Question by PolymathicIndustries · Jun 14, 2020 at 04:54 PM · rigidbody2d gravity physics2d collider2d platformer

Had to turn off gravity scale, but now player goes through walls

I am a beginner trying to learn to make a basic platformer to start. I made characters in Gimp and exported them, did the same for the background pieces. I did not use a tilemap as I wasn't able to paste my ground block into the tilemap to paint so I just added them to the scene to test the concept. I have a simple player on a simple ground. What is listed below is the code I found that allows me to move my character:

using System.Collections; using System.Collections.Generic; using UnityEngine;

public class Platformer : MonoBehaviour { Rigidbody2D rb;

 public float speed;
 public float jumpForce;

 public float fallMultiplier = 2.5f;
 public float lowJumpMultiplier = 2f;

 bool isGrounded = false;
 public Transform isGroundedChecker;
 public float checkGroundRadius;
 public LayerMask groundLayer;

 public float rememberGroundedFor;
 float lastTimeGrounded;

 public int defaultAdditionalJumps = 1;
 int additionalJumps;



 void Start()
 {
     rb = GetComponent<Rigidbody2D>();

     additionalJumps = defaultAdditionalJumps;
 }

 void Update()
 {
     Move();
     Jump();
     BetterJump();
     CheckIfGrounded();
 }


 void Move() {
     float x = Input.GetAxisRaw("Horizontal");

     float moveBy = x * speed;

     rb.velocity = new Vector2(moveBy, rb.velocity.y);
 }

 void Jump() {
     if (Input.GetKeyDown(KeyCode.Space) && (isGrounded || Time.time - lastTimeGrounded <= rememberGroundedFor || additionalJumps > 0)) {
         rb.velocity = new Vector2(rb.velocity.x, jumpForce);
         additionalJumps--;
     }
 }

 void BetterJump() {
     if (rb.velocity.y < 0) {
         rb.velocity += Vector2.up * Physics2D.gravity * (fallMultiplier - 1) * Time.deltaTime;
     } else if (rb.velocity.y > 0 && !Input.GetKey(KeyCode.Space)) {
         rb.velocity += Vector2.up * Physics2D.gravity * (lowJumpMultiplier - 1) * Time.deltaTime;
     }   
 }

 void CheckIfGrounded() {
     Collider2D colliders = Physics2D.OverlapCircle(isGroundedChecker.position, checkGroundRadius, groundLayer);

     if (colliders != null) {
         isGrounded = true;
         additionalJumps = defaultAdditionalJumps;
     } else {
         if (isGrounded) {
             lastTimeGrounded = Time.time;
         }
         isGrounded = false;
     }
 }

}

Now, I have added a rigidbody 2d to my player as well as a capsule collider and I have added box colliders to all of the ground blocks. As soon as I hit Play the character will slide through these blocks and fall off the screen. I Googled this and found that changing the gravity scale can solve this issue so i changed my gravity scale to 0 from 1 and then suddenly I could move my character left to right (through no jump function), but now he moves through walls. Can anyone tell me what I am doing wrong? I have been researching and trying to find my answers, but I have been unable to figure this one out.

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