ColorCtr控制颜色渐变

ColorCtr控制颜色渐变

public class ColorCtr : MonoBehaviour

{

public static global_color Instance;         //方便外部调用

public float speed = 1F;             //定义速度

public GameObject goRawImage;            //定义遮挡Object

private RawImage _image;              //定义遮挡图片

private bool _toClear = true;            //定义变亮bool

private bool _toBlack = false;           //定义变暗bool

//初始化

void Awake()

{

//调用实例

Instance = this;

//判断是否有遮挡物、找到遮挡图片

if (goRawImage)

{

_image = goRawImage.GetComponent<RawImage>();

}

}

//外部调用，改变bool变亮

public void setToClear()

{

_toClear = true;

_toBlack = false;

}

//外部调用，改变bool变暗

public void setToBlack()

{

_toClear = false;

_toBlack = true;

}

//改变颜色插值变亮方法

private void FadeToClear()

{

_image.color = Color.Lerp(_image.color, Color.clear, speed*Time.deltaTime);

}

//改变颜色插值变暗方法

private void FadeToBlack()

{

_image.color = Color.Lerp(_image.color, Color.black, speed * Time.deltaTime);

}

//变亮方法的具体实现

private void SceneToClear()

{

//调用改变颜色变亮插值

FadeToClear();

//颜色彻底改变

if (_image.color.a <= 0.05)

{

_image.color = Color.clear;

_image.enabled = false;

_toClear = false;

}

}

//变暗方法的具体实现

private void SceneToBlack()

{

//打开image

_image.enabled = true;

//调用改变颜色变暗插值

FadeToBlack();

//颜色彻底改变

if (_image.color.a >= 0.95)

{

_image.color = Color.black;

_toClear = false;

}

}

//时刻检测bool变量是否改变，调用方法

void Update()

{

if (_toClear)

{

//调用变亮方法

SceneToClear();

}

else if (_toBlack)

{

//调用变暗方法

SceneToBlack();

}

}

}

注：需要有 goRawImage遮挡物、_image遮挡图片，通过调用setToClear和setToBlack方法具体实现、、、