SpaceCraft/SpaceCraft.Unity/Assets/_Project/Scripts/Game/PlaneGenerator.cs

using UnityEngine;

public class PlaneGenerator : MonoBehaviour
{
    private const int pqsResolution = 16;

    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        var vertices = new Vector3[(pqsResolution + 1) * (pqsResolution + 1)];
        Vector2[] uv = new Vector2[(pqsResolution + 1) * (pqsResolution + 1)];
        var triangles = new int[(pqsResolution) * (pqsResolution) * 6];

        for (int x = 0, vertex = 0; x < pqsResolution + 1; x++)
        {
            for (int z = 0; z < pqsResolution + 1; z++, vertex++)
            {
                vertices[vertex] = new Vector3(x, 0, z);
                uv[vertex] = new Vector2((float)x / pqsResolution, (float)z / pqsResolution);
            }
        }

        int triangle = 0;
        for (int x = 1, vertex = 0; x < pqsResolution + 1; x++, vertex++)
        {
            for (int z = 1; z < pqsResolution + 1; z++, vertex++)
            {
                triangles[triangle] = vertex;
                triangles[triangle + 1] = vertex + pqsResolution + 2;
                triangles[triangle + 2] = vertex + pqsResolution + 1;

                triangles[triangle + 3] = vertex;
                triangles[triangle + 4] = vertex + 1;
                triangles[triangle + 5] = vertex + pqsResolution + 2;

                triangle += 6;
            }
        }

        var mesh = GetComponent<MeshFilter>();
        mesh.mesh.vertices = vertices;
        mesh.mesh.triangles = triangles;
        mesh.mesh.uv = uv;

        GetComponent<MeshCollider>().sharedMesh = mesh.mesh;
        mesh.mesh.RecalculateBounds();
        mesh.mesh.RecalculateNormals();
    }

    // Update is called once per frame
    void Update()
    {
        
    }
}