slick2d鼠标悬停区域？

Question

我在Google中找不到答案，但是Mouse Over Area对于Slick2D？谷歌给我的结果是Java的MouseOverArea。我只想知道Slick2D是否有MouseOverArea，以及它的外观。

这里是我的代码：

Game类

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

public class Game extends StateBasedGame { 

public static final String gamename = "Life - Alpha"; 
public static int splash = 0; 
public static int menu = 1; 
public static int loading = 2; 
public static int play= 3; 

public Game(String gamename) { 
    super(gamename); 
} 

public void initStatesList(GameContainer gc) throws SlickException { 
    this.addState(new SplashScreen (splash)); 
    this.addState(new Menu (menu)); 
    this.addState(new Exit (exit)); 
    this.addState(new Loading (loading)); 
    this.addState(new Play(play)); 
    this.enterState(0); 
} 

public static void main(String[] args) { 

    AppGameContainer app; 
    try { 
     app = new AppGameContainer(new Game(gamename)); 
     app.setDisplayMode(800, 600, false); 
     app.start(); 
    } catch (SlickException e) { 
     e.printStackTrace(); 
    } 

} 
} 

SplashScreen类：

import org.newdawn.slick.GameContainer; 
import org.newdawn.slick.Graphics; 
import org.newdawn.slick.Image; 
import org.newdawn.slick.SlickException; 
import org.newdawn.slick.state.BasicGameState; 
import org.newdawn.slick.state.StateBasedGame; 

public class SplashScreen extends BasicGameState { 
Image splash; 

private int elapsedTime; 
private final int DELAY = 3000; 

public SplashScreen(int state) { 

} 

public void init(GameContainer gc, StateBasedGame sbg) throws SlickException { 
    splash = new Image("res/SplashScreen.png"); 

} 

public void render(GameContainer gc, StateBasedGame sbg, Graphics g) throws SlickException { 
    g.drawImage(splash, 0, 0); 

} 

public void update(GameContainer gc, StateBasedGame sbg, int delta) throws SlickException { 
    elapsedTime += delta; 

    if(elapsedTime >= DELAY) { 
     sbg.enterState(1); 
    } 
} 

public int getID() { 
    return 0; 
} 

} 

Menu类：

import org.lwjgl.input.Mouse; 
import org.newdawn.slick.*; 
import org.newdawn.slick.state.*; 

public class Menu extends BasicGameState { 

public Menu(int state) { 

} 

public void init(GameContainer gc, StateBasedGame sbg) throws SlickException { 

} 

public void render(GameContainer gc, StateBasedGame sbg, Graphics g) throws SlickException { 

    Image background = new Image("res/Background.png"); 
    g.drawImage(background, 0, 0); 

    Image logo = new Image("res/Logo.png"); 
    g.drawImage(logo, 275, 50); 

    Image playButton = new Image("res/Play button.png"); 
    g.drawImage(playButton, 210, 250); 

} 

public void update(GameContainer gc, StateBasedGame sbg, int delta) throws SlickException {  

    Input input = gc.getInput(); 
    int xpos = Mouse.getX(); 
    int ypos = Mouse.getY(); 


    if ((xpos > 300 && xpos < 510) && (ypos > 230 && ypos < 260)) { 

     if (input.isMousePressed(0)) { 
      sbg.enterState(2); 
     } 
        //I want to put the Slick2D MouseOverArea code here... 
        //So then when I put the mouse over the playButton, something will display. 
    } 
} 

public int getID() { 
    return 1; 
} 

} 

Loading类：

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

public class Loading extends BasicGameState { 

private int elapsedTime; 
private final int DELAY = 5000; 

public Loading(int state) { 
} 

public void init(GameContainer gc, StateBasedGame sbg) throws SlickException { 

} 

public void render(GameContainer gc, StateBasedGame sbg, Graphics g) throws SlickException { 

    Image background = new Image("res/Back.png"); 
    g.drawImage(background, 0, 0); 

    Image loading = new Image("res/Loading.png"); 
    g.drawImage(loading, 210, 150); 

} 

public void update(GameContainer gc, StateBasedGame sbg, int delta) throws SlickException { 
    elapsedTime += delta; 

    if(elapsedTime >= DELAY) { 
     sbg.enterState(3); 
    } 
} 
public int getID() { 
    return 2; 
} 

} 

Play类：

我的工作仍然...但这个类不需要MouseOverArea，Menu类呢。

---

这就是我上面的代码。我只需要MouseOverArea为Slick2D。谷歌没有帮助。希望你能。

另外，你能有一个TextField在Slick2D？我不知道我是否可以。我知道在正常的Java你可以，但你可以在Slick2D？

如果有任何错误，请不要担心，我可以解决它们。

感谢

Answer 1

是不是摆在这里的代码？

if ((xpos > 300 && xpos < 510) && (ypos > 230 && ypos < 260)) { 
     //mouseover 
     if (input.isMousePressed(0)) { 
      sbg.enterState(2); 
     } 

    } 
}