1 files changed, 30 insertions, 9 deletions

diff --git a/src/netlem.c b/src/netlem.c
index 5f3dfb2..00afcb9 100644
--- a/src/netlem.c
+++ b/src/netlem.c
@@ -23,6 +23,7 @@
 struct _networkReadProc_args {
 	client_t *client;
 	tick_t *tick;
+	tick_t *lastServerTick;
 	int *drift_ms;
 };
 
@@ -54,9 +55,10 @@ int updateGraphics(gameGraphics_t *gGraph);
 int main(int argc, char **argv) {
 
 	int drift_ms=0, endMainLoop, result;
-	tick_t tick=0;
-	Uint32 timeBefore_ms;
+	tick_t tick=0, lastServerTick=0;
+	Uint32 timeBefore_ms[10], waited[10], t;
 	Uint8 loadProgress=0;
+	double fps, waitPercent;
 
 	client_t client;
 	serverParams_t serverParams;
@@ -80,7 +82,7 @@ int main(int argc, char **argv) {
 	openLog(NULL);
 
 	// Starting log message
-	sprintf(logMsg, "NetLemmings version %i.%i", NetLemmings_VERSION_MAJOR, NetLemmings_VERSION_MINOR);
+	snprintf(logMsg, 128, "NetLemmings version %i.%i", NetLemmings_VERSION_MAJOR, NetLemmings_VERSION_MINOR);
 	logs(LOG_INFO, logMsg);
 
 	// Server name resolution and connection
@@ -119,6 +121,7 @@ int main(int argc, char **argv) {
 	args.client=&client;
 	args.tick=&tick;
 	args.drift_ms=&drift_ms;
+	args.lastServerTick=&lastServerTick;
 	SDL_Thread *networkReadThread = SDL_CreateThread(networkReadProc, &args);
 	if(!networkReadThread) {
 		logs2(LOG_ERROR,"main(), SDL_CreateThread()", SDL_GetError());
@@ -143,10 +146,15 @@ int main(int argc, char **argv) {
 		return 6;
 	}
 
+	memset(timeBefore_ms, 0, 10*sizeof(Uint32));
+	t=0;
+
 	// Main game loop
 	endMainLoop=0;
 	while(!endMainLoop) {
-		timeBefore_ms = SDL_GetTicks();
+		// Store loop begin date in a 10 entries rotate buffer
+		t=(t+1)%10;
+		timeBefore_ms[t] = SDL_GetTicks();
 
 		// Process local player keyboard and mouse events
 		// (note: remote events are processed by network read thread)
@@ -157,8 +165,21 @@ int main(int argc, char **argv) {
 		// Display that new game state to the local user
 		updateGraphics(&gGraph);
 
+
 		// Delay that we have to wait for the next frame (depends on execution time and network time drift)
-		waitForNextTick(timeBefore_ms, drift_ms);
+		waited[t]=waitForNextTick(timeBefore_ms[t], drift_ms);
+
+		// Compute & display FPS mean value on 10 loops
+		if (t==0) {
+			fps=10000.0/(timeBefore_ms[t]-timeBefore_ms[(t+1)%10]);
+			waitPercent=0;
+			for(;t<10;t++) waitPercent+=waited[t];
+			t=0;
+			waitPercent=(double)waitPercent*10/TICK_DURATION_MS;
+
+			snprintf(logMsg, 128, "tick:%d\tlastServerTick:%d\tdrift_ms:%d\t\t%.1f FPS\t W:%.1f%%\n", tick, lastServerTick, drift_ms, fps, waitPercent);
+			logs(LOG_DEBUG, logMsg);
+		}
 	}
 
 	// Close communcation with the server, stop threads, close logs and go out
@@ -277,7 +298,7 @@ int act(tick_t *tick, int loadProgress, TCPsocket sockClient, int *dirtRectsCoun
 int networkReadProc(void *a) {
 	int result;
 	event_t e;
-	char logMsg[128];
+	//char logMsg[128];
 	
 	struct _networkReadProc_args *args = (struct _networkReadProc_args *)a;
 
@@ -292,8 +313,9 @@ int networkReadProc(void *a) {
 //		logs(LOG_DEBUG, "Got event");
 
 		*(args->drift_ms)=( *(args->tick) - e.serverTick );
-		sprintf(logMsg, "serverTick==%i, tick==%i, drift_ms==%i\n", e.serverTick, *(args->tick), *(args->drift_ms));
-		logs(LOG_DEBUG, logMsg);
+		*(args->lastServerTick)=e.serverTick;
+//		sprintf(logMsg, "serverTick==%i, tick==%i, drift_ms==%i\n", e.serverTick, *(args->tick), *(args->drift_ms));
+//		logs(LOG_DEBUG, logMsg);
 
 
 		result=SDL_SemPost(semGameStart);
@@ -504,7 +526,6 @@ int updateGraphics(gameGraphics_t *gGraph) {
 			if ( lastViewport.x != gGraph->viewport.x ) {
 				//lastViewport=gGraph->viewport;
 				lastViewport.x=gGraph->viewport.x;
-				printf("viewport.x==%i\n", gGraph->viewport.x);
 				if ( gGraph->dirtRectsCount > 0 ) {
 					free(gGraph->dirtRects);
 				}