axmol/samples/Cpp/TestCpp/Classes/Box2DTestBed/Tests/AddPair.h

#ifndef AddPair_H
#define AddPair_H

class AddPair : public Test
{
public:

    AddPair()
    {
        m_world->SetGravity(b2Vec2(0.0f,0.0f));
        {
            b2CircleShape shape;
            shape.m_p.SetZero();
            shape.m_radius = 0.1f;

            float minX = -6.0f;
            float maxX = 0.0f;
            float minY = 4.0f;
            float maxY = 6.0f;
            
            for (int32 i = 0; i < 400; ++i)
            {
                b2BodyDef bd;
                bd.type = b2_dynamicBody;
                bd.position = b2Vec2(RandomFloat(minX,maxX),RandomFloat(minY,maxY));
                b2Body* body = m_world->CreateBody(&bd);
                body->CreateFixture(&shape, 0.01f);
            }
        }
        
        {
            b2PolygonShape shape;
            shape.SetAsBox(1.5f, 1.5f);
            b2BodyDef bd;
            bd.type = b2_dynamicBody;
            bd.position.Set(-40.0f,5.0f);
            bd.bullet = true;
            b2Body* body = m_world->CreateBody(&bd);
            body->CreateFixture(&shape, 1.0f);
            body->SetLinearVelocity(b2Vec2(150.0f, 0.0f));
        }
    }

    static Test* Create()
    {
        return new AddPair;
    }
};

#endif