Witam wszystkich,
Piszę grę na projekt, coś ala "FlappyBird". Chcę napisać funkcję, która wraz ze wzrostem liczby punktów przyspiesza mi szybkość przesuwu ekranu.
Jak to zrobić?
Mój kod wygląda tak:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class GamePanel extends JPanel implements KeyListener {
private static final long serialVersionUID = 1L;
public int WIDTH = 706, HEIGHT = 490;
private double score = 0;
//background
private Component background1 = new Component(0, 0, 750, 490, "images//background.png");
private Component background2 = new Component(700, 0, 750, 490, "images//background.png");
//Bird
private Component bird = new Component((WIDTH/ 2 - 150), (HEIGHT /2) - 40, 50 , 36, "images//bird.png");
//Wall array
private Component[] walls = new Component[8];
//Ground
private Component ground1 = new Component(0, 445, 750, 490, "images//ground.png");
private Component ground2 = new Component(700, 445, 750, 490, "images//ground.png");
//Wall speed
private int speed = 2;
//Game Controller
private boolean started = false, gameOver = false;
//GamePanel Constructor
public GamePanel(){
super.addKeyListener(this);
super.setFocusable(true);
}
//Create the wall and
public void Start(){
createWalls();
}
//Gives bird Some Gravity
public void Gravity(){
bird.setY(bird.getY() + 3); //Starts falling by One Pixel
try{ Thread.sleep(3); } catch (Exception e) {}
// checks if it touches the ground or Sky
if(bird.getY() > 450 || bird.getY() <= 0){
// Plays hit Sound and if bird touches anything then makes gameOver true.
if(!gameOver) GameSound.hitSound();
gameOver = true;
bird.setX(-500);
}
super.repaint();
}
//Helps wall to shift from left to right
public void scrollWalls(){
for(int i = 0; i < walls.length; i+=2){
if(walls[i].getX() > - 150){
walls[i].setX(walls[i].getX() - speed);
walls[i+1].setX(walls[i+1].getX() - speed);
}
else{
walls[i].setX(700);
walls[i+1].setX(700);
}
}
try{ Thread.sleep(5); } catch(Exception e) {}
super.repaint();
}
//Helps wall to shift from left to right
public void scrollBG(){
//Moves First BG Image
if(background1.getX() > -700){
background1.setX(background1.getX() - speed/2);
} else { background1.setX(700); }
//Moves Second BG Image
if(background2.getX() > -700){
background2.setX(background2.getX() -speed/2);
} else { background2.setX(700); }
try{ Thread.sleep(5); } catch(Exception e) {}
super.repaint();
}
//Helps Ground to shift from left to right
public void scrollGround(){
//Moves First ground Image
if(ground1.getX() > -700){
ground1.setX(ground1.getX() - speed);
} else { ground1.setX(700); }
//Moves First ground Image
if(ground2.getX() > -700){
ground2.setX(ground2.getX() -speed);
} else { ground2.setX(700); }
//interval
try{ Thread.sleep(5); } catch(Exception e) {}
super.repaint();
}
//Draws All Components on panel
public void paint(Graphics g){
//Draws backgrounds
background1.draw(g);
background2.draw(g);
//Draws Bird
bird.draw(g);
//Draws Walls
for(int i = 0; i < walls.length; i++){
walls[i].draw(g);
}
////Draws Texts
if (gameOver) {
g.setFont(new Font("Arial", 1, 40));
g.setColor(Color.red.brighter().brighter().brighter());
g.drawString("Game Over!", 235, HEIGHT / 2 - 50);
}
if(!started || gameOver){
g.setColor(Color.white);
g.setFont(new Font("Arial", 1, 20));
g.drawString(String.valueOf("Press Up key to Play"), 10 , 25);
}
else if (!gameOver && started){
g.setColor(Color.green);
g.setFont(new Font("Arial", 1, 20));
g.drawString(String.valueOf("Score:"+score), 10 , 25);
}
//Draws Grounds
ground1.draw(g);
ground2.draw(g);
}
//Checks Collisions between wall and bird
public void checkCollision(){
//Creates bound of bird
Rectangle birdBound = new Rectangle( bird.getX(), bird.getY(),25,25);
//Creates bound of all walls
for(int i = 0; i < walls.length; i++){
Rectangle WallRect=new Rectangle(walls[i].getX(),walls[i].getY(),walls[i].getWidth(),walls[i].getHeight());
if(WallRect.intersects(birdBound)==true){
bird.setX(-500);
if(!gameOver) GameSound.hitSound();
gameOver = true;
break;
} else if(bird.getX() == walls[i].getX()+1){
//if bird passes one wall then counts a point
score();
}
}
}
//When any key press this code executes
public void keyPressed(KeyEvent e) {
if(e.getKeyCode() == KeyEvent.VK_UP || e.getKeyCode() == KeyEvent.VK_SPACE){
//Starts the game
if(!started) {
started = true;
}
//Restarts The Game if its Over
if(gameOver){
bird.setY((HEIGHT /2));
bird.setX(WIDTH/2 - 150);
score = 0;
gameOver = false;
}
//Flaps if key pressed
BirdFlap flap = new BirdFlap(this,bird);
flap.start();
GameSound.flapSound();
}
}
//Increments the score
public void score(){
score+= 0.5;
GameSound.pointSound();
}
public void createWalls(){
int i = 0;
int x = 600; // First walls distance from very right side
//walls width and height, width is static and height changes constantly
int width = 60, height = 280;
//1st & 2nd wall
walls[i] = new Component(x, 280, width, height, "images//wallUp.png");
i++;
walls[i] = new Component(x, -90, width, height, "images//wallDown.png");
x = walls[i].getX()+220; // 160 is the difference between wall
i++;
//3rd & 4th wall
walls[i] = new Component(x, 360, width, height, "images//wallUp.png");
i++;
walls[i] = new Component(x, -10, width, height, "images//wallDown.png");
x = walls[i].getX()+220;
i++;
//5rd & 6th wall
walls[i] = new Component(x, 280, width, height, "images//wallUp.png");
i++;
walls[i] = new Component(x, -90, width, height, "images//wallDown.png");
x = walls[i].getX()+220;
i++;
//7rd & 8th wall
walls[i] = new Component(x, 220, width, height, "images//wallUp.png");
i++;
walls[i] = new Component(x, -170, width, height, "images//wallDown.png");
x = walls[i].getX()+220;
}
//Setters anmd Getters
public boolean isStarted() {
return started;
}
public void setStarted(boolean started) {
this.started = started;
}
public boolean isGameOver() {
return gameOver;
}
public void setGameOver(boolean gameOver) {
this.gameOver = gameOver;
}
//Key Events
@Override
public void keyReleased(KeyEvent e) {
}
@Override
public void keyTyped(KeyEvent e) {
}
}