void Update()
{
if (!grid)
{
return;
}
if (doMove)
{
//move towards the desination
Vector3 newPosition = cachedTransform.position;
newPosition.x = Mathf.MoveTowards(cachedTransform.position.x, goal.x, roamingSpeed * Time.deltaTime);
newPosition.y = Mathf.MoveTowards(cachedTransform.position.y, goal.y, roamingSpeed * Time.deltaTime);
cachedTransform.position = newPosition;
//check if we reached the destination (use a certain tolerance so we don't miss the point becase of rounding errors)
if (Mathf.Abs(cachedTransform.position.x - goal.x) < 0.01f && Mathf.Abs(cachedTransform.position.y - goal.y) < 0.01f)
{
doMove = false;
}
//if we did stop moving
}
else
{
//make sure the time is always positive
if (roamingTime < 0.01f)
{
roamingTime = 0.01f;
}
//find the next destination
goal = FindNextFace();
//--- let's check if the goal is allowed, if not we will pick another direction during the next frame ---
if (ForbiddenTilesExample.CheckSquare(goal))
{
//calculate speed by dividing distance (one of the two distances will be 0, we need the other one) through time
roamingSpeed = Mathf.Max(Mathf.Abs(cachedTransform.position.x - goal.x), Mathf.Abs(cachedTransform.position.y - goal.y)) / roamingTime;
//resume movement with the new goal
doMove = true;
}
else
{
Debug.Log("hit the obstacle");
}
}
}
// Awake is called before Start()
void Awake()
{
//We will build the matrix based on the grid that is attached to this object.
//All entries are true by default, then each obstacle will mark its entry as false
ForbiddenTilesExample.Initialize(GetComponent <GFRectGrid>());
}
void OnGUI()
{
GUI.TextArea(new Rect(10, 10, 250, 200), ForbiddenTilesExample.MatrixToString());
}
// Start() is called after Awake(), this ensures that the matrix has alrady been built
void Start()
{
//Set the entry that corresonds to the obstacle's position as false
ForbiddenTilesExample.RegisterSquare(transform.position, false);
}
