initialize time-step statistics in a world; rename profile function

examples/hello_world/main.cpp

@@ -19,13 +19,13 @@
 #include <bounce\bounce.h>
 
 // We don't care for a profiler. This definition does nothing.
-bool b3PushProfileScope(const char* name)
+void b3BeginProfileScope(const char* name)
 {
-	return false;
+
 }
 
 // We don't care for a profiler. This definition does nothing.
-void b3PopProfileScope()
+void b3EndProfileScope()
 {
 	
 }

examples/testbed/framework/profiler.h

@@ -61,6 +61,8 @@ public:
 	// Add a profiler event to the queue.
 	// Return true if the even has been added to the event queue 
 	// or false if the queue is full.
+	// You can control the maximum number of profiler events using 
+	// MAX_PROFILER_EVENTS.
 	bool PushEvent(const char* name);
 	
 	// Remove the top profiler event.

examples/testbed/framework/test.cpp

@@ -21,30 +21,24 @@
 #include <imgui/imgui.h>
 
 extern u32 b3_allocCalls, b3_maxAllocCalls;
+extern u32 b3_convexCalls, b3_convexCacheHits;
 extern u32 b3_gjkCalls, b3_gjkIters, b3_gjkMaxIters;
 extern bool b3_convexCache;
-extern u32 b3_convexCalls, b3_convexCacheHits;
 
-bool b3PushProfileScope(const char* name)
+void b3BeginProfileScope(const char* name)
 {
-	return g_profiler->PushEvent(name);
+	g_profiler->PushEvent(name);
 }
 
-void b3PopProfileScope()
+void b3EndProfileScope()
 {
 	g_profiler->PopEvent();
 }
 
 Test::Test() : m_bodyDragger(&m_bodyRay, &m_world)
 {
-	b3_allocCalls = 0;
-	b3_gjkCalls = 0;
-	b3_gjkIters = 0;
-	b3_gjkMaxIters = 0;
-	b3_convexCache = g_testSettings->convexCache;
-	b3_convexCalls = 0;
-	b3_convexCacheHits = 0;
 	b3Draw_draw = g_draw;
+	b3_convexCache = g_testSettings->convexCache;
 
 	m_world.SetContactListener(this);
 
@@ -58,25 +52,12 @@ Test::Test() : m_bodyDragger(&m_bodyRay, &m_world)
 
 Test::~Test()
 {
-	b3_allocCalls = 0;
-	b3_gjkCalls = 0;
-	b3_gjkIters = 0;
-	b3_gjkMaxIters = 0;
-	b3_convexCache = false;
-	b3_convexCalls = 0;
-	b3_convexCacheHits = 0;
 	b3Draw_draw = nullptr;
 }
 
 void Test::Step()
 {
-	b3_allocCalls = 0;
-	b3_gjkCalls = 0;
-	b3_gjkIters = 0;
-	b3_gjkMaxIters = 0;
 	b3_convexCache = g_testSettings->convexCache;
-	b3_convexCalls = 0;
-	b3_convexCacheHits = 0;
 
 	// Step
 	float32 dt = g_testSettings->inv_hertz;

include/bounce/common/settings.h

@@ -143,28 +143,25 @@ void b3Free(void* block);
 // from this software.
 void b3Log(const char* string, ...);
 
-// You should implement this function to use your own profiler.
-bool b3PushProfileScope(const char* name);
+// You should implement this function to listen when a profile scope is opened.
+void b3BeginProfileScope(const char* name);
 
-// You should implement this function to use your own profiler.
-void b3PopProfileScope();
+// You must implement this function if you have implemented b3BeginProfileScope.
+// Implement this function to listen when a profile scope is closed.
+void b3EndProfileScope();
 
+// 
 struct b3ProfileScope
 {
 	b3ProfileScope(const char* name)
 	{
-		b = b3PushProfileScope(name);
+		b3BeginProfileScope(name);
 	}
 
 	~b3ProfileScope()
 	{
-		if (b)
-		{
-			b3PopProfileScope();
-		}
+		b3EndProfileScope();
 	}
-private:
-	bool b;
 };
 
 // The current version this software.

src/bounce/dynamics/world.cpp

@@ -25,14 +25,24 @@
 #include <bounce/dynamics/joints/joint.h>
 #include <bounce/dynamics/time_step.h>
 
-extern u32 b3_allocCalls;
-extern u32 b3_maxAllocCalls;
+extern u32 b3_allocCalls, b3_maxAllocCalls;
+extern u32 b3_convexCalls, b3_convexCacheHits;
+extern u32 b3_gjkCalls, b3_gjkIters, b3_gjkMaxIters;
+extern bool b3_convexCache;
 
 b3World::b3World() : m_bodyBlocks(sizeof(b3Body))
 {
 	b3_allocCalls = 0;
 	b3_maxAllocCalls = 0;
+	
+	b3_gjkCalls = 0;
+	b3_gjkIters = 0;
 
+	b3_convexCalls = 0;
+	b3_convexCacheHits = 0;
+
+	b3_convexCache = true;
+	
 	m_flags = e_clearForcesFlag;
 	m_sleeping = false;
 	m_warmStarting = true;
@@ -49,8 +59,15 @@ b3World::~b3World()
 		b->DestroyJoints();
 		b = b->m_next;
 	}
+	
 	b3_allocCalls = 0;
 	b3_maxAllocCalls = 0;
+
+	b3_gjkCalls = 0;
+	b3_gjkIters = 0;
+
+	b3_convexCalls = 0;
+	b3_convexCacheHits = 0;
 }
 
 void b3World::SetSleeping(bool flag)
@@ -98,6 +115,16 @@ void b3World::Step(float32 dt, u32 velocityIterations, u32 positionIterations)
 {
 	B3_PROFILE("Step");
 
+	// Clear statistics
+	b3_allocCalls = 0;
+	
+	b3_convexCalls = 0;
+	b3_convexCacheHits = 0;
+
+	b3_gjkCalls = 0;
+	b3_gjkIters = 0;
+	b3_gjkMaxIters = 0;
+
 	if (m_flags & e_shapeAddedFlag)
 	{
 		// If new shapes were added new contacts might be created.