Can't convert int to bool?

body.grounded is probably an int.

You need to start a trinary operator with a boolean expression.

What are you actually trying to accomplish with that line of code?

If thats not it, then it is likely that r.drag is a boolean, but i suspect the former.

RigidBody.drag is a float. Don't know if this helps

Here's the full script if you could give me a write out solution.

 using UnityEngine;
 using System.Collections;
 
 public class GravityAttractor : $$anonymous$$onoBehaviour 
 {
     //SET TO TRUE FOR $$anonymous$$ONO-DIRECTIONAL GRAVITY
     private bool useLocalUpVector = false;
     //FORCE APPLIED ALONG GRAVITY UP VECTOR(NEGATIVE = DOWN)
     public float gravityForce = -10;
 
     public void Attract(PlanetaryGravity body)
     {
         Vector3 gravityUp;
         Vector3 localUp;
         Vector3 localForward;
 
         Transform t = body.transform;
         Rigidbody r = body.rigidbody;
 
         //FIGURE OUT THE BODIES UP VECTOR
         if(useLocalUpVector)
         {
             gravityUp = transform.up;   
         } 
         else 
         {
             gravityUp = t.position - transform.position;
             gravityUp.Normalize();
         }
 
         // Accelerate the body along its up vector
         r.AddForce( gravityUp * gravityForce * r.mass );
         r.drag = body.grounded ? 1 : 0.1f;
 
         // If the object's freezerotation is set, we force the object upright
         
         if(r.freezeRotation)
         {
             
             // Orient relatived to gravity
             localUp = t.up;
             var q = Quaternion.FromToRotation(localUp, gravityUp);
             q = q * t.rotation;
             t.rotation = Quaternion.Slerp(t.rotation, q, 0.1f);
             localForward = t.forward;    
         }
 
     }
 }
 

What's the exact text of the compile error?

You may be able to fix this by changing 1 to 1f. The two outputs of a ternary operator must have a common type; you're offering an int and a float, and I don't know offhand if the compiler will cast implicitly.

t might be a problem with my conversion from Javascript to C Sharp?