public Vector2 GetDirection()
{
if (board == null)
{
board = FindObjectOfType <Board>();
}
if (game == null)
{
game = FindObjectOfType <Game>();
}
if (player == null)
{
player = FindObjectOfType <Player>();
}
if (navigation == null)
{
navigation = FindObjectOfType <Navigation>();
}
if (moveRandomlyTime > 0)
{
return(GetRandomDirection());
}
if (grid == null)
{
grid = (Instantiate(navigation.waypointGridPrefab, transform) as GameObject).GetComponent <WaypointGrid>();
grid.waypointX = (int)Mathf.Round(player.transform.position.x);
grid.waypointY = (int)Mathf.Round(player.transform.position.y);
Debug.Log("Waypoint grid created");
}
if (Random.value > 0.995f)
{
ResetWaypoint();
}
Navigation.Pair p = navigation.DirectionToWaypoint(grid,
(int)Mathf.Round(enemy.transform.position.x),
(int)Mathf.Round(enemy.transform.position.y), flee);
if (p.x == 0 && p.y == 0)
{
ResetWaypoint();
p = navigation.DirectionToWaypoint(grid,
(int)Mathf.Round(enemy.transform.position.x),
(int)Mathf.Round(enemy.transform.position.y), flee);
}
if (WouldCollide(p) || (p.x == 0 && p.y == 0))
{
moveRandomlyTime = 5f;
return(GetRandomDirection());
}
return(new Vector2(p.x, p.y));
}
bool WouldCollide(Navigation.Pair p)
{
int x = (int)Mathf.Round(enemy.transform.position.x) + p.x;
int y = (int)Mathf.Round(enemy.transform.position.y) + p.y;
foreach (Enemy e in game.GetEnemies())
{
if (e != enemy)
{
int ex = (int)Mathf.Round(e.transform.position.x);
int ey = (int)Mathf.Round(e.transform.position.y);
if (ex == x && ey == y)
{
return(true);
}
}
}
return(false);
}
public Vector2 GetRandomDirection()
{
canGo.Clear();
for (int i = 0; i < directions.Length; i++)
{
if (enemy.CanGo(directions[i]))
{
canGo.Add(directions[i]);
}
}
if (canGo.Count == 0)
{
Debug.LogError("enemy is stuck!");
return(Vector2.zero);
}
Vector2 d = enemy.CurrentDirection();
Navigation.Pair p = new Navigation.Pair((int)Mathf.Round(d.x), (int)Mathf.Round(d.y));
if (d == Vector2.zero || !enemy.CanGo(d) || WouldCollide(p))
{
Vector2 dd = canGo[UnityEngine.Random.Range(0, canGo.Count)];
p = new Navigation.Pair((int)Mathf.Round(dd.x), (int)Mathf.Round(dd.y));
if (WouldCollide(p))
{
dd = canGo[UnityEngine.Random.Range(0, canGo.Count)];
p = new Navigation.Pair((int)Mathf.Round(dd.x), (int)Mathf.Round(dd.y));
}
if (WouldCollide(p))
{
dd = canGo[UnityEngine.Random.Range(0, canGo.Count)];
p = new Navigation.Pair((int)Mathf.Round(dd.x), (int)Mathf.Round(dd.y));
}
if (!WouldCollide(p))
{
return(dd);
}
}
Vector2 d1 = new Vector2(d.y, d.x);
Vector2 d2 = new Vector2(-d.y, -d.x);
if ((enemy.CanGo(d1) || enemy.CanGo(d2)) && Random.value > .95f)
{
Vector2 dd = canGo[UnityEngine.Random.Range(0, canGo.Count)];
p = new Navigation.Pair((int)Mathf.Round(dd.x), (int)Mathf.Round(dd.y));
if (WouldCollide(p))
{
dd = canGo[UnityEngine.Random.Range(0, canGo.Count)];
p = new Navigation.Pair((int)Mathf.Round(dd.x), (int)Mathf.Round(dd.y));
}
if (WouldCollide(p))
{
dd = canGo[UnityEngine.Random.Range(0, canGo.Count)];
p = new Navigation.Pair((int)Mathf.Round(dd.x), (int)Mathf.Round(dd.y));
}
if (!WouldCollide(p))
{
return(dd);
}
}
p = new Navigation.Pair((int)Mathf.Round(d.x), (int)Mathf.Round(d.y));
if (enemy.CanGo(d) && !WouldCollide(p))
{
return(d);
}
return(Vector2.zero);
}
