// Update is called once per frame
void Update()
{
Vector2 mouseWorldPos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
Vector2 mouseWorldDelta = prevMouseWorldPos - mouseWorldPos;
prevMouseWorldPos = mouseWorldPos;
if (Input.GetMouseButtonDown(0))
{
// We sample with a little circle, we could also use a point here
// but then we would never be able to drag points because they never truly contact
selectedUnit = gridManager.GridInterface.FirstContact(new Circle(mouseWorldPos, 0.1f));
}
else if (Input.GetMouseButtonUp(0))
{
if (selectedUnit != null)
{
selectedUnit.EndDrag();
selectedUnit = null;
}
}
if (selectedUnit != null)
{
selectedUnit.Drag(mouseWorldPos);
}
}
public void DoContact(DemoUnit unit)
{
foreach (var c in prevContact)
{
c.UnmarkAsContacted();
}
prevContact.Clear();
foreach (var u in gridManager.GridInterface.ContactWhich(unit.GetShape(), (u) => u != unit))
{
prevContact.Add(u);
u.MarkAsContacted();
}
}
// Update is called once per frame
void Update()
{
Vector2 mouseWorldPos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
var nearest = gridManager.GridInterface.GetNearest(mouseWorldPos);
if (prevNearest != null)
{
prevNearest.UnmarkAsNearest();
}
if (nearest != null)
{
nearest.MarkAsNearest();
prevNearest = nearest;
}
}
public void Add(DemoUnit unit)
{
_grid.Add(unit.Key, unit, unit.GetShape());
}
