public void SliceMyMesh() {
if (MyMesh) {
//GameObject SlicedMesh = (GameObject) Instantiate (gameObject, transform.position, Quaternion.identity); // off set the positions after the meshes are created, by finding out the releative bounds difference
SlicedCustomMesh1 = (CustomMesh) gameObject.GetComponent("CustomMesh");
//SlicedCustomMesh2 = (CustomMesh) SlicedMesh.GetComponent("CustomMesh");
//SlicedCustomMesh2.IsSingleCube = false;
//MyPlaneNormal = MyPlaneRotation.transform.position;
MySlicePlane = new Plane(MyPlaneNormal, PlaneDistance);
MySlicePlane.SetNormalAndPosition(MyPlaneNormal, new Vector3(0,0.5f,0));
SlicedPoints1 = new List<Vector3>();
SlicedIndicies1 = new List<int>();
SlicedPoints2 = new List<Vector3>();
SlicedIndicies2 = new List<int>();
// Where the plane intersects
SlicedIndicies3 = new List<int>();
SlicedIndicies4 = new List<int>();
SlicedPoints4 = new List<Vector3>();
//SlicedMesh.MyCustomMesh
// Add all the indicies that intersect with the plane
for (int i = 0; i < SlicedCustomMesh1.MyCustomMesh.Indicies.Count; i += 3) { // for all the meshes triangles
Vector3 Vertex1 = SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedCustomMesh1.MyCustomMesh.Indicies[i]];
Vector3 Vertex2 = SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedCustomMesh1.MyCustomMesh.Indicies[i+1]];
Vector3 Vertex3 = SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedCustomMesh1.MyCustomMesh.Indicies[i+2]];
if (MySlicePlane.GetSide(Vertex1+MyPlanePosition) && MySlicePlane.GetSide(Vertex2+MyPlanePosition) && MySlicePlane.GetSide(Vertex3+MyPlanePosition)) { // if all 3 verticies are on the same side
} else if (!MySlicePlane.GetSide(Vertex1+MyPlanePosition) && !MySlicePlane.GetSide(Vertex2+MyPlanePosition) && !MySlicePlane.GetSide(Vertex3+MyPlanePosition)) { // if they are not on same side, they are intersected by the plane
} else {
SlicedIndicies3.Add(SlicedCustomMesh1.MyCustomMesh.Indicies[i]);
SlicedIndicies3.Add(SlicedCustomMesh1.MyCustomMesh.Indicies[i+1]);
SlicedIndicies3.Add(SlicedCustomMesh1.MyCustomMesh.Indicies[i+2]);
SlicedPoints3.Add (Vertex1);
SlicedPoints3.Add (Vertex2);
SlicedPoints3.Add (Vertex3);
}
}
// Now create slices in these triangles
for (int i = 0; i < SlicedIndicies3.Count; i += 3) { // for all the meshes triangles
Vector3 Vertex1 = SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedIndicies3[i]];
Vector3 Vertex2 = SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedIndicies3[i+1]];
Vector3 Vertex3 = SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedIndicies3[i+2]];
// from a slice through a triangle
// we can get a maximum of 5 points
// break down 5 points into 3 triangles
// test this by chose random points along the triangle lines and adding them vertexes
//RaycastHit hit1;
Ray Ray1 = new Ray(Vertex1, Vertex1-Vertex2);
float RayDistance1 = Vector3.Distance (Vertex1, Vertex2);
if (MySlicePlane.Raycast(Ray1, out RayDistance1)) {
Debug.Log(" Triangles are sliced 1" );
DebugVector3 (SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedIndicies3[i]]);
} else {
Debug.Log(i + " Triangles Not Sliced Vertex 1 - ");
Debug.Log (" Distance: " + RayDistance1);
DebugVector3 (Vertex1);
DebugVector3 (Vertex1 + Ray1.direction*RayDistance1);
if (RayDistance1 != 0) {
SlicedIndicies4.Add (i);
SlicedPoints4.Add (Vertex1 + Ray1.direction*RayDistance1);
//SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedIndicies3[i]] = Vertex1 + Ray1.direction*RayDistance1;
}
}
Ray Ray2 = new Ray(Vertex2, Vertex2-Vertex3);
float RayDistance2 = Vector3.Distance (Vertex1, Vertex2);
if (MySlicePlane.Raycast(Ray2, out RayDistance2)) {
Debug.Log(" Triangles are sliced 2" );
SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedIndicies3[i]] = Vertex2 + Ray2.direction*RayDistance2;
} else {
Debug.Log(i + " Triangles Not Sliced 2 - ");
Debug.Log (" Distance: " + RayDistance2);
DebugVector3 (Vertex2);
DebugVector3 (Vertex2 + Ray2.direction*RayDistance2);
if (RayDistance2 != 0) {
SlicedIndicies4.Add (i+1);
SlicedPoints4.Add (Vertex2 + Ray2.direction*RayDistance2);
//SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedIndicies3[i]] = Vertex2 + Ray2.direction*RayDistance2;
}
}
Ray Ray3 = new Ray(Vertex3, Vertex3-Vertex1);
float RayDistance3 = Vector3.Distance (Vertex3, Vertex1);
if (MySlicePlane.Raycast(Ray3, out RayDistance3)) {
Debug.Log(" Triangles are sliced 3" );
DebugVector3 (Vertex2);
SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedIndicies3[i]] = Vertex3 + Ray3.direction*RayDistance3;
} else {
Debug.Log(i + " Triangles a Not Sliced 3 -");
Debug.Log (" Distance: " + RayDistance3);
DebugVector3 (Vertex3);
DebugVector3 (Vertex3 + Ray3.direction*RayDistance3);
if (RayDistance3 != 0) {
SlicedIndicies4.Add (i+2);
SlicedPoints4.Add (Vertex3 + Ray3.direction*RayDistance3);
//SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedIndicies3[i]] = Vertex3 + Ray3.direction*RayDistance3;
}
}
//Mathf.Int
}
// test slice through the middle, where the plane is .5, .5 ,.5
// Concieve a 2d plane that is the slice (sword action pewpew)
// find all the intersecting points with the mesh
for (int i = 0; i < SlicedCustomMesh1.MyCustomMesh.Indicies.Count; i += 3) { // for all the meshes triangles
//SlicedCustomMesh2.MyCustomMesh.Indicies[i] = 0;
Vector3 Vertex1 = SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedCustomMesh1.MyCustomMesh.Indicies[i]];
Vector3 Vertex2 = SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedCustomMesh1.MyCustomMesh.Indicies[i+1]];
Vector3 Vertex3 = SlicedCustomMesh1.MyCustomMesh.Verticies[SlicedCustomMesh1.MyCustomMesh.Indicies[i+2]];
// if our vertexes are on the positive side of the plane, add to mesh 1
//if (Vertex1.y > 0.5f) {
if (MySlicePlane.GetSide(Vertex1) && MySlicePlane.GetSide(Vertex2) && MySlicePlane.GetSide(Vertex3)) { // if all 3 verticies are on the same side
SlicedIndicies1.Add(SlicedCustomMesh1.MyCustomMesh.Indicies[i]);
SlicedIndicies1.Add(SlicedCustomMesh1.MyCustomMesh.Indicies[i+1]);
SlicedIndicies1.Add(SlicedCustomMesh1.MyCustomMesh.Indicies[i+2]);
//} else {
} else if (!MySlicePlane.GetSide(Vertex1) && !MySlicePlane.GetSide(Vertex2) && !MySlicePlane.GetSide(Vertex3)){ // if they are not on same side, they are intersected by the plane
SlicedIndicies2.Add(SlicedCustomMesh1.MyCustomMesh.Indicies[i]);
SlicedIndicies2.Add(SlicedCustomMesh1.MyCustomMesh.Indicies[i+1]);
SlicedIndicies2.Add(SlicedCustomMesh1.MyCustomMesh.Indicies[i+2]);
}
}
//for (int i = 0; i < 0
// Add all the points onto 2 new meshes
// Add the rest of the meshes points onto the 2 created ones
// Instantiate the new objects in the points it was cut
// test this with non moving objects for positioning
//SlicedCustomMesh1.MyCustomMesh.Verticies = SlicedPoints1;
if (IsSlice) {
SlicedCustomMesh1.MyCustomMesh.Indicies.Clear ();
//SlicedCustomMesh1.MyCustomMesh.Indicies = SlicedIndicies1;
SlicedCustomMesh1.MyCustomMesh.Indicies = SlicedIndicies3;
//SlicedCustomMesh2.MyCustomMesh.Indicies.Clear ();
//SlicedCustomMesh2.MyCustomMesh.Indicies = SlicedIndicies2;
//SlicedCustomMesh1.MyCustomMesh.Refresh(SlicedPoints1, SlicedIndicies1, SlicedCustomMesh1.MyCustomMesh.TextureCoordinates);
//SlicedCustomMesh2.MyCustomMesh.Refresh(SlicedPoints2, SlicedIndicies2, SlicedCustomMesh2.MyCustomMesh.TextureCoordinates);
SlicedCustomMesh1.UpdateMesh(SlicedCustomMesh1.MyCustomMesh);
//SlicedCustomMesh2.UpdateMesh(SlicedCustomMesh2.MyCustomMesh);
}
}
}
