c# - How do I stop the rotation of my gameobject when it reaches a certain point on its y-axis? -

i'm working on simple baseball game. i'm trying have player able swing bat backwards "charge up" power, speak, , when button released swing bat forward @ speed equal amount of power stored up.

this , good, problem need stop motion of bat when reach point on y-axis, , i'm bit unsure how go doing cannot tell stop rotating after set time bat won't reach front point @ same time every time due difference in speed each swing might have.

what i'm trying if(reached 266 on y-axis stop rotating), i'm unsure of how this.

anyway here code i've written far:

public int rotatespeed = 50; public float amountofpowerchargedup = 0;  void update()  {      if (input.getmousebutton(0))         {         amountofpowerchargedup += 5f;         transform.rotate(vector3.up * rotatespeed * time.deltatime);          debug.log(amountofpowerchargedup);     }      if (!input.getmousebutton (0))      {         transform.rotate(vector3.down * amountofpowerchargedup * time.deltatime);     }     }  private void ongui() {     gui.label (new rect (50, 15, 250, 25), "amountofpowerchargedup: " + amountofpowerchargedup);  } 

if rotating amount of degrees, should use slerp or rotatetowards

vector3 targetdir = (target.position - transform.position).normalized;  // step size equal speed times frame time. float step = speed * time.deltatime;  vector3 newdir = vector3.rotatetowards(transform.up, targetdir, step, 0.0);  transform.rotation = quaternion.lookrotation(newdir)