private void boxSelect()
{
if (Input.GetMouseButtonDown(0) && !startedSelection)
{
startedSelection = true;
p1 = Input.mousePosition;
Ray ray = Camera.main.ScreenPointToRay(p1);
if (Physics.Raycast(ray, out hit, 500000f, layerMask))
{
// Debug.Log(hit.point);
initialPoint = hit.point;
// Debug.Log("Initial: "+ initialPoint.ToString());
}
}
if (Input.GetMouseButtonUp(0) && startedSelection)
{
// Alternatively only Unit layer objects
GameObject[] entities = GameObject.FindGameObjectsWithTag("Entity");
startedSelection = false;
if (!Input.GetKey(KeyCode.LeftShift))
{
selectionUtil.deselectAll();
}
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
if (Physics.Raycast(ray, out hit, 500000f, layerMask))
{
finalPoint = hit.point;
//Debug.Log("Final: "+ finalPoint.ToString());
}
Vector3 size = new Vector3(Mathf.Abs(finalPoint.x - initialPoint.x), 20, Mathf.Abs(finalPoint.z - initialPoint.z));
Vector3 midpoint = (finalPoint + initialPoint) / 2;
bounds.v3Center = midpoint;
bounds.v3Extents = size / 2;
Bounds b = new Bounds(midpoint, size / 2);
int mask = (1 << 6);
RaycastHit[] hits = Physics.BoxCastAll(midpoint, size / 2, Vector3.up, Quaternion.identity, 0, mask);
foreach (RaycastHit hit in hits)
{
selectionUtil.addSelected(hit.collider.gameObject);
}
// is it better or faster to keep an arraylist of Entities?
// int found =0;
// for(int i = 0; i < entities.Length; i++){
// Collider c = entities[i].GetComponent<Collider>();
// if(b.Intersects(c.bounds) || b.Contains(entities[i].transform.position)){
// found++;
// selectionUtil.addSelected(entities[i]);
// }
// }
//Debug.Log("Found: "+found.ToString());
}
if (initialPoint != null && finalPoint != null)
{
// Debug.DrawLine(midpoint,midpoint+ new Vector3(1,1,1),Color.red);
Debug.DrawLine(initialPoint, finalPoint, Color.green);
}
}