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HomeGame Developmentc# - Altering GameObject Place with the brand new InputSystem Unity 2D

c# – Altering GameObject Place with the brand new InputSystem Unity 2D

I am unsure I perceive your query 100%, however for the goal of attacking left, you possibly can merely deal with the Participant as an entire and flip it horizontally. In 2D video games we regularly use scale(-1,1) to do that:

public Rework participant;
personal void OnMove(InputValue worth)
    moveInputValue = worth.Get<Vector2>();
    participant.localScale = new Vector2((moveInputValue.x > 0?1:-1),1);


After some restricted observations, I lastly perceive what you need. Now let’s make a listing of what has been achieved and what want to be achieved.


  1. Participant shifting.
  2. Injury Dealing.
  3. Attacking settle down.

To be achieved:

  1. The assault path is decided by the motion path(360°). This consists of the place of the assault level and the rotation of the form used for detection.

To attain the player-centered rotation of the assault level, the worth that the developer must set is now not a hard and fast level(attackPos), however a hard and fast distance(attackRange).

// public Rework attackPos;
public float attackRange; // substitute attackPos with attackRange

The calculation of the precise place follows the components:

attackPos = playerPos + normalized(attackDirection)*attackRange

normalized means preserve the path of the vector and alter its size to 1.

vector*quantity means preserve the path of the vector and multiply its size.

normalized(attackDirection)*attackRange means a vector with a size of attackRange within the attackDirection, it is a relative worth, so we have to add the place vector of the participant itself.

enter image description here

So now we will do that:

    var attackPos = (Vector2) + attackDir*attackRange; //Get the world coordinates of attackPos
    var enemiesToDamage = Physics2D.OverlapBoxAll(
            new Vector2(attackRangeX, attackRangeY),

*You should use the built-in member variable remodel to get the remodel of the gameobject the place the present script is positioned.

How can we get attackDir? It primarily is determined by the path of motion, so simply use the normalized worth of moveInputValue. However when the motion stops, the worth of moveInputValue is, which prevents the assault from executing accurately. When the participant stops shifting, we have to get the final shifting path because the assault path. We are able to set a non-zero preliminary worth for attackDir, and solely when moveInputValue just isn’t 0, overwrite attackDir with its normalized worth.

personal Vector2 moveInputValue;
personal Vector2 attackDir = Vector2.proper; // unbiased path of assault

personal void OnMove(InputValue worth)
    moveInputValue = worth.Get<Vector2>();
    if(moveInputValue !={
        attackDir = moveInputValue.normalized; //When the participant stops shifting, use the final motion path because the assault path

Now let’s take a look at rotation. We are able to use Vector2.Angle and Vector2.SignedAngle to get the angle between two vectors. So we will calculate the angle between a vector and a vector with an angle of 0 to get the angle worth of this vector:

var angle = Vector2.SignedAngle(Vector2.up,attackDir); //Solid Vector2 to angle[-180,180], it is utilized in OverlapBoxAll

Or you should utilize trigonometric capabilities to determine the angle of a vector:

public float Angle(Vector2 vector2)
    return 360 - (Mathf.Atan2(vector2.x, vector2.y) * Mathf.Rad2Deg * Mathf.Signal(vector2.x));

Lastly, we’d like a visible debugging technique. Unity doesn’t have an api for DrawBox with a rotation angle. You’ll be able to debug it by no matter you want, comparable to calculating the coordinates of the 4 factors of the rectangle and drawing 4 line segments, or utilizing a sprite object as a debugger.

BTW, If you calculate the speed and apply it to the inflexible physique, you do not want Time.fixedDeltaTime, This a part of the calculation is dealt with by the physics part of the engine itself.

personal void MoveLogicMethod()
    // Vector2 consequence = moveInputValue * pace * Time.fixedDeltaTime;
    Vector2 consequence = moveInputValue.normalized * pace; //fixedDeltaTime just isn't wanted right here
    rb2D.velocity = consequence;



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