/* * Copyright (c) 2006-2009 Erin Catto http://www.gphysics.com * * 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 PYRAMID_H #define PYRAMID_H class Pyramid : public Test { public: enum { e_count = 20, }; Pyramid() { { b2BodyDef bd; b2Body* ground = m_world->CreateBody(&bd); b2PolygonShape shape; shape.SetAsEdge(b2Vec2(-40.0f, 0.0f), b2Vec2(40.0f, 0.0f)); ground->CreateFixture(&shape, 0.0f); } { float32 a = 0.5f; b2PolygonShape shape; shape.SetAsBox(a, a); b2Vec2 x(-7.0f, 0.75f); b2Vec2 y; b2Vec2 deltaX(0.5625f, 1.25f); b2Vec2 deltaY(1.125f, 0.0f); for (int i = 0; i < e_count; ++i) { y = x; for (int j = i; j < e_count; ++j) { b2BodyDef bd; bd.type = b2_dynamicBody; bd.position = y; b2Body* body = m_world->CreateBody(&bd); body->CreateFixture(&shape, 5.0f); y += deltaY; } x += deltaX; } } } //void Step(Settings* settings) //{ // // We need higher accuracy for the pyramid. // int velocityIterations = settings->velocityIterations; // int positionIterations = settings->positionIterations; // settings->velocityIterations = b2Max(8, velocityIterations); // settings->positionIterations = b2Max(1, positionIterations); // Test::Step(settings); // settings->velocityIterations = velocityIterations; // settings->positionIterations = positionIterations; //} static Test* Create() { return new Pyramid; } }; #endif