问题描述
尝试从此脚本中获取图像填充量。
public class ProgressBar : MonoBehaviour
{
public static int minimum;
public static int maximum;
public static int current;
public Image mask;
void Update()
{
GetCurrentFill();
}
void GetCurrentFill()
{
float currentOffset = current - minimum;
float maximumOffset = maximum - minimum;
float fillAmount = currentOffset / maximumOffset;
mask.fillAmount = fillAmount;
}
}
我将解释此代码:
当前=当前值,最小值=升级所需的最低经验,最大值=升级所需的最高经验
if(skortotal < 20)
{
playerlevel = 1;
ProgressBar.minimum = 0;
ProgressBar.current = skortotal;
ProgressBar.maximum = 20;
}
if(skortotal >= 20)
{
playerlevel = 2;
ProgressBar.current = skortotal;
ProgressBar.maximum = 50;
ProgressBar.minimum = 20;
}
}
代码已经可以使用,但是我不知道如何使用lerp
解决方法
您问过如何使用Mathf.Lerp来实现这一点,这是我的建议:
mask.fillAmount = Mathf.Lerp(minimum,maximum,current) / maximum;
Lerp将自动钳位值,因此结果始终在[0..1]内。
要随时间变化动画,您可以尝试以下操作:
float actualValue = 0f; // the goal
float startValue = 0f; // animation start value
float displayValue = 0f; // value during animation
float timer = 0f;
// animate the value from startValue to actualValue using displayValue over time using timer. (needs to be called every frame in Update())
timer += Time.deltaTime;
displayValue = Mathf.Lerp(startValue,actualValue,timer);
mask.fillAmount = displayValue;
要启动动画,请在更改ActualValue时执行以下操作:
actualValue = * some new value *;
startValue = maskFillAmount; // remember amount at animation start
timer = 0f; // reset timer.