need help converting java to c# on vector3

Unity Engine
1

Hi, I got a code from a friend in java and I need to convert it in c# but seems that nothing working and I didn’t find any help on web
here is parts of code :

Vector3  direction = position - transform.position;
...
Vector3  forward = transform.TransformDirection(Vector3.forward);
...
direction = forward * cm.maxForwardSpeed * speedModifier;
...
var directionVector = direction.forward;

now
on the last line Unity gives me this error :

Member 'UnityEngine.Vector3.forward.get' cannot be accessed with an instance reference; qualify it with  a type name instead

what should I do and how should I change the script?
thanks

2

Well first there’s no var in C# and i have no idea what Vector3.forward.get is, so you should take that out i’m not sure what you’re doing because i don’t see Vector3.forward.get in the script

3

This is a common mistake, but the language you’re using is called JavaScript (aka UnityScript), not Java. (Java is a completely different language, and is not supported in Unity.)

Also, note that this:

Vector3  forward = transform.TransformDirection(Vector3.forward);

Can simply be written as ‘Vector3 forward = transform.forward’. (Or you can just use transform.forward directly.)

The reason this code:

var directionVector = direction.forward;

Doesn’t work is that you’re trying to access a static property through an object instance. In other words, a vector doesn’t have its own ‘forward’ vector.

I’m not sure what the intent is there though. Can you post the original UnityScript code?

4

Sure there is :slight_smile:

5

ok guys here is the code :

    void MoveTowards (Vector3  position ) 
    {
	    var cm = GetComponent<CharacterMotor>();
	    Vector3 direction = position - transform.position;
	    direction=new Vector3 (direction .x, 0,direction .z);
	    if (direction.magnitude < 0.5) {
		    Stop ();
		    return;
	    }
    	
	    // Rotate towards the target
	    var facingDirection = direction;
	    if (facingDirection.magnitude>1) facingDirection = facingDirection.normalized;
	    cm.desiredFacingDirection = facingDirection;
    	
	    // Modify speed so we slow down when we are not facing the target
	    var forward = transform.TransformDirection(Vector3.forward);
	    var speedModifier = Vector3.Dot(forward, direction.normalized);
	    speedModifier = Mathf.Clamp01(speedModifier);
    	
	    // Move the character
	    direction = forward * cm.maxForwardSpeed * speedModifier;
    	
	    var directionVector = direction .forward;
	    if (directionVector.magnitude>1) directionVector = directionVector.normalized;
	    cm.desiredMovementDirection = directionVector;
    	
	    SendMessage("SetSpeed", cm.maxForwardSpeed * speedModifier, SendMessageOptions.DontRequireReceiver);
    }
6

I should mention that the error I wrote was from vs.net compiler
but
unity says this error :

error CS0176: Static member `UnityEngine.Vector3.forward' cannot be accessed with an instance reference, qualify it with a type name instead
7

can this solve the problem or will it cause undesired effects ?
changing this :

var directionVector = direction.forward;
if (directionVector.magnitude>1) directionVector = directionVector.normalized;
    cm.desiredMovementDirection = directionVector;

to this :

if (direction.magnitude > 1)
    cm.desiredMovementDirection = direction.normalized;