public void StopPushing()
{
if (m_CurrentPushable)
{
m_CurrentPushable.EndPushing();
}
}
public void CheckForPushing()
{
bool pushableOnCorrectSide = false;
Pushable previousPushable = m_CurrentPushable;
m_CurrentPushable = null;
if (m_CurrentPushables.Count > 0 && CrossPlatformInputManager.GetAxis("Vertical") < 0.7f)
{
/* kk comment change
* bool movingRight = PlayerInput.Instance.Horizontal.Value > float.Epsilon;
* bool movingLeft = PlayerInput.Instance.Horizontal.Value < -float.Epsilon;
*/
//kk added change
bool movingRight = CrossPlatformInputManager.GetAxis("Horizontal") > float.Epsilon;
bool movingLeft = CrossPlatformInputManager.GetAxis("Horizontal") < -float.Epsilon;
for (int i = 0; i < m_CurrentPushables.Count; i++)
{
float pushablePosX = m_CurrentPushables[i].pushablePosition.position.x;
float playerPosX = m_Transform.position.x;
if (pushablePosX < playerPosX && movingLeft || pushablePosX > playerPosX && movingRight)
{
pushableOnCorrectSide = true;
m_CurrentPushable = m_CurrentPushables[i];
break;
}
}
if (pushableOnCorrectSide)
{
Vector2 moveToPosition = movingRight ? m_CurrentPushable.playerPushingRightPosition.position : m_CurrentPushable.playerPushingLeftPosition.position;
moveToPosition.y = m_CharacterController2D.Rigidbody2D.position.y;
m_CharacterController2D.Teleport(moveToPosition);
}
}
if (previousPushable != null && m_CurrentPushable != previousPushable)
{//we changed pushable (or don't have one anymore), stop the old one sound
previousPushable.EndPushing();
}
m_Animator.SetBool(m_HashPushingPara, pushableOnCorrectSide);
}
/*
*推动物体逻辑概要：
* 在状态机中所有状态类调用CheckForPushing()检测是否符合条件，如果是
* 设置m_CurrentPushable字段为当前推动的物体
* 判断可推动对象 相对角色的左右方向 及 键盘或者控制器的左右输入方向 是否要处理推动（如箱子在左，角色在右，此时输入为向右移动则不需要推动）
* 执行m_CharacterController2D.Teleport(moveToPosition);
* 注：CheckForPushing() 只判断角色是否符合推动状态条件，并设置Pushing flag，等待状态机的切换，及保持推动过程中角色和可推动对象的相对位置恒定
* 不做相关移动操作，而具体的移动逻辑为：
* Pushing状态中调用m_MonoBehaviour.GroundedHorizontalMovement(true, m_MonoBehaviour.pushingSpeedProportion); 设置m_MoveVector（缓慢）
* Pushing状态中调用MovePushable()，m_CurrentPushable.Move(m_MoveVector * Time.deltaTime); ***此处是以m_MoveVector为箱子移动速度
*/
/// <summary>
/// 判断是否处于推动状态
/// </summary>
public void CheckForPushing()
{
bool pushableOnCorrectSide = false;
Pushable previousPushable = m_CurrentPushable;
m_CurrentPushable = null;
if (m_CurrentPushables.Count > 0)
{
bool movingRight = PlayerInput.Instance.Horizontal.Value > float.Epsilon;
bool movingLeft = PlayerInput.Instance.Horizontal.Value < -float.Epsilon;
for (int i = 0; i < m_CurrentPushables.Count; i++)
{
float pushablePosX = m_CurrentPushables[i].pushablePosition.position.x;
float playerPosX = m_Transform.position.x;
if (pushablePosX < playerPosX && movingLeft || pushablePosX > playerPosX && movingRight)
{
pushableOnCorrectSide = true;
m_CurrentPushable = m_CurrentPushables[i];
break;
}
}
if (pushableOnCorrectSide)
{
Vector2 moveToPosition = movingRight ? m_CurrentPushable.playerPushingRightPosition.position : m_CurrentPushable.playerPushingLeftPosition.position;
moveToPosition.y = m_CharacterController2D.Rigidbody2D.position.y;
//m_CharacterController2D.transform.position == m_CharacterController2D.Rigidbody2D.position
//2018.11.28 Hotkang 注： 此处的逻辑是：保持推动时角色和推动物体的相对位置不变（由pushable组件下的left和right position确定）
//如果不调用该函数，会出现碰撞抖动：角色一直向前推动，但可推动对象已经不可向前移动（碰撞体接触），此时有可能推动对象会嵌入其他碰撞体
m_CharacterController2D.Teleport(moveToPosition);
}
}
if (previousPushable != null && m_CurrentPushable != previousPushable)
{//we changed pushable (or don't have one anymore), stop the old one sound
previousPushable.EndPushing();
}
m_Animator.SetBool(m_HashPushingPara, pushableOnCorrectSide);
}