git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce

subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"

deps/juce/examples/Assets/Box2DTests/SensorTest.h

@@ -0,0 +1,181 @@
+/*
+* Copyright (c) 2008-2009 Erin Catto http://www.box2d.org
+*
+* 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 SENSOR_TEST_H
+#define SENSOR_TEST_H
+
+// This is used to test sensor shapes.
+class SensorTest : public Test
+{
+public:
+
+    enum
+    {
+        e_count = 7
+    };
+
+    SensorTest()
+    {
+        {
+            b2BodyDef bd;
+            b2Body* ground = m_world->CreateBody(&bd);
+
+            {
+                b2EdgeShape shape;
+                shape.Set(b2Vec2(-40.0f, 0.0f), b2Vec2(40.0f, 0.0f));
+                ground->CreateFixture(&shape, 0.0f);
+            }
+
+#if 0
+            {
+                b2FixtureDef sd;
+                sd.SetAsBox(10.0f, 2.0f, b2Vec2(0.0f, 20.0f), 0.0f);
+                sd.isSensor = true;
+                m_sensor = ground->CreateFixture(&sd);
+            }
+#else
+            {
+                b2CircleShape shape;
+                shape.m_radius = 5.0f;
+                shape.m_p.Set(0.0f, 10.0f);
+
+                b2FixtureDef fd;
+                fd.shape = &shape;
+                fd.isSensor = true;
+                m_sensor = ground->CreateFixture(&fd);
+            }
+#endif
+        }
+
+        {
+            b2CircleShape shape;
+            shape.m_radius = 1.0f;
+
+            for (int32 i = 0; i < e_count; ++i)
+            {
+                b2BodyDef bd;
+                bd.type = b2_dynamicBody;
+                bd.position.Set(-10.0f + 3.0f * i, 20.0f);
+                bd.userData = m_touching + i;
+
+                m_touching[i] = false;
+                m_bodies[i] = m_world->CreateBody(&bd);
+
+                m_bodies[i]->CreateFixture(&shape, 1.0f);
+            }
+        }
+    }
+
+    // Implement contact listener.
+    void BeginContact(b2Contact* contact)
+    {
+        b2Fixture* fixtureA = contact->GetFixtureA();
+        b2Fixture* fixtureB = contact->GetFixtureB();
+
+        if (fixtureA == m_sensor)
+        {
+            void* userData = fixtureB->GetBody()->GetUserData();
+            if (userData)
+            {
+                bool* touching = (bool*)userData;
+                *touching = true;
+            }
+        }
+
+        if (fixtureB == m_sensor)
+        {
+            void* userData = fixtureA->GetBody()->GetUserData();
+            if (userData)
+            {
+                bool* touching = (bool*)userData;
+                *touching = true;
+            }
+        }
+    }
+
+    // Implement contact listener.
+    void EndContact(b2Contact* contact)
+    {
+        b2Fixture* fixtureA = contact->GetFixtureA();
+        b2Fixture* fixtureB = contact->GetFixtureB();
+
+        if (fixtureA == m_sensor)
+        {
+            void* userData = fixtureB->GetBody()->GetUserData();
+            if (userData)
+            {
+                bool* touching = (bool*)userData;
+                *touching = false;
+            }
+        }
+
+        if (fixtureB == m_sensor)
+        {
+            void* userData = fixtureA->GetBody()->GetUserData();
+            if (userData)
+            {
+                bool* touching = (bool*)userData;
+                *touching = false;
+            }
+        }
+    }
+
+    void Step(Settings* settings)
+    {
+        Test::Step(settings);
+
+        // Traverse the contact results. Apply a force on shapes
+        // that overlap the sensor.
+        for (int32 i = 0; i < e_count; ++i)
+        {
+            if (m_touching[i] == false)
+            {
+                continue;
+            }
+
+            b2Body* body = m_bodies[i];
+            b2Body* ground = m_sensor->GetBody();
+
+            b2CircleShape* circle = (b2CircleShape*)m_sensor->GetShape();
+            b2Vec2 center = ground->GetWorldPoint(circle->m_p);
+
+            b2Vec2 position = body->GetPosition();
+
+            b2Vec2 d = center - position;
+            if (d.LengthSquared() < FLT_EPSILON * FLT_EPSILON)
+            {
+                continue;
+            }
+
+            d.Normalize();
+            b2Vec2 F = 100.0f * d;
+            body->ApplyForce(F, position);
+        }
+    }
+
+    static Test* Create()
+    {
+        return new SensorTest;
+    }
+
+    b2Fixture* m_sensor;
+    b2Body* m_bodies[e_count];
+    bool m_touching[e_count];
+};
+
+#endif