mirror of https://github.com/axmolengine/axmol.git
123 lines
3.0 KiB
C++
123 lines
3.0 KiB
C++
/*
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* Copyright (c) 2006-2009 Erin Catto http://www.gphysics.com
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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 POLYCOLLISION_H
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#define POLYCOLLISION_H
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class PolyCollision : public Test
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{
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public:
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PolyCollision()
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{
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{
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m_polygonA.SetAsEdge(b2Vec2(20.0f, 0.0f), b2Vec2(20.0f, 20.0f));
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m_transformA.Set(b2Vec2(0.0f, 0.0f), 0.0f);
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}
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{
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m_polygonB.SetAsBox(0.5f, 0.5f);
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m_positionB.Set(19.345284f, 1.5632932f);
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m_angleB = 1.9160721f;
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m_transformB.Set(m_positionB, m_angleB);
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}
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}
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static Test* Create()
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{
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return new PolyCollision;
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}
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void Step(Settings* settings)
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{
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B2_NOT_USED(settings);
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b2Manifold manifold;
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b2CollidePolygons(&manifold, &m_polygonA, m_transformA, &m_polygonB, m_transformB);
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b2WorldManifold worldManifold;
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worldManifold.Initialize(&manifold, m_transformA, m_polygonA.m_radius, m_transformB, m_polygonB.m_radius);
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m_debugDraw.DrawString(5, m_textLine, "point count = %d", manifold.pointCount);
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m_textLine += 15;
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{
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b2Color color(0.9f, 0.9f, 0.9f);
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b2Vec2 v[b2_maxPolygonVertices];
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for (int i = 0; i < m_polygonA.m_vertexCount; ++i)
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{
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v[i] = b2Mul(m_transformA, m_polygonA.m_vertices[i]);
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}
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m_debugDraw.DrawPolygon(v, m_polygonA.m_vertexCount, color);
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for (int i = 0; i < m_polygonB.m_vertexCount; ++i)
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{
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v[i] = b2Mul(m_transformB, m_polygonB.m_vertices[i]);
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}
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m_debugDraw.DrawPolygon(v, m_polygonB.m_vertexCount, color);
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}
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for (int i = 0; i < manifold.pointCount; ++i)
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{
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m_debugDraw.DrawPoint(worldManifold.points[i], 4.0f, b2Color(0.9f, 0.3f, 0.3f));
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}
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}
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void Keyboard(unsigned char key)
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{
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switch (key)
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{
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case 'a':
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m_positionB.x -= 0.1f;
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break;
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case 'd':
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m_positionB.x += 0.1f;
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break;
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case 's':
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m_positionB.y -= 0.1f;
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break;
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case 'w':
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m_positionB.y += 0.1f;
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break;
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case 'q':
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m_angleB += 0.1f * b2_pi;
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break;
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case 'e':
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m_angleB -= 0.1f * b2_pi;
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break;
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}
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m_transformB.Set(m_positionB, m_angleB);
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}
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b2PolygonShape m_polygonA;
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b2PolygonShape m_polygonB;
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b2Transform m_transformA;
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b2Transform m_transformB;
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b2Vec2 m_positionB;
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float32 m_angleB;
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};
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#endif
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