Movement issues with keyboard

Questions & Answers
1

Hello, my first question, so not sure if it is too over asked, but I really need some help.

So, I’m making a top down game, and I have movement code below, and the diagnol movement is faster than the crossWay moving. Any ideas? Thanks a million guys it would help a lot

–Peace

public float speed;
    public Vector2 position;

    public void Update()
    {
        CheckInput();
        transform.position = position;
    }

    public void CheckInput()
    {
        if (Input.GetKey(KeyCode.W))
            position.y += 1;
        if (Input.GetKey(KeyCode.S))
            position.y -= 1;
        if (Input.GetKey(KeyCode.A))
            position.x -= 1;
        if (Input.GetKey(KeyCode.D))
            position.x += 1;
    }
2

There are two ways to do this:

if(Input.GetKey (KeyCode.W))
{
	transform.position = new Vector3(transform.position.x, transform.position.y + 1, transform.position.z);
}

if(Input.GetKey (KeyCode.S))
{
	Vector3 nextPosition = transform.position;
	nextPosition.y -= 1;
	transform.position = nextPosition;
}

For a detailed explanation why: Unity official tutorials - Data Types

In short: You cannot modify your position value, because it is only a copy of transform.position. Instead modify transform.position. Secondly, you cannot modify transform.position.y directly, because it only returns a copy of the value, not the actual reference to the object transform. You have to assign a whole new Vector3 to transform.position to change it.

3

It seems to me that you need to normalize diagonal movement using Time.deltatime…

You move left, right, forward or backwards one unit at a given time, but to move diagonal you need to traverse two units in the same amount of time. Hence, the additional speed perceived.