public virtual ProposedPosition GetPosition(Vector3 mousePosition, bool snapToGrid, float gridSize)
{
var cameraPosition = cam.transform.position;
var mouseWorldPosition = cam.ScreenToWorldPoint(new Vector3(mousePosition.x, mousePosition.y, cam.nearClipPlane));
var viewVector = mouseWorldPosition - cameraPosition;
cameraPosition.y += rayYOffset;
var gridPositon = Camera.Grid.instance.transform.position;
float gridY = gridPositon.y;
double t = (gridY - cameraPosition.y) / viewVector.y;
Vector3 hitPoint = gridPositon;
double x = (double)cameraPosition.x + (double)viewVector.x * t;
double y = (double)cameraPosition.z + (double)viewVector.z * t;
hitPoint.x = (float)x;
hitPoint.z = (float)y;
var position = new ProposedPosition(brick.transform);
position.position = hitPoint + positionOffset;
position.position.y = -lowestYoffset;
position.position = CorrectPosition(position.position, snapToGrid, gridSize);
position.isValid = true;
return(position);
}
public override ProposedPosition GetPosition(Vector3 mousePosition, bool snapToGrid, float gridSize)
{
var ray = cam.ScreenPointToRay(mousePosition);
ray.origin -= dragPointOffset;
var mouseRayDirection = Quaternion.LookRotation(ray.direction);
//calculate bounds dimensions
Bounds bounds = brick.GetBounds();
float minBrickDimension = Mathf.Min(bounds.extents.x, bounds.extents.y, bounds.extents.z);
bounds.extents = new Vector3(minBrickDimension, minBrickDimension, 1000f);
bounds.center = brick.transform.position + dragPointOffset;
//move bouds to position in fornt of the camera
var distanceBricCamera = bounds.extents.z - (cam.transform.position - bounds.center).magnitude;
bounds.center += ray.direction * distanceBricCamera;
//check box collision with other bricks
var colliders = Physics.OverlapBox(bounds.center, bounds.extents, mouseRayDirection, 1);
// DrawBounds(bounds, mouseRayDirection, Color.red);
//select nearest point
Vector3 closestPoint = Vector3.zero;
float shortestDistance = 10000f;
bool found = false;
foreach (var collider in colliders)
{
if (collider.tag != "background" && !ContainCollider(brick, collider))
{
var point = collider.bounds.ClosestPoint(ray.origin);
var distance = (ray.origin - point).magnitude;
if (distance < shortestDistance)
{
closestPoint = point;
shortestDistance = distance;
found = true;
}
}
}
if (found)
{
//calculate new brick position
float distance = shortestDistance;
Vector3 point = ray.origin + ray.direction * distance;
ProposedPosition position = new ProposedPosition(brick.transform);
position.position = CorrectPosition(point, snapToGrid, gridSize);
position.isValid = false;
if (position.position.y + lowestYoffset >= 0)
{
return(position);
}
}
//fall back positioning to grid positioner
return(base.GetPosition(mousePosition, snapToGrid, gridSize));
}