Question

我有一个球员和子弹。子弹在固定的地方产卵。如何让它们在我的播放器前面产生？如何将我的播放器X和Y放入下面的代码中？我想不明白。这是KeyInput类。空间拍摄。当我开枪时，我希望子弹能够在我的玩家身上产生：

package Game;

import java.awt.Color;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

import Game.Game.STATE;

public class KeyInput extends KeyAdapter{

    private Handler handler;
    private boolean[] keyDown = new boolean[4];

    Game game;

    public KeyInput(Handler handler, Game game){
        this.handler = handler;

        this.game = game;

        keyDown[0] = false;
        keyDown[1] = false;
        keyDown[2] = false;
        keyDown[3] = false;
    }

    public void keyPressed(KeyEvent e){
        int key = e.getKeyCode();

        for(int i = 0; i < handler.object.size(); i++){
            GameObject tempObject = handler.object.get(i);

            // Player Movement
            if(tempObject.getid() == ID.Player){
                if(key == KeyEvent.VK_W) { tempObject.setVelY(-5); keyDown[0] = true; }
                if(key == KeyEvent.VK_S) { tempObject.setVelY(5); keyDown[1] = true; }
                if(key == KeyEvent.VK_A) { tempObject.setVelX(-5); keyDown[2] = true; }
                if(key == KeyEvent.VK_D) { tempObject.setVelX(5); keyDown[3] = true; }

                //Player Shoot
                if(key == KeyEvent.VK_SPACE){
                    handler.addObject(new PlayerBullet(400, 400, ID.PlayerBullet, handler));
                }
            }
        }
    }

    public void keyReleased(KeyEvent e){
        int key = e.getKeyCode();

        for(int i = 0; i < handler.object.size(); i++){
            GameObject tempObject = handler.object.get(i);

            // Player Movement Release
            if(tempObject.getid() == ID.Player){
                if(key == KeyEvent.VK_W) keyDown[0]=false; //tempObject.setVelY(0);
                if(key == KeyEvent.VK_S) keyDown[1]=false; //tempObject.setVelY(0);
                if(key == KeyEvent.VK_A) keyDown[2]=false; //tempObject.setVelX(0);
                if(key == KeyEvent.VK_D) keyDown[3]=false; //tempObject.setVelX(0);

                // Y Movement
                if(!keyDown[0] && !keyDown[1]) tempObject.setVelY(0);
                // X Movement
                if(!keyDown[2] && !keyDown[3]) tempObject.setVelX(0);
            }
        }
        if(key == KeyEvent.VK_P){
            if(Game.gameState == STATE.Game){
                if(Game.paused) Game.paused = false;
                else Game.paused = true;
            }
        }
        if(key == KeyEvent.VK_ESCAPE){
            System.exit(1);
        }
    }
}

这是Player类：

package Game;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.util.Random;

public class Player extends GameObject {

    public static float PlayerHealth = 100;

    Random r = new Random();
    Handler handler;

    public Player(int x, int y, ID id, Handler handler){
        super(x, y, id);
        this.handler = handler;
    }

    public Rectangle getBounds(){
        return new Rectangle((int)x, (int)y, 32, 32);
    }

    public void tick(){
        timer--;

        x += velX;
        y += velY;

        PlayerHealth = (int)Game.clamp(PlayerHealth, 0, 100);
        x = Game.clamp((int)x, 0, Game.WIDTH - 38);
        y = Game.clamp((int)y, 0, Game.HEIGHT - 61);

        handler.addObject(new Trail((int)x, (int)y, ID.Trail, Color.GREEN, 32, 32, 0.1f, handler));
        handler.addObject(new PlayerBullet((int)x+16, (int)y-12, ID.PlayerBullet, handler));

        collision();
    }

    private void collision(){
        for(int i = 0; i < handler.object.size(); i++){

            GameObject tempObject = handler.object.get(i);

            if (tempObject.getid() == ID.BasicEnemy || tempObject.getid() == ID.PlayerBullet){
                if(getBounds().intersects(tempObject.getBounds())){
                    // Collision code
                    HUD.PlayerHealth -= 2;
                }
            }
        }
    }

    public void render(Graphics g){

        // Show borders
        Graphics2D g2d = (Graphics2D) g;
        g.setColor(Color.GREEN);
        g2d.draw(getBounds());

        g.setColor(Color.GREEN);
        g.fillRect((int)x, (int)y, 32, 32);
    }
}

我的播放器移动键位于KeyInput中，所以我认为它可以访问。我只需要弄清楚如何将当前的400,400更改为我的玩家X和Y.

Answer 1

我解决了。

handler.addObject(new PlayerBullet((int)tempObject.getX()+10, (int)tempObject.getY()-12, ID.PlayerBullet, handler));

我忘记了tempObject.getY中的（）

我很蠢：解决...

如何在我的播放器上生成一个对象？

1 个答案: