Repeat the intro if no activity for 30 sec (#213)

SourceX/DiabloUI/diabloui.cpp

@@ -215,6 +215,24 @@ bool UiFocusNavigation(SDL_Event *event)
 	if (event->type == SDL_QUIT)
 		exit(0);
 
+	switch(event->type) {
+		case SDL_KEYUP:
+		case SDL_MOUSEBUTTONUP:
+		case SDL_MOUSEMOTION:
+		case SDL_MOUSEWHEEL:
+		case SDL_JOYBUTTONUP:
+		case SDL_JOYAXISMOTION:
+		case SDL_JOYBALLMOTION:
+		case SDL_JOYHATMOTION:
+		case SDL_FINGERUP:
+		case SDL_FINGERMOTION:
+		case SDL_CONTROLLERBUTTONUP:
+		case SDL_CONTROLLERAXISMOTION:
+		case SDL_SYSWMEVENT:
+		case SDL_WINDOWEVENT:
+			mainmenu_restart_repintro();
+	}
+
 	if (event->type == SDL_KEYDOWN) {
 		switch (event->key.keysym.sym) {
 		case SDLK_UP:

SourceX/DiabloUI/diabloui.h

@@ -119,4 +119,6 @@ void WordWrap(UI_Item *item);
 void DvlIntSetting(const char *valuename, int *value);
 void DvlStringSetting(const char *valuename, char *string, int len);
 
+void mainmenu_restart_repintro();
+
 }

SourceX/DiabloUI/mainmenu.cpp

@@ -3,6 +3,9 @@
 
 namespace dvl {
 
+int mainmenu_repintro_delay; //seconds
+DWORD dwTicks;
+
 int MainMenuResult;
 UI_Item MAINMENU_DIALOG[] = {
 	{ { 0, 0, 640, 480 }, UI_IMAGE, 0, 0, NULL, &ArtBackground },
@@ -24,6 +27,11 @@ void mainmenu_Esc()
 	UiMainMenuSelect(MAINMENU_EXIT_DIABLO);
 }
 
+void mainmenu_restart_repintro()
+{
+	dwTicks = GetTickCount() + mainmenu_repintro_delay * 1000;
+}
+
 void mainmenu_Load(char *name, void(*fnSound)(char *file))
 {
 	gfnSoundFunction = fnSound;
@@ -47,9 +55,16 @@ void mainmenu_Free()
 
 BOOL UiMainMenuDialog(char *name, int *pdwResult, void(*fnSound)(char *file), int a4)
 {
+	mainmenu_repintro_delay = a4;
 	mainmenu_Load(name, fnSound);
+	
+	mainmenu_restart_repintro(); // for automatic starts
 
 	while (MainMenuResult == 0) {
+		if (GetTickCount() >= dwTicks) {
+			mainmenu_play_intro();
+			break;
+		}
 		UiRender();
 	}