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engines/nancy/time.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 NANCY_TIME_H
+#define NANCY_TIME_H
+
+#include "common/scummsys.h"
+
+namespace Nancy {
+
+// A small utility struct to measure/accumulate time
+struct Time {
+public:
+	Time() { _milliseconds = 0; }
+	Time(const uint32 &t) { _milliseconds = t; }
+	Time(const Time &t) = default;
+	~Time() = default;
+	explicit operator uint32() const { return _milliseconds; }
+	Time &operator=(const Time &t)							{ if (this != &t) _milliseconds = t._milliseconds; return *this; }
+	Time &operator=(const uint32 &t)						{ _milliseconds = t; return *this; }
+	Time &operator+=(const Time &t)						 	{ _milliseconds += t._milliseconds; return *this; }
+	Time &operator+=(const uint32 &t)						{ _milliseconds+=t; return *this; }
+	Time &operator-=(const Time &t)							{ _milliseconds -= t._milliseconds; return *this; }
+	Time &operator-=(const uint32 &t)						{ _milliseconds-=t; return *this; }
+
+	friend Time operator+(Time l, const Time &r)			{ l += r; return l; }
+	friend Time operator+(Time l, const uint32 &r)			{ l += r; return l; }
+	friend Time operator+(const uint32 &l, Time r)			{ r += l; return r; }
+	friend Time operator-(Time l, const Time &r)			{ l -= r; return l; }
+	friend Time operator-(Time l, const uint32 &r)			{ l -= r; return l; }
+	friend Time operator-(const uint32 &l, Time r)			{ r -= l; return r; }
+
+	friend bool operator== (const Time &l, const Time &r)	{ return l._milliseconds == r._milliseconds; }
+	friend bool operator== (const Time &l, const uint32 &r)	{ return l._milliseconds == r; }
+	friend bool operator== (const uint32 &l, const Time &r)	{ return l == r._milliseconds; }
+	friend bool operator!= (const Time &l, const Time &r)	{ return l._milliseconds != r._milliseconds; }
+	friend bool operator!= (const Time &l, const uint32 &r)	{ return l._milliseconds != r; }
+	friend bool operator!= (const uint32 &l, const Time &r)	{ return l != r._milliseconds; }
+	friend bool operator< (const Time &l, const Time &r)	{ return l._milliseconds < r._milliseconds; }
+	friend bool operator< (const Time &l, const uint32 &r)	{ return l._milliseconds < r; }
+	friend bool operator< (const uint32 &l, const Time &r)	{ return l < r._milliseconds; }
+	friend bool operator> (const Time &l, const Time &r)	{ return r < l; }
+	friend bool operator> (const Time &l, const uint32 &r)	{ return r < l; }
+	friend bool operator> (const uint32 &l, const Time &r)	{ return r < l; }
+	friend bool operator<= (const Time &l, const Time &r)	{ return !(l > r); }
+	friend bool operator<= (const Time &l, const uint32 &r)	{ return !(l > r); }
+	friend bool operator<= (const uint32 &l, const Time &r)	{ return !(l > r); }
+	friend bool operator>= (const Time &l, const Time &r)	{ return !(l < r); }
+	friend bool operator>= (const Time &l, const uint32 &r)	{ return !(l < r); }
+	friend bool operator>= (const uint32 &l, const Time &r)	{ return !(l < r); }
+
+	uint16 getSeconds() const		{ return (_milliseconds / 1000) % 60; }
+	uint16 getMinutes() const		{ return (_milliseconds / 60000) % 60; }
+	uint16 getTotalHours() const	{ return _milliseconds / 3600000; }
+
+	uint16 getHours() const			{ return (_milliseconds / 3600000) % 24; }	// Used for player time
+	uint16 getDays() const			{ return _milliseconds / 86400000; }		// up to 49.7 days
+
+private:
+	uint32 _milliseconds;
+};
+
+} // End of namespace Nancy
+
+#endif // NANCY_TIME_H