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/Tiles.h

@@ -0,0 +1,156 @@
+/*
+* Copyright (c) 2006-2009 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 TILES_H
+#define TILES_H
+
+/// This stress tests the dynamic tree broad-phase. This also shows that tile
+/// based collision is _not_ smooth due to Box2D not knowing about adjacency.
+class Tiles : public Test
+{
+public:
+    enum
+    {
+        e_count = 20
+    };
+
+    Tiles()
+    {
+        m_fixtureCount = 0;
+        b2Timer timer;
+
+        {
+            float32 a = 0.5f;
+            b2BodyDef bd;
+            bd.position.y = -a;
+            b2Body* ground = m_world->CreateBody(&bd);
+
+#if 1
+            int32 N = 200;
+            int32 M = 10;
+            b2Vec2 position;
+            position.y = 0.0f;
+            for (int32 j = 0; j < M; ++j)
+            {
+                position.x = -N * a;
+                for (int32 i = 0; i < N; ++i)
+                {
+                    b2PolygonShape shape;
+                    shape.SetAsBox(a, a, position, 0.0f);
+                    ground->CreateFixture(&shape, 0.0f);
+                    ++m_fixtureCount;
+                    position.x += 2.0f * a;
+                }
+                position.y -= 2.0f * a;
+            }
+#else
+            int32 N = 200;
+            int32 M = 10;
+            b2Vec2 position;
+            position.x = -N * a;
+            for (int32 i = 0; i < N; ++i)
+            {
+                position.y = 0.0f;
+                for (int32 j = 0; j < M; ++j)
+                {
+                    b2PolygonShape shape;
+                    shape.SetAsBox(a, a, position, 0.0f);
+                    ground->CreateFixture(&shape, 0.0f);
+                    position.y -= 2.0f * a;
+                }
+                position.x += 2.0f * a;
+            }
+#endif
+        }
+
+        {
+            float32 a = 0.5f;
+            b2PolygonShape shape;
+            shape.SetAsBox(a, a);
+
+            b2Vec2 x(-7.0f, 0.75f);
+            b2Vec2 y;
+            b2Vec2 deltaX(0.5625f, 1.25f);
+            b2Vec2 deltaY(1.125f, 0.0f);
+
+            for (int32 i = 0; i < e_count; ++i)
+            {
+                y = x;
+
+                for (int32 j = i; j < e_count; ++j)
+                {
+                    b2BodyDef bd;
+                    bd.type = b2_dynamicBody;
+                    bd.position = y;
+
+                    //if (i == 0 && j == 0)
+                    //{
+                    //  bd.allowSleep = false;
+                    //}
+                    //else
+                    //{
+                    //  bd.allowSleep = true;
+                    //}
+
+                    b2Body* body = m_world->CreateBody(&bd);
+                    body->CreateFixture(&shape, 5.0f);
+                    ++m_fixtureCount;
+                    y += deltaY;
+                }
+
+                x += deltaX;
+            }
+        }
+
+        m_createTime = timer.GetMilliseconds();
+    }
+
+    void Step(Settings* settings)
+    {
+        const b2ContactManager& cm = m_world->GetContactManager();
+        int32 height = cm.m_broadPhase.GetTreeHeight();
+        int32 leafCount = cm.m_broadPhase.GetProxyCount();
+        int32 minimumNodeCount = 2 * leafCount - 1;
+        float32 minimumHeight = ceilf(logf(float32(minimumNodeCount)) / logf(2.0f));
+        m_debugDraw.DrawString(5, m_textLine, "dynamic tree height = %d, min = %d", height, int32(minimumHeight));
+        m_textLine += 15;
+
+        Test::Step(settings);
+
+        m_debugDraw.DrawString(5, m_textLine, "create time = %6.2f ms, fixture count = %d",
+            m_createTime, m_fixtureCount);
+        m_textLine += 15;
+
+        //b2DynamicTree* tree = &m_world->m_contactManager.m_broadPhase.m_tree;
+
+        //if (m_stepCount == 400)
+        //{
+        //  tree->RebuildBottomUp();
+        //}
+    }
+
+    static Test* Create()
+    {
+        return new Tiles;
+    }
+
+    int32 m_fixtureCount;
+    float32 m_createTime;
+};
+
+#endif