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Bola.java
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Bola.java
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package pong;
import java.awt.Color;
import java.awt.Graphics;
import java.util.Random;
public class Bola
{
public int x, y, width = 25, height = 25;
public int motionX, motionY;
public Random random;
private Pong pong;
public int amountOfHits;
public Bola(Pong pong)
{
this.pong = pong;
this.random = new Random();
spawn();
}
public void update(Paddle paddle1, Paddle paddle2)
{
int speed = 5;
this.x += motionX * speed;
this.y += motionY * speed;
if (this.y + height - motionY > pong.height || this.y + motionY < 0)
{
if (this.motionY < 0)
{
this.y = 0;
this.motionY = random.nextInt(4);
if (motionY == 0)
{
motionY = 1;
}
}
else
{
this.motionY = -random.nextInt(4);
this.y = pong.height - height;
if (motionY == 0)
{
motionY = -1;
}
}
}
if (checkCollision(paddle1) == 1)
{
this.motionX = 1 + (amountOfHits / 5);
this.motionY = -2 + random.nextInt(4);
if (motionY == 0)
{
motionY = 1;
}
amountOfHits++;
}
else if (checkCollision(paddle2) == 1)
{
this.motionX = -1 - (amountOfHits / 5);
this.motionY = -2 + random.nextInt(4);
if (motionY == 0)
{
motionY = 1;
}
amountOfHits++;
}
if (checkCollision(paddle1) == 2)
{
paddle2.score++;
spawn();
}
else if (checkCollision(paddle2) == 2)
{
paddle1.score++;
spawn();
}
}
public void spawn()
{
this.amountOfHits = 0;
this.x = pong.width / 2 - this.width / 2;
this.y = pong.height / 2 - this.height / 2;
this.motionY = -2 + random.nextInt(4);
if (motionY == 0)
{
motionY = 1;
}
if (random.nextBoolean())
{
motionX = 1;
}
else
{
motionX = -1;
}
}
public int checkCollision(Paddle paddle)
{
if (this.x < paddle.x + paddle.width && this.x + width > paddle.x && this.y < paddle.y + paddle.height && this.y + height > paddle.y)
{
return 1; //bounce
}
else if ((paddle.x > x && paddle.paddleNumber == 1) || (paddle.x < x - width && paddle.paddleNumber == 2))
{
return 2; //score
}
return 0; //nothing
}
public void render(Graphics g)
{
g.setColor(Color.WHITE);
g.fillOval(x, y, width, height);
}
}