Initial commit: Client Doc docs Server Tools
Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
ud18010
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using System;
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using UnityEditor;
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using UnityEngine;
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public static class GroundCreate
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{
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//[MenuItem("GroundTools/GroundCreate")]
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/// <summary>
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/// 创建一个100x100单位的地表模型
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/// </summary>
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public static void CreateGround()
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{
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// 设置网格参数
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int width = 128;
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int length = 128;
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// 创建游戏对象
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GameObject ground = new GameObject($"Ground");
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// 添加网格过滤器和网格渲染器
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MeshFilter meshFilter = ground.AddComponent<MeshFilter>();
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MeshRenderer meshRenderer = ground.AddComponent<MeshRenderer>();
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UnityEngine.Random.InitState((int)DateTime.Now.Ticks);
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float randOffset = UnityEngine.Random.Range(0f, 100f);
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// 创建网格
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Mesh mesh = new Mesh();
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mesh.name = $"Ground_{width}X{length}_Mesh";
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float halfWidth = width * 0.5f;
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float halfLength = length * 0.5f;
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//创建一个随机高度图，并填入到顶点的y上
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float[,] heightMap = GenerateHeightMap(width, length);
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//for (int z = 0; z <= length; z++)
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//{
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// for (int x = 0; x <= width; x++)
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// {
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// heightMap[x, z] = Mathf.PerlinNoise(x * 0.1f, z * 0.1f) * 2f - 1f;
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// }
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//}
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// 创建顶点
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Vector3[] vertices = new Vector3[(width + 1) * (length + 1)];
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for (int z = 0; z <= length; z++)
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{
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for (int x = 0; x <= width; x++)
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{
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vertices[z * (width + 1) + x] = new Vector3(x - halfWidth, heightMap[x, z], z - halfLength);
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}
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}
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// 创建三角形
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int[] triangles = new int[width * length * 6];
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int triangleIndex = 0;
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for (int z = 0; z < length; z++)
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{
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for (int x = 0; x < width; x++)
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{
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int vertexIndex = z * (width + 1) + x;
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triangles[triangleIndex++] = vertexIndex;
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triangles[triangleIndex++] = vertexIndex + width + 1;
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triangles[triangleIndex++] = vertexIndex + 1;
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triangles[triangleIndex++] = vertexIndex + 1;
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triangles[triangleIndex++] = vertexIndex + width + 1;
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triangles[triangleIndex++] = vertexIndex + width + 2;
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}
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}
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// 创建UV坐标
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Vector2[] uvs = new Vector2[(width + 1) * (length + 1)];
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for (int z = 0; z <= length; z++)
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{
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for (int x = 0; x <= width; x++)
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{
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uvs[z * (width + 1) + x] = new Vector2((float)x / width, (float)z / length);
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}
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}
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// 设置网格数据
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mesh.vertices = vertices;
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mesh.triangles = triangles;
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mesh.uv = uvs;
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mesh.RecalculateNormals();
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mesh.RecalculateBounds();
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// 应用网格
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meshFilter.sharedMesh = mesh;
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// 添加碰撞器
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MeshCollider collider = ground.AddComponent<MeshCollider>();
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collider.sharedMesh = mesh;
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// 设置材质
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meshRenderer.material = new Material(Shader.Find("XWorld/XTerrain"));
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//设置_LayerTex0 _LayerTex1 _LayerTex2 _LayerTex3 和_Control贴图
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meshRenderer.material.SetTexture("_LayerTex0", AssetDatabase.LoadAssetAtPath<Texture2D>("Assets/Arts/scene/Terrain/Texture/grass.png"));
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meshRenderer.material.SetTexture("_LayerTex1", AssetDatabase.LoadAssetAtPath<Texture2D>("Assets/Arts/scene/Terrain/Texture/blick.png"));
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meshRenderer.material.SetTexture("_LayerTex2", AssetDatabase.LoadAssetAtPath<Texture2D>("Assets/Arts/scene/Terrain/Texture/mud.png"));
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meshRenderer.material.SetTexture("_LayerTex3", AssetDatabase.LoadAssetAtPath<Texture2D>("Assets/Arts/scene/Terrain/Texture/sand.png"));
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//生成一个rgba四通道的控制贴图，随机分配四种材质的混合度
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Texture2D controlTex = new Texture2D(width, length, TextureFormat.RGBA32, false);
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float PerlinRandom = 0.05f;
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for (int z = 0; z < length; z++)
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{
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for (int x = 0; x < width; x++)
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{
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//float h = heightMap[x, z];
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float h1 = Mathf.PerlinNoise(randOffset + z * PerlinRandom, randOffset + x * PerlinRandom);
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float hLerp;
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Color color;// = new Color(0, 0, 0, 0);
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if (h1 < 0.33f)
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{
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hLerp = (0.33f - h1)*3;
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color = new Color(0, 0, hLerp, 1 - hLerp);
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}
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else if (h1 < 0.66f)
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{
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hLerp = (0.66f - h1) * 3;
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color = new Color(0, hLerp, 1- hLerp, 0);
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}
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else
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{
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hLerp = (1.0f - h1) * 3;
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color = new Color(hLerp, 1 - hLerp, 0, 0);
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}
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controlTex.SetPixel(x, z, color);
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}
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}
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controlTex.Apply();
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meshRenderer.material.SetTexture("_Control", controlTex);
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// 注册撤销操作并选中对象
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Undo.RegisterCreatedObjectUndo(ground, "Create 100x100 Ground");
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Selection.activeGameObject = ground;
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}
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//生成x * z的高度图，增加一个浮动变化的高度和一个不均匀的高度变化
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//heightScale 高度缩放因子
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//heightOffset 高度偏移量
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public static float[,] GenerateHeightMap(int x, int z, float heightScale = 20f, float PerlinRandom = 0.01f)
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{
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float[,] heightMap = new float[x + 1, z + 1];
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UnityEngine.Random.InitState(Time.frameCount);
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Debug.Log("Random Seed: " + Time.frameCount);
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//生成一个N分之一宽和高的高度图
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int N = 16;
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int quarterX = x / N;
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int quarterZ = z / N;
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float[,] quarterHeightMap = new float[quarterX + 1, quarterZ + 1];
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for (int i = 0; i <= quarterX; i++)
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{
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for (int j = 0; j <= quarterZ; j++)
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{
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quarterHeightMap[i, j] = Mathf.PerlinNoise(i * 0.1f, j * 0.1f) * heightScale*2;
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}
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}
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//将四分之一高度图叠加到总的高度图上
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for (int i = 0; i <= x; i++)
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{
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for (int j = 0; j <= z; j++)
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{
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//heightMap[i, j] = Mathf.PerlinNoise(i * 0.1f, j * 0.1f) * heightScale + quarterHeightMap[i / N, j / N];
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//heightMap[i, j] = quarterHeightMap[i / N, j / N];
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float h1 = Mathf.PerlinNoise(i * PerlinRandom, j * PerlinRandom) * heightScale;
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float h2 = Mathf.PerlinNoise(i * PerlinRandom*5, j * PerlinRandom*5) * heightScale;
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heightMap[i, j] = h1 > h2? h1 : h2;
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}
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}
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return heightMap;
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}
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}
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