void Idle()
{
if (idleTimer == 1.0f)
{
pathSize = 0;
//Assign random target location
while (pathSize < 3)
{
idleTarget = new Vector3(gameObject.transform.position.x + Random.Range(-150, 150), gameObject.transform.position.y + Random.Range(-150, 150), -10);
//Keep looking for random target until it is a viable position
while (pathGrid.GetNodeEmpty(idleTarget) == false)
{
idleTarget = new Vector3(gameObject.transform.position.x + Random.Range(-150, 150), gameObject.transform.position.y + Random.Range(-150, 150), -10);
}
//Find a path to the target location
pathPosition = 0;
pathFinder.FindPath(pathGrid, gameObject.transform.position, idleTarget);
pathCompleted = false;
pathSize = pathGrid.path.Count;
}
idleTimer -= Time.deltaTime;
}
else
{
//if the current path has came to an end
if (pathCompleted)
{
//Reset the pathing variables
pathSize = 0;
idleTimer -= Time.deltaTime;
//After idling is over, reset the timer to trigger a new path to be found
if (idleTimer <= 0.0f)
{
idleTimer = 1.0f;
return;
}
}
//Once the path is completed, set it to complete
if (pathPosition == pathSize - 2)
{
pathCompleted = true;
return;
}
//iterate the path position once it has reached the next node in the path
if (gameObject.transform.position == pathGrid.path[pathPosition].worldPos && pathPosition < pathSize - 1)
{
pathPosition++;
}
//While the path hasn't been completed
if (pathPosition < pathSize - 2 && pathSize != 0)
{
//rotate towards this direction (determined by difficulty setting)
//find the vector pointing from our position to the target
Vector3 direction = (pathGrid.path[pathPosition].worldPos - transform.position);
//rotate towards the way the agent is facing
float rotation = Mathf.Atan2(direction.x, direction.y) * Mathf.Rad2Deg;
gameObject.transform.rotation = Quaternion.Slerp(gameObject.transform.rotation, Quaternion.Euler(0, 0, -rotation), 0.1f);
//Prevent getting stuck on walls when idling
//move
gameObject.transform.position = Vector3.MoveTowards(gameObject.transform.position, pathGrid.path[pathPosition].worldPos, 0.3f);
//Reset path if stuck (position hasn't changed
if (gameObject.transform.position == previousPosition)
{
idleTimer = 1.0f;
return;
}
//record position for the next frame
previousPosition = gameObject.transform.position;
}
}
}