我正在尝试创建一个程序,该程序可以创建9种生物体,这些生物体是从中间生物体进化而来的。目前,我有9个节目,尽管这些是完全随机的。存储要在其他8种中使用的初始生物形态的值的最佳方法是什么?
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.Random;
import javax.swing.JPanel;
public class BiomorphObject extends JPanel {
Graphics2D g2d;
Dimension size = getSize();
int w = size.width;
int h = size.height;
Random ran = new Random();
int x1;
int x2;
int y1;
int y2;
public BiomorphObject(Graphics g){
g2d = (Graphics2D) g;
g2d.setColor(Color.BLUE);
Random ran = new Random();
int x = Math.abs(ran.nextInt(100)) % w + 120;
int y = Math.abs(ran.nextInt(100)) % h;
int xMirror = x - 120;
g2d.drawLine(120, 85, x, y);
g2d.drawLine(120, 85, 120 - xMirror, y);
x1 = x;
y1 = y;
x2 = Math.abs(ran.nextInt(50)) % w + 120;
y2 = Math.abs(ran.nextInt(50)) % h;
paintBiomorph(g);
}
public void paintBiomorph(Graphics g) {
super.paintComponent(g);
for (int i = 0; i <= 10; i++) {
int xMirror1 = x1 - 120;
int xMirror2 = x2 - 120;
g2d.drawLine(x1, y1, x2, y2);
g2d.drawLine(120 - xMirror1, y1, 120 - xMirror2, y2);
x1 = x2;
y1 = y2;
x2 = Math.abs(ran.nextInt(100)) % w + 120;
y2 = Math.abs(ran.nextInt(100)) % h;
}
}
}
这是我当前拥有的GUI的屏幕截图:
最佳答案
您不应在绘画方法中使用Random()方法。您无法控制Swing何时重新绘制组件,并且您不希望绘画随机改变。
相反,您需要在类中创建绘画方法可以用来进行自定义绘画的属性。因此,您应该创建一个Biomorph
对象。该对象将包含绘制单个Biomorph
所需的信息。它甚至应该包含一种绘制自身的方法。让我们将此方法称为paintBiomorph(Graphics)。
当您创建Biomorph对象时,您可能会有一个空的构造函数来创建一个随机的Biomorph,然后您可能会有一个将Biomporh对象作为参数的构造函数,以便可以基于“父” Biomorph创建“子” Biomorph。
然后,您可以创建一个包含多个ArrayList
对象的Biomorh
。然后,在paintComponent()
方法中循环访问ArrayList,并简单地在每个Biomorph
对象上调用paintBoimorph(GRaphics)方法。
仅在最初创建Biomorph对象时才使用Random()方法。然后,所有需要重绘的数据之后,Biomorph必须成为对象本身的一部分。
编辑:
Biomorph类可能类似于:
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.Random;
import javax.swing.JPanel;
public class Biomorph extends JPanel
{
List<Shape> lines = new ArrayList<Shape>();
//Graphics2D g2d;
//Dimension size = getSize();
//int w = size.width;
//int h = size.height;
//Random ran = new Random();
//int x1;
//int x2;
//int y1;
//int y2;
public Biomorph()
{
//g2d = (Graphics2D) g;
//g2d.setColor(Color.BLUE);
setForeground(Color.BLUE);
Random ran = new Random();
int x = Math.abs(ran.nextInt(100)) + 120;
int y = Math.abs(ran.nextInt(100));
int xMirror = x - 120;
// g2d.drawLine(120, 85, x, y);
// g2d.drawLine(120, 85, 120 - xMirror, y);
lines.add( new Line2D.Double(120, 85, x, y);
lines.add( new Line2D.Double(120, 85, -x, y);
int x1 = x;
int y1 = y;
int x2 = Math.abs(ran.nextInt(50)) + 120;
int y2 = Math.abs(ran.nextInt(50));
for (int i = 0; i <= 10; i++) {
int xMirror1 = x1 - 120;
int xMirror2 = x2 - 120;
//g2d.drawLine(x1, y1, x2, y2);
//g2d.drawLine(120 - xMirror1, y1, 120 - xMirror2, y2);
lines.add( new Line2D.Double(x1, y1, x2, y2);
lines.add( new Line2D.Double(-x1, y1, -x2, y2);
x1 = x2;
y1 = y2;
x2 = Math.abs(ran.nextInt(100)) + 120;
y2 = Math.abs(ran.nextInt(100));
}
}
@Override
protected void paintComponent(Graphics g)
{
super.paintComponent(g);
Graphics2D g2d = (Graphics2D)g.create();
g2d.setColor( getForeground() );
for (Shape line: lines)
{
g2d.fill( line );
//g2d.draw( line );
}
g2d.dispose();
}
}