X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fapp%2FTimer.h;fp=src%2Fapp%2FTimer.h;h=465ed64e45edc14a13faa7f462b70e35275e83a1;hb=bce16ed519add0d5398d504d2554395c43c74571;hp=0000000000000000000000000000000000000000;hpb=62c0a1d0ac98eb51418e4daa59e80b6cc97b522f;p=l2e.git

diff --git a/src/app/Timer.h b/src/app/Timer.h
new file mode 100644
index 0000000..465ed64
--- /dev/null
+++ b/src/app/Timer.h
@@ -0,0 +1,100 @@
+/*
+ * Timer.h
+ *
+ *  Created on: Aug 10, 2012
+ *      Author: holy
+ */
+
+#ifndef APP_TIMER_H_
+#define APP_TIMER_H_
+
+#include <algorithm>
+#include <list>
+
+namespace app {
+
+template<class Time>
+struct TimerData {
+
+	TimerData() : time(0), target(0), refCount(0) { }
+	TimerData(Time target) : time(0), target(target), refCount(0) { }
+
+	Time time;
+	Time target;
+	int refCount;
+
+};
+
+
+template<class Time>
+class Timer {
+
+public:
+	Timer() : data(0) { }
+	~Timer() { if (data) --data->refCount; }
+	Timer(TimerData<Time> *data) : data(data) { ++data->refCount; }
+	Timer(const Timer<Time> &other)
+	: data(other.data) { if (data) ++(data->refCount); }
+	Timer<Time> &operator =(const Timer<Time> &other) {
+		Timer<Time> temp(other);
+		Swap(temp);
+		return *this;
+	}
+	void Swap(Timer<Time> &other) {
+		std::swap(data, other.data);
+	}
+
+public:
+	bool Running() const {
+		return data;
+	}
+	bool Finished() const {
+		return data ? data->time >= data->target : false;
+	}
+	Time Elapsed() const {
+		return data ? data->time : Time();
+	}
+	Time Remaining() const {
+		return data ? (data->target - data->time) : Time();
+	}
+
+private:
+	TimerData<Time> *data;
+
+};
+
+
+template<class Time>
+class Timers {
+
+public:
+	Timers() { }
+
+public:
+	void Update(Time delta) {
+		for (typename std::list<TimerData<Time> >::iterator i(data.begin()), end(data.end()); i != end;) {
+			i->time += delta;
+			if (i->refCount <= 0) {
+				i = data.erase(i);
+			} else {
+				++i;
+			}
+		}
+	}
+	Timer<Time> StartTimer() {
+		data.push_back(TimerData<Time>());
+		return Timer<Time>(&data.back());
+	}
+	Timer<Time> StartCountdown(Time duration) {
+		data.push_back(TimerData<Time>(duration));
+		return Timer<Time>(&data.back());
+	}
+
+private:
+	std::list<TimerData<Time> > data;
+
+};
+
+}
+
+#endif /* APP_TIMER_H_ */