Thread: Tortoise and hare race (track not refreshing correctly)

i have to create a simulated race between a hare and tortoise based on a random set of moves. The two race across the screen but i can't figure out how to keep both objects on the screen at once. i'm currently trying "\r" in different places but so far it only manages to keep the tortoise on screen and erases the hare position. Here is the code.

Code:

do 
    {


        h1.getMove(); // get the x value for the hare
        Sleep(500);
        t1.getMove(); // get the x value for the tortoise
        Sleep(500);


        displayDots(HposPtr, hareGo); // this currently refreshes only the hare line (line 8)


        Console::setColour(Console::GREEN);
        cout << "H";        // displays H along the race track


        displayDots(TposPtr, tortGo); // refreshes the tortoise line and places a T at x position


        Console::setColour(Console::LIGHT_RED);
        cout << "T";
        turns++;


    } while (h1.xptr <= endptr); // ends the loop at the finish

Here is the refresh line.

Code:

    Console::setCursorPosition(x, y); // refreshes the current line
    cout << "\r";

The function then goes on to display the race track and the x position of the current objects turn. but it only displays a T and not a H.

You haven't really given enough information for us to help you. If you can you should post your entire program. You should also explicitly mention the OS you are using (presumably Windows) and whether you want it to be able to run on other OS's (e.g., linux).

There's some possibly strange stuff in the code you've posted, although that depends on exactly what is going on in the code you didn't post. For instance, it doesn't seem to make sense to have a delay (Sleep) after the getMove calls if all those are doing is generating a random move and not actually moving anything on the screen.

If you don't want to publicize your code because you don't want other people to see it, you could put it on a file hosting site and PM me a link to it. TinyUpload seems pretty quick and easy, no sign-up required, 50MB max. Only people that you send a link to can access the file and it will be deleted if no one accesses it for 100 days.

(Rest of the code and a more expanded explanation)
i have to create a simulated race between a hare and tortoise based on a random set of moves. The two race across the screen but i can't figure out how to keep both objects on the screen at once. i'm currently trying "\r" in different places but so far it only manages to keep the tortoise on screen and erases the hare position. It's for uni coursewrokHere is the coursework. the program must simulate two objects taking turns and display this in the console window. I need to find a way to display a kind of race track on the screen with a H representing the hare and T for tortoise. each time one moves i need to delete the previous H. so far i've managed to have the console completely refresh and display the track + 1 object, but i need to have both on the screen.
i'm programming in visual studio 2015 on windows 10, and just need to have it compile correctly and display a winner. simulating a random race.

Code:

#include <iostream>
#include "console.h"	// holds commands to change the console display
#include "Hare.h"		// holds the hare class
#include "Tortoise.h"	// holds the tortoise class
using namespace std;


// function prototype to display race track
void displayDots(int x, int y);


int main()
{
	const int END_RACE = 100;
	const int *endptr = &END_RACE;


	int hareGo = 8;		// holds the y position for the hare
	int tortGo = 10;	// holds the y position for the tortoise
	int turns = 0;		// count how many turns were done


	// initialize the objects
	Hare h1;
	Tortoise t1;


	// pointer to the object x positions
	int &HposPtr = *h1.xptr;
	int &TposPtr = *t1.xptr;
	displayDots(HposPtr, 8);


	do 
	{


		h1.getMove(); // get the x value for the hare
		Sleep(500);
		t1.getMove(); // get the x value for the tortoise
		Sleep(500);


		displayDots(HposPtr, hareGo); // this currently refreshes only the hare line (line 8)


		Console::setColour(Console::GREEN);
		cout << "H";		// displays H along the race track


		displayDots(TposPtr, tortGo); // refreshes the tortoise line and places a T at x position


		Console::setColour(Console::LIGHT_RED);
		cout << "T";
		turns++;


	} while (h1.xptr <= endptr); // ends the loop at the finish


	if (h1.xptr >= endptr)
	{
		cout << "turns taken " << turns << endl;
		cout << "winner" << endl;
	}
	system("pause");


	return 0;
}


/* function to display the race track on the window
and set the position for each object after it takes
its move */
void displayDots(int x, int y)
{
	//Console::clear();


	Console::setCursorPosition(x, y); // refreshes the current line
	cout << "\r";


	Console::setCursorPosition(6, 98);
	Console::setColour(Console::AQUA);
	cout << "~~~~~" << endl;
	Console::setColour(Console::LIGHT_PURPLE);			// sets the cursor position to the end of the
	Console::setCursorPosition(7, 100);					// track. then displays finish vertically with
	cout << "F" << endl;								// "finish poles" at either side to simulate
	Console::setCursorPosition(8, 100);					// a finish line
	cout << "I" << endl;								
	Console::setCursorPosition(9, 100);					
	cout << "N" << endl;
	Console::setCursorPosition(8, 0);
	for (int i = 0; i < 100; i++)
	{
		// display dots across the console for the race track
		Console::setColour(Console::LIGHT_AQUA);
		cout << ".";
	}


	cout << endl;		// space in between race tracks
	cout << endl;


	for (int i = 0; i < 100; i++)
	{
		// display dots again
		cout << ".";
	}
	Console::setColour(Console::LIGHT_PURPLE);


	Console::setCursorPosition(10, 100);				// other half of the finish line
	cout << "I" << endl;
	Console::setCursorPosition(11, 100);
	cout << "S" << endl;
	Console::setCursorPosition(12, 100);
	cout << "H" << endl;
	Console::setCursorPosition(13, 98);
	Console::setColour(Console::AQUA);
	cout << "~~~~~" << endl;


	cout << endl;
	Console::setCursorPosition(y, x);		// sets the cursor position back to the current objects
											// x and y coordinates


}

Well, I still can't run it.
Where's console.h, Hare.h, and Tortoise.h?