public void generateSprings()
{
foreach (ApplyParticle i in allPoints)
{
int springIndex = FindIndex(allPoints, i);
i.particle.allInstances = new List <Particle>();
if ((springIndex + 1) % width > springIndex % width)
{
i.particle.allInstances.Add(allPoints[springIndex + 1].particle);
SpringDamper sdRight = new SpringDamper(Spring, Damping, Rest, i.particle, allPoints[springIndex + 1].particle);
allJoints.Add(sdRight);
}
if (springIndex + width < allPoints.Count)
{
i.particle.allInstances.Add(allPoints[springIndex + width].particle);
SpringDamper sdDown = new SpringDamper(Spring, Damping, Rest, i.particle, allPoints[springIndex + width].particle);
allJoints.Add(sdDown);
}
if ((springIndex + 1) % width > springIndex % width && springIndex + width + 1 < allPoints.Count)
{
i.particle.allInstances.Add(allPoints[springIndex + width + 1].particle);
SpringDamper sdRD = new SpringDamper(Spring, Damping, Rest, i.particle, allPoints[springIndex + width + 1].particle);
allJoints.Add(sdRD);
}
if (springIndex + width - 1 < allPoints.Count && springIndex - 1 >= 0 && (springIndex - 1) % width < springIndex % width)
{
i.particle.allInstances.Add(allPoints[springIndex + width - 1].particle);
SpringDamper sdLD = new SpringDamper(Spring, Damping, Rest, i.particle, allPoints[springIndex + width - 1].particle);
allJoints.Add(sdLD);
}
}
foreach (SpringDamper i in allJoints)
{
int sdIndex = FindIndex(allJoints, i);
GameObject linkDraw = new GameObject();
LineRenderer lr = linkDraw.AddComponent <LineRenderer>();
linkDraw.transform.position = (allJoints[sdIndex].partOne.Position + allJoints[sdIndex].partTwo.Position) / 2;
lr.SetPosition(0, allJoints[sdIndex].partOne.Position);
lr.SetPosition(1, allJoints[sdIndex].partTwo.Position);
lr.material.color = Color.black;
lr.SetWidth(0.25f, 0.25f);
allLines.Add(lr);
linkDraw.name = "Link " + (allLines.Count).ToString();
lr.transform.parent = transform;
}
}
public int FindIndex(List <SpringDamper> SpringList, SpringDamper aSpringDamper)
{
int index = 0;
for (int i = 0; i < SpringList.Count; i++)
{
if (SpringList[i] == aSpringDamper)
{
index = i;
break;
}
}
return(index);
}
public void clothTearing(SpringDamper torn)
{
if ((torn.partTwo.Position - torn.partOne.Position).magnitude > (Rest * tearPoint) / (0.03f * fSpring))
{
if ((torn.partTwo.allInstances.Contains(torn.partOne)))
{
torn.partTwo.allInstances.Remove(torn.partOne);
Destroy(allLines[allJoints.IndexOf(torn)].gameObject);
allLines.Remove(allLines[allJoints.IndexOf(torn)]);
allJoints.Remove(torn);
}
if (torn.partOne.allInstances.Contains(torn.partTwo))
{
torn.partOne.allInstances.Remove(torn.partTwo);
Destroy(allLines[allJoints.IndexOf(torn)].gameObject);
allLines.Remove(allLines[allJoints.IndexOf(torn)]);
allJoints.Remove(torn);
}
}
}
// Use this for initialization
void Start()
{
p1 = new Particle(new Vector3(0, 0, 0));
p2 = new Particle(new Vector3(0, 1, 0));
SD = new SpringDamper(p1, p2);
for (int y = 0; y < height; y++)
{
for (float x = 0; x < width; x++)
{
particleList.Add(new Particle(new Vector3(x, y, 0)));
}
}
for (int u = 0; u < particleList.Count; u++)
{
//if (particleList[u].r.y == height - 1)
//{
// particleList[u].anchor = true;
//}
if (particleList[u].r.y == height - 1)
{
particleList[height * (width - 1)].anchor = true;
particleList[(height * width) - 1].anchor = true;
}
}
for (int i = 0; i < particleList.Count; i++)
{
if (particleList[i].r.x < width - 1)
{
springdamper.Add(new SpringDamper(particleList[i], particleList[i + 1]));
var l = Instantiate(Line);
line.Add(l);
}
if (particleList[i].r.y < height - 1)
{
springdamper.Add(new SpringDamper(particleList[i], particleList[i + width]));
var l = Instantiate(Line);
line.Add(l);
}
if (particleList[i].r.x < width - 1 && particleList[i].r.y < height - 1)
{
springdamper.Add(new SpringDamper(particleList[i], particleList[i + 1 + height]));
var l = Instantiate(Line);
line.Add(l);
}
if (particleList[i].r.x > 0 && particleList[i].r.y != height - 1)
{
springdamper.Add(new SpringDamper(particleList[i], particleList[i - 1 + width]));
var l = Instantiate(Line);
line.Add(l);
}
}
for (int i = 0; i < particleList.Count; i++)
{
if (particleList[i].r.x < width - 1 && particleList[i].r.y < height - 1)
{
forces.Add(new AerodynamicForce(particleList[i], particleList[i + 1], particleList[i + width]));
forces.Add(new AerodynamicForce(particleList[i + 1], particleList[i + width], particleList[i + width + 1]));
}
}
}
/// <summary>
/// Calculates the Spring Force of each spring in the simulation
/// </summary>
/// <param name="s"></param>
void CalcSpringForce(SpringDamper s)
{
Vector3 disBetween = s.p2.transform.position - s.p1.transform.position;
Vector3 disBetweenNorm = disBetween.normalized / s.l;
float dis = CalcDis(s.p2.transform.position, s.p1.transform.position);
float springForce = -k * (s.l - dis);
float v1 = Vector3.Dot(disBetween, s.p1.m_Velocity);
float v2 = Vector3.Dot(disBetween, s.p2.m_Velocity);
float springDamp = -b * (v1 - v2);
float Damper = springForce + springDamp;
Vector3 f1 = Damper * disBetweenNorm;
Vector3 f2 = -f1;
s.p1.m_Force += f1;
s.p2.m_Force += f2;
s.DrawLines();
}
