137 lines
3.1 KiB
C++
137 lines
3.1 KiB
C++
/*
|
|
* Copyright (c) 2016-2019 Irlan Robson https://irlanrobson.github.io
|
|
*
|
|
* This software is provided 'as-is', without any express or implied
|
|
* warranty. In no event will the authors be held liable for any damages
|
|
* arising from the use of this software.
|
|
* Permission is granted to anyone to use this software for any purpose,
|
|
* including commercial applications, and to alter it and redistribute it
|
|
* freely, subject to the following restrictions:
|
|
* 1. The origin of this software must not be misrepresented; you must not
|
|
* claim that you wrote the original software. If you use this software
|
|
* in a product, an acknowledgment in the product documentation would be
|
|
* appreciated but is not required.
|
|
* 2. Altered source versions must be plainly marked as such, and must not be
|
|
* misrepresented as being the original software.
|
|
* 3. This notice may not be removed or altered from any source distribution.
|
|
*/
|
|
|
|
#ifndef PINNED_CLOTH_H
|
|
#define PINNED_CLOTH_H
|
|
|
|
class PinnedCloth : public Test
|
|
{
|
|
public:
|
|
PinnedCloth()
|
|
{
|
|
// Create cloth
|
|
b3ClothDef def;
|
|
def.mesh = &m_clothMesh;
|
|
def.density = 0.2f;
|
|
def.structural = 100000.0f;
|
|
def.damping = 0.0f;
|
|
|
|
m_cloth = new b3Cloth(def);
|
|
|
|
m_cloth->SetGravity(b3Vec3(0.0f, -9.8f, 0.0f));
|
|
m_cloth->SetWorld(&m_world);
|
|
|
|
// Freeze some particles
|
|
b3AABB3 aabb1;
|
|
aabb1.m_lower.Set(-5.0f, -1.0f, -6.0f);
|
|
aabb1.m_upper.Set(5.0f, 1.0f, -4.0f);
|
|
|
|
b3AABB3 aabb2;
|
|
aabb2.m_lower.Set(-5.0f, -1.0f, 4.0f);
|
|
aabb2.m_upper.Set(5.0f, 1.0f, 6.0f);
|
|
|
|
for (b3Particle* p = m_cloth->GetParticleList().m_head; p; p = p->GetNext())
|
|
{
|
|
if (aabb1.Contains(p->GetPosition()))
|
|
{
|
|
p->SetType(e_staticParticle);
|
|
}
|
|
|
|
if (aabb2.Contains(p->GetPosition()))
|
|
{
|
|
p->SetType(e_staticParticle);
|
|
}
|
|
}
|
|
|
|
m_clothDragger = new b3ClothDragger(&m_ray, m_cloth);
|
|
}
|
|
|
|
~PinnedCloth()
|
|
{
|
|
delete m_clothDragger;
|
|
delete m_cloth;
|
|
}
|
|
|
|
void Step()
|
|
{
|
|
Test::Step();
|
|
|
|
m_cloth->Step(g_testSettings->inv_hertz, g_testSettings->velocityIterations, g_testSettings->positionIterations);
|
|
|
|
m_cloth->Draw();
|
|
|
|
if (m_clothDragger->IsDragging())
|
|
{
|
|
b3Vec3 pA = m_clothDragger->GetPointA();
|
|
b3Vec3 pB = m_clothDragger->GetPointB();
|
|
|
|
g_draw->DrawPoint(pA, 2.0f, b3Color_green);
|
|
|
|
g_draw->DrawPoint(pB, 2.0f, b3Color_green);
|
|
|
|
g_draw->DrawSegment(pA, pB, b3Color_white);
|
|
}
|
|
|
|
extern u32 b3_clothSolverIterations;
|
|
g_draw->DrawString(b3Color_white, "Iterations = %d", b3_clothSolverIterations);
|
|
|
|
float32 E = m_cloth->GetEnergy();
|
|
g_draw->DrawString(b3Color_white, "E = %f", E);
|
|
}
|
|
|
|
void MouseMove(const b3Ray3& pw)
|
|
{
|
|
Test::MouseMove(pw);
|
|
|
|
if (m_clothDragger->IsDragging() == true)
|
|
{
|
|
m_clothDragger->Drag();
|
|
}
|
|
}
|
|
|
|
void MouseLeftDown(const b3Ray3& pw)
|
|
{
|
|
Test::MouseLeftDown(pw);
|
|
|
|
if (m_clothDragger->IsDragging() == false)
|
|
{
|
|
m_clothDragger->StartDragging();
|
|
}
|
|
}
|
|
|
|
void MouseLeftUp(const b3Ray3& pw)
|
|
{
|
|
Test::MouseLeftUp(pw);
|
|
|
|
if (m_clothDragger->IsDragging() == true)
|
|
{
|
|
m_clothDragger->StopDragging();
|
|
}
|
|
}
|
|
|
|
static Test* Create()
|
|
{
|
|
return new PinnedCloth();
|
|
}
|
|
|
|
b3GridClothMesh<10, 10> m_clothMesh;
|
|
b3Cloth* m_cloth;
|
|
b3ClothDragger* m_clothDragger;
|
|
};
|
|
|
|
#endif |