/********************************************************************************************
Step1.cpp
	Jim Millard
	for CO311/Spring 2000

   Simple program that displays a 4x4 blue/red checkerboard

   Uses the ezwin API
********************************************************************************************/
#include <iostream>
#include <string>
using namespace std;

#include "ezwin.h"
#include "rect.h"

void DrawCheckerboard(SimpleWindow& W);  //required prototype

int ApiMain()
   {
   //create the primary window
   SimpleWindow W("Exercise 3.22, Step 1");
   W.Open();

   DrawCheckerboard(W);

   //wait for input prior to quitting
   char ch;
   cout << "Enter a character to continue";
   cin >> ch;

   Terminate();
   return 0;
   }

void DrawCheckerboard(SimpleWindow& W)
   {
   const float height=2., //static height of all blocks
               width =2.; //static width of all blocks
   float row; //position of the center of the row

   //Draw the rectangles
   //first row
   row = 1.;
   RectangleShape R11(W,1.,row,Blue,width,height);
   R11.Draw();
   RectangleShape R12(W,3.,row,Red,width,height);
   R12.Draw();
   RectangleShape R13(W,5.,row,Blue,width,height);
   R13.Draw();
   RectangleShape R14(W,7.,row,Red,width,height);
   R14.Draw();

   //second row
   row += height;
   RectangleShape R21(W,1.,row,Red,width,height);
   R21.Draw();
   RectangleShape R22(W,3.,row,Blue,width,height);
   R22.Draw();
   RectangleShape R23(W,5.,row,Red,width,height);
   R23.Draw();
   RectangleShape R24(W,7.,row,Blue,width,height);
   R24.Draw();

   //third row
   row += height;
   RectangleShape R31(W,1.,row,Blue,width,height);
   R31.Draw();
   RectangleShape R32(W,3.,row,Red,width,height);
   R32.Draw();
   RectangleShape R33(W,5.,row,Blue,width,height);
   R33.Draw();
   RectangleShape R34(W,7.,row,Red,width,height);
   R34.Draw();

   //fourth row
   row += height;
   RectangleShape R41(W,1.,row,Red,width,height);
   R41.Draw();
   RectangleShape R42(W,3.,row,Blue,width,height);
   R42.Draw();
   RectangleShape R43(W,5.,row,Red,width,height);
   R43.Draw();
   RectangleShape R44(W,7.,row,Blue,width,height);
   R44.Draw();

   return;
   } //DrawCheckerboard