[英]Moving the player on the y-axis
我现在正在为 Android 开发 Pong-Clone,并观看了有关它的教程。 它与键盘完美配合,但我如何在手机上获得类似的控制。 我当前的代码如下所示:
private void Start()
{
ball = GameObject.FindGameObjectWithTag("Ball").GetComponent<Ball>();
col = GetComponent<BoxCollider2D>();
if (side == Side.Left)
forwardDirection = Vector2.right;
else if (side == Side.Right)
forwardDirection = Vector2.left;
}
private void Update()
{
if (!overridePosition)
MovePaddle();
}
private void MovePaddle()
{
float targetYPosition = GetNewYPosition();
ClampPosition(ref targetYPosition);
transform.position = new Vector3(transform.position.x, targetYPosition, transform.position.z);
}
private void ClampPosition(ref float yPosition)
{
float minY = Camera.main.ScreenToWorldPoint(new Vector3(0, 0)).y;
float maxY = Camera.main.ScreenToWorldPoint(new Vector3(0, Screen.height)).y;
yPosition = Mathf.Clamp(yPosition, minY, maxY);
}
private float GetNewYPosition()
{
float result = transform.position.y;
if (isAI)
{
if (BallIncoming())
{
if (firstIncoming)
{
firstIncoming = false;
randomYOffset = GetRandomOffset();
}
result = Mathf.MoveTowards(transform.position.y, ball.transform.position.y + randomYOffset, moveSpeed * Time.deltaTime);
}
else
{
firstIncoming = true;
}
}
else
{
float movement = Input.GetAxisRaw("Vertical " + side.ToString()) * moveSpeed * Time.deltaTime;
result = transform.position.y + movement;
}
return result;
}
我希望玩家在 y 轴上移动,但我不知道如何使用触摸控制来做到这一点(我是游戏新手)。 我真的很感激任何帮助,所以我可以继续编程:)
如果您想按住使 object 移动,您可以制作两个按钮,一个用于 +y,另一个用于 -y。 然后使用Input.GetTouch
注册玩家输入。
我将通过触摸并向上或向下拖动来假设你想要什么。
我会保留您的代码以进行调试,并添加一个开关以仅在支持触摸时使用触摸,否则使用您的代码。
// Adjust via the Inspector how much the user has to drag in order to move the padel
[SerializeField] private float touchDragSensitivity = 1;
private float lastTouchPosY;
// Make sure to store the camera
// Using Camera.main is quite expensive!
[SerializeField] private Camera _mainCamera;
private void Awake()
{
if(!_mainCamera) _mainCamera = GetComponent<Camera>();
...
}
private float GetNewPosition()
{
...
else
{
var movement = 0f;
if(!Input.touchSupported)
{
// For non-touch device keep your current code
movement = Input.GetAxisRaw("Vertical " + side.ToString()) * moveSpeed * Time.deltaTime;
}
else
{
if(Input.touchCount > 0)
{
var touch = Input.GetTouch(0);
var touchPositionY = _mainCamera.ScreenToWorldPoint(touch.position).y;
if(touch.phase = TouchPhase.Moved)
{
var delta = touchPositionY - lastTouchPosY;
movement = delta * touchDragSensitivity;
}
lastTouchPosY = touchPositionY;
}
}
result = transform.position.y + movement;
}
}
或者,如果您希望获得与按钮输入类似的体验,您也可以只检查触摸是在屏幕的下半部分还是上半部分,并像之前的原始代码一样不断移动 padel:
private void Update()
{
...
else
{
var movement = 0f;
if(!Input.touchSupported)
{
// For non-touch device keep your current code
movement = Input.GetAxisRaw("Vertical " + side.ToString()) * moveSpeed * Time.deltaTime;
}
else
{
if(Input.touchCount > 0)
{
var touch = Input.GetTouch(0);
var touchPositionY = touch.position.y;
movement = (touchPositionY >= Screen.height / 2f ? 1 : -1) * moveSpeed * Time.deltaTime;
}
}
result = transform.position.y + movement;
}
}
更新
至于你的问题
有什么办法可以分割屏幕让两个玩家可以在同一个屏幕上玩
是的:您可以使用touch.position.x >= screen.width / 2f
=> 右侧添加检查触摸在哪一侧。
例如,您可以过滤有效的触摸,例如
if(Input.touchCount > 0)
{
if(side == Side.Right)
{
var validTouches = Input.touches.Where(t => t.position >= Screen.width / 2f).ToArray();
if(validTouches.Length > 0)
{
var touchPositionY = validTouches[0].position.y;
movement = (touchPositionY >= Screen.height / 2f ? 1 : -1) * moveSpeed * Time.deltaTime;
}
}
else
{
var validTouches = Input.touches.Where(t => t.position < Screen.width / 2f).ToArray();
if(validTouches.Length > 0)
{
var touchPositionY = validTouches[0].position.y;
movement = (touchPositionY >= Screen.height / 2f ? 1 : -1) * moveSpeed * Time.deltaTime;
}
}
}
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