TSAGE: Made some dialogs less CPU hungry

The start/intro dialog, the inventory dialog and the conversation
dialog now call delayMillis() in their event loop. This is
consistent with how the action menu dialog already worked.

3 files changed, 10 insertions, 4 deletions

diff --git a/engines/tsage/converse.cpp b/engines/tsage/converse.cpp
index b1e318cc1c..5fa36142e7 100644
--- a/engines/tsage/converse.cpp
+++ b/engines/tsage/converse.cpp
@@ -418,8 +418,10 @@ int ConversationChoiceDialog::execute(const Common::StringArray &choiceList) {
 	Event event;
 	while (!_vm->getEventManager()->shouldQuit()) {
 		while (!_globals->_events.getEvent(event, EVENT_KEYPRESS | EVENT_BUTTON_DOWN | EVENT_MOUSE_MOVE) &&
-				!_vm->getEventManager()->shouldQuit())
-			;
+				!_vm->getEventManager()->shouldQuit()) {
+			g_system->delayMillis(10);
+			g_system->updateScreen();
+		}
 		if (_vm->getEventManager()->shouldQuit())
 			break;
 
diff --git a/engines/tsage/dialogs.cpp b/engines/tsage/dialogs.cpp
index fa9c73d07f..759deebbef 100644
--- a/engines/tsage/dialogs.cpp
+++ b/engines/tsage/dialogs.cpp
@@ -468,8 +468,10 @@ void InventoryDialog::execute() {
 	while (!_vm->getEventManager()->shouldQuit()) {
 		// Get events
 		Event event;
-		while (!_globals->_events.getEvent(event) && !_vm->getEventManager()->shouldQuit())
-			;
+		while (!_globals->_events.getEvent(event) && !_vm->getEventManager()->shouldQuit()) {
+			g_system->delayMillis(10);
+			g_system->updateScreen();
+		}
 		if (_vm->getEventManager()->shouldQuit())
 			return;
 
diff --git a/engines/tsage/graphics.cpp b/engines/tsage/graphics.cpp
index 1b2e6b1137..5da00e8522 100644
--- a/engines/tsage/graphics.cpp
+++ b/engines/tsage/graphics.cpp
@@ -991,6 +991,8 @@ GfxButton *GfxDialog::execute(GfxButton *defaultButton) {
 				break;
 			}
 		}
+		g_system->delayMillis(10);
+		g_system->updateScreen();
 	}
 
 	_gfxManager.deactivate();