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Question by RobertG465 · Mar 18, 2016 at 12:30 PM · scripting problemscriptingbasics

Question about functions in Unity. (Completely new to all of this.)

I'm completely new to Unity as well as scripting so I'm just putting basic things together in order to start getting a feel for this. I made this in order to move a cube with wasd in two dimensions....

 if (Input.GetKey("d"))
 {
 GetComponent (Rigidbody2D).velocity = new Vector2 (1*walkingspeed,GetComponent (Rigidbody2D).velocity.y);
 }
 else
 {
 if (Input.GetKey("a"))
 {
 }
 else
 {
 GetComponent (Rigidbody2D).velocity = new Vector2 (0, GetComponent(Rigidbody2D).velocity.y);
 }
 }
 
 if (Input.GetKey("a"))
 {
 GetComponent (Rigidbody2D).velocity = new Vector2 (-1*walkingspeed,GetComponent(Rigidbody2D).velocity.y);
 }
 else
 {
 if (Input.GetKey("d"))
 {
 }
 else
 {
 GetComponent (Rigidbody2D).velocity = new Vector2 (0, GetComponent(Rigidbody2D).velocity.y);
 }
 }
 
 if (Input.GetKey("w"))
 {
 GetComponent (Rigidbody2D).velocity = new Vector2 (GetComponent(Rigidbody2D).velocity.x,1*walkingspeed);
 }
 else
 {
 if (Input.GetKey("s"))
 {
 }
 else
 {
 GetComponent (Rigidbody2D).velocity = new Vector2 (GetComponent(Rigidbody2D).velocity.x,0);
 }
 }
 
 if (Input.GetKey("s"))
 {
 GetComponent (Rigidbody2D).velocity = new Vector2 (GetComponent(Rigidbody2D).velocity.x,-1*walkingspeed);
 }
 else
 {
 if (Input.GetKey("w"))
 {
 }
 else
 {
 GetComponent (Rigidbody2D).velocity = new Vector2 (GetComponent(Rigidbody2D).velocity.x, 0);
 }
 if (Mathf.Pow((GetComponent(Rigidbody2D).velocity.x),2)+ Mathf.Pow((GetComponent(Rigidbody2D).velocity.y),2)>1*walkingspeed)
 {
 if (GetComponent(Rigidbody2D).velocity.x>0) {GetComponent(Rigidbody2D).velocity.x=0.707106781186555*walkingspeed;}
 if (GetComponent(Rigidbody2D).velocity.x<0) {GetComponent(Rigidbody2D).velocity.x=-0.707106781186555*walkingspeed;}
 if (GetComponent(Rigidbody2D).velocity.y>0) {GetComponent(Rigidbody2D).velocity.y=0.707106781186555*walkingspeed;}
 if (GetComponent(Rigidbody2D).velocity.y<0) {GetComponent(Rigidbody2D).velocity.y=-0.707106781186555*walkingspeed;}
 }


This works perfectly. However, in an attempt to make it less repetitive, I tried making a function. I ran into a problem when I tried writing (Input.GetKey(key)) where "key" is an argument in the function. However, I get an error since "key" is not a recognized key input.

So I'm aware I could have no idea what I'm doing here. But is there a way I can make the key input an argument in a function without getting an error?

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