ShapeEditing.h
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上传日期:2022-01-07
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- /*
- * Copyright (c) 2008-2009 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 SHAPE_EDITING_H
- #define SHAPE_EDITING_H
- class ShapeEditing : public Test
- {
- public:
- ShapeEditing()
- {
- {
- 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);
- }
- b2BodyDef bd;
- bd.type = b2_dynamicBody;
- bd.position.Set(0.0f, 10.0f);
- m_body = m_world->CreateBody(&bd);
- b2PolygonShape shape;
- shape.SetAsBox(4.0f, 4.0f, b2Vec2(0.0f, 0.0f), 0.0f);
- m_fixture1 = m_body->CreateFixture(&shape, 10.0f);
- m_fixture2 = NULL;
- }
- void Keyboard(unsigned char key)
- {
- switch (key)
- {
- case 'c':
- if (m_fixture2 == NULL)
- {
- b2CircleShape shape;
- shape.m_radius = 3.0f;
- shape.m_p.Set(0.5f, -4.0f);
- m_fixture2 = m_body->CreateFixture(&shape, 10.0f);
- m_body->SetAwake(true);
- }
- break;
- case 'd':
- if (m_fixture2 != NULL)
- {
- m_body->DestroyFixture(m_fixture2);
- m_fixture2 = NULL;
- m_body->SetAwake(true);
- }
- break;
- }
- }
- void Step(Settings* settings)
- {
- Test::Step(settings);
- m_debugDraw.DrawString(5, m_textLine, "Press: (c) create a shape, (d) destroy a shape.");
- m_textLine += 15;
- }
- static Test* Create()
- {
- return new ShapeEditing;
- }
- b2Body* m_body;
- b2Fixture* m_fixture1;
- b2Fixture* m_fixture2;
- };
- #endif