bufferingpublic class buffering extends Applet
| Fields Summary |
|---|
| Image | im | | Graphics | buf | | int | pass |
| Methods Summary |
|---|
| public void | init()
// Create buffer
im = createImage (size().width, size().height);
// Get its graphics context
buf = im.getGraphics();
// Draw Board Once
buf.setColor (Color.red);
buf.drawLine ( 0, 50, 150, 50);
buf.drawLine ( 0, 100, 150, 100);
buf.drawLine ( 50, 0, 50, 150);
buf.drawLine (100, 0, 100, 150);
buf.setColor (Color.black);
| | public void | paint(java.awt.Graphics g)
// Draw image - changes are written onto buf
g.drawImage (im, 0, 0, this);
// Make a move
switch (pass) {
case 0:
buf.drawLine (50, 50, 100, 100);
buf.drawLine (50, 100, 100, 50);
break;
case 1:
buf.drawOval (0, 0, 50, 50);
break;
case 2:
buf.drawLine (100, 0, 150, 50);
buf.drawLine (150, 0, 100, 50);
break;
case 3:
buf.drawOval (0, 100, 50, 50);
break;
case 4:
buf.drawLine (0, 50, 50, 100);
buf.drawLine (0, 100, 50, 50);
break;
case 5:
buf.drawOval (100, 50, 50, 50);
break;
case 6:
buf.drawLine (50, 0, 100, 50);
buf.drawLine (50, 50, 100, 0);
break;
case 7:
buf.drawOval (50, 100, 50, 50);
break;
case 8:
buf.drawLine (100, 100, 150, 150);
buf.drawLine (150, 100, 100, 150);
break;
}
pass++;
if (pass <= 9)
repaint (500);
|
|
