public RopeTest()
{
const int N = 40;
Vec2[] vertices = new Vec2[N];
float [] masses = new float [N];
for (int i = 0; i < N; ++i)
{
vertices[i].Set(0.0f, 20.0f - 0.25f * i);
masses[i] = 1.0f;
}
masses[0] = 0.0f;
masses[1] = 0.0f;
RopeDef def = new RopeDef();
def.vertices = new List<Vec2>(vertices);
def.count = N;
def.gravity.Set(0.0f, -10.0f);
def.masses = new List<float>(masses);
def.damping = 0.1f;
def.k2 = 1.0f;
def.k3 = 0.5f;
m_rope.Initialize(def);
m_angle = 0.0f;
m_rope.SetAngle(m_angle);
}
///
public void Initialize(RopeDef def)
{
throw new NotImplementedException();
//Utilities.Assert(def.count >= 3);
//m_count = def.count;
//m_ps = (Vec2*)Alloc(m_count * sizeof(Vec2));
//m_p0s = (Vec2*)Alloc(m_count * sizeof(Vec2));
//m_vs = (Vec2*)Alloc(m_count * sizeof(Vec2));
//m_ims = (float*)Alloc(m_count * sizeof(float));
//for (int i = 0; i < m_count; ++i)
//{
// m_ps[i] = def.vertices[i];
// m_p0s[i] = def.vertices[i];
// m_vs[i].SetZero();
// float m = def.masses[i];
// if (m > 0.0f)
// {
// m_ims[i] = 1.0f / m;
// }
// else
// {
// m_ims[i] = 0.0f;
// }
//}
//int count2 = m_count - 1;
//int count3 = m_count - 2;
//m_Ls = (float*)Alloc(count2 * sizeof(float));
//m_as = (float*)Alloc(count3 * sizeof(float));
//for (int i = 0; i < count2; ++i)
//{
// Vec2 p1 = m_ps[i];
// Vec2 p2 = m_ps[i+1];
// m_Ls[i] = Distance(p1, p2);
//}
//for (int i = 0; i < count3; ++i)
//{
// Vec2 p1 = m_ps[i];
// Vec2 p2 = m_ps[i + 1];
// Vec2 p3 = m_ps[i + 2];
// Vec2 d1 = p2 - p1;
// Vec2 d2 = p3 - p2;
// float a = Utilities.Cross(d1, d2);
// float b = Utilities.Dot(d1, d2);
// m_as[i] = Atan2(a, b);
//}
//m_gravity = def.gravity;
//m_damping = def.damping;
//m_k2 = def.k2;
//m_k3 = def.k3;
}
///
public void Initialize(RopeDef def){
throw new NotImplementedException();
//Utilities.Assert(def.count >= 3);
//m_count = def.count;
//m_ps = (Vec2*)Alloc(m_count * sizeof(Vec2));
//m_p0s = (Vec2*)Alloc(m_count * sizeof(Vec2));
//m_vs = (Vec2*)Alloc(m_count * sizeof(Vec2));
//m_ims = (float*)Alloc(m_count * sizeof(float));
//for (int i = 0; i < m_count; ++i)
//{
// m_ps[i] = def.vertices[i];
// m_p0s[i] = def.vertices[i];
// m_vs[i].SetZero();
// float m = def.masses[i];
// if (m > 0.0f)
// {
// m_ims[i] = 1.0f / m;
// }
// else
// {
// m_ims[i] = 0.0f;
// }
//}
//int count2 = m_count - 1;
//int count3 = m_count - 2;
//m_Ls = (float*)Alloc(count2 * sizeof(float));
//m_as = (float*)Alloc(count3 * sizeof(float));
//for (int i = 0; i < count2; ++i)
//{
// Vec2 p1 = m_ps[i];
// Vec2 p2 = m_ps[i+1];
// m_Ls[i] = Distance(p1, p2);
//}
//for (int i = 0; i < count3; ++i)
//{
// Vec2 p1 = m_ps[i];
// Vec2 p2 = m_ps[i + 1];
// Vec2 p3 = m_ps[i + 2];
// Vec2 d1 = p2 - p1;
// Vec2 d2 = p3 - p2;
// float a = Utilities.Cross(d1, d2);
// float b = Utilities.Dot(d1, d2);
// m_as[i] = Atan2(a, b);
//}
//m_gravity = def.gravity;
//m_damping = def.damping;
//m_k2 = def.k2;
//m_k3 = def.k3;
}