//Tetrad.cpp

#include "Tetrad.h"
using namespace std;


Tetrad::Tetrad(int type, int startx, int starty)
	: x(startx), y(starty)
{
	show = true;
	fstream fin;

	switch(type) {
		case O: fin.open("tetrado.txt", ios::in); break;
		case S: fin.open("tetrads.txt", ios::in); break;
		case Z: fin.open("tetradz.txt", ios::in); break;
		case T: fin.open("tetradt.txt", ios::in); break;
		case L: fin.open("tetradl.txt", ios::in); break;
		case J: fin.open("tetradj.txt", ios::in); break;
		case I: fin.open("tetradi.txt", ios::in); break;
	}

	fin >> width;
	fin >> height;
	fin >> blocked;
	fin >> empty;


	tetradData = new char* [height];
	//create and fill in rows
	for (int i = 0; i < height; i++) {
		tetradData[i] = new char[width];//create new row
		for (int j = 0; j < width; j++) {
			fin >> tetradData[i][j];
		}
		fin.ignore(); //ignore the new line character
	}
	//close file stream
	fin.close();


}

// ----------- rotation --------------- //
void Tetrad::rotateCW() {
	//example from class
	int w = height;
	int h = width;

	char ** newmap = new char *[h];
	for (int r= 0; r < h; ++r) {
		for (int c=0; c < height;++c) {
			newmap[r][c] = tetradData[(height-1)-c][r];
		}
	}
	zeroOut(); //ref to release map resources
	width = w;
	height = h;
	tetradData = newmap;
}

void Tetrad::rotateCCW() {
}

// ------------ maitenance --------------- //
void Tetrad::zeroOut() {
	//empty memory
	for (int row = 0; row < height; row++) {
		delete tetradData[row];
	}

	//reset the variables
	height = width = 0;
	//x and y remain for the rotation functions
	//they are reset by the new tetrad function
}