JointMotor 关节动力

Struct

The JointMotor is used to motorize a joint.

jointMotor用来转动一个关节。

For example the HingeJoint can be told to rotate at a given speed and force. The joint will then attempt to reach the velocity with the given maximum force.

例如：Hingejoint可以被告知以给定的速度和力旋转。关节然后用给定的最大力试图到达这个速度。

参考：HingeJoint

Variables变量

• targetVelocity
  The motor will apply a force up to force to achieve targetVelocity.
  该动力将应用一个最大的力以达到目标速度（targetVelocity）。
• force
  The motor will apply a force.
  该动力将应用一个的力。
• freeSpin
  If freeSpin is enabled the motor will only accelerate but never slow down.
  如果freeSpin被启用，该动力将只加速而不会减速。