// Objective: Draw an 8-by-8, red and white checkers board

#include "std_lib_facilities.h"
#include <iostream>
#include "Simple_window.h"

int main(){
try{
    // create a window in the center of the screen wiht size: 600x600
    int wWidth = 660;
    int wHeigth = 660;
    Point centerScreen(x_max()/2 - wWidth/2, y_max()/2 - wHeigth/2);
    Simple_window sw(centerScreen, 660, 660, "Chapter 12 Exercise 3");

    // starting upper left coordinates of the window + 10 pixels frame
    int tlx = sw.x_max() - 650;
    int tly = sw.y_max() - 650;
    // Point topLeftCheckers(tlx, tly);
    // sqrSize == step of drawing
    int sqrSize = 80;

    // vector holding all (pointes to) rectangles
    vector<Graph_lib::Rectangle*> rects;
    int numOfSquares = 64;
    rects.reserve(numOfSquares);

    // instantiate all the squares as rectangle objects with: heigth = width
    int numOfColumns = 8;
    int numOfRows = 8;
    for(size_t i=0; i < numOfColumns; ++i){
        for(size_t j=0; j < numOfColumns; ++j){
            // create a 64 conjugate squares with size = 80,
            Graph_lib::Rectangle* r = new Graph_lib::Rectangle(Point(tlx + sqrSize*i, tly + sqrSize*j), sqrSize, sqrSize);
            // fill the consequtive squares with white or red color
            if ((i+j) % 2 == 0) r->set_fill_color(Color::red);
            else r->set_color(Color::white);
            // save object in vector
            rects.push_back(r);
        }
    }
    // attach all the rectangle objects to the window object
    for(size_t k=0; k < rects.size(); ++k) sw.attach(*rects[k]);

    sw.wait_for_button();

}catch(exception& e){
    cerr << e.what() << endl;
    getchar();

}catch(...){
    cerr <<"Default exception!"<< endl;
    getchar();
}
return 0;
}