Problem with raycast

Hi all,

I am creating a script to detect the floor and ceiling, but not working correctly, the problem is that when it detects the ground the variable "Isgrounded" switch to true, but when it does not detect the ground variable "IsGrounded" does not change false.

this is my code

Code (csharp):

1. if(Physics.Raycast(detectFloorDown, out hitDown, csextents.y +  raycastOffsetDown))
2.         {
3.  
4.             if(hitDown.collider.name == "ground")
5.             {
6.                 grounded = true;
7.             }
8.             else
9.             {
10.                 grounded=false;
11.                
12.             }

the code never returns false when collision with the ground switch to true and is always true

 

Whenever the raycast hits nothing, the grounded flag has to be set to false as well.

Code (csharp):

1. if(Physics.Raycast(detectFloorDown, out hitDown, csextents.y + raycastOffsetDown))
2. {
3.     if(hitDown.collider.name == "ground")
4.     {
5.         grounded = true;
6.     }
7.     else
8.     {
9.         grounded = false;
10.     }
11. } else {
12.     grounded = false;
13. }

 

Hi Dantus, thanks for your help, Now another problem has appeared: (, now works fine, but when it detects the ground, "IsGrounded" switch to true, but then switch to being false even colliding with the ground.

 

That means the raycast doesn't hit the ground. You may try to draw the ray using that:
https://docs.unity3d.com/Documentation/ScriptReference/MonoBehaviour.OnDrawGizmos.html

 

hi, yes, I'm using Debug.DrawLine, and the ray is hitting the ground, strikes cuanod "IsGrounded" switch to true, but then immediately switch to false, because it does not hold true if the ray is inside the collider.

 

You just formulated the solution yourself. Make sure the ray is not inside of the collider by making sure the raycast starts slightly higher.