How do i shoot in the direction im facing?

Question

Hi guys I've tried everything that I could think of but sadly im a huge noob. Can anyone help figure out why I cant shoot to the left. This is my shoot script attached to the shoot point.

 // Update is called once per frame
 void Update()
 {
     if (Input.GetKeyDown(KeyCode.K))
     {
         Rigidbody2D instantiatedProjectile = Instantiate(projectile, transform.position, transform.rotation) as Rigidbody2D;
         instantiatedProjectile.velocity = transform.TransformDirection(new Vector3(20, 0, speed));

         projectile.velocity = new Vector2(velX, velY);
     }
 }

}

Here is my Controller script.

 {
     rb = GetComponent<Rigidbody2D>();
     spriteRenderer = GetComponent<SpriteRenderer>();
     animator = GetComponent<Animator>();
 }

 void Update()

 {
     Vector2 move = Vector2.zero;

     float horizontal = Input.GetAxis("Horizontal"); // a or left = -1 d or right = 1

     rb.velocity = new Vector2(horizontal * Speed, rb.velocity.y);

     animator.SetFloat("Speed", Mathf.Abs(horizontal));

     if (Input.GetButtonDown("Jump") && grounded)
     {
         velocity.y = jumpTakeOffSpeed;
     }
     else if (Input.GetButtonUp("Jump"))
     {
         if (velocity.y > 0)
         {
             velocity.y = velocity.y * 0.5f;
         }
     }

     animator.SetBool("grounded", grounded);
     animator.SetFloat("velocityX", Mathf.Abs(velocity.x) / maxSpeed);

     targetVelocity = move * maxSpeed;
 }

}

Answer 1

Best Answer

Answer by Vega4Life · Jul 31, 2019 at 05:28 PM

So when you do a flip on a spriteRenderer, it doesn't change the objects orientation. Thus when yo do something like, (transform.TransformDirection(new Vector3(20, 0, speed)); ) this will still shoot towards the right.

You could manually keep track of that flip in an int flipState, where 1 is to the right, -1 is to the left. Change the int when you flip the renderer. Then just multiply this int value to the transform.TransformDirection(new Vector3(20, 0, speed)) * flipState; Where a positive transform is right, negative is left.

Hopefully that makes sense.

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ReubenClare123 · Jul 31, 2019 at 05:31 PM 1

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Thanks Helps a lot =)

ReubenClare123 · Jul 31, 2019 at 05:37 PM 0

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How do I write that when its -1 it = to the left.

Vega4Life ReubenClare123 · Jul 31, 2019 at 05:42 PM 0

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This all your doing really. You declare an int, then just change the value of it when you flip the renderer:

     // This is declared at the top of your script
    int flipState = 1;  // We start looking to the right (by default)
 
   // Then change it if you flip your renderer
     mySpriteRenderer.flipX = false;
     flipstate = 1;
 
     mySpriteRenderer.flipX = true;
     flipstate = -1
 
    // Then later, multiply the flipstate to your transform.transformdirection

ReubenClare123 Vega4Life · Jul 31, 2019 at 05:43 PM 1

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Ok thanks pal =)

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Answer 2

This is my flip script as well:

// variable to hold a reference to our SpriteRenderer component private SpriteRenderer mySpriteRenderer;

 // This function is called just one time by Unity the moment the component loads
 private void Awake()
 {
     // get a reference to the SpriteRenderer component on this gameObject
     mySpriteRenderer = GetComponent<SpriteRenderer>();
 }

 // This function is called by Unity every frame the component is enabled
 private void Update()
 {
     if (Input.GetKeyDown(KeyCode.D))
     {
         // flip the sprite
         mySpriteRenderer.flipX = false;
     }

     // if the A key was pressed this frame
     if (Input.GetKeyDown(KeyCode.A))
     {
         // if the variable isn't empty (we have a reference to our SpriteRenderer
         if (mySpriteRenderer != null)
         {
             // flip the sprite
             mySpriteRenderer.flipX = true;
         }
     }
 }

}

Answer 3

Answer by MounirDev · Jul 31, 2019 at 07:51 PM

@ReubenClare123 Quaternion.identity :) if you want to shoot a bullet in front of you character or gun you do simply : Instantiate(bulletPrefab, transform.position, Quaternion.identity); this will set the bullet rotation like you character's. then just give your bullet game Object a scrip to move forward.

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How do i shoot in the direction im facing?

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