/// <summary>
/// Creates line renderers.
/// </summary>
/// <param name="sd">
/// The spring damper.
/// </param>
/// <returns>
/// The <see cref="GameObject"/>.
/// </returns>
private GameObject CreateLineRenderers(SpringDamper sd)
{
// instantiate a line prefab
var lineGo = Instantiate(this.linePrefab, (sd.P1.Position + sd.P2.Position) / 2, new Quaternion()) as GameObject; // use line prefab to draw from first particle to second particle
return(lineGo);
}
/// <summary>
/// Finds particle neighbors and creates spring dampers and line renderers there.
/// </summary>
private void SetNeighborsAndDampers()
{
foreach (var p in this.particleList)
{
p.Neighbors = new List <Particle>();
var particleNum = 0;
for (var i = 0; i < this.particleList.Count; i++)
{
// go through however many particles are in the list
if (this.particleList[i] == p)
{
// if the index of a particle in the list equals the current particle, set that particle's number to be the same as that index
particleNum = i;
}
}
// Note: how many heights you have is how many times you iterate through widths. Create spring dampers for every neighbor
if (particleNum + this.width < this.particleList.Count)
{
// above neighbor
p.Neighbors.Add(this.particleList[particleNum + this.width]); // add that particle to the neighbor list
var sd = new SpringDamper(p, this.particleList[particleNum + this.width], this.springConstant, this.dampingFactor, this.restLength); // create a spring damper
this.springDamperList.Add(sd); // add that spring damper to the spring damper list
this.lineList.Add(this.CreateLineRenderers(sd)); // create a line renderer here and add it to the line list
}
if ((particleNum + 1) % this.width > particleNum % this.width)
{
// immediate right neighbor
p.Neighbors.Add(this.particleList[particleNum + 1]); // add that particle to the neighbor list
var sd = new SpringDamper(p, this.particleList[particleNum + 1], this.springConstant, this.dampingFactor, this.restLength); // create a spring damper
this.springDamperList.Add(sd); // add that spring damper to the spring damper list
this.lineList.Add(this.CreateLineRenderers(sd)); // create a line renderer here and add it to the line list
}
if (particleNum + this.width + 1 < this.particleList.Count && (particleNum + 1) % this.width > particleNum % this.width)
{
// top right neighbor
p.Neighbors.Add(this.particleList[particleNum + this.width + 1]); // add that particle to the neighbor list
var sd = new SpringDamper(p, this.particleList[particleNum + this.width + 1], this.springConstant, this.dampingFactor, this.restLength); // create a spring damper
this.springDamperList.Add(sd); // add that spring damper to the spring damper list
this.lineList.Add(this.CreateLineRenderers(sd)); // create a line renderer here and add it to the line list
}
if (particleNum + this.width - 1 < this.particleList.Count && (particleNum + this.width - 1) % this.width < particleNum % this.width)
{
// top left neighbor
p.Neighbors.Add(this.particleList[particleNum + this.width - 1]); // add that particle to the neighbor list
var sd = new SpringDamper(p, this.particleList[particleNum + this.width - 1], this.springConstant, this.dampingFactor, this.restLength); // create a spring damper
this.springDamperList.Add(sd); // add that spring damper to the spring damper list
this.lineList.Add(this.CreateLineRenderers(sd)); // create a line renderer here and add it to the line list
}
}
}
public GameObject CreateDrawer(SpringDamper sd) //takes in sd value
{ //used for line renderers
var drawerGo = Instantiate(PrefabDamper, (sd.P1.Position + sd.P2.Position) / 2f, new Quaternion()) as GameObject; //instantiate game object
if (drawerGo == null)
{
return(null);
}
var lr = drawerGo.GetComponent <LineRenderer>();
lr.materials[0].color = Color.black; //the color of the line renderers. //will be black
lr.SetWidth(.1f, .1f);
return(drawerGo);
}
public void SetSpringDampers()
{
foreach (var mp in Monoparticles)
{
var index = FindIndex(Monoparticles, mp);
mp.Particle.Particles = new List <Particle>();
if ((index + 1) % Width > index % Width)
{ //creates a horizontal line
mp.Particle.Particles.Add(Monoparticles[index + 1].Particle);
var sd = new SpringDamper(mp.Particle, Monoparticles[index + 1].Particle, SpringConstant, DampingFactor, RestLength);
Drawers.Add(CreateDrawer(sd));
SpringDampers.Add(sd);
}
if (index + Width < Monoparticles.Count)
{ //creates a vertical line
mp.Particle.Particles.Add(Monoparticles[index + Width].Particle);
var sd = new SpringDamper(mp.Particle, Monoparticles[index + Width].Particle, SpringConstant, DampingFactor, RestLength);
Drawers.Add(CreateDrawer(sd));
SpringDampers.Add(sd);
}
if (index + Width - 1 < Monoparticles.Count && index - 1 >= 0 && (index - 1) % Width < index % Width)
{ //creates a diagonal line (top left)
mp.Particle.Particles.Add(Monoparticles[index + Width - 1].Particle);
var sd = new SpringDamper(mp.Particle, Monoparticles[index + Width - 1].Particle, SpringConstant, DampingFactor, RestLength);
Drawers.Add(CreateDrawer(sd));
SpringDampers.Add(sd);
}
if (index + Width + 1 >= Monoparticles.Count || (index + 1) % Width <= index % Width)
{
continue;
}
{
//creates a diagonal line (top right)
mp.Particle.Particles.Add(Monoparticles[index + Width + 1].Particle);
var sd = new SpringDamper(mp.Particle, Monoparticles[index + Width + 1].Particle, SpringConstant, DampingFactor, RestLength);
Drawers.Add(CreateDrawer(sd));
SpringDampers.Add(sd);
}
}
}
