private void reset()
{
//inits the vertices the particles in an even spaced grid
for (int j = 0; j < gridSize; j++)
{
for (int i = 0; i < gridSize; i++)
{
float U = (i / (float)(gridSize - 1)) - 0.5f;
float V = (j / (float)(gridSize - 1)) - 0.5f;
int BallID = j * gridSize + i;
_particles[BallID].currentPosition = new Vector3((float)clothScale * U, 8.5f, (float)clothScale * V);
_particles[BallID].currentVelocity = Vector3.zero;
_particles[BallID].inverseMass = 1.0f / mass;
_particles[BallID].pinned = false;
_particles[BallID].tension = Vector3.zero;
}
}
float naturalLengthVec = Vector3.Distance(_particles[0].currentPosition, _particles[1].currentPosition);
//Pinned the corners
_particles[0].pinned = true;
_particles[gridSize - 1].pinned = true;
/*
* _particles[gridSize * (gridSize -1)].pinned = true;
* _particles[gridSize * gridSize - 1].pinned = true;
*
*/
int currentSpring = 0;
//Connecting the springs that are next to each other except the points on the edge of row
for (int j = 0; j < gridSize; j++)
{
for (int i = 0; i < gridSize; i++)
{
_springs[currentSpring] = new ClothSpring(j * gridSize + i, j * gridSize + 1, naturalLengthVec, StretchStiffness);
currentSpring++;
}
}
}
private void reset()
{
Mesh myCloth = GetComponent <MeshFilter>().mesh;
float naturalLengthVec = (_particles[0].currentPosition - _particles[1].currentPosition).magnitude;
//Pinned the corners
_particles[0].pinned = true;
_particles[gridSize - 1].pinned = true;
_particles[gridSize * (gridSize - 1)].pinned = true;
_particles[gridSize * gridSize - 1].pinned = true;
//Initialise the springs
int currentSpring = 0;
//The first (gridSize-1)*gridSize springs go from one ball to the next, excluding those on the right hand edge
for (int j = 0; j < gridSize; j++)
{
for (int i = 0; i < gridSize - 1; i++)
{
_springs[currentSpring] = new ClothSpring(j * gridSize + i, j * gridSize + i + 1, naturalLengthVec, StretchStiffness);
currentSpring++;
}
}
//The next (gridSize-1)*gridSize springs go from one ball to the one below, excluding those on the bottom edge
for (int j = 0; j < gridSize - 1; j++)
{
for (int i = 0; i < gridSize; i++)
{
_springs[currentSpring] = new ClothSpring(j * gridSize + i, (j + 1) * gridSize + i, naturalLengthVec, StretchStiffness);
currentSpring++;
}
}
//The next (gridSize-1)*(gridSize-1) go from a ball to the one below and right, excluding those on the bottom or right
for (int j = 0; j < gridSize - 1; j++)
{
for (int i = 0; i < gridSize - 1; i++)
{
_springs[currentSpring] = new ClothSpring(j * gridSize + i, (j + 1) * gridSize + i + 1, naturalLengthVec * (float)Mathf.Sqrt(2.0f), BendStiffness);
currentSpring++;
}
}
//The next (gridSize-1)*(gridSize-1) go from a ball to the one below and left, excluding those on the bottom or right
for (int j = 0; j < gridSize - 1; j++)
{
for (int i = 1; i < gridSize; i++)
{
_springs[currentSpring] = new ClothSpring(j * gridSize + i, (j + 1) * gridSize + i - 1, naturalLengthVec * (float)Mathf.Sqrt(2.0f), BendStiffness);
currentSpring++;
}
}
//The first (gridSize-2)*gridSize springs go from one ball to the next but one, excluding those on or next to the right hand edge
for (int j = 0; j < gridSize; j++)
{
for (int i = 0; i < gridSize - 2; i++)
{
_springs[currentSpring] = new ClothSpring(j * gridSize + i, j * gridSize + i + 2, naturalLengthVec * 2, BendStiffness);
currentSpring++;
}
}
//The next (gridSize-2)*gridSize springs go from one ball to the next but one below, excluding those on or next to the bottom edge
for (int j = 0; j < gridSize - 2; j++)
{
for (int i = 0; i < gridSize; i++)
{
_springs[currentSpring] = new ClothSpring(j * gridSize + i, (j + 2) * gridSize + i, naturalLengthVec * 2, BendStiffness);
currentSpring++;
}
}
UpdateMesh();
}
public void Reset()
{
constraints.Clear();
springs.Clear();
clothAvarage = Vector3.zero;
gridSize = gridSizeInit;
particles = new ClothParticle[gridSize, gridSize];
float x = 0;
for (int i = 0; i < particles.GetLength(0); i++)
{
float z = 0;
for (int j = 0; j < particles.GetLength(1); j++)
{
ClothParticle p = new ClothParticle(new Vector3(x, 0, z), particleMass, particleCollider);
particles[i, j] = p;
z = z + radius;
clothAvarage += new Vector3(0, -(radius / (gridSize) / 2), radius / gridSize);
}
x = x + radius;
clothAvarage += new Vector3(radius / 2, 0, 0);
}
for (int i = 0; i < particles.GetLength(0); i++)
{
for (int j = 0; j < particles.GetLength(1); j++)
{
ClothParticle mainParticle = particles[i, j];
ClothParticle subParticle;
if (i < particles.GetLength(0) - 1)
{
subParticle = particles[i + 1, j];
ClothSpring s1 = new ClothSpring(mainParticle, subParticle, tenstion);
springs.Add(s1);
ClothConstraint c1 = new ClothConstraint(mainParticle, subParticle);
constraints.Add(c1);
mainParticle.constraints.Add(c1);
subParticle.constraints.Add(c1);
}
if (j < particles.GetLength(1) - 1)
{
subParticle = particles[i, j + 1];
ClothSpring s2 = new ClothSpring(mainParticle, subParticle, tenstion);
springs.Add(s2);
ClothConstraint c2 = new ClothConstraint(mainParticle, subParticle);
constraints.Add(c2);
mainParticle.constraints.Add(c2);
subParticle.constraints.Add(c2);
}
if (sheerGrid)
{
if (j < particles.GetLength(0) - 1 && i < particles.GetLength(1) - 1)
{
subParticle = particles[i + 1, j + 1];
ClothSpring s3 = new ClothSpring(mainParticle, subParticle, tenstion);
springs.Add(s3);
ClothConstraint c3 = new ClothConstraint(mainParticle, subParticle);
constraints.Add(c3);
mainParticle.constraints.Add(c3);
subParticle.constraints.Add(c3);
}
if (j > 0 && i < particles.GetLength(1) - 1)
{
subParticle = particles[i + 1, j - 1];
ClothSpring s4 = new ClothSpring(mainParticle, subParticle, tenstion);
springs.Add(s4);
ClothConstraint c4 = new ClothConstraint(mainParticle, subParticle);
constraints.Add(c4);
mainParticle.constraints.Add(c4);
subParticle.constraints.Add(c4);
}
}
if (bendGrid)
{
if (i < particles.GetLength(0) - 2)
{
subParticle = particles[i + 2, j];
ClothSpring s5 = new ClothSpring(mainParticle, subParticle, tenstion);
springs.Add(s5);
ClothConstraint c5 = new ClothConstraint(mainParticle, subParticle);
constraints.Add(c5);
mainParticle.constraints.Add(c5);
subParticle.constraints.Add(c5);
}
if (j < particles.GetLength(1) - 2)
{
subParticle = particles[i, j + 2];
ClothSpring s6 = new ClothSpring(mainParticle, subParticle, tenstion);
springs.Add(s6);
ClothConstraint c6 = new ClothConstraint(mainParticle, subParticle);
constraints.Add(c6);
mainParticle.constraints.Add(c6);
subParticle.constraints.Add(c6);
}
if (j < particles.GetLength(0) - 2 && i < particles.GetLength(1) - 2)
{
subParticle = particles[i + 2, j + 2];
ClothSpring s7 = new ClothSpring(mainParticle, subParticle, tenstion);
springs.Add(s7);
ClothConstraint c7 = new ClothConstraint(mainParticle, subParticle);
constraints.Add(c7);
mainParticle.constraints.Add(c7);
subParticle.constraints.Add(c7);
}
if (j > 1 && i < particles.GetLength(1) - 2)
{
subParticle = particles[i + 2, j - 2];
ClothSpring s8 = new ClothSpring(mainParticle, subParticle, tenstion);
springs.Add(s8);
ClothConstraint c8 = new ClothConstraint(mainParticle, subParticle);
constraints.Add(c8);
mainParticle.constraints.Add(c8);
subParticle.constraints.Add(c8);
}
}
}
}
particles[0, gridSize - 1].posLocked = true;
particles[0, gridSize - 1].startPos = particles[0, gridSize - 1].pos;
particles[gridSize - 1, gridSize - 1].posLocked = true;
particles[gridSize - 1, gridSize - 1].startPos = particles[gridSize - 1, gridSize - 1].pos;
selectedParticle = particles[gridSize - 1, gridSize - 1];
filter.mesh = GenerateMesh();
CreateWireframe();
}
