Added Box2D
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Julian Nießner
260
external/Box2D-2.3.1/Contributions/Tests/ContactCallbackTest.h
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260
external/Box2D-2.3.1/Contributions/Tests/ContactCallbackTest.h
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/*
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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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// Contributed by caspin.
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#ifndef CONTACT_CB_H
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#define CONTACT_CB_H
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#include <set>
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#include <deque>
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#include <sstream>
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#include <string>
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#include <iostream>
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bool key_comp( const ContactPoint& lhs, const ContactPoint& rhs )
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{
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if( lhs.fixtureA < rhs.fixtureA ) return true;
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if( lhs.fixtureA == rhs.fixtureA && lhs.fixtureB < rhs.fixtureB ) return true;
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if( lhs.fixtureA == rhs.fixtureA && lhs.fixtureB == rhs.fixtureB && lhs.id.key < rhs.id.key ) return true;
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return false;
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}
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class ContactCB : public Test
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{
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public:
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ContactCB()
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: m_set(&key_comp)
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{
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b2PolygonDef sd;
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sd.friction = 0;
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sd.vertexCount = 3;
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sd.vertices[0].Set(10,10);
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sd.vertices[1].Set(9,7);
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sd.vertices[2].Set(10,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[0].Set(9,7);
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sd.vertices[1].Set(8,0);
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sd.vertices[2].Set(10,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[0].Set(9,7);
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sd.vertices[1].Set(8,5);
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sd.vertices[2].Set(8,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[0].Set(8,5);
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sd.vertices[1].Set(7,4);
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sd.vertices[2].Set(8,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[0].Set(7,4);
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sd.vertices[1].Set(5,0);
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sd.vertices[2].Set(8,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[0].Set(7,4);
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sd.vertices[1].Set(5,3);
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sd.vertices[2].Set(5,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[0].Set(5,3);
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sd.vertices[1].Set(2,2);
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sd.vertices[2].Set(5,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[0].Set(2,2);
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sd.vertices[1].Set(0,0);
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sd.vertices[2].Set(5,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[0].Set(2,2);
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sd.vertices[1].Set(-2,2);
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sd.vertices[2].Set(0,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[2].Set(-2,2);
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sd.vertices[1].Set(0,0);
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sd.vertices[0].Set(-5,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[2].Set(-5,3);
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sd.vertices[1].Set(-2,2);
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sd.vertices[0].Set(-5,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[2].Set(-7,4);
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sd.vertices[1].Set(-5,3);
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sd.vertices[0].Set(-5,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[2].Set(-7,4);
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sd.vertices[1].Set(-5,0);
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sd.vertices[0].Set(-8,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[2].Set(-8,5);
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sd.vertices[1].Set(-7,4);
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sd.vertices[0].Set(-8,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[2].Set(-9,7);
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sd.vertices[1].Set(-8,5);
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sd.vertices[0].Set(-8,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[2].Set(-9,7);
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sd.vertices[1].Set(-8,0);
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sd.vertices[0].Set(-10,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.vertices[2].Set(-10,10);
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sd.vertices[1].Set(-9,7);
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sd.vertices[0].Set(-10,0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.SetAsBox(.5,6,b2Vec2(10.5,6),0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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sd.SetAsBox(.5,6,b2Vec2(-10.5,6),0);
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m_world->GetGroundBody()->CreateFixture(&sd);
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b2BodyDef bd;
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bd.position.Set(9.5,60);
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b2Body* m_ball = m_world->CreateBody( &bd );
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#if 1
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b2PolygonDef cd;
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cd.vertexCount = 8;
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float32 w = 0.95f;
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float32 b = w / (2.0f + sqrtf(2.0f));
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float32 s = sqrtf(2.0f) * b;
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cd.vertices[0].Set(0.5f * s, 0.0f);
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cd.vertices[1].Set(0.5f * w, b);
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cd.vertices[2].Set(0.5f * w, b + s);
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cd.vertices[3].Set(0.5f * s, w);
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cd.vertices[4].Set(-0.5f * s, w);
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cd.vertices[5].Set(-0.5f * w, b + s);
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cd.vertices[6].Set(-0.5f * w, b);
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cd.vertices[7].Set(-0.5f * s, 0.0f);
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cd.density = 1.0f;
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#else
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b2CircleDef cd;
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cd.radius = 0.33f;
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cd.friction = 0;
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cd.density = 1;
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#endif
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m_ball_shape = m_ball->CreateFixture(&cd);
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m_ball->SetMassFromShapes();
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}
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void Step(Settings* settings)
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{
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Test::Step(settings);
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std::ostringstream oss;
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oss << std::hex;
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for (int32 i=0; i< m_pointCount; ++i)
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{
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#if 0
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if (m_points[i].shape1 > m_points[i].shape2)
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{
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b2Swap(m_points[i].shape1, m_points[i].shape2);
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m_points[i].normal *= -1.0f;
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m_points[i].velocity *= -1.0f;
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}
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#endif
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oss.str("");
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switch( m_points[i].state )
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{
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case e_contactAdded:
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{
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if( ! m_set.insert( m_points[i] ).second )
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{
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oss << "ERROR ";
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}
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else
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{
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oss << " ";
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}
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oss << "added: " << m_points[i].fixtureA << " -> " << m_points[i].fixtureB;
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oss << " : " << m_points[i].id.key;
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m_strings.push_back( oss.str() );
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std::cout << oss.str() << std::endl;
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break;
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}
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case e_contactRemoved:
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{
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if( m_set.find( m_points[i] ) == m_set.end() )
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{
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oss << "ERROR ";
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}
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else
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{
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oss << " ";
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}
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oss << "removed: " << m_points[i].fixtureA << " -> " << m_points[i].fixtureB;
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oss << " : " << m_points[i].id.key;
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m_strings.push_back( oss.str() );
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std::cout << oss.str() << std::endl;
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m_set.erase( m_points[i] );
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break;
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}
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case e_contactPersisted:
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{
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if( m_set.find( m_points[i] ) == m_set.end() )
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{
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oss << "ERROR persist: " << m_points[i].fixtureA << " -> ";
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oss << m_points[i].fixtureB << " : " << m_points[i].id.key;
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m_strings.push_back( oss.str() );
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std::cout << oss.str() << std::endl;
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}
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break;
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}
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}
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}
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while( m_strings.size() > 15 )
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{
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m_strings.pop_front();
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}
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for( unsigned i=0; i<m_strings.size(); ++i )
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{
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m_debugDraw.DrawString(5, m_textLine, m_strings[i].c_str() );
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m_textLine += 15;
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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 ContactCB;
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}
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b2Body* m_ball;
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b2Body* m_bullet;
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b2Fixture* m_ball_shape;
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std::set<ContactPoint,bool(*)(const ContactPoint&,const ContactPoint&)> m_set;
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std::deque<std::string> m_strings;
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};
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#endif // CONTACT_CB_H
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