// Copyright 1999
// College of Computer Science
// Northeastern University Boston MA 02115

// This software may be used for educational purposes as long as this copyright
// notice is retained at the top of all files

// Should this software be modified, the words "Modified from Original" must be
// included as a comment below this notice

// All publication rights are retained.  This software or its documentation may
// not be published in any media either in whole or in part.

///////////////////////////////////////////////////////////////////////////////

//	Lab:	Loops Lab
//	Goals:	Produce simple animation using for loops
//  Prepared by Harriet Fell, 9/28/96; revised 9/20/98; 
//  revised for Visual C++ 10/16/99

//	STUDENT NAME:
//	STUDENT ID:
//	DATE:

///////////////////////////////////////////////////////////////////////////////

// The standard include files that include traditional C and C++ headers and
// many other Core Tools headers ... see CHeaders.h for additional details

#include "IOTools.h"
#include "Graphics.h"
#include "Random.h"

// Enter project specific include files here as well as classes and functions
// that you choose to define in the main shell rather than in separate files
// ¥¥¥ FUNCTION PROTOTYPES

void Credits(void);						// Identify yourself as the programmer
void FixedTrack(void);					// Draw fixed track and roll ball in it leaving trace
void Spots(void);						// Put yellow spots around the track
void RandomTrack(void);					// Draw random track and roll ball in it leaving trace

int main(int argc, char* argv[]) {

	// Use the following line if you choose NOT to open any graphics windows
	// InitializeConsole();

	// Build graphics window 0
	GraphicsWindow GW0(400, 400);

	// Move the console below graphics window 0
	ConsolePlaceBelow(0);

	// Give the console the focus for user interaction
	MakeConsoleForeground();

//////////

	// Enter the main program here
	SetRandomSeed();					// this function is defined in Random.h
										// it makes the random numbers different in each run

	Credits();
	FixedTrack();
	PressReturn("");
	
	Spots();
	PressReturn("");
	
	ClearDrawing();
	RandomTrack();

//////////

	// The lines below make sure that the graphics windows remain open just
	// before the program terminates

	PressReturn("\nThe main program is about to terminate\n");

	return 0;
}


void Credits(void) {				// identify yourself as the programmer
	// ¥?¥?¥	(0) Copy the credits from another program you've written 
	//				or write a new version here.
}	// end Credits

void FixedTrack(void){
	cout << "Fixed Track" << endl;

	const margin = 20; 	// distance of from edge of outer square to edge of drawing window.
	const radius = 13; 	// radius of the ball
	
	FrameRect(20, 20, 380, 380); 	// The outer square
	FrameRect(50, 50, 350, 350); 	// The inner square
	
// Roll a ball around the track
	int x; 			  	// x is initialized in the first loop
	int y = 35; 		// y is set to the middle height of the top part of the track
	
	// Across the top
	for ( x = 35; x < 365; x++){
		PaintCircle(x, y, radius);
		Sleep(1); 		// waits 1/1000 second, but it seems longer
	}
	
	// ¥?¥?¥	(1) Move the ball down the right side
	
	// ¥?¥?¥	(2) Move the ball back across the bottom
	
	// ¥?¥?¥	(3) Move the ball up the left side

	// Now that you've made it all the way around,
	// Sound the System Alert/Bell 
	cout << '\a' << endl;
}

void Spots(void){
	cout << "Yellow Spots" << endl;

	const margin = 20; // distance of from edge of outer square to edge of drawing window.
	const radius = 10; // radius of the ball
	
	// ¥?¥?¥	(4) // Make the drawing color yellow
	
// Make spots around the track
	
	// ¥?¥?¥	(5) // Copy the loops from FixedTrack() 
					// then change the iteration-statement in each loop 
					// to make the centers of the balls 30 pixels apart.
					
	// ¥?¥?¥	(6) // Play the System Beep sound
	
	// ¥?¥?¥	(7) // Set the drawing color back to black
}

void RandomTrack(void){
// A ball will roll around a track between two squares, leaving the trace of its path.
	cout << "Random Track" << endl;


	short margin = RandomLong(10, 80);  // distance of from edge of outer square to edge of drawing window.
	short radius = RandomLong(10, 30);  // radius of the ball

// Draw the track 
	// left, top, right, bottom define the outer square
	short left = margin;
	short top = margin;
	short right = 400 - margin;
	short bottom = 400 - margin;
	short width = 2*(radius + 2); // width of track is the diameter of ball plus 4.
	
	FrameRect(left, top, bottom, right); // The outer square
	// ¥?¥?¥	(8) Add the inner square to finish the track
		
// Roll a ball around the track
	// ¥?¥?¥	(9) // Declare x and y and set y to the middle height of the top part of the track
	
	// ¥?¥?¥	(10)// Write 4 for loops that will roll the ball around the track leaving a black trace
					// Your initial-statement and condition must depend on "margin" and "radius"
					
	// ¥?¥?¥	(11)// In each loop, add a statement before the PaintCircle statement 
					// that will make the drawing color depend on x and y
					// Remember that each of the red, green, and blue values should be between 0 and 255.

}