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engines/lastexpress/game/events.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef LASTEXPRESS_EVENTS_H
+#define LASTEXPRESS_EVENTS_H
+
+#include "lastexpress/lastexpress.h"
+
+namespace LastExpress {
+
+class LastExpressEngine;
+class LogicManager;
+
+struct ConsCallParam {
+	ConsCallParam() : intParam(0), stringParam(nullptr) {}
+
+	template<typename T>
+	ConsCallParam(T param) : intParam(static_cast<int32>(param)), stringParam(nullptr) {}
+
+	ConsCallParam(const char *param) : intParam(0), stringParam(param) {}
+	ConsCallParam(char *param) : intParam(0), stringParam(param) {}
+
+	int32 intParam;
+	const char *stringParam;
+};
+
+typedef struct Message {
+	int receiver;
+	int action;
+	int sender;
+	ConsCallParam param;
+
+	Message() {
+		clear();
+	}
+
+	void clear() {
+		receiver = 0;
+		action = 0;
+		sender = 0;
+	}
+} Message;
+
+typedef struct Event {
+	int channel;
+	int x;
+	int y;
+	int flags;
+
+	Event() {
+		channel = 0;
+		x = 0;
+		y = 0;
+		flags = 0;
+	}
+} Event;
+
+class MessageManager {
+	friend class LastExpressEngine;
+	friend class LogicManager;
+	friend class MemoryManager;
+
+public:
+	MessageManager(LastExpressEngine *engine);
+	~MessageManager();
+
+	void setMessageHandle(int handleChannel, void (LogicManager::*handle)(Message *));
+	void (LogicManager::*getMessageHandle(int handleChannel))(Message *);
+	void setEventHandle(int handleChannel, void (LastExpressEngine::*handle)(Event *));
+	void (LastExpressEngine::*getEventHandle(int handleChannel))(Event *);
+	void addEvent(int channel, int x, int y, int flags);
+	Event *getEvent();
+	void addMessage(int receiver, int actionId, int sender, ConsCallParam param);
+	Message *getMessage();
+	bool process();
+	void flush();
+	void flushTime();
+	void forceMessage(Message *msg);
+	void clearMessageQueue();
+	void clearEventQueue();
+	void clearClickEvents();
+	void saveMessages(CVCRFile *file);
+	void loadMessages(CVCRFile *file);
+
+private:
+	LastExpressEngine *_engine = nullptr;
+
+	Message _messages[128];
+	Message _emptyMessage;
+	void (LogicManager::*_messageHandles[40])(Message *);
+	int _curMsgIndex = 0;
+	int _numMsgsInQueue = 0;
+	int _nextMsgIndex = 0;
+	Message *_autoMessages = nullptr;
+
+	Event _events[128];
+	void (LastExpressEngine::*_eventHandles[16])(Event *);
+	int _doubleClickMaxFrames = 30;
+	int _latestTickLeftMousePressed = 0;
+	int _lastEventIndex = 128;
+	int _curEventIndex = 0;
+	int _numEventsInQueue = 0;
+	int _nextEventIndex = 0;
+	bool _systemEventRightMouseDown = false;
+	bool _systemEventLeftMouseDown = false;
+};
+
+} // End of namespace LastExpress
+
+#endif // LASTEXPRESS_EVENTS_H