RoadsQueue.Count == 0)
{
m_VistedRoads.Clear();
DFSNextRoad(m_CurrentTile);
}
else
{
int lastAddedIndex = m_RoadsQueue.Count - 1;
Vector2Int prev = m_RoadsQueue[lastAddedIndex];
m_RoadsQueue.RemoveAt(lastAddedIndex); //remove the last element added
InitNextTile(prev);
}
}
else //go to next neighbouring tile
{
m_RoadsQueue.Add(m_CurrentTile);
int randomNeighbourIndex = Random.Range(0, neighbourRoads.Count);
InitNextTile(neighbourRoads[randomNeighbourIndex]);
}
}