/// <summary>
/// 与SetMesh显示面相反
/// </summary>
public void SetMesh2(float v2Len, float height, GameObject body, float offsetX = 0, float offsetY = 0, float angle = 0, float tileSize_x = 1, float tileSize_y = 1)
{
List <Vector2> v2s = new List <Vector2>();
v2s.Add(Vector2.zero);
v2s.Add(Vector2.up * height);
v2s.Add(Vector2.right * v2Len + Vector2.up * height);
v2s.Add(Vector2.right * v2Len);
List <Vector3> vertices = new List <Vector3>();
List <Vector2> uvs = new List <Vector2>();
for (int i = 0; i < v2s.Count; i++)
{
vertices.Add(v2s[i]);
}
List <List <Vector2> > closelist;
int[] triangles = MyTriangleSubdivision.MyTriangulatePolygon(v2s, ref vertices, ref uvs, out closelist, true);
float Angle = angle * Mathf.PI / 180f;
for (int i = 0; i < uvs.Count; i++)
{
float x = uvs[i].x;
float y = uvs[i].y;
Vector2 newV2 = Vector2.zero;
//纹理 的缩放旋转平移
newV2.x = tileSize_x * (x * Mathf.Cos(Angle) - y * Mathf.Sin(Angle) + offsetX);
newV2.y = tileSize_y * (x * Mathf.Sin(Angle) + y * Mathf.Cos(Angle) + offsetY);
uvs[i] = newV2;
}
Mesh mesh = body.GetComponent <MeshFilter>().mesh;
mesh.SetTriangles(EmtyArr, 0);
mesh.SetVertices(vertices);
mesh.SetUVs(0, uvs);
OtherSide(triangles);
mesh.SetTriangles(triangles, 0);
//mesh.triangles = triangles;
mesh.RecalculateNormals();
mesh.RecalculateBounds();
BoxCollider colli = body.GetComponent <BoxCollider>();
if (colli != null)
{
colli.center = Vector3.right * v2Len / 2 + Vector3.up * height / 2;
colli.size = Vector3.right * v2Len + Vector3.up * height;
}
}
public List <List <Vector2> > SetMesh(List <Vector2> v2s, GameObject wallbody, float offsetX = 0, float offsetY = 0, float angle = 0, float tileSize_x = 1, float tileSize_y = 1, bool useCross = false)
{
List <Vector3> vertices = new List <Vector3>();
List <Vector2> uvs = new List <Vector2>();
for (int i = 0; i < v2s.Count; i++)
{
vertices.Add(v2s[i]);
}
List <List <Vector2> > closelist;
int[] triangles = MyTriangleSubdivision.MyTriangulatePolygon(v2s, ref vertices, ref uvs, out closelist, useCross);//TriangleSubdivision.TriangulatePolygon(v2s);
if (triangles == null)
{
Debug.LogWarning("triangles == null 不是简单多边形");
}
float Angle = angle * Mathf.PI / 180f;
for (int i = 0; i < uvs.Count; i++)
{
float x = uvs[i].x;
float y = uvs[i].y;
Vector2 newV2 = Vector2.zero;
newV2.x = tileSize_x * (x * Mathf.Cos(Angle) - y * Mathf.Sin(Angle) + offsetX);
newV2.y = tileSize_y * (x * Mathf.Sin(Angle) + y * Mathf.Cos(Angle) + offsetY);
uvs[i] = newV2;
}
Mesh mesh = wallbody.GetComponent <MeshFilter>().mesh;
mesh.SetTriangles(EmtyArr, 0);
mesh.SetVertices(vertices);
mesh.SetUVs(0, uvs);
mesh.SetTriangles(triangles, 0);
//mesh.triangles = triangles;
mesh.RecalculateNormals();
mesh.RecalculateBounds();
PolygonCollider2D polygon = wallbody.GetComponent <PolygonCollider2D>();
if (polygon != null)
{
polygon.SetPath(0, v2s.ToArray());
}
return(closelist);
}
public void SetMesh3D(List <Vector2> v2s, GameObject gameObject, float offsetX = 0, float offsetY = 0, float angle = 0, float tileSize_x = 1, float tileSize_y = 1, bool useCross = false, bool isFloor = true)
{
List <Vector3> vertices = new List <Vector3>();
List <Vector2> uvs = new List <Vector2>();
for (int i = 0; i < v2s.Count; i++)
{
vertices.Add(v2s[i]);
}
List <List <Vector2> > closelist;
int[] triangles = MyTriangleSubdivision.MyTriangulatePolygon(v2s, ref vertices, ref uvs, out closelist, true);//TriangleSubdivision.TriangulatePolygon(v2s);
if (triangles == null)
{
Debug.LogWarning("triangles == null 不是简单多边形");
}
float Angle = angle * Mathf.PI / 180f;
for (int i = 0; i < uvs.Count; i++)
{
float x = uvs[i].x;
float y = uvs[i].y;
Vector2 newV2 = Vector2.zero;
newV2.x = tileSize_x * (x * Mathf.Cos(Angle) - y * Mathf.Sin(Angle) + offsetX);
newV2.y = tileSize_y * (x * Mathf.Sin(Angle) + y * Mathf.Cos(Angle) + offsetY);
uvs[i] = newV2;
}
if (isFloor == false)
{
intlist.Clear();
for (int i = 0; i < triangles.Length; i++)
{
intlist.Add(triangles[triangles.Length - 1 - i]);
}
for (int i = 0; i < intlist.Count; i++)
{
triangles[i] = intlist[i];
}
}
for (int i = 0; i < vertices.Count; i++)
{
vertices[i] = Vector3.right * vertices[i].x + Vector3.forward * vertices[i].y;
}
Mesh mesh = gameObject.GetComponent <MeshFilter>().mesh;
mesh.SetTriangles(EmtyArr, 0);
mesh.SetVertices(vertices);
mesh.SetUVs(0, uvs);
mesh.SetTriangles(triangles, 0);
//mesh.triangles = triangles;
mesh.RecalculateNormals();
mesh.RecalculateBounds();
MeshCollider meshColli = gameObject.GetComponentInChildren <MeshCollider>();
if (meshColli != null)
{
Mesh newMesh = new Mesh();
newMesh.SetTriangles(EmtyArr, 0);
newMesh.SetVertices(vertices);
newMesh.SetUVs(0, uvs);
newMesh.SetTriangles(triangles, 0);
newMesh.RecalculateNormals();
newMesh.RecalculateBounds();
meshColli.sharedMesh = newMesh;
}
}