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using System.Collections; using System.Collections.Generic; using UnityEngine; //[ExecuteInEditMode] public class CreateCircleMesh : MonoBehaviour { [Range(1,10)] public int ringWidth=1; public int CircleSegments=10; [Range(0.1f,100)] public float circleRadius=3; private Mesh circleMesh; private Vector3[] vertices; private int[] triangles; private Vector2[] uvs; private void Awake() { createCircle(CircleSegments,ringWidth,circleRadius); } void Update () { } void createCircle(int segments, float width, float radius) { circleMesh = GetComponent<MeshFilter>().mesh; vertices = new Vector3[(segments*2)+2]; triangles = new int[segments*6]; float angle = 360 /segments; int v = 0; int t = 0; for (int i = 0; i < segments+1; i++) { vertices[i] = new Vector3(0+radius*Mathf.Cos((angle*Mathf.PI / 360)),0, 0 + radius * Mathf.Sin((angle * Mathf.PI / 360))); } for (int j = 0; j < segments+1; j++) { vertices[j+segments] = new Vector3(0 + (radius + width) * Mathf.Cos((angle * Mathf.PI / 360)), 0, 0 + (radius+width) * Mathf.Sin((angle * Mathf.PI / 360))); } for (int k = 0; k < (triangles.Length); k+=6) { triangles[k] = k; triangles[k + 1] = k + 1; triangles[k + 2] = k + segments; //if (k<triangles.Length -6) { triangles[k + 3] = k + 1; triangles[k + 4] = k + segments + 1; triangles[k + 5] = k + segments; // } // else // { // triangles[k+3] = // } } circleMesh.vertices = vertices; circleMesh.triangles = triangles; } } |