VaryingRestitution.h
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上传日期:2022-01-07
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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 VARYING_RESTITUTION_H
- #define VARYING_RESTITUTION_H
- class VaryingRestitution : public Test
- {
- public:
- VaryingRestitution()
- {
- {
- 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);
- }
- {
- b2CircleShape shape;
- shape.m_radius = 1.0f;
- b2FixtureDef fd;
- fd.shape = &shape;
- fd.density = 1.0f;
- float32 restitution[7] = {0.0f, 0.1f, 0.3f, 0.5f, 0.75f, 0.9f, 1.0f};
- for (int32 i = 0; i < 7; ++i)
- {
- b2BodyDef bd;
- bd.type = b2_dynamicBody;
- bd.position.Set(-10.0f + 3.0f * i, 20.0f);
- b2Body* body = m_world->CreateBody(&bd);
- fd.restitution = restitution[i];
- body->CreateFixture(&fd);
- }
- }
- }
- static Test* Create()
- {
- return new VaryingRestitution;
- }
- };
- #endif