Je suis un débutant au codage, et espère créer une partie de pong. Je suis assez proche, les deux pagaies bougent, et la balle rebondit sur elles lorsqu'elles se croisent. Mais j'ai un peu de mal à inverser la trajectoire de la balle une fois qu'elle passe le haut et le bas de l'écran. Je pensais que j'avais une solution, mais ça ne semble pas fonctionner.Pong: Inverser la balle aux limites supérieure et inférieure de la fenêtre
Toute aide serait grandement appréciée. Code ci-dessous.
import java.util.Random;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.newdawn.slick.Animation;
import org.newdawn.slick.AppGameContainer;
import org.newdawn.slick.BasicGame;
import org.newdawn.slick.Color;
import org.newdawn.slick.GameContainer;
import org.newdawn.slick.Graphics;
import org.newdawn.slick.Image;
import org.newdawn.slick.Input;
import org.newdawn.slick.SlickException;
import org.newdawn.slick.SpriteSheet;
import org.newdawn.slick.geom.Rectangle;
public class PongAttempt extends BasicGame{
Image player1Img;
Image player2Img;
Image ball;
float ballx = 500;
float bally = 500;
float x = 0;
float y = 0;
float bx = 100;
float by = 40;
float velocityx = -.10f;
float velocityy = 0f;
float player1Vel = 0;
float player2Vel = 0;
Rectangle player1Dim;
Rectangle player2Dim;
Rectangle ballDim;
public PongAttempt(String gamename){super(gamename);}
@Override
public void init(GameContainer gc) throws SlickException {
player1Img = new Image("res/troll.png");
player2Img = new Image("res/troll.png");
ball = new Image("res/ball.png");
player1Dim = new Rectangle(x, y, player1Img.getWidth(), player1Img.getHeight());
player2Dim = new Rectangle(bx, by, player2Img.getWidth(), player2Img.getHeight());
ballDim = new Rectangle(ballx, bally, ball.getWidth(), ball.getHeight());
bx = gc.getWidth() - player2Img.getWidth();
by = 0;
ballx = gc.getWidth()/2;
bally = gc.getHeight()/2;
}
@Override
public void update(GameContainer gc, int i) throws SlickException {
}
@Override
public void render(GameContainer gc, Graphics g) throws SlickException
{
g.setBackground(Color.black);
//Player 1 move and generate boundaries
if(gc.getInput().isKeyDown(Input.KEY_W) && y > 0) {
y = y - 0.2f;
player1Vel = -0.2f;
}
if(gc.getInput().isKeyDown(Input.KEY_S) && y < (gc.getHeight() - player1Img.getHeight())) {
y = y + 0.2f;
player1Vel = 0.2f;
}
//Player 2 Move and generate boundaries
if(gc.getInput().isKeyDown(Input.KEY_O) && by > 0) {
player2Vel = -0.2f;
by = by + player2Vel;
}
if(gc.getInput().isKeyDown(Input.KEY_L) && by < (gc.getHeight() - player2Img.getHeight())) {
player2Vel = 0.2f;
by = by + player2Vel;
}
if(gc.getInput().isKeyDown(Input.KEY_ESCAPE)){
gc.exit();
}
player1Dim.setX(x);
player1Dim.setY(y);
player2Dim.setX(bx);
player2Dim.setY(by);
ballDim.setX(ballx);
ballDim.setY(bally);
if(ballDim.intersects(player1Dim)){
velocityx = velocityx * -1;
velocityy = player1Vel;
}
if(ballDim.intersects(player2Dim)){
velocityx = velocityx * -1;
velocityy = player2Vel;
}
//This is where I tried to get the ball to bounce off the top and bottom
if(ballx == 0 - ball.getHeight()){
velocityx = velocityx * -1;
}
if(ballx == gc.getHeight() - ball.getHeight()){
velocityx = velocityx * -1;
}
ballx = ballx + velocityx;
bally = bally + velocityy;
player1Img.draw(x, y);
player2Img.draw(bx, by);
ball.draw(ballx, bally);
}
public static void main(String[] args)
{
try
{
AppGameContainer appgc;
appgc = new AppGameContainer(new PongAttempt("Simple Slick Game"));
appgc.setDisplayMode(appgc.getScreenWidth(), appgc.getScreenHeight(), true);
appgc.start();
}
catch (SlickException ex)
{
Logger.getLogger(PongAttempt.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
Merci, je l'ai fait fonctionner maintenant. – SykoTron