import java.applet.*; import java.awt.*; import java.awt.event.*; import java.util.*; import java.io.*; public class kadai5c extends Applet { Dimension d; Panel p; TextField nTextField, sTextField, aTextField, kTextField; Button boton1,boton2,boton3,boton4; double L; // tamanio del arbol double t0 = 90.0 * (Math.PI/180.0); double t1 = 60.0 * (Math.PI/360.0); double t2; // = 20.0 * (Math.PI/180.0); // 30 double t3; double dd, ang; double t; int n; double dx = 0.7; // tamanio(largo) de las ramitas double dy = 0.7; double tx = 0.95; // tamanio(largo) de las ramitas double ty = 0.95; double px = 0.5; // tamanio(largo) de las ramitas double py = 0.5; int angle = 30; double z = Math.sqrt((dx*dx+dy*dy)/2.0); double s = Math.sqrt((tx*tx+ty*ty)/2.0); double o = Math.sqrt((px*px+py*py)/2.0); int w, h; public void init (){ w = getSize().width; h = getSize().height; L = 70.0; init_panel(); } void init_panel(){ String ar = getParameter ("angle"); if (ar == null){ t2=0*(Math.PI/180.0); } else t2 = Double.valueOf(ar).doubleValue(); p = new Panel(); p.add(new Label("分岐回数")); p.add(nTextField = new TextField("15")); p.add(boton1 = new Button("更新1")); p.add(new Label("生長する枝")); p.add(sTextField = new TextField("0.7")); p.add(boton2 = new Button("更新2")); p.add(new Label("枝の角度")); p.add(aTextField = new TextField("15")); p.add(boton3 = new Button("更新3")); p.add(new Label("分岐の大きさ(2～7)")); p.add(kTextField = new TextField("5.0")); p.add(boton4 = new Button("更新4")); p.setBackground(Color.pink); setLayout(new BorderLayout()); add("North",p); boton1.addActionListener ( new java.awt.event.ActionListener () { public void actionPerformed (ActionEvent e) { n= Integer.parseInt(nTextField.getText())*2; // numero repaint(); } }); boton2.addActionListener ( new java.awt.event.ActionListener () { public void actionPerformed (ActionEvent e) { dd = Double.valueOf(sTextField.getText()).doubleValue(); // escala repaint(); } }); boton3.addActionListener ( new java.awt.event.ActionListener () { public void actionPerformed (ActionEvent e) { t2 = (Double.valueOf(aTextField.getText()).doubleValue())*(Math.PI/360.0); // angulo repaint(); } }); boton4.addActionListener ( new java.awt.event.ActionListener () { public void actionPerformed (ActionEvent e) { t3 = Double.valueOf(kTextField.getText()).doubleValue(); // angulo if(t3 < 2.0){ t3 = 2.0; }else if(t3> 7.0){ t3 = 7.0; } repaint(); } }); } public void paint (Graphics g){ int x0, y0; x0= w/2; y0= 0; g.setColor(Color.white); g.fillRect(0,0,w,h); write_node(g, n, L, t0, 0, 0, 1); } public void write_node (Graphics g, int n, double l, double arg, int x, int y, int flag){ int xx, yy,i; xx = (int)(l * Math.cos(arg) * dd); yy = (int)(l * Math.sin(arg) * dd); if(flag == 1) g.setColor(new Color(180,180,0)); if(flag == 2) g.setColor(new Color(0,200,97)); if(flag == 3) g.setColor(new Color(200,200,0)); if(flag == 4) g.setColor(new Color(0,245,120)); g.drawLine (300+x, 500-y, 300+(x+xx) , 500-(y+yy)); if (n>0){ if(flag == 1){ write_node(g, n-2, l*s, (arg + t2/2.0) + 0.0*t2/1.0, x+xx, y+yy, 1); write_node(g, n-2, l*0.3, (arg + t2/2.0) + t3*t2/1.0, x+xx, y+yy, 3); write_node(g, n-2, l*0.3, (arg + t2/2.0) - t3*t2/1.0, x+xx, y+yy, 3); } else if(flag == 2){ write_node(g, n-2, (l*z), (arg + t2/4.0) + 0.0*t2/1.0, x+xx, y+yy, 2); } else if(flag == 3){ write_node(g, n-2, (l*s), (arg + t2/4.0) + 0.0*t2/1.0, x+xx, y+yy, 3); write_node(g, n-2, (l*s), (arg + t2/2.0) + t3*t2/1.0, x+xx, y+yy, 4); write_node(g, n-2, (l*s), (arg + t2/2.0) - t3*t2/1.0, x+xx, y+yy, 4); } else{ write_node(g, n-2, (l*z), (arg + t2/4.0) + 0.0*t2/1.0, x+xx, y+yy, 4); write_node(g, n-2, (l*0.3), (arg + t2/2.0) + t3*t2/1.0, x+xx, y+yy, 2); write_node(g, n-2, (l*0.3), (arg + t2/2.0) - t3*t2/1.0, x+xx, y+yy, 2); } } } }