CompoundShapes.h
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- /*
- * 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 COMPOUND_SHAPES_H
- #define COMPOUND_SHAPES_H
- // TODO_ERIN test joints on compounds.
- class CompoundShapes : public Test
- {
- public:
- CompoundShapes()
- {
- {
- b2BodyDef bd;
- bd.position.Set(0.0f, 0.0f);
- b2Body* body = m_world->CreateBody(&bd);
- b2PolygonShape shape;
- shape.SetAsEdge(b2Vec2(50.0f, 0.0f), b2Vec2(-50.0f, 0.0f));
- body->CreateFixture(&shape, 0.0f);
- }
- {
- b2CircleShape circle1;
- circle1.m_radius = 0.5f;
- circle1.m_p.Set(-0.5f, 0.5f);
- b2CircleShape circle2;
- circle2.m_radius = 0.5f;
- circle2.m_p.Set(0.5f, 0.5f);
- for (int i = 0; i < 10; ++i)
- {
- float32 x = RandomFloat(-0.1f, 0.1f);
- b2BodyDef bd;
- bd.type = b2_dynamicBody;
- bd.position.Set(x + 5.0f, 1.05f + 2.5f * i);
- bd.angle = RandomFloat(-b2_pi, b2_pi);
- b2Body* body = m_world->CreateBody(&bd);
- body->CreateFixture(&circle1, 2.0f);
- body->CreateFixture(&circle2, 0.0f);
- }
- }
- {
- b2PolygonShape polygon1;
- polygon1.SetAsBox(0.25f, 0.5f);
- b2PolygonShape polygon2;
- polygon2.SetAsBox(0.25f, 0.5f, b2Vec2(0.0f, -0.5f), 0.5f * b2_pi);
- for (int i = 0; i < 10; ++i)
- {
- float32 x = RandomFloat(-0.1f, 0.1f);
- b2BodyDef bd;
- bd.type = b2_dynamicBody;
- bd.position.Set(x - 5.0f, 1.05f + 2.5f * i);
- bd.angle = RandomFloat(-b2_pi, b2_pi);
- b2Body* body = m_world->CreateBody(&bd);
- body->CreateFixture(&polygon1, 2.0f);
- body->CreateFixture(&polygon2, 2.0f);
- }
- }
- {
- b2Transform xf1;
- xf1.R.Set(0.3524f * b2_pi);
- xf1.position = b2Mul(xf1.R, b2Vec2(1.0f, 0.0f));
- b2Vec2 vertices[3];
- b2PolygonShape triangle1;
- vertices[0] = b2Mul(xf1, b2Vec2(-1.0f, 0.0f));
- vertices[1] = b2Mul(xf1, b2Vec2(1.0f, 0.0f));
- vertices[2] = b2Mul(xf1, b2Vec2(0.0f, 0.5f));
- triangle1.Set(vertices, 3);
- b2Transform xf2;
- xf2.R.Set(-0.3524f * b2_pi);
- xf2.position = b2Mul(xf2.R, b2Vec2(-1.0f, 0.0f));
- b2PolygonShape triangle2;
- vertices[0] = b2Mul(xf2, b2Vec2(-1.0f, 0.0f));
- vertices[1] = b2Mul(xf2, b2Vec2(1.0f, 0.0f));
- vertices[2] = b2Mul(xf2, b2Vec2(0.0f, 0.5f));
- triangle2.Set(vertices, 3);
- for (int32 i = 0; i < 10; ++i)
- {
- float32 x = RandomFloat(-0.1f, 0.1f);
- b2BodyDef bd;
- bd.type = b2_dynamicBody;
- bd.position.Set(x, 2.05f + 2.5f * i);
- bd.angle = 0.0f;
- b2Body* body = m_world->CreateBody(&bd);
- body->CreateFixture(&triangle1, 2.0f);
- body->CreateFixture(&triangle2, 2.0f);
- }
- }
- {
- b2PolygonShape bottom;
- bottom.SetAsBox( 1.5f, 0.15f );
- b2PolygonShape left;
- left.SetAsBox(0.15f, 2.7f, b2Vec2(-1.45f, 2.35f), 0.2f);
- b2PolygonShape right;
- right.SetAsBox(0.15f, 2.7f, b2Vec2(1.45f, 2.35f), -0.2f);
- b2BodyDef bd;
- bd.type = b2_dynamicBody;
- bd.position.Set( 0.0f, 2.0f );
- b2Body* body = m_world->CreateBody(&bd);
- body->CreateFixture(&bottom, 4.0f);
- body->CreateFixture(&left, 4.0f);
- body->CreateFixture(&right, 4.0f);
- }
- }
- static Test* Create()
- {
- return new CompoundShapes;
- }
- };
- #endif