Unity3D鼠标滚轮控制摄像机远近

//  鼠标中间键var MouseWheelSensitivity = 5;var MouseZoomMin = 2;var MouseZoomMax = 10;

?? 摄像机距离视角中心最近为2,最远为10,鼠标灵敏度为5

// 如果按住滑轮if (Input.GetAxis("Mouse ScrollWheel") != 0) {//Debug.Log(Input.GetAxis("Mouse ScrollWheel"));//Debug.Log(distance);if (normalDistance >= MouseZoomMin && normalDistance <= MouseZoomMax){normalDistance -= Input.GetAxis("Mouse ScrollWheel") * MouseWheelSensitivity;}if (normalDistance < MouseZoomMin){normalDistance = MouseZoomMin;}if (normalDistance > MouseZoomMax){normalDistance = MouseZoomMax;}}

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