private void Update()
{
if (!_isActive)
{
return;
}
if (grid == null || grid.Value == null)
{
return;
}
if (uiTilemap == null)
{
return;
}
// todo(chris) remove nasty hack for "is paused"
if (Time.timeScale < float.Epsilon)
{
return;
}
var worldPoint = _camera.ScreenToWorldPoint(Input.mousePosition);
var node = new Grid.Grid.Node();
if (grid.Value.TryGetNodeAtWorldPosition(worldPoint, ref node))
{
if (_node?.Equals(node) != true)
{
_node = node;
OnNewNode(node);
}
}
}
private IEnumerator CoMove(Unit.Unit unit, Grid.Grid.Node destination, float speed, bool twoWayCollisions, Transform toMove)
{
Vector2 endPoint = destination.WorldPosition;
var startNode = unit.Occupant.CurrentNode;
if (startNode == null)
{
yield break;
}
var lastNode = startNode.Value;
var startPoint = (Vector2)toMove.position;
var start = Time.time;
var distance = (endPoint - startPoint).magnitude;
var duration = distance / speed;
var end = start + duration;
_collider2D = null;
onStartMove.Invoke();
while (Time.time < end && _collider2D == null)
{
var t = (Time.time - start) / duration;
var x = Tween.Lerp(startPoint.x, endPoint.x, t);
var y = Tween.Lerp(startPoint.y, endPoint.y, t);
toMove.position = new Vector3(x, y, toMove.position.z);
if (moveToLastNodeOnCollision)
{
var node = new Grid.Grid.Node();
if (!unit.Occupant.Grid.TryGetNodeAtWorldPosition(toMove.position, ref node))
{
toMove.position = lastNode.WorldPosition;
yield break;
}
if (!node.Equals(lastNode) && !node.Equals(destination))
{
if (Vector2.Distance(toMove.position, node.WorldPosition) < .4f)
{
lastNode = node;
}
}
}
yield return(null);
}
OnStopMove.Invoke();
if (_collider2D == null && _myCollider != null)
{
var cached = _myCollider.enabled;
_myCollider.enabled = false;
_collider2D = Physics2D.OverlapCircle(toMove.position, .3f, layers);
_myCollider.enabled = cached;
}
if (_collider2D == null)
{
toMove.position = new Vector3(endPoint.x, endPoint.y, toMove.position.z);
}
else
{
yield return(StartCoroutine(OnCollision(unit, startNode.Value, lastNode, speed, twoWayCollisions, toMove)));
}
}