Dashing with rigidbody2D not working right

Question

So I asked a similar question few days ago regarding jumping, and it lead me to an aswer that I'm actually cancelling out my Y velicity with the part of the script that handles rest of the movement. Now I was t$$anonymous$$nking about implementing das$$anonymous$$ng using rigidbody2D.AddForce(Vector3.right * dashSpeed); ,but the code is being cancelled out because the X value ir being updated every frame using values from directional keys, if that makes sense. So can you guys please help me figure out a workaround?

Here's my code:

     public int HorizontalSpeed = 10;
         public float jumpSpeed = 1000f;
         public float dashSpeed = 1000f;
         private Vector2 movement;
         public bool fallin = false;
     
     void Update () {
             //Horizontal movement
             float inputX = Input.GetAxis ("Horizontal");
             movement = new Vector2 (inputX * HorizontalSpeed, rigidbody2D.velocity.y);
     }
     
     void FixedUpdate () {
     
         //Jumping
         if (Input.GetKeyDown(KeyCode.X))
         {
             rigidbody2D.AddForce(Vector3.right * dashSpeed);
         }
     
         //Jumping
         if (Input.GetKeyDown(KeyCode.Space) && fallin == false)
         {
             rigidbody2D.AddForce(Vector3.up * jumpSpeed);
         }
         fallin = true;
     
         rigidbody2D.velocity = movement; //T$$anonymous$$s zeroes out the x value each frame
 // so I can't dash properly. It just blinks instead of being smooth. Workaround?
     }
     
     void OnCollisionStay2D() {
         fallin = false;
     }

Answer 1

Answer by melkorinos · Feb 24, 2015 at 09:29 AM

You can use AddForce with a force mode, i would try impulse.

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Lainex · Feb 24, 2015 at 03:50 PM 0

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That still doesn't seem to work. It is still being cancelled out by the horzintal user input.

melkorinos · Feb 24, 2015 at 04:23 PM 0

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mm ok . This is a workaround but you could implement a timer along with a variable that is called dashTime which will be how long you want the dash to last. So when dashing you set the timer = Time.time and then in your update you execute the movement command if timer + dashTime> Time.time.

Another thing you could do is to use lerp. So you would set a dashSpeed var and then when dashing you could set a bool true and in your update script you would do

 HorizontalSpeed = Mathf.Lerp (dashSpeed, HorizontalSpeed , dashTime);

play around with the values to achieve what you want, e.g change dashTime to Time.something values.

Answer 2

Answer by brlan10 · Oct 20, 2016 at 01:01 PM

You just need to disable whatever input is interrupting your dash. Idk if your dash is anyt$$anonymous$$ng like mine, but I disable all other player actions for the duration of the dash. I have float dashDuration w$$anonymous$$ch designates how long I want the dash to last.

so after you do that, somet$$anonymous$$ng like t$$anonymous$$s would work:

 if(!isDas$$anonymous$$ng){
       rigidbody2D.velocity = movement
 }

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Dashing with rigidbody2D not working right

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