GameObject move incorrect

Questions & Answers
1

In my project GameObject are moving when I press w/s/a/d buttons. But if I’ll press w + a, then it react only on the 1st button w. How to make it to react on the both of them?

    public GameObject player;
	public int moveSpeed = 10;
	public int rotateSpeed = 100;

	void Start ()
	{
		player = (GameObject)this.gameObject;
	}

	void Update ()
	{
    	    if (Input.GetKey (KeyCode.W)) 
		player.transform.position += player.transform.forward * moveSpeed * Time.deltaTime;
	    else if (Input.GetKey (KeyCode.S)) 
		player.transform.position -= player.transform.forward * moveSpeed * Time.deltaTime;
	    else if (Input.GetKey (KeyCode.A)) 
		transform.Rotate (Vector3.down * Time.deltaTime * rotateSpeed);
	    else if (Input.GetKey (KeyCode.D))
	        transform.Rotate (Vector3.up * Time.deltaTime * rotateSpeed);
	}
2

Simple, don’t use “else if”, just “if”, and the underlying function will be applied.

if (Input.GetKey (KeyCode.W)) 
    player.transform.position += player.transform.forward * moveSpeed * Time.deltaTime;
if (Input.GetKey (KeyCode.S)) 
    player.transform.position -= player.transform.forward * moveSpeed * Time.deltaTime;
if (Input.GetKey (KeyCode.A)) 
    transform.Rotate (Vector3.down * Time.deltaTime * rotateSpeed);
if (Input.GetKey (KeyCode.D))
    transform.Rotate (Vector3.up * Time.deltaTime * rotateSpeed);

But if don’t want conflicts when either “w+s” and “a+d” are pressed, then remove only the “else if” before KeyCode.A:

if (Input.GetKey (KeyCode.W)) 
    player.transform.position += player.transform.forward * moveSpeed * Time.deltaTime;
else if (Input.GetKey (KeyCode.S)) 
    player.transform.position -= player.transform.forward * moveSpeed * Time.deltaTime;
if (Input.GetKey (KeyCode.A)) 
    transform.Rotate (Vector3.down * Time.deltaTime * rotateSpeed);
else if (Input.GetKey (KeyCode.D))
    transform.Rotate (Vector3.up * Time.deltaTime * rotateSpeed);