X-Git-Url: https://git.localhorst.tv/?a=blobdiff_plain;f=src%2Ftimer.hpp;fp=src%2Ftimer.hpp;h=c5445b2b331a980ed750315671b91955b7fb34da;hb=83ed3de28841d1eecfca39ff540e804cf6809b32;hp=0000000000000000000000000000000000000000;hpb=bee003d1d375789b6533cfd39c65f6d4478f1966;p=blank.git

diff --git a/src/timer.hpp b/src/timer.hpp
new file mode 100644
index 0000000..c5445b2
--- /dev/null
+++ b/src/timer.hpp
@@ -0,0 +1,49 @@
+#ifndef BLANK_TIMER_HPP
+#define BLANK_TIMER_HPP
+
+
+namespace blank {
+
+class IntervalTimer {
+
+public:
+	explicit IntervalTimer(int interval_ms) noexcept
+	: intv(interval_ms) { }
+
+	void Start() noexcept {
+		speed = 1;
+	}
+	void Stop() noexcept {
+		value = 0;
+		speed = 0;
+	}
+
+	bool Running() const noexcept {
+		return speed != 0;
+	}
+	bool Hit() const noexcept {
+		return Running() && value % intv < last_dt;
+	}
+	int Elapsed() const noexcept {
+		return value;
+	}
+	int Iteration() const noexcept {
+		return value / intv;
+	}
+
+	void Update(int dt) noexcept {
+		value += dt * speed;
+		last_dt = dt;
+	}
+
+private:
+	int intv;
+	int value = 0;
+	int speed = 0;
+	int last_dt = 0;
+
+};
+
+}
+
+#endif