#include <iostream>

#include "ball.h"
#include "ansi.h"
#include <iostream>
#include <cstdlib>

using namespace std;

//constructor
Ball::Ball() {

}

//bounce functions
void
Ball::bouncePaddle(int y) {
dy += (-y) * 0.5;
dx = -dx;
if(dx<0)
dx -= 0.5;
else
dx += 0.5;
}

void
Ball::bounceWall() {
dy = -dy;
}

//go back to the center
void
Ball::reset() {

//position in the center
x = 40;
y = 12;

//get a random speed
dy = 0;
dx = 2 * (rand() % 7 <3) ? -1 : 1;
}

//standard element stuff
void
Ball::draw() {
cout << whiteBackground;
cout << cursorPosition((int) x, (int) y) << " "
<< cursorPosition((int) x, (int) y+1) << " ";
cout << normal;
cout.flush();
}

void
Ball::erase() {
cout << normal;
cout << cursorPosition((int) x, (int) y) << " "
<< cursorPosition((int) x, (int) y+1) << " ";
cout.flush();
}

void
Ball::update() {
if(dx > 5.0)
dx = 5.0;
if(dy > 5.0)
dy=5.0;

//updates position based on the speed
x += dx;
y += dy;
}

int
Ball::getX() {
return (int) x;
}

int
Ball::getY() {
return (int) y;
}