void RecalculateBoundingRect()
{
Rect mapsize = mapSize;
// Get some world space projections at this zoom level
// Temporarily move camera to final look position
Vector3 prevCameraPos = transform.position;
transform.position = CameraPosition;
transform.LookAt(LookPosition);
// Project screen corners and center
var bottomLeftScreen = new Vector3(0, 0);
var topLeftScreen = new Vector3(0, Screen.height);
var centerScreen = new Vector3(Screen.width * 0.5f, Screen.height * 0.5f);
Vector3 bottomLeftWorld = Vector3.zero;
Vector3 topLeftWorld = Vector3.zero;
Vector3 centerWorld = Vector3.zero;
float dist;
Ray ray = CachedCamera.ScreenPointToRay(bottomLeftScreen);
if (m_FloorPlane.Raycast(ray, out dist))
{
bottomLeftWorld = ray.GetPoint(dist);
}
ray = CachedCamera.ScreenPointToRay(topLeftScreen);
if (m_FloorPlane.Raycast(ray, out dist))
{
topLeftWorld = ray.GetPoint(dist);
}
ray = CachedCamera.ScreenPointToRay(centerScreen);
if (m_FloorPlane.Raycast(ray, out dist))
{
centerWorld = ray.GetPoint(dist);
}
Vector3 toTopLeft = topLeftWorld - centerWorld;
Vector3 toBottomLeft = bottomLeftWorld - centerWorld;
LookBounds = new Rect(
mapsize.xMin - toBottomLeft.x,
mapsize.yMin - toBottomLeft.z,
Mathf.Max(mapsize.width + (toBottomLeft.x * 2), 0),
Mathf.Max((mapsize.height - toTopLeft.z) + toBottomLeft.z, 0));
// Restore camera position
transform.position = prevCameraPos;
transform.LookAt(CurrentLookPosition);
}
public override Vector3 GetRaycastWorldPointOnTargetSurface(Vector2 screenPoint, Vector3?defaultValue)
{
Ray r = CachedCamera.ScreenPointToRay(screenPoint);
Vector3 result = defaultValue.HasValue ? defaultValue.Value : Vector3.zero;
float dist;
if (groundPlane.Raycast(r, out dist))
{
result = r.GetPoint(dist);
}
return(result);
}