void Start()
{
createMesh = GetComponent <MeshCreator> ();
//add and clear a new meshFilter to the object
MeshFilter filter = gameObject.AddComponent <MeshFilter>();
mesh = filter.mesh;
mesh.Clear();
//add the four vertices in the position 1 and the four vertices in the position 2
AddStartingPositions(positions[1].position);
AddEndingPositions(positions[0].position);
//createMesh will return the organized array of vertices and triangles for the first cube, which is stored in vertList and triangleList
vertList.AddRange(createMesh.ArrangeVerticesForCube(newVertices));
trianglesList.AddRange(createMesh.ArrangeTrianglesForCube(trianglesList.Count));
//now add to the ending positions of newVertices the four vertices of position 2
AddEndingPositions(positions[2].position);
//now vertList and triangleList will receive the organized array of vertices and triangles between positions 1 and 2
vertList.AddRange(createMesh.ArrangeVerticesForCube(newVertices));
trianglesList.AddRange(createMesh.ArrangeTrianglesForCube(trianglesList.Count));
//now add to the beggining positions of newVertices the four vertices of position 3
AddStartingPositions(positions[3].position);
//now vertList and triangleList will receive the organized array of vertices and triangles between positions 2 and 3
vertList.AddRange(createMesh.ArrangeVerticesForCube(newVertices));
trianglesList.AddRange(createMesh.ArrangeTrianglesForCube(trianglesList.Count));
//now add to the mesh the list of vertices and triangles, which will result in the extruded mesh between all 4 points
mesh.vertices = vertList.ToArray();;
mesh.triangles = trianglesList.ToArray();
mesh.RecalculateBounds();
;
}
//This method will create the new mesh and attach it to the original mesh
void CreateNewMesh()
{
List <Vector3> endPosVerts = new List <Vector3> ();
//add the original vertices found on the mesh to the endPosVerts list
endPosVerts.AddRange(vertPos);
//each cube, which are the vertices, will be moved to the desired extrude position and here I get the positions of each of them
foreach (GameObject cube in vertCubes)
{
endPosVerts.Add(cube.transform.position);
Destroy(cube);
}
//finalVertArray will receive the ordered array of new vertices to be added to the mesh
Vector3[] finalVertArray = meshCreate.ArrangeVerticesForCube(endPosVerts.ToArray());
//change all new vertices to local space which fixes the positioning
for (int i = 0; i < finalVertArray.Length; i++)
{
finalVertArray[i] = hitTransform.InverseTransformPoint(finalVertArray[i]);
}
//add the mesh verts and the new vertices to a list, then add it to the mesh
endPosVerts.Clear();
endPosVerts.AddRange(mesh.vertices);
endPosVerts.AddRange(finalVertArray);
mesh.vertices = endPosVerts.ToArray();
//calculate the new triangles and add them to the mesh triangles array
List <int> triList = new List <int> ();
int[] newTriangles = meshCreate.ArrangeTrianglesForCube(mesh.triangles.Length);
triList.AddRange(mesh.triangles);
triList.AddRange(newTriangles);
mesh.triangles = triList.ToArray();
//reset and destroy some variables
vertCubes.Clear();
Destroy(extrudingCube);
Destroy(endPos);
//remove and add the MeshCollider so the collider is updated with the new mesh formation
Destroy(hitTransform.gameObject.GetComponent <MeshCollider> ());
hitTransform.gameObject.AddComponent <MeshCollider>();
}