/// <summary>
/// 计算适口偏移值
/// </summary>
/// <returns>The offset position.</returns>
/// <param name="handPosition">Hand position.</param>
/// <param name="grabObject">Grab object.</param>
public static Vector3 GetOffsetPosition(Vector3 handPosition, GameObject grabObject)
{
var offset = Vector3.zero;
Vector3 screenDevice = MUtility.MainWorldToScreenPoint(grabObject.transform.position);
Vector3 vPos = MUtility.MainScreenToWorldPoint(new Vector3(handPosition.x, handPosition.y, screenDevice.z));
offset = vPos - grabObject.transform.position;
return(offset);
}
public static void SetObjectGrab(GameObject target, int handIndex = 0)
{
var operate = GetOperateHand(handIndex);
if (operate == null)
{
return;
}
Vector3 tempPos = MUtility.MainWorldToScreenPoint(target.transform.position - new Vector3(0, 0, MUtility.MainCamera.transform.position.z));
tempPos = MUtility.MainScreenToWorldPoint(tempPos);
operate.SetObjectGrab(target, tempPos.z);
}
/// <summary>
/// 返回是否在屏幕内
/// </summary>
/// <param name="thingAttach"></param>
/// <returns></returns>
public static bool AttachThingPosInCamera(Transform thingAttach, Vector2 xlimits, Vector2 ylimits)
{
Transform camTransform = MUtility.MainCamera.transform;
Vector3 dir = (thingAttach.position - camTransform.position).normalized;
float dot = Vector3.Dot(camTransform.forward, dir); //判断物体是否在相机前面
Vector2 screenPos = MUtility.MainWorldToScreenPoint(thingAttach.position);
if (screenPos.x < xlimits.y &&
screenPos.x > xlimits.x &&
screenPos.y < ylimits.y &&
screenPos.y > ylimits.x &&
dot > 0)
{
return(true);
}
else
{
return(false);
}
}