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Apply changes from latest known public version of bounce dated 2019-11-13

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Luke Benstead
2020-01-25 12:31:05 +00:00
parent f87e2a6378
commit a61262407c
431 changed files with 108959 additions and 26372 deletions
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79
examples/testbed/tests/beam.h
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@@ -19,33 +19,34 @@
#ifndef BEAM_H
#define BEAM_H
#include <testbed/framework/softbody_dragger.h>
class Beam : public Test
{
public:
enum
{
e_w = 5,
e_h = 2,
e_d = 2
};
Beam()
{
m_E0 = 1000.0f;
m_E = m_E0;
// Create soft body
b3SoftBodyDef def;
def.mesh = &m_mesh;
def.density = 0.2f;
def.E = 1000.0f;
def.E = m_E0;
def.nu = 0.33f;
def.radius = 0.2f;
def.friction = 0.6f;
m_body = new b3SoftBody(def);
b3Vec3 gravity(0.0f, -9.8f, 0.0f);
m_body->SetGravity(gravity);
m_body->SetWorld(&m_world);
for (u32 i = 0; i < m_mesh.vertexCount; ++i)
{
b3SoftBodyNode* n = m_body->GetVertexNode(i);
n->SetRadius(0.05f);
n->SetFriction(0.2f);
}
// Create body
{
@@ -55,7 +56,7 @@ public:
b3Body* b = m_world.CreateBody(bd);
m_wallHull.Set(1.0f, 5.0f, 5.0f);
m_wallHull.SetExtents(1.0f, 5.0f, 5.0f);
b3HullShape wallShape;
wallShape.m_hull = &m_wallHull;
@@ -64,18 +65,20 @@ public:
sd.shape = &wallShape;
b3Shape* wall = b->CreateShape(sd);
b3SoftBodyWorldShapeDef ssd;
ssd.shape = wall;
m_body->CreateWorldShape(ssd);
}
b3AABB3 aabb;
aabb.m_lower.Set(-3.0f, -5.0f, -5.0f);
aabb.m_upper.Set(-2.0f, 5.0f, 5.0f);
for (u32 i = 0; i < m_mesh.vertexCount; ++i)
for (u32 i = 0; i < e_h + 1; ++i)
{
b3SoftBodyNode* n = m_body->GetVertexNode(i);
b3Vec3 p = n->GetPosition();
if (aabb.Contains(p))
for (u32 k = 0; k < e_d + 1; ++k)
{
u32 v = m_mesh.GetVertex(i, 0, k);
b3SoftBodyNode* n = m_body->GetNode(v);
n->SetType(e_staticSoftBodyNode);
}
}
@@ -107,9 +110,9 @@ public:
b3Vec3 pA = m_bodyDragger->GetPointA();
b3Vec3 pB = m_bodyDragger->GetPointB();
g_draw->DrawPoint(pA, 2.0f, b3Color_green);
g_draw->DrawPoint(pA, 4.0f, b3Color_green);
g_draw->DrawPoint(pB, 2.0f, b3Color_green);
g_draw->DrawPoint(pB, 4.0f, b3Color_green);
g_draw->DrawSegment(pA, pB, b3Color_white);
}
@@ -117,8 +120,10 @@ public:
extern u32 b3_softBodySolverIterations;
g_draw->DrawString(b3Color_white, "Iterations = %d", b3_softBodySolverIterations);
float32 E = m_body->GetEnergy();
scalar E = m_body->GetEnergy();
g_draw->DrawString(b3Color_white, "E = %f", E);
g_draw->DrawString(b3Color_white, "Up/Down - Young Modulus (%f)", m_E);
}
void MouseMove(const b3Ray3& pw)
@@ -146,13 +151,37 @@ public:
}
}
void KeyDown(int button)
{
if (button == GLFW_KEY_UP)
{
m_E = b3Clamp(m_E + scalar(10), scalar(0), m_E0);
for (u32 i = 0; i < m_mesh.tetrahedronCount; ++i)
{
m_body->GetElement(i)->SetE(m_E);
}
}
if (button == GLFW_KEY_DOWN)
{
m_E = b3Clamp(m_E - scalar(10), scalar(10), m_E0);
for (u32 i = 0; i < m_mesh.tetrahedronCount; ++i)
{
m_body->GetElement(i)->SetE(m_E);
}
}
}
static Test* Create()
{
return new Beam();
}
b3BlockSoftBodyMesh<5, 2, 2> m_mesh;
b3BlockSoftBodyMesh<e_w, e_h, e_d> m_mesh;
scalar m_E0;
scalar m_E;
b3SoftBody* m_body;
b3SoftBodyDragger* m_bodyDragger;