鼠标拖动

最新推荐文章于 2024-07-22 17:30:43 发布

转载最新推荐文章于 2024-07-22 17:30:43 发布 · 49 阅读

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/Study088/p/7146322.html

本文介绍了一种在Unity引擎中使用鼠标拖动来改变旋转速度的方法。通过监测鼠标的移动距离，调整物体的旋转速度，实现平滑且直观的操作体验。文中详细解释了不同操作阶段（按下、移动中、释放）对速度的影响。

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//鼠标拖动
private float previousPositionX;
private float offset;
private bool startReduceSpeed = false;
private bool startAddSpeed = false;
private bool startAddSpeed_reduce = false;
private float reduceSpeed = 10.0f;
private Vector3 mouseCurrentPos = Vector3.zero;
private void checkMouseDragChangeSpeed()
{
#if UNITY_EDITOR
if (Input.GetMouseButtonDown(0))
{
previousPositionX = Input.mousePosition.x;
startAddSpeed = false;
startAddSpeed_reduce = false;
startReduceSpeed = false;
roatSpeed = 15f;
}
if (Input.GetMouseButton(0)) //按下（状态）
{
offset = Input.mousePosition.x - previousPositionX;
if (offset > 0)
{
roatSpeed = 55f;
}
else if (offset < 0)
{
roatSpeed = -30f;
}
previousPositionX = Input.mousePosition.x;
}
if (Input.GetMouseButtonUp(0)) //抬起（瞬间）
{
if (roatSpeed < 15)
{
startAddSpeed = true;
startAddSpeed_reduce = true;
}
else if (roatSpeed > 15)
{
startReduceSpeed = true;
}
mouseCurrentPos = Input.mousePosition;
}
#elif UNITY_IOS || UNITY_ANDROID
if(Input.touchCount <= 0)
{
return;
}
if (Input.GetTouch(0).phase == TouchPhase.Began)
{
startAddSpeed = false;
startAddSpeed_reduce = false;
startReduceSpeed = false;
roatSpeed = 15f;
}
if (Input.GetTouch(0).phase == TouchPhase.Moved)
{
if (Input.GetTouch(0).deltaPosition.x > 0)
{
roatSpeed = 55f;
}
else if (Input.GetTouch(0).deltaPosition.x < 0)
{
roatSpeed = -30f;
}
}
if (Input.GetTouch(0).phase == TouchPhase.Ended)
{
if (roatSpeed < 15)
{
startAddSpeed = true;
startAddSpeed_reduce = true;
}
else if (roatSpeed > 15)
{
startReduceSpeed = true;
}
}
#else
if (Input.GetMouseButtonDown(0))
{
previousPositionX = Input.mousePosition.x;
startAddSpeed = false;
startAddSpeed_reduce = false;
startReduceSpeed = false;
roatSpeed = 15f;
}
if (Input.GetMouseButton(0)) //按下（状态）
{
offset = Input.mousePosition.x - previousPositionX;
if (offset > 0)
{
roatSpeed = 55f;
}
else if (offset < 0)
{
roatSpeed = -30f;
}
previousPositionX = Input.mousePosition.x;
}
if (Input.GetMouseButtonUp(0)) //抬起（瞬间）
{
if (roatSpeed < 15)
{
startAddSpeed = true;
startAddSpeed_reduce = true;
}
else if (roatSpeed > 15)
{
startReduceSpeed = true;
}
mouseCurrentPos = Input.mousePosition;
//mouseIsMove = false;
}
#endif
}