128 lines
2.8 KiB
C++
128 lines
2.8 KiB
C++
/*
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* Copyright (c) 2016-2019 Irlan Robson https://irlanrobson.github.io
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef SHEET_STACK_H
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#define SHEET_STACK_H
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class SheetStack : public Test
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{
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public:
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enum
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{
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e_h = 5,
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e_w = 1,
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e_d = 1
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};
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SheetStack()
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{
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{
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b3BodyDef bdef;
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b3Body* body = m_world.CreateBody(bdef);
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b3HullShape hs;
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hs.m_hull = &m_groundHull;
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b3ShapeDef sdef;
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sdef.shape = &hs;
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sdef.friction = 1.0f;
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body->CreateShape(sdef);
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}
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b3Vec3 e(4.0f, 2.0f * B3_LINEAR_SLOP, 4.0f);
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m_boxHull.SetExtents(e.x, e.y, e.z);
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b3Vec3 separation;
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separation.x = 1.0f;
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separation.y = 1.0f;
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separation.z = 1.0f;
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b3Vec3 scale;
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scale.x = 2.0f * e.x + separation.x;
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scale.y = 2.0f * e.y + separation.y;
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scale.z = 2.0f * e.z + separation.z;
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b3Vec3 size;
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size.x = 2.0f * e.x + scale.x * scalar(e_w - 1);
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size.y = 2.0f * e.y + scale.y * scalar(e_h - 1);
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size.z = 2.0f * e.z + scale.z * scalar(e_d - 1);
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b3Vec3 translation;
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translation.x = e.x - 0.5f * size.x;
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translation.y = e.y - 0.5f * size.y;
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translation.z = e.z - 0.5f * size.z;
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translation.y += 9.0f;
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for (u32 i = 0; i < e_h; ++i)
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{
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for (u32 j = 0; j < e_w; ++j)
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{
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for (u32 k = 0; k < e_d; ++k)
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{
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b3BodyDef bdef;
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bdef.type = e_dynamicBody;
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bdef.position.Set(scalar(j), scalar(i), scalar(k));
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bdef.position.x *= scale.x;
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bdef.position.y *= scale.y;
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bdef.position.z *= scale.z;
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bdef.position += translation;
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b3Body* body = m_world.CreateBody(bdef);
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b3HullShape hs;
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hs.m_hull = &m_boxHull;
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b3ShapeDef sdef;
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sdef.density = 0.1f;
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sdef.friction = 0.3f;
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sdef.shape = &hs;
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body->CreateShape(sdef);
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u32 bodyIndex = GetBodyIndex(i, j, k);
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m_bodies[bodyIndex] = body;
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}
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}
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}
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}
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u32 GetBodyIndex(u32 i, u32 j, u32 k)
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{
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B3_ASSERT(i < e_h);
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B3_ASSERT(j < e_w);
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B3_ASSERT(k < e_d);
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return k + e_d * (j + e_w * i);
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}
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static Test* Create()
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{
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return new SheetStack();
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}
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b3BoxHull m_boxHull;
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b3Body* m_bodies[e_h * e_w * e_d];
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};
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#endif |