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+// MIT License
+
+// Copyright (c) 2019 Erin Catto
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#include "test.h"
+#include "imgui/imgui.h"
+
+class CompoundShapes : public Test
+{
+public:
+ CompoundShapes()
+ {
+ {
+ b2BodyDef bd;
+ bd.position.Set(0.0f, 0.0f);
+ b2Body* body = m_world->CreateBody(&bd);
+
+ b2EdgeShape shape;
+ shape.SetTwoSided(b2Vec2(50.0f, 0.0f), b2Vec2(-50.0f, 0.0f));
+
+ body->CreateFixture(&shape, 0.0f);
+ }
+
+ // Table 1
+ {
+ b2BodyDef bd;
+ bd.type = b2_dynamicBody;
+ bd.position.Set(-15.0f, 1.0f);
+ m_table1 = m_world->CreateBody(&bd);
+
+ b2PolygonShape top;
+ top.SetAsBox(3.0f, 0.5f, b2Vec2(0.0f, 3.5f), 0.0f);
+
+ b2PolygonShape leftLeg;
+ leftLeg.SetAsBox(0.5f, 1.5f, b2Vec2(-2.5f, 1.5f), 0.0f);
+
+ b2PolygonShape rightLeg;
+ rightLeg.SetAsBox(0.5f, 1.5f, b2Vec2(2.5f, 1.5f), 0.0f);
+
+ m_table1->CreateFixture(&top, 2.0f);
+ m_table1->CreateFixture(&leftLeg, 2.0f);
+ m_table1->CreateFixture(&rightLeg, 2.0f);
+ }
+
+ // Table 2
+ {
+ b2BodyDef bd;
+ bd.type = b2_dynamicBody;
+ bd.position.Set(-5.0f, 1.0f);
+ m_table2 = m_world->CreateBody(&bd);
+
+ b2PolygonShape top;
+ top.SetAsBox(3.0f, 0.5f, b2Vec2(0.0f, 3.5f), 0.0f);
+
+ b2PolygonShape leftLeg;
+ leftLeg.SetAsBox(0.5f, 2.0f, b2Vec2(-2.5f, 2.0f), 0.0f);
+
+ b2PolygonShape rightLeg;
+ rightLeg.SetAsBox(0.5f, 2.0f, b2Vec2(2.5f, 2.0f), 0.0f);
+
+ m_table2->CreateFixture(&top, 2.0f);
+ m_table2->CreateFixture(&leftLeg, 2.0f);
+ m_table2->CreateFixture(&rightLeg, 2.0f);
+ }
+
+ // Spaceship 1
+ {
+ b2BodyDef bd;
+ bd.type = b2_dynamicBody;
+ bd.position.Set(5.0f, 1.0f);
+ m_ship1 = m_world->CreateBody(&bd);
+
+ b2Vec2 vertices[3];
+
+ b2PolygonShape left;
+ vertices[0].Set(-2.0f, 0.0f);
+ vertices[1].Set(0.0f, 4.0f / 3.0f);
+ vertices[2].Set(0.0f, 4.0f);
+ left.Set(vertices, 3);
+
+ b2PolygonShape right;
+ vertices[0].Set(2.0f, 0.0f);
+ vertices[1].Set(0.0f, 4.0f / 3.0f);
+ vertices[2].Set(0.0f, 4.0f);
+ right.Set(vertices, 3);
+
+ m_ship1->CreateFixture(&left, 2.0f);
+ m_ship1->CreateFixture(&right, 2.0f);
+ }
+
+ // Spaceship 2
+ {
+ b2BodyDef bd;
+ bd.type = b2_dynamicBody;
+ bd.position.Set(15.0f, 1.0f);
+ m_ship2 = m_world->CreateBody(&bd);
+
+ b2Vec2 vertices[3];
+
+ b2PolygonShape left;
+ vertices[0].Set(-2.0f, 0.0f);
+ vertices[1].Set(1.0f, 2.0f);
+ vertices[2].Set(0.0f, 4.0f);
+ left.Set(vertices, 3);
+
+ b2PolygonShape right;
+ vertices[0].Set(2.0f, 0.0f);
+ vertices[1].Set(-1.0f, 2.0f);
+ vertices[2].Set(0.0f, 4.0f);
+ right.Set(vertices, 3);
+
+ m_ship2->CreateFixture(&left, 2.0f);
+ m_ship2->CreateFixture(&right, 2.0f);
+ }
+ }
+
+ void Spawn()
+ {
+ // Table 1 obstruction
+ {
+ b2BodyDef bd;
+ bd.type = b2_dynamicBody;
+ bd.position = m_table1->GetPosition();
+ bd.angle = m_table1->GetAngle();
+
+ b2Body* body = m_world->CreateBody(&bd);
+
+ b2PolygonShape box;
+ box.SetAsBox(4.0f, 0.1f, b2Vec2(0.0f, 3.0f), 0.0f);
+
+ body->CreateFixture(&box, 2.0f);
+ }
+
+ // Table 2 obstruction
+ {
+ b2BodyDef bd;
+ bd.type = b2_dynamicBody;
+ bd.position = m_table2->GetPosition();
+ bd.angle = m_table2->GetAngle();
+
+ b2Body* body = m_world->CreateBody(&bd);
+
+ b2PolygonShape box;
+ box.SetAsBox(4.0f, 0.1f, b2Vec2(0.0f, 3.0f), 0.0f);
+
+ body->CreateFixture(&box, 2.0f);
+ }
+
+ // Ship 1 obstruction
+ {
+ b2BodyDef bd;
+ bd.type = b2_dynamicBody;
+ bd.position = m_ship1->GetPosition();
+ bd.angle = m_ship1->GetAngle();
+ bd.gravityScale = 0.0f;
+
+ b2Body* body = m_world->CreateBody(&bd);
+
+ b2CircleShape circle;
+ circle.m_radius = 0.5f;
+ circle.m_p.Set(0.0f, 2.0f);
+
+ body->CreateFixture(&circle, 2.0f);
+ }
+
+ // Ship 2 obstruction
+ {
+ b2BodyDef bd;
+ bd.type = b2_dynamicBody;
+ bd.position = m_ship2->GetPosition();
+ bd.angle = m_ship2->GetAngle();
+ bd.gravityScale = 0.0f;
+
+ b2Body* body = m_world->CreateBody(&bd);
+
+ b2CircleShape circle;
+ circle.m_radius = 0.5f;
+ circle.m_p.Set(0.0f, 2.0f);
+
+ body->CreateFixture(&circle, 2.0f);
+ }
+ }
+
+ void UpdateUI() override
+ {
+ ImGui::SetNextWindowPos(ImVec2(10.0f, 100.0f));
+ ImGui::SetNextWindowSize(ImVec2(200.0f, 100.0f));
+ ImGui::Begin("Controls", nullptr, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize);
+
+ if (ImGui::Button("Spawn"))
+ {
+ Spawn();
+ }
+
+ ImGui::End();
+ }
+
+ static Test* Create()
+ {
+ return new CompoundShapes;
+ }
+
+ b2Body* m_table1;
+ b2Body* m_table2;
+ b2Body* m_ship1;
+ b2Body* m_ship2;
+};
+
+static int testIndex = RegisterTest("Examples", "Compound Shapes", CompoundShapes::Create);