CGE2: Add mainLoop() and handleFrame().

Also implement connecting things.

6 files changed, 78 insertions, 8 deletions

diff --git a/engines/cge2/cge2.cpp b/engines/cge2/cge2.cpp
index fe94e16387..89ec3b0b42 100644
--- a/engines/cge2/cge2.cpp
+++ b/engines/cge2/cge2.cpp
@@ -70,6 +70,8 @@ CGE2Engine::CGE2Engine(OSystem *syst, const ADGameDescription *gameDescription)
 	_sex = true;
 	_mouseTop = kWorldHeight / 3;
 	_dark = false;
+	_lastFrame = 0;
+	_lastTick = 0;
 }
 
 void CGE2Engine::init() {
diff --git a/engines/cge2/cge2.h b/engines/cge2/cge2.h
index 5e16864cb5..0c3670ff00 100644
--- a/engines/cge2/cge2.h
+++ b/engines/cge2/cge2.h
@@ -86,6 +86,9 @@ public:
 };
 
 class CGE2Engine : public Engine {
+private:
+	uint32 _lastFrame, _lastTick;
+	void tick();
 public:
 	CGE2Engine(OSystem *syst, const ADGameDescription *gameDescription);
 	virtual bool hasFeature(EngineFeature f) const;
@@ -118,6 +121,8 @@ public:
 	int findActivePocket(int ref);
 	void pocFul();
 	void killText();
+	void mainLoop();
+	void handleFrame();
 
 	void setEye(V3D &e);
 	void setEye(const V2D& e2, int z = -kScrWidth);
diff --git a/engines/cge2/cge2_main.cpp b/engines/cge2/cge2_main.cpp
index 05dcc802bf..ad1d3a6a4c 100644
--- a/engines/cge2/cge2_main.cpp
+++ b/engines/cge2/cge2_main.cpp
@@ -330,8 +330,15 @@ void CGE2Engine::movie(const char *ext) {
 		loadScript(fn);
 		caveUp(_now);
 
+		while (!_commandHandler->idle() && !_quitFlag)
+			mainLoop();
+
 		warning("STUB: CGE2Engine::movie()");
 
+		_commandHandler->addCommand(kCmdClear, -1, 0, nullptr);
+		_commandHandlerTurbo->addCommand(kCmdClear, -1, 0, nullptr);
+		_vga->_showQ->clear();
+		_spare->clear();
 		_now = now;
 	}
 }
@@ -383,8 +390,62 @@ void CGE2Engine::showBak(int ref) {
 	}
 }
 
+void CGE2Engine::mainLoop() {
+	_vga->show();
+	_commandHandlerTurbo->runCommand();
+	_commandHandler->runCommand();
+
+	// Handle a delay between game frames
+	handleFrame();
+
+	// Handle any pending events
+	//_eventManager->poll();
+	warning("STUB: CGE2Engine::mainLoop() - Event handling is missing!");
+
+	// Check shouldQuit()
+	_quitFlag = shouldQuit();
+}
+
+void CGE2Engine::handleFrame() {
+	// Game frame delay
+	uint32 millis = g_system->getMillis();
+	while (!_quitFlag && (millis < (_lastFrame + kGameFrameDelay))) {
+		// Handle any pending events
+		//_eventManager->poll();
+		warning("STUB: CGE2Engine::handleFrame() - Event handling is missing!");
+
+		if (millis >= (_lastTick + kGameTickDelay)) {
+			// Dispatch the tick to any active objects
+			tick();
+			_lastTick = millis;
+		}
+
+		// Slight delay
+		g_system->delayMillis(5);
+		millis = g_system->getMillis();
+	}
+	_lastFrame = millis;
+
+	if (millis >= (_lastTick + kGameTickDelay)) {
+		// Dispatch the tick to any active objects
+		tick();
+		_lastTick = millis;
+	}
+}
+
+void CGE2Engine::tick() {
+	for (Sprite *spr = _vga->_showQ->first(); spr; spr = spr->_next) {
+		if (spr->_time) {
+			if (!spr->_flags._hide) {
+				if (--spr->_time == 0)
+					spr->tick();
+			}
+		}
+	}
+}
+
 void CGE2Engine::loadMap(int cav) {
-	warning("STUB:  CGE2Engine::loadMap()");
+	warning("STUB: CGE2Engine::loadMap()");
 }
 
 void CGE2Engine::openPocket() {
diff --git a/engines/cge2/cge2_main.h b/engines/cge2/cge2_main.h
index 1472e2ef7b..a0a8bd16a1 100644
--- a/engines/cge2/cge2_main.h
+++ b/engines/cge2/cge2_main.h
@@ -31,11 +31,13 @@
 namespace CGE2 {
 
 #define kLineMax          512
-#define kIntroExt      ".I80"
-#define kNoByte            -1 // Recheck this! We have no proof for it's original value.
-#define kTabName    "CGE.TAB"
+#define kIntroExt         ".I80"
+#define kNoByte           -1 // Recheck this! We have no proof for it's original value.
+#define kTabName          "CGE.TAB"
 #define kInfoW            140
 #define kPocketFull       170
+#define kGameFrameDelay   (1000 / 50)
+#define kGameTickDelay    (1000 / 62)
 
 } // End of namespace CGE2
 
diff --git a/engines/cge2/vga13h.cpp b/engines/cge2/vga13h.cpp
index 992d0c0d10..46515e7171 100644
--- a/engines/cge2/vga13h.cpp
+++ b/engines/cge2/vga13h.cpp
@@ -458,9 +458,9 @@ void Sprite::step(int nr) {
 	warning("STUB: Sprite::step()");
 }
 
-//void Sprite::tick() {
-//	step();
-//}
+void Sprite::tick() {
+	step();
+}
 
 void Sprite::makeXlat(uint8 *x) {
 	if (!_ext)
diff --git a/engines/cge2/vga13h.h b/engines/cge2/vga13h.h
index 6750aeebd1..77a2fd35be 100644
--- a/engines/cge2/vga13h.h
+++ b/engines/cge2/vga13h.h
@@ -152,7 +152,7 @@ public:
 	Seq *setSeq(Seq *seq);
 	CommandHandler::Command *snList(Action type);
 	//virtual void touch(uint16 mask, int x, int y, Common::KeyCode keyCode);
-	//virtual void tick();
+	virtual void tick();
 	void clrHide(void) { if (_ext) _ext->_b0 = NULL; }
 	void sync(Common::Serializer &s);