本文介绍了使用Mathf.Clamp()限制对象旋转的问题的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在研究一个在z轴上旋转对象的游戏.我需要将总旋转限制为80度.我尝试了以下代码,但是它不起作用. minAngle = -40.0f和maxAngle = 40.0f
I am working on a game that rotates an object on the z axis. I need to limit the total rotation to 80 degrees. I tried the following code, but it doesn't work. minAngle = -40.0f and maxAngle = 40.0f
Vector3 pos = transform.position;
pos.z = Mathf.Clamp(pos.z, minAngle, maxAngle);
transform.position = pos;
推荐答案
您发布的代码限制了z位置.您想要的是使用transform.rotation
The code you posted clamps the z position. What you want is to use transform.rotation
void ClampRotation(float minAngle, float maxAngle, float clampAroundAngle = 0)
{
//clampAroundAngle is the angle you want the clamp to originate from
//For example a value of 90, with a min=-45 and max=45, will let the angle go 45 degrees away from 90
//Adjust to make 0 be right side up
clampAroundAngle += 180;
//Get the angle of the z axis and rotate it up side down
float z = transform.rotation.eulerAngles.z - clampAroundAngle;
z = WrapAngle(z);
//Move range to [-180, 180]
z -= 180;
//Clamp to desired range
z = Mathf.Clamp(z, minAngle, maxAngle);
//Move range back to [0, 360]
z += 180;
//Set the angle back to the transform and rotate it back to right side up
transform.rotation = Quaternion.Euler(transform.rotation.eulerAngles.x, transform.rotation.eulerAngles.y, z + clampAroundAngle);
}
//Make sure angle is within 0,360 range
float WrapAngle(float angle)
{
//If its negative rotate until its positive
while (angle < 0)
angle += 360;
//If its to positive rotate until within range
return Mathf.Repeat(angle, 360);
}
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