issue attaching scripts to gameobjects.

i have two scripts that i found online. one is a physics object and the other is a player platform controller. when i try to add the physics object to a game object its fine. when i try to add the platform controller it gives me this error


Physics Object

Code (csharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5.  
6. public class PhysicsObject : MonoBehaviour
7. {
8.  
9.     public float minGroundNormalY = .65f;
10.     public float gravityModifier = 1f;
11.  
12.     protected Vector2 targetVelocity;
13.     protected bool grounded;
14.     protected Vector2 groundNormal;
15.     protected Rigidbody2D rb2d;
16.     protected Vector2 velocity;
17.     protected ContactFilter2D contactFilter;
18.     protected RaycastHit2D[] hitBuffer = new RaycastHit2D[16];
19.     protected List<RaycastHit2D> hitBufferList = new List<RaycastHit2D>(16);
20.  
21.  
22.     protected const float minMoveDistance = 0.001f;
23.     protected const float shellRadius = 0.01f;
24.  
25.     void OnEnable()
26.     {
27.  
28.         rb2d = GetComponent<Rigidbody2D>();
29.     }
30.  
31.     void Start()
32.     {
33.         contactFilter.useTriggers = false;
34.         contactFilter.SetLayerMask(Physics2D.GetLayerCollisionMask(gameObject.layer));
35.         contactFilter.useLayerMask = true;
36.     }
37.  
38.     void Update()
39.     {
40.         targetVelocity = Vector2.zero;
41.         ComputeVelocity();
42.     }
43.  
44.     protected virtual void ComputeVelocity()
45.     {
46.  
47.     }
48.  
49.     void FixedUpdate()
50.     {
51.         velocity += gravityModifier * Physics2D.gravity * Time.deltaTime;
52.         velocity.x = targetVelocity.x;
53.  
54.         grounded = false;
55.  
56.         Vector2 deltaPosition = velocity * Time.deltaTime;
57.  
58.         Vector2 moveAlongGround = new Vector2(groundNormal.y, -groundNormal.x);
59.  
60.         Vector2 move = moveAlongGround * deltaPosition.x;
61.  
62.         Movement(move, false);
63.  
64.         move = Vector2.up * deltaPosition.y;
65.  
66.         Movement(move, true);
67.     }
68.  
69.     void Movement(Vector2 move, bool yMovement)
70.     {
71.         float distance = move.magnitude;
72.  
73.         if (distance > minMoveDistance)
74.         {
75.             int count = rb2d.Cast(move, contactFilter, hitBuffer, distance + shellRadius);
76.             hitBufferList.Clear();
77.             for (int i = 0; i < count; i++)
78.             {
79.                 hitBufferList.Add(hitBuffer[i]);
80.             }
81.  
82.             for (int i = 0; i < hitBufferList.Count; i++)
83.             {
84.                 Vector2 currentNormal = hitBufferList[i].normal;
85.                 if (currentNormal.y > minGroundNormalY)
86.                 {
87.                     grounded = true;
88.                     if (yMovement)
89.                     {
90.                         groundNormal = currentNormal;
91.                         currentNormal.x = 0;
92.                     }
93.                 }
94.  
95.                 float projection = Vector2.Dot(velocity, currentNormal);
96.                 if (projection < 0)
97.                 {
98.                     velocity = velocity - projection * currentNormal;
99.                 }
100.  
101.                 float modifiedDistance = hitBufferList[i].distance - shellRadius;
102.                 distance = modifiedDistance < distance ? modifiedDistance : distance;
103.             }
104.  
105.  
106.         }
107.  
108.         rb2d.position = rb2d.position + move.normalized * distance;
109.     }
110.  
111. }
112.  

Platform Controller

Code (csharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5.  
6. public class PlayerPlatformerController : PhysicsObject
7. {
8.  
9.     public float maxSpeed = 7;
10.     public float jumpTakeOffSpeed = 7;
11.  
12.     private SpriteRenderer spriteRenderer;
13.     private Animator animator;
14.  
15.     // Use this for initialization
16.     void Awake()
17.     {
18.         spriteRenderer = GetComponent<SpriteRenderer>();
19.         animator = GetComponent<Animator>();
20.     }
21.  
22.     protected override void ComputeVelocity()
23.     {
24.         Vector2 move = Vector2.zero;
25.  
26.         move.x = Input.GetAxis("Horizontal");
27.  
28.         if (Input.GetButtonDown("Jump") && grounded)
29.         {
30.             velocity.y = jumpTakeOffSpeed;
31.         }
32.         else if (Input.GetButtonUp("Jump"))
33.         {
34.             if (velocity.y > 0)
35.             {
36.                 velocity.y = velocity.y * 0.5f;
37.             }
38.         }
39.  
40.         bool flipSprite = (spriteRenderer.flipX ? (move.x > 0.01f) : (move.x < 0.01f));
41.         if (flipSprite)
42.         {
43.             spriteRenderer.flipX = !spriteRenderer.flipX;
44.         }
45.  
46.         animator.SetBool("grounded", grounded);
47.         animator.SetFloat("velocityX", Mathf.Abs(velocity.x) / maxSpeed);
48.  
49.         targetVelocity = move * maxSpeed;
50.     }
51. }
52.  

 

Double check the filename. It has to match the code. PlayerPlatformerController vs PlayerPlatformController

 

that was it. im litteraly blind lol. i thought it was an issue with the class being "PhysicsObject"

 

How to use your scripts to make UI buttons to move left , right and jump???

 

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