#ifndef MANUAL_H
#define MANUAL_H
#include "wabbit.h"

class manual: public virtual wabbit {
public:
	manual(const terminal& init_t, unsigned init_x, unsigned init_y,
		char init_c):
		wabbit {init_t, init_x, init_y, init_c} {}

	void decide(int *dx, int *dy) const {
		struct keystroke {
			char c;
			int dx;   //horizontal motion
			int dy;   //vertical motion
		};

		static const keystroke a[] {
			{'h',   -1,    0},   //left
			{'j',    0,    1},   //down
			{'k',    0,   -1},   //up
			{'l',    1,    0}    //right
		};

		if (const char k {key()}) {             //If a key was pressed,
			for (const auto& stroke: a) {   //search for it.
				if (k == stroke.c) {
					*dx = stroke.dx;
					*dy = stroke.dy;
					return;
				}
			}
			punish();   //Arrive here if bad key was pressed.
		}

		*dx = 0; //Arrive here if bad key or no key was pressed.
		*dy = 0;
	}

	void punish() const {beep();}  //There is a guilty human.
};

#endif