Wrote a simple passive timer for debugging

src/application.cpp

@@ -21,6 +21,8 @@
 */
 #include "application.hpp"
 
+#include "timer.hpp"
+
 #include <stdexcept>
 #include <chrono>
 #include <iostream>
@@ -118,6 +120,8 @@ void Application::Proc() {
 		//update the current time
 		realTime = Clock::now();
 
+		Timer runTimer("run");
+
 		//simulate game time
 		while (simTime < realTime) {
 			//call each user defined function
@@ -125,8 +129,18 @@ void Application::Proc() {
 			simTime += delta;
 		}
 
+		runTimer.Stop();
+
+		Timer renderTimer("render");
+
 		//draw the game to the screen
 		activeScene->RenderFrame();
+
+		renderTimer.Stop();
+
+		//debugging output
+//		std::cout << runTimer << std::endl;
+//		std::cout << renderTimer << std::endl;
 	}
 
 	UnloadScene();

src/debugging/makefile

@@ -0,0 +1,37 @@
+#config
+INCLUDES+=.
+LIBS+=
+CXXFLAGS+=-std=c++11 $(addprefix -I,$(INCLUDES))
+
+#source
+CXXSRC=$(wildcard *.cpp)
+
+#objects
+OBJDIR=obj
+OBJ+=$(addprefix $(OBJDIR)/,$(CXXSRC:.cpp=.o))
+
+#output
+OUTDIR=..
+OUT=$(addprefix $(OUTDIR)/,libcommon.a)
+
+#targets
+all: $(OBJ) $(OUT)
+	ar -crs $(OUT) $(OBJ)
+
+$(OBJ): | $(OBJDIR)
+
+$(OUT): | $(OUTDIR)
+
+$(OBJDIR):
+	mkdir $(OBJDIR)
+
+$(OUTDIR):
+	mkdir $(OUTDIR)
+
+$(OBJDIR)/%.o: %.cpp
+	$(CXX) $(CXXFLAGS) -c -o $@ $<
+
+clean:
+	$(RM) *.o *.a *.exe
+
+rebuild: clean all

src/debugging/timer.cpp

@@ -0,0 +1,29 @@
+/* Copyright: (c) Kayne Ruse 2014
+ * 
+ * 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.
+*/
+#include "timer.hpp"
+
+std::ostream& operator<<(std::ostream& os, Timer& t) {
+	os << t.GetName() << ": ";
+	os << std::chrono::duration_cast<std::chrono::nanoseconds>(t.GetTime()).count();
+	os << "ns";
+	return os;
+}

src/debugging/timer.hpp

@@ -0,0 +1,54 @@
+/* Copyright: (c) Kayne Ruse 2014
+ * 
+ * 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 TIMER_HPP_
+#define TIMER_HPP_
+
+#include <chrono>
+#include <string>
+#include <ostream>
+
+class Timer {
+public:
+	typedef std::chrono::high_resolution_clock Clock;
+
+	Timer() = default;
+	Timer(std::string s) : name(s), start(Clock::now()) {};
+	~Timer() = default;
+
+	inline void Start() { start = Clock::now(); }
+	inline void Stop() { time = Clock::now() - start; }
+
+	//accessors and mutators
+	Clock::duration GetTime() { return time; }
+
+	std::string SetName(std::string s) { return name = s; }
+	std::string GetName() { return name; }
+
+private:
+	std::string name;
+	Clock::time_point start;
+	Clock::duration time;
+};
+
+std::ostream& operator<<(std::ostream& os, Timer& t);
+
+#endif

src/in_world.cpp

@@ -21,6 +21,8 @@
 */
 #include "in_world.hpp"
 
+#include "timer.hpp"
+
 #include "utility.hpp"
 
 #include "region_pager_api.hpp"

src/makefile

@@ -1,5 +1,5 @@
 #config
-INCLUDES+=. graphics map ui utilities
+INCLUDES+=. debugging graphics map ui utilities
 LIBS+=libcommon.a -lmingw32 -lSDLmain -lSDL -llua
 CXXFLAGS+=-std=c++11 $(addprefix -I,$(INCLUDES))
 
@@ -16,6 +16,7 @@ OUT=$(addprefix $(OUTDIR)/,jam)
 
 #targets
 all: $(OBJ) $(OUT)
+	$(MAKE) -C debugging
 	$(MAKE) -C graphics
 	$(MAKE) -C map
 	$(MAKE) -C ui