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我創建了一個基於骰子的遊戲骰子游戲。我創建了我的遊戲邏輯,但我試圖實現一個GUI。我爲這兩個骰子創建了我的Dice和Dice組件。如果我一次將我的骰子添加到框架中,它們都可以工作,但只要我嘗試並同時添加到框架並運行我的擲骰子游戲,框架就是空的。在框架中添加多個擺動/ awt形狀
CrapsGame代碼:
package crapsgame;
import java.awt.FlowLayout;
import javax.swing.*;
public class CrapsGameTester
{
/**
* @param args the command line arguments
*/
public static void main(String[] args)
{
JFrame frame = new JFrame("Craps-Game");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
final int FRAME_WIDTH = 400;
final int FRAME_HEIGHT = 600;
frame.setSize(FRAME_HEIGHT, FRAME_WIDTH);
CrapsGame game = new CrapsGame();
JPanel panel = new JPanel(new FlowLayout());
frame.add(panel);
Dice1Component dice1 = new Dice1Component(6);
Dice2Component dice2 = new Dice2Component(6);
panel.add(dice1);
panel.add(dice2);
String message = game.doFirstRoll();
System.out.println(message);
while(!game.isOver())
{
message = game.rollAgain();
System.out.println(message);
}
if(game.isWon())
System.out.println("You win, big man!");
else
System.out.println("Loser ...");
frame.setVisible(true);
}
}
Dice1代碼:
package crapsgame;
import java.awt.*;
public class Dice1
{
int sides;
int xCoord = 150;
int yCoord = 130;
public Dice1(int s)
{
sides = s;
}
/**
*
* @param g2 Graphics2D object used by draw method
*/
public void draw(Graphics2D g2)
{
g2.setColor(Color.BLACK);
g2.fillRect(xCoord, yCoord, 100, 100);
g2.setColor(Color.WHITE);
switch (sides)
{
case 1:
g2.fillOval(xCoord + 40, yCoord + 40, 20, 20);
break;
case 2:
g2.fillOval(xCoord + 15, yCoord + 15, 20, 20);
g2.fillOval(xCoord + 65, yCoord + 65, 20, 20);
break;
case 3:
g2.fillOval(xCoord + 15, yCoord + 15, 20, 20);
g2.fillOval(xCoord + 40, yCoord + 40, 20, 20);
g2.fillOval(xCoord + 65, yCoord + 65, 20, 20);
break;
case 4:
g2.fillOval(xCoord + 15, yCoord + 15, 20, 20);
g2.fillOval(xCoord + 15, yCoord + 65, 20, 20);
g2.fillOval(xCoord + 65, yCoord + 15, 20, 20);
g2.fillOval(xCoord + 65, yCoord + 65, 20, 20);
break;
case 5:
g2.fillOval(xCoord + 15, yCoord + 15, 20, 20);
g2.fillOval(xCoord + 15, yCoord + 65, 20, 20);
g2.fillOval(xCoord + 65, yCoord + 15, 20, 20);
g2.fillOval(xCoord + 65, yCoord + 65, 20, 20);
g2.fillOval(xCoord + 40, yCoord + 40, 20, 20);
break;
case 6:
g2.fillOval(xCoord + 20, yCoord + 20, 20, 20);
g2.fillOval(xCoord + 20, yCoord + 45, 20, 20);
g2.fillOval(xCoord + 20, yCoord + 70, 20, 20);
g2.fillOval(xCoord + 60, yCoord + 20, 20, 20);
g2.fillOval(xCoord + 60, yCoord + 45, 20, 20);
g2.fillOval(xCoord + 60, yCoord + 70, 20, 20);
break;
}
}
}
Dice1Component代碼:
package crapsgame;
import java.awt.*;
import javax.swing.*;
public class Dice1Component extends JComponent
{
private int sides;
public Dice1Component(int s)
{
sides = s;
}
public void setSide(int s)
{
sides = s;
}
@Override
public void paintComponent(Graphics g)
{
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
Dice1 dice1 = new Dice1(sides);
dice1.draw(g2);
}
}
,我讀了不止一個組件添加到您必須使用的一框JPanel,但這似乎也不適用於我。
我很好奇你爲什麼不把兩個骰子都畫在同一個組件上?我也不會在'paintComponent'方法中創建Dice。保持它作爲一個班級成員。有兩個班級成員,每個骰子一個。你可以爲每個骰子設置一個setter。如果你打算有很多骰子,那麼也許你可以創建一個Dice的Map,並通過鍵訪問每個骰子。但通常,我只會使用_one_繪圖表面。 – 2014-11-02 16:28:22
是的,作爲@peeskillet:考慮讓Dice成爲一個邏輯類,知道如何繪製自己,但不是GUI類,也不是擴展Swing組件的類。考慮創建一個繪製所有骰子的繪圖JPanel,並避免在paintComponent中創建對象和變量。您無法控制何時或是否會調用該方法,因此沒有程序邏輯應該放在它的內部,只需修改代碼即可。 – 2014-11-02 16:41:58