IEnumerator MeshRefreshCoroutine()
{
_isGeneratingMesh = true;
++_generatingMeshTaskCount;
_meshRenderer.enabled = false;
physicsReady = false;
_vertices.Clear();
_normals.Clear();
_uvs.Clear();
_triangles.Clear();
for (var x = 0; x < _blockContainer.ContainerSize.x; ++x)
{
for (var y = 0; y < _blockContainer.ContainerSize.y; ++y)
{
for (var z = 0; z < _blockContainer.ContainerSize.z; ++z)
{
var blockData = _blockContainer.GetBlockData(x, y, z);
var needDraw = !blockData.IsAlpha && (
_blockContainer.GetBlockData(x, y + 1, z).IsAlpha ||
_blockContainer.GetBlockData(x, y - 1, z).IsAlpha ||
_blockContainer.GetBlockData(x + 1, y, z).IsAlpha ||
_blockContainer.GetBlockData(x - 1, y, z).IsAlpha ||
_blockContainer.GetBlockData(x, y, z + 1).IsAlpha ||
_blockContainer.GetBlockData(x, y, z - 1).IsAlpha);
if (!needDraw)
{
continue;
}
var triangleStartPos = _vertices.Count;
if (_blockContainer.GetBlockData(x, y + 1, z).IsAlpha)
{
//上面
_vertices.Add(ScaleByBlockSize(new Vector3(x + 1, y, z)));
_vertices.Add(ScaleByBlockSize(new Vector3(x, y, z)));
_vertices.Add(ScaleByBlockSize(new Vector3(x, y, z + 1)));
_vertices.Add(ScaleByBlockSize(new Vector3(x + 1, y, z + 1)));
_normals.Add(Vector3.up);
_normals.Add(Vector3.up);
_normals.Add(Vector3.up);
_normals.Add(Vector3.up);
var textureUp = blockData.GetFaceTexture(Face.Up);
_uvs.Add(new Vector2(textureUp.right, textureUp.top));
_uvs.Add(new Vector2(textureUp.left, textureUp.top));
_uvs.Add(new Vector2(textureUp.left, textureUp.bottom));
_uvs.Add(new Vector2(textureUp.right, textureUp.bottom));
_triangles.Add(triangleStartPos + 0);
_triangles.Add(triangleStartPos + 1);
_triangles.Add(triangleStartPos + 2);
_triangles.Add(triangleStartPos + 2);
_triangles.Add(triangleStartPos + 3);
_triangles.Add(triangleStartPos + 0);
triangleStartPos += 4;
}
if (_blockContainer.GetBlockData(x, y - 1, z).IsAlpha)
{
//下面
_vertices.Add(ScaleByBlockSize(new Vector3(x + 1, y - 1, z)));
_vertices.Add(ScaleByBlockSize(new Vector3(x, y - 1, z)));
_vertices.Add(ScaleByBlockSize(new Vector3(x, y - 1, z + 1)));
_vertices.Add(ScaleByBlockSize(new Vector3(x + 1, y - 1, z + 1)));
_normals.Add(Vector3.down);
_normals.Add(Vector3.down);
_normals.Add(Vector3.down);
_normals.Add(Vector3.down);
var textureDown = blockData.GetFaceTexture(Face.Down);
_uvs.Add(new Vector2(textureDown.right, textureDown.top));
_uvs.Add(new Vector2(textureDown.left, textureDown.top));
_uvs.Add(new Vector2(textureDown.left, textureDown.bottom));
_uvs.Add(new Vector2(textureDown.right, textureDown.bottom));
_triangles.Add(triangleStartPos + 2);
_triangles.Add(triangleStartPos + 1);
_triangles.Add(triangleStartPos + 0);
_triangles.Add(triangleStartPos + 0);
_triangles.Add(triangleStartPos + 3);
_triangles.Add(triangleStartPos + 2);
triangleStartPos += 4;
}
if (_blockContainer.GetBlockData(x, y, z + 1).IsAlpha)
{
//前面
_vertices.Add(ScaleByBlockSize(new Vector3(x + 1, y - 1, z + 1)));
_vertices.Add(ScaleByBlockSize(new Vector3(x, y - 1, z + 1)));
_vertices.Add(ScaleByBlockSize(new Vector3(x, y, z + 1)));
_vertices.Add(ScaleByBlockSize(new Vector3(x + 1, y, z + 1)));
_normals.Add(Vector3.forward);
_normals.Add(Vector3.forward);
_normals.Add(Vector3.forward);
_normals.Add(Vector3.forward);
var textureBack = blockData.GetFaceTexture(Face.Forward);
_uvs.Add(new Vector2(textureBack.right, textureBack.top));
_uvs.Add(new Vector2(textureBack.left, textureBack.top));
_uvs.Add(new Vector2(textureBack.left, textureBack.bottom));
_uvs.Add(new Vector2(textureBack.right, textureBack.bottom));
_triangles.Add(triangleStartPos + 2);
_triangles.Add(triangleStartPos + 1);
_triangles.Add(triangleStartPos + 0);
_triangles.Add(triangleStartPos + 0);
_triangles.Add(triangleStartPos + 3);
_triangles.Add(triangleStartPos + 2);
triangleStartPos += 4;
}
if (_blockContainer.GetBlockData(x, y, z - 1).IsAlpha)
{
//后面
_vertices.Add(ScaleByBlockSize(new Vector3(x + 1, y - 1, z)));
_vertices.Add(ScaleByBlockSize(new Vector3(x, y - 1, z)));
_vertices.Add(ScaleByBlockSize(new Vector3(x, y, z)));
_vertices.Add(ScaleByBlockSize(new Vector3(x + 1, y, z)));
_normals.Add(Vector3.back);
_normals.Add(Vector3.back);
_normals.Add(Vector3.back);
_normals.Add(Vector3.back);
var textureForward = blockData.GetFaceTexture(Face.Back);
_uvs.Add(new Vector2(textureForward.right, textureForward.top));
_uvs.Add(new Vector2(textureForward.left, textureForward.top));
_uvs.Add(new Vector2(textureForward.left, textureForward.bottom));
_uvs.Add(new Vector2(textureForward.right, textureForward.bottom));
_triangles.Add(triangleStartPos + 0);
_triangles.Add(triangleStartPos + 1);
_triangles.Add(triangleStartPos + 2);
_triangles.Add(triangleStartPos + 2);
_triangles.Add(triangleStartPos + 3);
_triangles.Add(triangleStartPos + 0);
triangleStartPos += 4;
}
if (_blockContainer.GetBlockData(x - 1, y, z).IsAlpha)
{
//左面
_vertices.Add(ScaleByBlockSize(new Vector3(x, y - 1, z + 1)));
_vertices.Add(ScaleByBlockSize(new Vector3(x, y - 1, z)));
_vertices.Add(ScaleByBlockSize(new Vector3(x, y, z)));
_vertices.Add(ScaleByBlockSize(new Vector3(x, y, z + 1)));
_normals.Add(Vector3.left);
_normals.Add(Vector3.left);
_normals.Add(Vector3.left);
_normals.Add(Vector3.left);
var textureLeft = blockData.GetFaceTexture(Face.Left);
_uvs.Add(new Vector2(textureLeft.right, textureLeft.top));
_uvs.Add(new Vector2(textureLeft.left, textureLeft.top));
_uvs.Add(new Vector2(textureLeft.left, textureLeft.bottom));
_uvs.Add(new Vector2(textureLeft.right, textureLeft.bottom));
_triangles.Add(triangleStartPos + 2);
_triangles.Add(triangleStartPos + 1);
_triangles.Add(triangleStartPos + 0);
_triangles.Add(triangleStartPos + 0);
_triangles.Add(triangleStartPos + 3);
_triangles.Add(triangleStartPos + 2);
triangleStartPos += 4;
}
if (_blockContainer.GetBlockData(x + 1, y, z).IsAlpha)
{
//右面
_vertices.Add(ScaleByBlockSize(new Vector3(x + 1, y - 1, z + 1)));
_vertices.Add(ScaleByBlockSize(new Vector3(x + 1, y - 1, z)));
_vertices.Add(ScaleByBlockSize(new Vector3(x + 1, y, z)));
_vertices.Add(ScaleByBlockSize(new Vector3(x + 1, y, z + 1)));
_normals.Add(Vector3.right);
_normals.Add(Vector3.right);
_normals.Add(Vector3.right);
_normals.Add(Vector3.right);
var textureRight = blockData.GetFaceTexture(Face.Right);
_uvs.Add(new Vector2(textureRight.right, textureRight.top));
_uvs.Add(new Vector2(textureRight.left, textureRight.top));
_uvs.Add(new Vector2(textureRight.left, textureRight.bottom));
_uvs.Add(new Vector2(textureRight.right, textureRight.bottom));
_triangles.Add(triangleStartPos + 0);
_triangles.Add(triangleStartPos + 1);
_triangles.Add(triangleStartPos + 2);
_triangles.Add(triangleStartPos + 2);
_triangles.Add(triangleStartPos + 3);
_triangles.Add(triangleStartPos + 0);
}
}
}
yield return(1);
}
_mesh.Clear(false);
yield return(1);
_mesh.SetVertices(_vertices);
_mesh.SetTriangles(_triangles, 0);
_mesh.SetNormals(_normals);
_mesh.SetUVs(0, _uvs);
yield return(1);
_meshFilter.mesh = _mesh;
yield return(1);
if (_meshCollider == null)
{
_meshCollider = GetComponent <MeshCollider>();
}
_meshCollider.cookingOptions = MeshColliderCookingOptions.None;
if (_meshCollider != null)
{
_meshCollider.sharedMesh = _mesh;
}
_meshRenderer.enabled = true;
--_generatingMeshTaskCount;
_isGeneratingMesh = false;
physicsReady = true;
}