C#•13mo ago

❔ Need help trying to make 2D car move from above

// {
        if (Input.GetKeyDown(KeyCode.W) == true)
        {
            myRigidbody.velocity = Vector2.up * 1;
        }
        if (Input.GetKeyUp(KeyCode.W) == true)
        {
            myRigidbody.velocity = Vector2.zero;
        }
        if (Input.GetKeyDown(KeyCode.A) == true)
        {
            myRigidbody.transform.Rotate(new Vector3(0, 0, 90));
        }
    }

// {
        if (Input.GetKeyDown(KeyCode.W) == true)
        {
            myRigidbody.velocity = Vector2.up * 1;
        }
        if (Input.GetKeyUp(KeyCode.W) == true)
        {
            myRigidbody.velocity = Vector2.zero;
        }
        if (Input.GetKeyDown(KeyCode.A) == true)
        {
            myRigidbody.transform.Rotate(new Vector3(0, 0, 90));
        }
    }

With this code I can only move it up and rotate left 90 degrees. I want to be able of rotating it 90 degrees left and then when I press W it keeps moving in the left direction. Some kind of forward code

5 Replies

HimmDawg•13mo ago

You gotta change the directional vector. Which admittedly doesn't directly exist for you right now.

Vector2.up * 1;
     ^ there it is

Vector2.up * 1;
     ^ there it is

in 2D, the next position for a movement can be described as x' = x + directionalVector * velocity So when you press A, your directional vector also needs to rotate by 90°

NAS24•13mo ago

Ok So what do I change it to?

HimmDawg•13mo ago

That's Unity, right? Not sure if there's a more elegant way, but I'd just store a Vector2 in that class and everytime I press A, it rotates by 90°. then, instead of using Vector2.up, you use that new vector

NAS24•13mo ago

It is Unity yes

Accord•13mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ Need help trying to make 2D car move from above