Moving vertices of a mesh by vertexcolor

Hello i am new in Unity Scripting
, i need help in a basic script to move some vertices of a imported mesh depending on their vertex color. For example moving the vertices which have rgb(0,0,0) and rgb(1,0,0) color in Y direction by 1cm. I started with the basic script from the documentation, but this code moves all vertices left. I tryed putting an if statment but it doesn works. Thanks!

Code (CSharp):

1.  Mesh mesh;
2.     Vector3[] vertices;
3.     Color[] colors;
4.     void Start()
5.     {
6.         mesh = GetComponent<MeshFilter>().mesh;
7.         vertices = mesh.vertices;
8.         colors = mesh.colors;
9.     }
10.  
11.     void Update()
12.     {
13.         for (var i = 0; i < vertices.Length; i++)
14.         {
15.             if (colors[i] = (0,0,0,0))
16.             {
17.             vertices[i] += Vector3.right * Time.deltaTime;
18.             }
19.          
20.        
21.         }
22.  
23.         // assign the local vertices array into the vertices array of the Mesh.
24.         mesh.vertices = vertices;
25.         mesh.RecalculateBounds();
26.     }

 

It seems to me all vertices colors in your mesh equals (0,0,0,0)

 

No , the are not. The are (0,0,0,0) , (1,0,0,0) ,(2,0,0,0).... and so on.

 

ok ifoun the solution

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class TransformAjtolap : MonoBehaviour
6. {
7.  
8.    
9.     Mesh mesh;
10.     Vector3[] vertices;
11.     Color32[] colors;
12.     void Start()
13.     {
14.         mesh = GetComponent<MeshFilter>().mesh;
15.         vertices = mesh.vertices;
16.         colors = mesh.colors32;
17.        
18.     }
19.  
20.     void Update()
21.     {
22.         for (var i = 0; i < vertices.Length; i++)
23.         {
24.             if (colors[i].r == 0)
25.             {
26.             vertices[i] += Vector3.left * Time.deltaTime;
27.                
28.             }
29.            
30.        
31.         }
32.  
33.         // assign the local vertices array into the vertices array of the Mesh.
34.         mesh.vertices = vertices;
35.         mesh.RecalculateBounds();
36.     }
37. }

 

Lol I missed a typo in your code and that was the error. Replace

Code (CSharp):

1. if (colors[i] = (0,0,0,0))

with

Code (CSharp):

1. if (colors[i] == (0,0,0,0))

and it will work too.

Single = is assignment operator, not comparsion
Double == is comparsion