public void Update()
{
if (Input.GetMouseButtonDown(0))
{
Vector3 mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
Vector2 mousePos2D = new Vector2(mousePos.x, mousePos.y);
RaycastHit2D hit = Physics2D.Raycast(mousePos2D, Vector2.zero);
if (hit.collider != null && hit.collider.tag == "Point")
{
if (EndPoint != null)
{
StartPoint = EndPoint;
}
EndPoint = hit.collider.gameObject;
}
brojProlaza = 1;
Terrain_Points.ResetColorsInScene();
}
if (Input.GetMouseButtonDown(1))
{
Vector3 mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
Vector2 mousePos2D = new Vector2(mousePos.x, mousePos.y);
RaycastHit2D hit = Physics2D.Raycast(mousePos2D, Vector2.zero);
if (hit.collider != null && hit.collider.tag == "Point")
{
Destroy(hit.collider.gameObject);
}
brojProlaza = 1;
Terrain_Points.ResetColorsInScene();
}
if (Input.GetKeyDown(KeyCode.Space))
{
if (EndPoint != null && StartPoint != null)
{
Point newStartPoint = NameToPoint(StartPoint.name);
Point newEndPoint = NameToPoint(EndPoint.name);
pathfinding.brojProlaza = brojProlaza;
List <Point> newPath = pathfinding.FindPath(newStartPoint, newEndPoint);
if (newPath != null)
{
brojProlaza = 1;
Terrain_Points.ResetColorsInScene();
foreach (Point pathPoint in newPath)
{
Terrain_Points.SetColor(pathPoint, 4);
}
Terrain_Points.SetColor(newPath[0], 1);
Terrain_Points.SetColor(newPath[newPath.Count - 1], 2);
}
else
{
brojProlaza++;
}
}
}
}
public List <Point> FindPath(Point StartPoint, Point EndPoint) //Vraća listu točaka po kojoj će objekt ići
{
openList.Clear();
closedList.Clear();
openList.Add(StartPoint);
StartPoint.g_cost = 0;
StartPoint.h_cost = CalculateFastestRoute(StartPoint, EndPoint);
StartPoint.g_cost = int.MaxValue;
//while (openList.Count > 0)
while (brojProlaza > 0)
{
Point curPoint = GetLowestFcostPoint();
//Debug.Log("prolaz: " + brojProlaza + ", end: " + EndPoint.toStr() + ", cur: " + curPoint.toStr());
if (curPoint.toStr() == EndPoint.toStr())
{
return(CalculatePath(curPoint)); //ovo je kraj, treba još izračunati path
}
openList.Remove(curPoint);
closedList.Add(curPoint);
Terrain_Points.SetColor(curPoint, 5);
foreach (Point nbPoint in AllNeighbourList(curPoint))
{
if (closedList.Contains(nbPoint))
{
continue;
}
Terrain_Points.SetColor(nbPoint, 3);
int pre_gcost = curPoint.g_cost + CalculateFastestRoute(curPoint, nbPoint);
if (pre_gcost < nbPoint.g_cost)
{
nbPoint.parent = curPoint;
nbPoint.g_cost = pre_gcost;
nbPoint.h_cost = CalculateFastestRoute(nbPoint, EndPoint);
nbPoint.SetF();
if (!openList.Contains(nbPoint))
{
openList.Add(nbPoint);
}
}
}
brojProlaza--;
}
//ako dode do ovdje program znači da je prošao sve pointove
//Debug.Log("Every point has been checked!");
return(null);
}
public static void ResetColorsInScene() //osim starting & ending pointa
{
Player playerScr = GameObject.Find("GameManager").GetComponent <Player>();
GameObject[] allPoints = GameObject.FindGameObjectsWithTag("Point");
foreach (GameObject onePoint in allPoints)
{
if (onePoint == playerScr.StartPoint)
{
Terrain_Points.SetColor(onePoint, 1);
}
else if (onePoint == playerScr.EndPoint)
{
Terrain_Points.SetColor(onePoint, 2);
}
else
{
Terrain_Points.SetColor(onePoint, 0);
}
}
}
