File: SphereStack.h

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/*
* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
*
* 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 SPHERE_STACK_H
#define SPHERE_STACK_H

class SphereStack : public Test
{
public:

    enum
    {
        e_count = 10
    };

    SphereStack()
    {
        {
            b2BodyDef bd;
            b2Body* ground = m_world->CreateBody(&bd);

            b2EdgeShape shape;
            shape.Set(b2Vec2(-40.0f, 0.0f), b2Vec2(40.0f, 0.0f));
            ground->CreateFixture(&shape, 0.0f);
        }

        {
            b2CircleShape shape;
            shape.m_radius = 1.0f;

            for (int32 i = 0; i < e_count; ++i)
            {
                b2BodyDef bd;
                bd.type = b2_dynamicBody;
                bd.position.Set(0.0, 4.0f + 3.0f * i);

                m_bodies[i] = m_world->CreateBody(&bd);

                m_bodies[i]->CreateFixture(&shape, 1.0f);

                m_bodies[i]->SetLinearVelocity(b2Vec2(0.0f, -50.0f));
            }
        }
    }

    void Step(Settings* settings)
    {
        Test::Step(settings);

        //for (int32 i = 0; i < e_count; ++i)
        //{
        //  printf("%g ", m_bodies[i]->GetWorldCenter().y);
        //}

        //for (int32 i = 0; i < e_count; ++i)
        //{
        //  printf("%g ", m_bodies[i]->GetLinearVelocity().y);
        //}

        //printf("\n");
    }

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

    b2Body* m_bodies[e_count];
};

#endif