Unity3D实现警报灯

public float fadeSpeed=2f; //灯光亮度渐变速度
public float highIntensity=4f; //亮度最大值
public float highIntensity=0f; //亮度最小值
public float changeMargin=0.2f; //改变目标亮度的标志
public bool alarmOn; //是否开启警报灯
private float targetIntensity; //目标亮度，朝着改变的亮度
private Light alarmLight; //警报灯对象
 
void Awake(){
 alarmLight=GetComponent<Light>();
 alarmLight.intensity=0; //初始量度为0
 targetIntensity=highIntensity; //目标为最大亮度
}
 
//切换目标亮度
void ChangeTargetIntensity(){
 if(Mathf.Abs(targetIntensity-alarmLight.intensity)<changeMargin){
 if(targetIntensity==highTensity)
  targetIntensity=lowTensity;
 else 
  targetIntensity=highTensity;
 }
}
 
//控制警报灯开启逻辑代码
void Update(){
 if(alarmLight){
 alarmLight.intensity=Mathf.Lerp(alarmLight.intensity,targetIntensity,fadeSpeed*Time.deltaTime);
 ChangdeTargetIntensity();
 }else{
 alarmLight.intensity=Mathf.Lerp(alarmLight.intensity,0f,fadeSpeed*Time.deltaTime);
 ChangdeTargetIntensity();
 }
}