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));
}
public Pair DirectionToWaypoint(WaypointGrid grid, int startX, int startY, bool flee = false)
{
int x = startX;
int y = startY;
Pair bestDirection = new Pair(0, 0);
int bestDistance = grid[x, y];//it's possible best bet is to stay
Pair direction = new Pair(0, -1);
int d = grid[x + direction.x, y + direction.y];
if (flee)
{
bestDistance = 0;
if (d > bestDistance && d < 1000)
{
bestDistance = d;
bestDirection = direction;
}
direction = new Pair(0, 1);
d = grid[x + direction.x, y + direction.y];
if (d > bestDistance && d < 1000)
{
bestDistance = d;
bestDirection = direction;
}
direction = new Pair(-1, 0);
d = grid[x + direction.x, y + direction.y];
if (d > bestDistance && d < 1000)
{
bestDistance = d;
bestDirection = direction;
}
direction = new Pair(1, 0);
d = grid[x + direction.x, y + direction.y];
if (d > bestDistance && d < 1000)
{
bestDistance = d;
bestDirection = direction;
}
return(bestDirection);
}
//first try up
if (d <= bestDistance)
{
bestDistance = d;
bestDirection = direction;
}
//down
direction = new Pair(0, 1);
d = grid[x + direction.x, y + direction.y];
if (d <= bestDistance)
{
bestDistance = d;
bestDirection = direction;
}
//left
direction = new Pair(-1, 0);
d = grid[x + direction.x, y + direction.y];
if (d <= bestDistance)
{
bestDistance = d;
bestDirection = direction;
}
//right
direction = new Pair(1, 0);
d = grid[x + direction.x, y + direction.y];
if (d <= bestDistance)
{
bestDistance = d;
bestDirection = direction;
}
if (bestDistance > 1000)
{
return(new Pair(0, 0));
}
return(bestDirection);
}
public static void init()
{
grid = new WaypointGrid();
}
public static void init()
{
grid = new WaypointGrid();
}
