fix CPU spike during intro splash screens

src/game/boe.main.cpp

@@ -42,7 +42,6 @@
 #include "tools/prefs.hpp"
 #include "dialogxml/widgets/button.hpp"
 #include "tools/enum_map.hpp"
-#include "tools/framerate_limiter.hpp"
 #include "tools/event_listener.hpp"
 #include "tools/drawable_manager.hpp"
 bool All_Done = false;
@@ -358,12 +357,13 @@ void init_boe(int argc, char* argv[]) {
 	init_screen_locs();	
 	init_startup();
 	flushingInput = true;
+	cFramerateLimiter fps_limiter;
 	// Hidden preference to hide the startup logo - should be kept hidden
 	if(get_bool_pref("ShowStartupLogo", true))
-		show_logo();
+		show_logo(fps_limiter);
 	// The preference to hide the startup splash is exposed however.
 	if(get_bool_pref("ShowStartupSplash", true))
-		plop_fancy_startup();
+		plop_fancy_startup(fps_limiter);
 	
 	cUniverse::print_result = iLiving::print_result = add_string_to_buf;
 	cPlayer::give_help = give_help;

src/game/boe.main.hpp

@@ -1,5 +1,6 @@
 
 #include <SFML/Graphics.hpp>
+#include "tools/framerate_limiter.hpp"
 
 #ifdef __APPLE__
 extern eMenuChoice menuChoice;
@@ -18,8 +19,8 @@ void incidental_noises(bool on_surface);
 void pause(short length);
 bool handle_startup_press(location the_point);
 void handle_splash_events();
-void show_logo();
-void plop_fancy_startup();
+void show_logo(cFramerateLimiter& framerate_limiter);
+void plop_fancy_startup(cFramerateLimiter& framerate_limiter);
 void update_terrain_animation();
 void update_startup_animation();
 void handle_events();

src/game/boe.startup.cpp

@@ -128,12 +128,13 @@ bool handle_startup_press(location the_point) {
 	return false;
 }
 
-void handle_splash_events() {
+void handle_splash_events(cFramerateLimiter& framerate_limiter) {
 	sf::Event event;
 	while(mainPtr.pollEvent(event)) {
 		if(event.type == sf::Event::GainedFocus || event.type == sf::Event::MouseMoved)
 			set_cursor(sword_curs);
 	}
+	framerate_limiter.frame_finished();
 }
 
 static rectangle view_rect() {
@@ -141,7 +142,7 @@ static rectangle view_rect() {
 	return rectangle(0, 0, size.y, size.x);
 }
 
-void show_logo() {
+void show_logo(cFramerateLimiter& framerate_limiter) {
 	rectangle whole_window = view_rect();
 	
 	if(get_int_pref("DisplayMode") != 5)
@@ -156,17 +157,17 @@ void show_logo() {
 	play_sound(-95);
 	while(sound_going(95)) {
 		draw_splash(pict_to_draw, mainPtr, logo_from);
-		handle_splash_events();
+		handle_splash_events(framerate_limiter);
 	}
 	if(!get_int_pref("ShowStartupSplash", true)) {
 		sf::Time delay = time_in_ticks(60);
 		sf::Clock timer;
 		while(timer.getElapsedTime() < delay)
-			handle_splash_events();
+			handle_splash_events(framerate_limiter);
 	}
 }
 
-void plop_fancy_startup() {
+void plop_fancy_startup(cFramerateLimiter& framerate_limiter) {
 	rectangle whole_window = view_rect();
 
 	float ui_scale = get_float_pref("UIScale", 1.0);
@@ -182,7 +183,7 @@ void plop_fancy_startup() {
 	
 	while(timer.getElapsedTime() < delay) {
 		draw_splash(pict_to_draw, mainPtr, intro_from);
-		handle_splash_events();
+		handle_splash_events(framerate_limiter);
 	}
 }