Composite MakeSpinalComposite(float length, int boneNum, Vector2 rootPosition)
{
if (boneNum <= 1)
{
throw new System.ArgumentException("boneNUmは\"2\"以上に設定してください。");
}
float boneLength = length / (boneNum + 1);
var composite = new Composite();
List <int> particleIndices = new List <int>();
List <int> springIndices = new List <int>();
var tp = new Particle(rootPosition);
particleIndices.Add(composite.elemNum);
composite.AddSimElement(tp, 0);
for (int i = 1; i < boneNum; ++i)
{
var p = new Particle(rootPosition + new Vector2(0f, -boneLength * i));
particleIndices.Add(composite.elemNum);
composite.AddSimElement(p, 0);
var s = new SpringConstraint(tp, p);
springIndices.Add(composite.elemNum);
composite.AddSimElement(s, 1);
tp = p;
}
composite.AddRenderingGroup(new SimRenderer.SimRenderingGroup(1, springIndices));
composite.AddRenderingGroup(new SimRenderer.SimRenderingGroup(0, particleIndices));
return(composite);
}
Composite MakeTree(int depth, float branchLength)
{
composite = new Composite();
branchParticleIndices = new List <int>();
springIndices = new List <int>();
leafSpringIndices = new List <int>();
Particle root = new Particle(Vector2.zero, particleDamping);
branchParticleIndices.Add(composite.elemNum);
composite.AddSimElement(root);
PinConstraint rootPin = new PinConstraint(root);
Particle branch = MakeBranch(root, depth, branchLength, Mathf.PI * 0.5f, angleStiffness);
PinConstraint branchPin = new PinConstraint(branch);
composite.AddSimElement(rootPin);
composite.AddSimElement(branchPin);
composite.AddRenderingGroup(new SimRenderer.SimRenderingGroup(2, springIndices));
composite.AddRenderingGroup(new SimRenderer.SimRenderingGroup(0, branchParticleIndices));
composite.AddRenderingGroup(new SimRenderer.SimRenderingGroup(1, leafSpringIndices));
return(composite);
}
Composite MakeSpinalComposite(float length, int rimbNum, Vector2 rootPosition, float angle)
{
if (rimbNum <= 1)
{
throw new System.ArgumentException("rimbNumは\"2\"以上に設定してください。");
}
float boneLength = length / (rimbNum + 1);
var composite = new Composite();
List <int> particleIndices = new List <int>();
List <int> gravityIndices = new List <int>();
List <int> springIndices = new List <int>();
Vector2 direction = AngleToVec2(angle);
var tp = new Particle(rootPosition);
particleIndices.Add(composite.elemNum);
composite.AddSimElement(tp, 0);
var g = new ConstantForceConstraint(tp, gravity);
gravityIndices.Add(composite.elemNum);
composite.AddSimElement(g, 5);
//var sinWave = new SinWaveForce(tp, Vector2.right, amplitude, timeScale, 0f);
//composite.simElements.Add(sinWave);
for (int i = 1; i < rimbNum; ++i)
{
var p = new Particle(rootPosition + direction * boneLength * i, damping);
particleIndices.Add(composite.elemNum);
composite.AddSimElement(p, 0);
// var s = new SpringConstraint(tp, p);
var s = new DistanceConstraint(tp, p);
springIndices.Add(composite.elemNum);
composite.AddSimElement(s, 1);
g = new ConstantForceConstraint(p, gravity);
gravityIndices.Add(composite.elemNum);
composite.AddSimElement(g, 5);
tp = p;
}
composite.AddRenderingGroup(new SimRenderer.SimRenderingGroup(1, springIndices));
composite.AddRenderingGroup(new SimRenderer.SimRenderingGroup(2, gravityIndices));
composite.AddRenderingGroup(new SimRenderer.SimRenderingGroup(0, particleIndices));
return(composite);
}
Composite MakeClothComposite(float rowSize, int row, float colSize, int col, float particleDamping, float springStiffness, Vector2 gravity, Vector2 rootPosition, Vector2 offset)
{
float rowCellSize = rowSize / row;
float colCellSize = colSize / col;
Particle[] rowParticles = new Particle[row];
var composite = new Composite();
List <int> particleIndices = new List <int>();
List <int> springIndices = new List <int>();
for (var y = 0; y < col; ++y)
{
if (y == 0)
{
for (var x = 0; x < row; ++x)
{
var p = new Particle(rootPosition + new Vector2(rowCellSize * x, -colCellSize * y) + offset, particleDamping);
particleIndices.Add(composite.elemNum);
composite.AddSimElement(p, 0);
var pc = new PinConstraint(p);
composite.AddSimElement(p, 10);
if (x != 0)
{
var s = new SpringConstraint(rowParticles[x - 1], p, springStiffness);
// var s = new DistanceConstraint(rowParticles[x - 1], p);
springIndices.Add(composite.elemNum);
composite.AddSimElement(s, 1);
}
rowParticles[x] = p;
}
}
else
{
for (var x = 0; x < row; ++x)
{
var p = new Particle(rootPosition + new Vector2(rowCellSize * x, -colCellSize * y) + offset, particleDamping);
particleIndices.Add(composite.elemNum);
composite.AddSimElement(p, 0);
var cfc = new ConstantForceConstraint(p, gravity);
composite.AddSimElement(cfc, 5);
var s = new SpringConstraint(rowParticles[x], p, springStiffness);
// var s = new DistanceConstraint(rowParticles[x], p);
springIndices.Add(composite.elemNum);
composite.AddSimElement(s, 1);
if (x != 0)
{
s = new SpringConstraint(rowParticles[x - 1], p, springStiffness);
// s = new DistanceConstraint(rowParticles[x - 1], p);
springIndices.Add(composite.elemNum);
composite.AddSimElement(s, 1);
}
rowParticles[x] = p;
}
}
}
composite.AddRenderingGroup(new SimRenderer.SimRenderingGroup(1, springIndices));
composite.AddRenderingGroup(new SimRenderer.SimRenderingGroup(0, particleIndices));
return(composite);
}