/* this method is adapted from http://www.jakecaspick.com/post/endlessroad/?fbclid=IwAR3z_UHz15fQohIkY6tSgBI6VLrnCgbXhqNJS6u6vl8Rl6A8P3y2pC-mDmQ
*/
public void GenerateMesh()
{
GetComponent <MeshFilter>().mesh = mesh = new Mesh();
vertices = new Vector3[(arcDivisions + 1) * (widthDivisions + 1)];
uv = new Vector2[vertices.Length];
float arcStep = angle / arcDivisions;
float widthStep = width / widthDivisions;
GameObject obj1 = new GameObject();
ArcPoint nextVertex = obj1.AddComponent <ArcPoint>();
nextVertex.Arcarcpoint(0, 0);
Vector2 nextUV = Vector2.zero;
if (!flipped)
{
for (int t = 0; t <= arcDivisions; t++)
{
for (int w = 0; w <= widthDivisions; w++)
{
nextVertex.Set(t * arcStep + startAngle, (w * widthStep - width / 2) + radius);
vertices[t * (widthDivisions + 1) + w] = ArcToLocal(nextVertex);
nextUV.Set((float)w / widthDivisions / textureScale, (float)t / arcDivisions * totalDistance / textureScale + uvOffset);
uv[t * (widthDivisions + 1) + w] = nextUV;
}
}
}
else
{
for (int t = 0; t <= arcDivisions; t++)
{
for (int w = 0; w <= widthDivisions; w++)
{
nextVertex.Set(t * arcStep + startAngle, (w * -widthStep + width / 2) + radius);
vertices[t * (widthDivisions + 1) + w] = ArcToLocal(nextVertex);
nextUV.Set((float)w / widthDivisions / textureScale, (float)t / arcDivisions * totalDistance / textureScale + uvOffset);
uv[t * (widthDivisions + 1) + w] = nextUV;
}
}
}
mesh.vertices = vertices;
mesh.uv = uv;
triangles = new int[arcDivisions * widthDivisions * 6];
for (int ti = 0, vi = 0, t = 0; t < arcDivisions; t++, vi++)
{
for (int w = 0; w < widthDivisions; w++, ti += 6, vi++)
{
triangles[ti] = vi;
triangles[ti + 3] = triangles[ti + 2] = vi + 1;
triangles[ti + 4] = triangles[ti + 1] = vi + widthDivisions + 1;
triangles[ti + 5] = vi + widthDivisions + 2;
mesh.triangles = triangles;
}
}
mesh.RecalculateNormals();
//Mesh collider needs to be added after creating mesh or else
// collider will be in the shape of the initial plane
gameObject.AddComponent <MeshCollider>();
gameObject.GetComponent <MeshCollider>().sharedMesh = mesh;
}
public void GenerateMesh()
{
GetComponent <MeshFilter>().mesh = mesh = new Mesh();
vertices = new Vector3[(arcDivisions + 1) * (widthDivisions + 1)];
uv = new Vector2[vertices.Length];
float arcStep = angle / arcDivisions;
float widthStep = width / widthDivisions;
ArcPoint nextVertex = new ArcPoint(0, 0);
Vector2 nextUV = Vector2.zero;
if (!flipped)
{
for (int t = 0; t <= arcDivisions; t++)
{
for (int w = 0; w <= widthDivisions; w++)
{
nextVertex.Set(t * arcStep + startAngle, (w * widthStep - width / 2) + radius);
vertices[t * (widthDivisions + 1) + w] = ArcToLocal(nextVertex);
nextUV.Set((float)w / widthDivisions / textureScale, (float)t / arcDivisions * totalDistance / textureScale + uvOffset);
uv[t * (widthDivisions + 1) + w] = nextUV;
}
}
}
else
{
for (int t = 0; t <= arcDivisions; t++)
{
for (int w = 0; w <= widthDivisions; w++)
{
nextVertex.Set(t * arcStep + startAngle, (w * -widthStep + width / 2) + radius);
vertices[t * (widthDivisions + 1) + w] = ArcToLocal(nextVertex);
nextUV.Set((float)w / widthDivisions / textureScale, (float)t / arcDivisions * totalDistance / textureScale + uvOffset);
uv[t * (widthDivisions + 1) + w] = nextUV;
}
}
}
mesh.vertices = vertices;
mesh.uv = uv;
triangles = new int[arcDivisions * widthDivisions * 6];
for (int ti = 0, vi = 0, t = 0; t < arcDivisions; t++, vi++)
{
for (int w = 0; w < widthDivisions; w++, ti += 6, vi++)
{
triangles[ti] = vi;
triangles[ti + 3] = triangles[ti + 2] = vi + 1;
triangles[ti + 4] = triangles[ti + 1] = vi + widthDivisions + 1;
triangles[ti + 5] = vi + widthDivisions + 2;
mesh.triangles = triangles;
}
}
mesh.RecalculateNormals();
}
