From 6e4ad90a9fa65bc84d59b1d81298ac3d23a464e5 Mon Sep 17 00:00:00 2001
From: Sam Hocevar <sam@hocevar.net>
Date: Thu, 2 Sep 2010 04:39:20 +0000
Subject: [PATCH] Add a stats logger entity.

---
 src/Makefile.am    |  2 +-
 src/debugstats.cpp | 59 ++++++++++++++++++++++++++++++++++++++++++++++
 src/debugstats.h   | 33 ++++++++++++++++++++++++++
 src/test-map.cpp   |  2 ++
 4 files changed, 95 insertions(+), 1 deletion(-)
 create mode 100644 src/debugstats.cpp
 create mode 100644 src/debugstats.h

diff --git a/src/Makefile.am b/src/Makefile.am
index 7de118b8..b612de3d 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -10,7 +10,7 @@ libcommon_a_SOURCES = \
     forge.cpp forge.h video.cpp video.h timer.cpp timer.h bitfield.h \
     profiler.cpp profiler.h input.h input.cpp world.cpp world.h \
     debugfps.cpp debugfps.h debugsprite.cpp debugsprite.h \
-    debugrecord.cpp debugrecord.h
+    debugrecord.cpp debugrecord.h debugstats.cpp debugstats.h
 libcommon_a_CXXFLAGS = `pkg-config --cflags sdl gl SDL_image`
 
 test_map_SOURCES = test-map.cpp sdlinput.cpp sdlinput.h
diff --git a/src/debugstats.cpp b/src/debugstats.cpp
new file mode 100644
index 00000000..25b566e3
--- /dev/null
+++ b/src/debugstats.cpp
@@ -0,0 +1,59 @@
+//
+// Deus Hax (working title)
+// Copyright (c) 2010 Sam Hocevar <sam@hocevar.net>
+//
+
+#if defined HAVE_CONFIG_H
+#   include "config.h"
+#endif
+
+#include <cstdio>
+
+#include "core.h"
+#include "debugstats.h"
+
+/*
+ * DebugStats implementation class
+ */
+
+class DebugStatsData
+{
+    friend class DebugStats;
+
+private:
+    FILE *fp;
+};
+
+/*
+ * Public DebugStats class
+ */
+
+DebugStats::DebugStats(char const *path)
+{
+    data = new DebugStatsData();
+    data->fp = fopen(path, "w+");
+}
+
+Entity::Group DebugStats::GetGroup()
+{
+    return GROUP_AFTER;
+}
+
+void DebugStats::TickGame(float deltams)
+{
+    Entity::TickGame(deltams);
+
+    fprintf(data->fp, "%i %f %f %f %f\n",
+            Ticker::GetFrameNum(),
+            Profiler::GetAvg(Profiler::STAT_TICK_GAME),
+            Profiler::GetAvg(Profiler::STAT_TICK_DRAW),
+            Profiler::GetAvg(Profiler::STAT_TICK_BLIT),
+            Profiler::GetAvg(Profiler::STAT_TICK_FRAME));
+}
+
+DebugStats::~DebugStats()
+{
+    fclose(data->fp);
+    delete data;
+}
+
diff --git a/src/debugstats.h b/src/debugstats.h
new file mode 100644
index 00000000..71cfce51
--- /dev/null
+++ b/src/debugstats.h
@@ -0,0 +1,33 @@
+//
+// Deus Hax (working title)
+// Copyright (c) 2010 Sam Hocevar <sam@hocevar.net>
+//
+
+//
+// The DebugStats class
+// --------------------
+//
+
+#if !defined __DH_DEBUGSTATS_H__
+#define __DH_DEBUGSTATS_H__
+
+#include "entity.h"
+
+class DebugStatsData;
+
+class DebugStats : public Entity
+{
+public:
+    DebugStats(char const *path);
+    virtual ~DebugStats();
+
+protected:
+    virtual Group GetGroup();
+    virtual void TickGame(float deltams);
+
+private:
+    DebugStatsData *data;
+};
+
+#endif // __DH_DEBUGSTATS_H__
+
diff --git a/src/test-map.cpp b/src/test-map.cpp
index b54f155e..26b1cde6 100644
--- a/src/test-map.cpp
+++ b/src/test-map.cpp
@@ -17,6 +17,7 @@
 #include "debugfps.h"
 #include "debugsprite.h"
 #include "debugrecord.h"
+#include "debugstats.h"
 
 static float const FPS = 30.0f;
 
@@ -52,6 +53,7 @@ int main(int argc, char **argv)
     new DebugFps();
     new DebugSprite(game);
     //new DebugRecord("lolengine.ogg");
+    new DebugStats("stats.txt");
 
     while (!Ticker::Finished())
     {