斯利克动画 - 必须有每帧时长 [英] Slick Animation - There must be one duration per frame

问题描述

我试图做一个游戏的油滑，我开始之前，我想测试我将使用直升机动画。它只是打开，然后立即用这些错误关闭：

I am trying to make a game in Slick, and before I start I want to test the helicopter animation I will be using. It just opens and then immediately closes with these errors:

在异常线程主了java.lang.RuntimeException：必须有每帧时长
    在org.newdawn.slick.Animation（Animation.java:111）
    在javagame.Menu.init（Menu.java:22）
    在javagame.Game.initStatesList（Game.java:19）
    在org.newdawn.slick.state.StateBasedGame.init（StateBasedGame.java:170）
    在org.newdawn.slick.AppGameContainer.setup（AppGameContainer.java:433）
    在org.newdawn.slick.AppGameContainer.start（AppGameContainer.java:357）
    在javagame.Game.main（Game.java:29）

Exception in thread "main" java.lang.RuntimeException: There must be one duration per frame at org.newdawn.slick.Animation.(Animation.java:111) at javagame.Menu.init(Menu.java:22) at javagame.Game.initStatesList(Game.java:19) at org.newdawn.slick.state.StateBasedGame.init(StateBasedGame.java:170) at org.newdawn.slick.AppGameContainer.setup(AppGameContainer.java:433) at org.newdawn.slick.AppGameContainer.start(AppGameContainer.java:357) at javagame.Game.main(Game.java:29)

下面是我的code：

package javagame;

import org.newdawn.slick.*;
import org.newdawn.slick.state.*;
import org.newdawn.slick.tests.AnimationTest;


public class Menu extends BasicGameState {

      Animation sprite, fly;


    public Menu(int state){

        }

        public void init(GameContainer gc, StateBasedGame sbg) throws SlickException{
            Image [] flyanimation = {new Image("res/copter1.png"), new Image("res/copter2.png"), 
                    new Image("res/copter3.png"), new Image("res/copter4.png")};
            int [] duration = {300, 300};

            fly = new Animation(flyanimation, duration, false);
            sprite = fly;
        }

        public void render(GameContainer gc, StateBasedGame sbg, Graphics g)throws SlickException{
            sprite.draw(150, 150);
        }

        public void update(GameContainer gc, StateBasedGame sbg, int delta) throws SlickException{
            Input input = gc.getInput();
            if(input.isKeyDown(Input.KEY_SPACE)){
                sprite = fly;
                sprite.update(delta);
            }
        }

        public int getID(){
            return 0;
        }
    } 

感谢您的帮助！如果我是完全错误的，我怎么会对此，我很抱歉。我便无法找到一个体面的教程救我一命！

Thanks for the help! If I am completely wrong on how I am going about this, I am sorry. I could't find a decent tutorial to save my life!

推荐答案

的问题是，你正在过动画的构造函数4张图片和2只duration值试试这个：

the problem is that you are passing the Animation constructor 4 Images and only 2 duration values, try this:

                public void init(GameContainer gc, StateBasedGame sbg) throws SlickException{
        Image [] flyanimation = {new Image("res/copter1.png"), new Image("res/copter2.png"), 
                new Image("res/copter3.png"), new Image("res/copter4.png")};
        int [] duration = {300, 300, 300, 300};

        fly = new Animation(flyanimation, duration, false);
        sprite = fly;
    }

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