72 lines
1.8 KiB
C#
72 lines
1.8 KiB
C#
using System.Collections.Generic;
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using UnityEngine;
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[RequireComponent(typeof(MeshFilter), typeof(MeshRenderer))]
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public class HexMesh : MonoBehaviour
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{
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Mesh hexMesh;
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List<Vector3> vertices;
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List<int> triangles;
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List<Color> colors;
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MeshCollider meshCollider;
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void Awake()
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{
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meshCollider = gameObject.AddComponent<MeshCollider>();
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GetComponent<MeshFilter>().mesh = hexMesh = new Mesh();
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hexMesh.name = "Hex Mesh";
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vertices = new List<Vector3>();
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triangles = new List<int>();
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colors = new List<Color>();
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}
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public void Triangulate(HexCell[] cells)
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{
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hexMesh.Clear();
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vertices.Clear();
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triangles.Clear();
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colors.Clear();
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for (int i = 0; i < cells.Length; i++)
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{
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Triangulate(cells[i]);
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}
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hexMesh.vertices = vertices.ToArray();
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hexMesh.colors = colors.ToArray();
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hexMesh.triangles = triangles.ToArray();
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hexMesh.RecalculateNormals();
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meshCollider.sharedMesh = hexMesh;
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}
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void AddTriangle(Vector3 v1, Vector3 v2, Vector3 v3)
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{
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int vertexIndex = vertices.Count;
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vertices.Add(v1);
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vertices.Add(v2);
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vertices.Add(v3);
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triangles.Add(vertexIndex);
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triangles.Add(vertexIndex + 1);
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triangles.Add(vertexIndex + 2);
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}
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void AddTriangleColor(Color color)
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{
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colors.Add(color);
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colors.Add(color);
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colors.Add(color);
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}
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void Triangulate(HexCell cell)
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{
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Vector3 center = cell.transform.localPosition;
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for (int i = 0; i < 6; i++)
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{
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AddTriangle(
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center,
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center + HexMetrics.corners[i],
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center + HexMetrics.corners[i + 1]
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);
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AddTriangleColor(cell.color);
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}
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}
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} |