#ifndef MOVIEH
#define MOVIEH
#include <iostream>
#include <vector>
#include "picture.h"
using namespace std;

class putable;

class movie {
	const int delay;	//in hundreths of a second

	void write(ostream& ost, bool direction) const;
	void write_to_file(const char *outfilename, const char *comment,
		bool direction) const;
public:
	const int nframes;
	vector<picture> v;
	static const int fs = 20;	//frames per second
	static const int nf = fs * 3 / 2;	//number of frames

	template <class ANIMATE1, class ANIMATE2, class ANIMATE3>
        movie(const ANIMATE1 *view,
		const ANIMATE2 *dir,
		const ANIMATE3 *dist,
		int initial_nframes = nf,
		int initial_delay = 100 / fs)

		: nframes(initial_nframes), delay(initial_delay), v(nframes) {
		for (vector<picture>::iterator it = v.begin(); it != v.end();
			++it) {
			it->frameno = it - v.begin();
			it->nframes = nframes;

			it->viewpoint = (*view)(it->frameno, it->nframes);
			it->direction = (*dir )(it->frameno, it->nframes);
			it->d         = (*dist)(it->frameno, it->nframes);
		}
	}

        movie(const picture& begin, const picture& end,
                int nframes = fs * 3 / 2, int delay = 100 / fs);

	friend movie& operator<<(movie& m, const putable& p);
        friend ostream& operator<<(ostream& ost, const movie& m);

	void write(const char *outfilename,
		const char *begin = "",
		const char *end = "") const;
};
#endif