// TODO: should be refactored. Indices creation shouldn't be independent of vertices/particles creation
void CreateSquareMesh(FracMesh fm)
{
List <int> indices = new List <int>();
for (int z = 0; z < meshPoints - 1; ++z)
{
for (int x = 0; x < meshPoints - 1; ++x)
{
int val_ul = x + (z * meshPoints);
int val_ur = x + (z * meshPoints) + 1;
int val_bl = x + ((z + 1) * meshPoints);
int val_br = x + ((z + 1) * meshPoints) + 1;
indices.Add(val_ul);
indices.Add(val_bl);
indices.Add(val_br);
fm.CreateTriangle(val_ul, val_bl, val_br);
indices.Add(val_ul);
indices.Add(val_br);
indices.Add(val_ur);
fm.CreateTriangle(val_ul, val_br, val_ur);
}
}
fm.CreateMesh(indices.ToArray());
}
// Use this for initialization
void Awake()
{
// Create floor
GameObject floorPlane = GameObject.CreatePrimitive(PrimitiveType.Plane);
floorPlane.transform.position = new Vector3(0, -meshPoints / 2 - 1, 0);
floorPlane.transform.localScale = new Vector3(2, 1, 2);
// Create a first Fracturable Mesh
GameObject initObject = new GameObject();
FracMesh fm = initObject.AddComponent <FracMesh>();
fm.InitializeFracMesh(2650000, 3970000, 264, 397, 13.2);
CreateSpringGrid(fm);
CreateSquareMesh(fm);
fracMeshes.Add(initObject);
}
void CreateSpringGrid(FracMesh fm)
{
int lowerlim = meshPoints / 2;
int higherlim = lowerlim + (meshPoints % 2);
// create all spheres
for (int z = -lowerlim; z < higherlim; ++z)
{
for (int x = -lowerlim; x < higherlim; ++x)
{
Vector3 pos = new Vector3(x, 0, z);
fm.CreateParticle(pos);
}
}
// Assign springs
for (int j = 0; j < fm.nParticles; ++j)
{
bool inLastCol = (j + 1) % meshPoints == 0;
bool inLastRow = j >= meshPoints * (meshPoints - 1);
// horizonal springs
if (!inLastCol)
{
fm.AttachSpring(j, j + 1);
}
// vertical springs
if (!inLastRow)
{
fm.AttachSpring(j, j + meshPoints);
}
// diagonal springs
if (!inLastCol && !inLastRow)
{
fm.AttachSpring(j, j + meshPoints + 1);
}
}
}