public static LineMeshData Combine(List <LineMeshData> meshData)
{
List <Vector3> vert = new List <Vector3> ();
List <Color> col = new List <Color> ();
List <int> ind = new List <int> ();
int offset = 0;
foreach (LineMeshData lmd in meshData)
{
vert.AddRange(lmd.vertices);
col.AddRange(lmd.colors);
for (int i = 0; i < lmd.indices.Length; i++)
{
ind.Add(lmd.indices [i] + offset);
}
offset += lmd.vertices.Length;
}
LineMeshData meshData_new = new LineMeshData();
meshData_new.vertices = vert.ToArray();
meshData_new.colors = col.ToArray();
meshData_new.indices = ind.ToArray();
return(meshData_new);
}
//ラインのエッジを作成
private LineMeshData CreateEdge(Vector3 from, Vector3 to, Color fromColor, Color toColor, float width, Vector3 normalVec)
{
Vector3 dir = (to - from).normalized;
Vector3 dirV = Vector3.Cross(dir, normalVec).normalized *width / 2.0f;
Vector3 scale = transform.lossyScale;
Vector3 scale_inv = new Vector3(1.0f / scale.x, 1.0f / scale.y, 1.0f / scale.z);
dirV.Scale(scale_inv);
Vector3[] vertices = new Vector3[4];
vertices [0] = from - dirV;
vertices [1] = from + dirV;
vertices [2] = to + dirV;
vertices [3] = to - dirV;
Color[] colors = new Color[4];
colors [0] = fromColor;
colors [1] = fromColor;
colors [2] = toColor;
colors [3] = toColor;
int[] indices = new int[6];
indices [0] = 0; indices [1] = 1; indices [2] = 2;
indices [3] = 2; indices [4] = 3; indices [5] = 0;
LineMeshData lmd = new LineMeshData();
lmd.vertices = vertices;
lmd.colors = colors;
lmd.indices = indices;
return(lmd);
}
//ラインの頂点を作成
private LineMeshData CreateVertex(Vector3 pos, Color color, float size, Vector3 normalVec)
{
Vector3 dir = Vector3.right;
Vector3 dirV = dir.normalized * size / 2.0f;
Vector3 dirH = Vector3.Cross(dir, normalVec).normalized *size / 2.0f;
Vector3 scale = transform.lossyScale;
Vector3 scale_inv = new Vector3(1.0f / scale.x, 1.0f / scale.y, 1.0f / scale.z);
dirV.Scale(scale_inv);
dirH.Scale(scale_inv);
Vector3[] vertices = new Vector3[4];
vertices [0] = pos - dirV - dirH;
vertices [1] = pos - dirV + dirH;
vertices [2] = pos + dirV + dirH;
vertices [3] = pos + dirV - dirH;
Color[] colors = new Color[4];
colors [0] = color;
colors [1] = color;
colors [2] = color;
colors [3] = color;
int[] indices = new int[6];
indices [0] = 0; indices [1] = 1; indices [2] = 2;
indices [3] = 2; indices [4] = 3; indices [5] = 0;
LineMeshData lmd = new LineMeshData();
lmd.vertices = vertices;
lmd.colors = colors;
lmd.indices = indices;
return(lmd);
}
void Update()
{
LineMeshData lmd = CreateLines();
Mesh m = GetComponent <MeshFilter> ().mesh;
m.Clear();
m.vertices = lmd.vertices;
m.colors = lmd.colors;
m.SetIndices(lmd.indices, MeshTopology.Triangles, 0);
}
//複数のラインを作成
private LineMeshData CreateLines()
{
if (meshs == null)
{
return(new LineMeshData());
}
List <LineMeshData> meshList = new List <LineMeshData> ();
foreach (LineMesh lm in meshs)
{
meshList.Add(CreateLine(lm));
}
return(LineMeshData.Combine(meshList));
}
//ラインを作成
private LineMeshData CreateLine(LineMesh lm)
{
Vector3[] vert = lm.vertices;
Color[] colorE = lm.colorOfEdge;
Color[] colorV = lm.colorOfVertex;
int[] ind = lm.indices;
//ちゃんと正しくデータが入っているかチェック
if (vert == null)
{
return(new LineMeshData());
}
int count = vert.Length;
if (count == 0)
{
return(new LineMeshData());
}
bool isCorrectContents = true;
if (colorE != null)
{
isCorrectContents &= vert.Length == colorE.Length;
}
else
{
colorE = new Color[count];
for (int i = 0; i < count; i++)
{
colorE [i] = DefaultColor;
}
}
if (colorV != null)
{
isCorrectContents &= vert.Length == colorV.Length;
}
else
{
colorV = new Color[count];
for (int i = 0; i < count; i++)
{
colorV [i] = DefaultColor;
}
}
if (!isCorrectContents)
{
Debug.Assert(false, "ラインデータが異常です");
return(new LineMeshData());
}
//メッシュを作成する
// エッジメッシュを作成
List <LineMeshData> meshList = new List <LineMeshData> ();
for (int i = 0; i < ind.Length; i += 2)
{
int i0 = ind [i];
int i1 = ind [i + 1];
meshList.Add(CreateEdge(vert [i0], vert [i1], colorE[i0], colorE[i1], lm.width, lm.normalVector));
}
// バーテックスメッシュを作成
for (int i = 0; i < vert.Length; i++)
{
meshList.Add(CreateVertex(vert[i], colorV[i], lm.vertexSize, lm.normalVector));
}
// メッシュを統合
return(LineMeshData.Combine(meshList));
}
