C# How to check if player is grounded?

Question

How do I convert this to C#?

  var isgrounded : boolean = true;
  
  function Update()
  {
      if(isgrounded == true)
      {
          //Do your action Here...
      }
  }
  
  //make sure u replace "floor" with your gameobject name.on which player is standing
  function OnCollisionEnter(theCollision : Collision){
      if(theCollision.gameObject.name == "floor")
      {
          isgrounded = true;
      }
  }
  
  //consider when character is jumping .. it will exit collision.
  function OnCollisionExit(theCollision : Collision){
      if(theCollision.gameObject.name == "floor")
      {
          isgrounded = false;
      }
  }

//consider when character is jumping .. it will exit collision. function OnCollisionExit(theCollision : Collision){ if(theCollision.gameObject.name == "floor") { isgrounded = false; } }

Answer 1

Best Answer

Answer by tmalhassan · Oct 08, 2017 at 04:57 PM

Hello @watercolorheartdev. Try this:

 bool isgrounded = true;
  
 void Update()
 {
     if (isgrounded == true)
     {
         //Do your action Here...
     }
 }
 
 //make sure u replace "floor" with your gameobject name.on which player is standing
 void OnCollisionEnter(Collision theCollision)
 {
     if (theCollision.gameObject.name == "floor")
     {
         isgrounded = true;
     }
 }
 
 //consider when character is jumping .. it will exit collision.
 void OnCollisionExit(Collision theCollision)
 {
     if (theCollision.gameObject.name == "floor")
     {
         isgrounded = false;
     }
 }

Hope this helps :)

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Marxmon · Jun 21, 2018 at 09:02 AM 1

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Thanks, but your code has an error... The void where u make the isgrounded false has to be like this if (theCollision.gameObject.name != "floor")

Still tho, this helped a lot :)

tmalhassan Marxmon · Jun 21, 2018 at 09:48 AM 1

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Hey there @$$anonymous$$arxmon. I only converted the script from JS to C#. The code is correct tho. What it does is check if there is collision with the object with the name "floor". If there is collision with it, that means the player is grounded. Else, when it exits the collision, the player is not grounded.

Martin_Anderson Marxmon · Jan 20 at 06:23 PM 0

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If anyone is looking at this now, Marxmon's comment is not correct, because this would set isGrounded to false whenever the player stops touching something that is not the ground, rather than whenever they stop touching the ground

ngerbens · Jan 23, 2019 at 09:42 PM 0

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Awesome! Simple solution, but works really good. Thanks!

willrd123 · Dec 17, 2019 at 10:09 PM 0

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I tried this solution, and for some reason it caused the character to speed up in free fall when the WASD or arrow keys are pressed. Any idea why this is?

diliupg willrd123 · Dec 19, 2019 at 05:15 AM 0

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try disabling the control keys

willrd123 diliupg · Dec 19, 2019 at 11:58 PM 0

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Could you please explain how to do this?

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RepublicN · Aug 07, 2020 at 08:26 AM 0

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For those who are designing in 2D, make sure to use OnCollisionExit2D and OnCollisionEnter2D. Also Collision should be Collision2D

TIB69 · Feb 10, 2021 at 07:14 PM 0

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Doesn t work for me

C# How to check if player is grounded?

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