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

2020-01-25 12:31:05 +00:00
parent f87e2a6378
commit a61262407c
431 changed files with 108959 additions and 26372 deletions
--- a/examples/testbed/tests/sheet.h
+++ b/examples/testbed/tests/sheet.h
@@ -0,0 +1,136 @@
+/*
+* 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 SHEET_H
+#define SHEET_H
+
+class Sheet : public Test
+{
+public:
+	enum
+	{
+		e_w = 10,
+		e_h = 1,
+		e_d = 10
+	};
+
+	Sheet()
+	{
+		// Downscale the block along the y axis
+		for (u32 i = 0; i < m_mesh.vertexCount; ++i)
+		{
+			m_mesh.vertices[i].y *= 0.5f;
+		}
+
+		// Create soft body
+		b3SoftBodyDef def;
+		def.mesh = &m_mesh;
+		def.density = 0.3f;
+		def.E = 200.0f;
+		def.nu = 0.3f;
+
+		m_body = new b3SoftBody(def);
+
+		b3Vec3 gravity(0.0f, -9.8f, 0.0f);
+		m_body->SetGravity(gravity);
+
+		for (u32 j = 0; j < e_w + 1; ++j)
+		{
+				u32 v = m_mesh.GetVertex(0, j, 0);
+
+				b3SoftBodyNode* n = m_body->GetNode(v);
+				n->SetType(e_staticSoftBodyNode);
+		}
+
+		m_bodyDragger = new b3SoftBodyDragger(&m_ray, m_body);
+	}
+
+	~Sheet()
+	{
+		delete m_bodyDragger;
+		delete m_body;
+	}
+
+	void Step()
+	{
+		Test::Step();
+
+		if (m_bodyDragger->IsDragging())
+		{
+			m_bodyDragger->Drag();
+		}
+
+		m_body->Step(g_testSettings->inv_hertz, g_testSettings->velocityIterations, g_testSettings->positionIterations);
+
+		m_body->Draw();
+
+		if (m_bodyDragger->IsDragging())
+		{
+			b3Vec3 pA = m_bodyDragger->GetPointA();
+			b3Vec3 pB = m_bodyDragger->GetPointB();
+
+			g_draw->DrawPoint(pA, 4.0f, b3Color_green);
+
+			g_draw->DrawPoint(pB, 4.0f, b3Color_green);
+
+			g_draw->DrawSegment(pA, pB, b3Color_white);
+		}
+
+		extern u32 b3_softBodySolverIterations;
+		g_draw->DrawString(b3Color_white, "Iterations = %d", b3_softBodySolverIterations);
+
+		scalar E = m_body->GetEnergy();
+		g_draw->DrawString(b3Color_white, "E = %f", E);
+	}
+
+	void MouseMove(const b3Ray3& pw)
+	{
+		Test::MouseMove(pw);
+	}
+
+	void MouseLeftDown(const b3Ray3& pw)
+	{
+		Test::MouseLeftDown(pw);
+
+		if (m_bodyDragger->IsDragging() == false)
+		{
+			m_bodyDragger->StartDragging();
+		}
+	}
+
+	void MouseLeftUp(const b3Ray3& pw)
+	{
+		Test::MouseLeftUp(pw);
+
+		if (m_bodyDragger->IsDragging() == true)
+		{
+			m_bodyDragger->StopDragging();
+		}
+	}
+
+	static Test* Create()
+	{
+		return new Sheet();
+	}
+
+	b3BlockSoftBodyMesh<e_w, e_h, e_d> m_mesh;
+	b3SoftBody* m_body;
+	b3SoftBodyDragger* m_bodyDragger;
+};
+
+#endif