private void ClickOrDrag()
{
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast(ray, out hit, Mathf.Infinity) && /** !EventSystem.current.IsPointerOverGameObject() && **/ !UnitManager.instance.buildMode)
{
currentMousePoint = hit.point;
if (Input.GetMouseButtonDown(0) && !Input.GetKey(KeyCode.LeftShift))
{
mouseDownPoint = hit.point;
mouseDragStartPosition = Input.mousePosition;
//click to select unit, or click the ground to deselect all
if (hit.collider.gameObject.tag == "Unit")
{
selectedUnit = hit.collider.gameObject;
selectFSM = SelectFSM.clickSelect;
}
else if (hit.collider.gameObject.tag == "Ground")
{
selectedTable.deselectAll();
}
//selectFSM = SelectFSM.clickDeselect;
}
else if (Input.GetMouseButtonDown(0) && Input.GetKey(KeyCode.LeftShift))
{
//holding shift, click to select units or click selected units to deselect
if (hit.collider.gameObject.tag == "Unit" && !selectedTable.getDictionary().ContainsKey(hit.collider.gameObject.GetInstanceID()))
{
//AddToCurrentlySelectedUnits(hit.collider.gameObject);
selectedTable.addSelected(hit.collider.gameObject);
}
else if (hit.collider.gameObject.tag == "Unit" && selectedTable.getDictionary().ContainsKey(hit.collider.gameObject.GetInstanceID()))
{
//RemoveFromCurrentlySelectedUnits(hit.collider.gameObject);
selectedTable.deselect(hit.collider.gameObject.GetInstanceID());
}
}
else if (Input.GetMouseButton(0) && !Input.GetKey(KeyCode.LeftShift))
{
if (UserDraggingByPosition(mouseDragStartPosition, Input.mousePosition))
{
mouseDragging = true;
DrawDragBox();
SelectUnitsInDrag();
}
}
else if (Input.GetMouseButtonUp(0) && !Input.GetKey(KeyCode.LeftShift))
{
mouseDragging = false;
}
}
}
void HandlesMouseInput()
{
//Right Mouse Button Click
if (Input.GetMouseButtonDown(1))
{
startPosition = Input.mousePosition;
}
//Right Mouse Button Held
if (Input.GetMouseButton(1))
{
if ((startPosition - Input.mousePosition).magnitude > dragArea)
{
dragSelect = true;
}
}
//Right Mouse Button Released
if (Input.GetMouseButtonUp(1))
{
//Selects a single unit
if (dragSelect == false)
{
Ray ray = Camera.main.ScreenPointToRay(startPosition);
//I set it to an extra large number just incase
if (Physics.Raycast(ray, out hit, 50000.0f))
{
//Left shift will allow the selection of multiple units
//Inclusive Select
if (Input.GetKey(KeyCode.LeftShift))
{
selectedTable.addSelected(hit.transform.gameObject);
}
//Exclusive Selected
else
{
selectedTable.deselectAll();
selectedTable.addSelected(hit.transform.gameObject);
}
}
//If we didn't hit something
else
{
if (Input.GetKey(KeyCode.LeftShift))
{
}
else
{
selectedTable.deselectAll();
}
}
}
//If hit by the selection box
else
{
verts = new Vector3[4];
vecs = new Vector3[4];
int i = 0;
currentPosition = Input.mousePosition;
corners = getBoundingBox(startPosition, currentPosition);
//After getting the position of the boundingBox it will cast a ray from those positions
foreach (Vector2 corner in corners)
{
Ray ray = Camera.main.ScreenPointToRay(corner);
//Layermask is set to ground (1 << 8, layer 8 = ground)
//Should be set by Unity default
if (Physics.Raycast(ray, out hit, 50000.0f, (1 << 8)))
{
verts[i] = new Vector3(hit.point.x, hit.point.y, hit.point.z);
vecs[i] = ray.origin - hit.point;
//Draws a line in the inspector
Debug.DrawLine(Camera.main.ScreenToWorldPoint(corner), hit.point, Color.red, 1.0f);
}
i++;
}
//Genrates the box collider mesh
selectionMesh = generateSelectionMesh(verts, vecs);
//Adds a mesh collider to the componment
selectionBox = gameObject.AddComponent <MeshCollider>();
selectionBox.sharedMesh = selectionMesh;
selectionBox.convex = true;
selectionBox.isTrigger = true;
if (!Input.GetKey(KeyCode.LeftShift))
{
selectedTable.deselectAll();
}
Destroy(selectionBox, 0.02f);
}
dragSelect = false;
}
}