C# Vector3.Lerp仅执行第一次线性插值
当用户在键盘上输入左键或右键时,我试图让玩家飞船在三个点之间移动。我希望玩家在这些点之间平稳移动,但是C# Vector3.Lerp仅执行第一次线性插值,c#,unity3d,lerp,C#,Unity3d,Lerp,当用户在键盘上输入左键或右键时,我试图让玩家飞船在三个点之间移动。我希望玩家在这些点之间平稳移动,但是Lerp函数似乎只插值一次 下面是游戏主机脚本,它检查用户的输入并将其传递到执行Lerp的玩家控制器: 游戏大师: void Update () { if (gameIsRunning) { if (Input.GetKeyDown(KeyCode.A)) { //Go Left player.Mov
Lerp
函数似乎只插值一次
下面是游戏主机
脚本,它检查用户的输入并将其传递到执行Lerp的玩家控制器
:
游戏大师:
void Update ()
{
if (gameIsRunning)
{
if (Input.GetKeyDown(KeyCode.A))
{
//Go Left
player.MovePlayer("left");
}
else if (Input.GetKeyDown(KeyCode.D))
{
//Go Right
player.MovePlayer("right");
}
//Only run this if the game is running...
if (player.Lives <= 0)
{
gameIsRunning = false;
}
}
}
public void MovePlayer (string dir)
{
if (dir == "left")
{
if (currentPosition == Position.Left)
{
//Do Nothing!
return;
}
if (currentPosition == Position.Middle)
{
transform.position = Vector3.Lerp(middlePos.position, leftPos.position, .5f);
currentPosition = Position.Left;
}
if (currentPosition == Position.Right)
{
transform.position = Vector3.Lerp(rightPos.position, middlePos.position, .5f);
currentPosition = Position.Middle;
}
}
if (dir == "right")
{
if (currentPosition == Position.Right)
{
//Do Nothing!
return;
}
if (currentPosition == Position.Middle)
{
transform.position = Vector3.Lerp(transform.position, rightPos.position, .5f);
currentPosition = Position.Right;
}
if (currentPosition == Position.Left)
{
transform.position = Vector3.Lerp(transform.position, middlePos.position, .5f);
currentPosition = Position.Middle;
}
}
}
屏幕截图:
void Update ()
{
if (gameIsRunning)
{
if (Input.GetKeyDown(KeyCode.A))
{
//Go Left
player.MovePlayer("left");
}
else if (Input.GetKeyDown(KeyCode.D))
{
//Go Right
player.MovePlayer("right");
}
//Only run this if the game is running...
if (player.Lives <= 0)
{
gameIsRunning = false;
}
}
}
public void MovePlayer (string dir)
{
if (dir == "left")
{
if (currentPosition == Position.Left)
{
//Do Nothing!
return;
}
if (currentPosition == Position.Middle)
{
transform.position = Vector3.Lerp(middlePos.position, leftPos.position, .5f);
currentPosition = Position.Left;
}
if (currentPosition == Position.Right)
{
transform.position = Vector3.Lerp(rightPos.position, middlePos.position, .5f);
currentPosition = Position.Middle;
}
}
if (dir == "right")
{
if (currentPosition == Position.Right)
{
//Do Nothing!
return;
}
if (currentPosition == Position.Middle)
{
transform.position = Vector3.Lerp(transform.position, rightPos.position, .5f);
currentPosition = Position.Right;
}
if (currentPosition == Position.Left)
{
transform.position = Vector3.Lerp(transform.position, middlePos.position, .5f);
currentPosition = Position.Middle;
}
}
}
为什么会发生这种情况?必须使用不断变化的参数调用lerp。尝试以下方法:
播放器控制器:
enum Direction
{
Left,
Right
}
Direction moveDir;
float progress;
public void MovePlayer (Direction dir)
{
moveDir = dir;
progress = 0.0f;
}
public void Update()
{
switch(dir)
{
case Direction.Left:
if (currentPosition == Position.Middle)
{
transform.position = Vector3.Lerp(middlePos.position, leftPos.position, progress);
if(progress >= 1.0f)
currentPosition = Position.Left;
else
progress += 0.1f; // change as necessary
}
if (currentPosition == Position.Right)
{
transform.position = Vector3.Lerp(rightPos.position, middlePos.position, progress);
if(progress >= 1.0f)
currentPosition = Position.Middle;
else
progress += 0.1f; // change as necessary
}
break;
case Direction.Right:
// ...
break;
}
}