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Question by alexkaskasoli · Apr 09, 2014 at 09:09 PM · rigidbodyjump

Making a jump with Rigidbody2D character

I'm trying out the newish Unity 2D features.

I'm trying to make a basic platformer. I've got left/right movement working with AddForce but I'm getting stuck on the jump. Here's what I have:

     if (Input.GetKeyDown(KeyCode.Space) & grounded) {
         jumping = true;
         rigidbody2D.AddForce(jumpForce * Time.deltaTime);
     }

The problem with using the AddForce method is that to get the character to jump I have to set an quite high value to the jumpForce vector, and when adding a big force the character "teleports" quite high quite fast: it's not a smooth jump.

How would you make a Rigidbody2D jump for a 2d platform game?

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Answer by Esildorr · Apr 09, 2014 at 10:08 PM

In my game I changed its velocity:

 var jumpForce : float = 10.0;
 
 rigidbody2D.velocity = Vector2(0,jumpForce);
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avatar image alexkaskasoli · Apr 09, 2014 at 10:29 PM 0
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I've tried:

 if (Input.Get$$anonymous$$eyDown($$anonymous$$eyCode.Space) & grounded) {
     print("the debug text displays");
     jumping = true;
     rigidbody2D.velocity = new Vector2(0, jumpForce);
 }

No matter what value I give to jumpForce my character doesn't move at all.

Is there something I'm not getting? (Did you apply gravity manually?)

avatar image Esildorr · Apr 10, 2014 at 02:30 PM 0
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$$anonymous$$ake sure your mass on the ridgedbody is not to high, use gravity is checked. And you might have to play with the jumpForce variable. $$anonymous$$ake higher.

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