1 /* 2 * Copyright (c) 2006-2009 Erin Catto http://www.box2d.org 3 * 4 * This software is provided 'as-is', without any express or implied 5 * warranty. In no event will the authors be held liable for any damages 6 * arising from the use of this software. 7 * Permission is granted to anyone to use this software for any purpose, 8 * including commercial applications, and to alter it and redistribute it 9 * freely, subject to the following restrictions: 10 * 1. The origin of this software must not be misrepresented; you must not 11 * claim that you wrote the original software. If you use this software 12 * in a product, an acknowledgment in the product documentation would be 13 * appreciated but is not required. 14 * 2. Altered source versions must be plainly marked as such, and must not be 15 * misrepresented as being the original software. 16 * 3. This notice may not be removed or altered from any source distribution. 17 */ 18 19 #ifndef BULLET_TEST_H 20 #define BULLET_TEST_H 21 22 class BulletTest : public Test 23 { 24 public: 25 BulletTest()26 BulletTest() 27 { 28 { 29 b2BodyDef bd; 30 bd.position.Set(0.0f, 0.0f); 31 b2Body* body = m_world->CreateBody(&bd); 32 33 b2EdgeShape edge; 34 35 edge.Set(b2Vec2(-10.0f, 0.0f), b2Vec2(10.0f, 0.0f)); 36 body->CreateFixture(&edge, 0.0f); 37 38 b2PolygonShape shape; 39 shape.SetAsBox(0.2f, 1.0f, b2Vec2(0.5f, 1.0f), 0.0f); 40 body->CreateFixture(&shape, 0.0f); 41 } 42 43 { 44 b2BodyDef bd; 45 bd.type = b2_dynamicBody; 46 bd.position.Set(0.0f, 4.0f); 47 48 b2PolygonShape box; 49 box.SetAsBox(2.0f, 0.1f); 50 51 m_body = m_world->CreateBody(&bd); 52 m_body->CreateFixture(&box, 1.0f); 53 54 box.SetAsBox(0.25f, 0.25f); 55 56 //m_x = RandomFloat(-1.0f, 1.0f); 57 m_x = 0.20352793f; 58 bd.position.Set(m_x, 10.0f); 59 bd.bullet = true; 60 61 m_bullet = m_world->CreateBody(&bd); 62 m_bullet->CreateFixture(&box, 100.0f); 63 64 m_bullet->SetLinearVelocity(b2Vec2(0.0f, -50.0f)); 65 } 66 } 67 Launch()68 void Launch() 69 { 70 m_body->SetTransform(b2Vec2(0.0f, 4.0f), 0.0f); 71 m_body->SetLinearVelocity(b2Vec2_zero); 72 m_body->SetAngularVelocity(0.0f); 73 74 m_x = RandomFloat(-1.0f, 1.0f); 75 m_bullet->SetTransform(b2Vec2(m_x, 10.0f), 0.0f); 76 m_bullet->SetLinearVelocity(b2Vec2(0.0f, -50.0f)); 77 m_bullet->SetAngularVelocity(0.0f); 78 79 extern int32 b2_gjkCalls, b2_gjkIters, b2_gjkMaxIters; 80 extern int32 b2_toiCalls, b2_toiIters, b2_toiMaxIters; 81 extern int32 b2_toiRootIters, b2_toiMaxRootIters; 82 83 b2_gjkCalls = 0; 84 b2_gjkIters = 0; 85 b2_gjkMaxIters = 0; 86 87 b2_toiCalls = 0; 88 b2_toiIters = 0; 89 b2_toiMaxIters = 0; 90 b2_toiRootIters = 0; 91 b2_toiMaxRootIters = 0; 92 } 93 Step(Settings * settings)94 void Step(Settings* settings) 95 { 96 Test::Step(settings); 97 98 extern int32 b2_gjkCalls, b2_gjkIters, b2_gjkMaxIters; 99 extern int32 b2_toiCalls, b2_toiIters; 100 extern int32 b2_toiRootIters, b2_toiMaxRootIters; 101 102 if (b2_gjkCalls > 0) 103 { 104 m_debugDraw.DrawString(5, m_textLine, "gjk calls = %d, ave gjk iters = %3.1f, max gjk iters = %d", 105 b2_gjkCalls, b2_gjkIters / float32(b2_gjkCalls), b2_gjkMaxIters); 106 m_textLine += 15; 107 } 108 109 if (b2_toiCalls > 0) 110 { 111 m_debugDraw.DrawString(5, m_textLine, "toi calls = %d, ave toi iters = %3.1f, max toi iters = %d", 112 b2_toiCalls, b2_toiIters / float32(b2_toiCalls), b2_toiMaxRootIters); 113 m_textLine += 15; 114 115 m_debugDraw.DrawString(5, m_textLine, "ave toi root iters = %3.1f, max toi root iters = %d", 116 b2_toiRootIters / float32(b2_toiCalls), b2_toiMaxRootIters); 117 m_textLine += 15; 118 } 119 120 if (m_stepCount % 60 == 0) 121 { 122 Launch(); 123 } 124 } 125 Create()126 static Test* Create() 127 { 128 return new BulletTest; 129 } 130 131 b2Body* m_body; 132 b2Body* m_bullet; 133 float32 m_x; 134 }; 135 136 #endif 137