Original Post
I've implemented double buffering and I want it so that when I hit enter it triggers the function dropPiece in order to draw the piece in it's proper place and then call repaint to update it, but it doesn't seem to be calling dropPiece at all when hit enter. Code: Any help is appreciated!!!!! [Edited by - BlackReign on January 12, 2005 6:41:58 AM]
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
public class Culminating extends Applet implements KeyListener {
int playerTurn = 1;
int selectorX=65;
final int selectorY=0;
int selectorPos = 1;
int gameEnd =0;
int positionofLastChip = 0;
int i = 0;
int dropLevel = 0;
int x = 0;
int count = 0;
Graphics g;
Image image;
Dimension dim;
Graphics bufferGraphics;
Image offscreen;
Color playerColor = Color.red;
int [] col1 = {0,0,0,0,0,0,0};
int [] col2 = {0,0,0,0,0,0,0};
int [] col3 = {0,0,0,0,0,0,0};
int [] col4 = {0,0,0,0,0,0,0};
int [] col5 = {0,0,0,0,0,0,0};
int [] col6 = {0,0,0,0,0,0,0};
int [] col7 = {0,0,0,0,0,0,0};
public void keyPressed(KeyEvent ke) {
switch (ke.getKeyCode()) {
case KeyEvent.VK_LEFT: // move x coordinate left
bufferGraphics.setColor(Color.white);
bufferGraphics.fillOval(selectorX,selectorY,50,50);
if (selectorPos != 1) {
selectorX -= 60;
selectorPos -= 1;
}
bufferGraphics.setColor(playerColor);
bufferGraphics.fillOval(selectorX,selectorY,50,50);
break;
case KeyEvent.VK_RIGHT: // move x coordinate right
bufferGraphics.setColor(Color.white);
bufferGraphics.fillOval(selectorX,selectorY,50,50);
if (selectorPos != 7) {
selectorX += 60;
selectorPos += 1;
}
bufferGraphics.setColor(playerColor);
bufferGraphics.fillOval(selectorX,selectorY,50,50);
break;
case KeyEvent.VK_ENTER: // place piece when pressed
dropPiece(g);
break;
}
repaint();
}
public void keyTyped(KeyEvent event) {}
public void keyReleased(KeyEvent event){}
public void dropPiece(Graphics g) {
if ( selectorPos == 1) {
count = 0;
i = 0;
positionofLastChip = 0;
while (i!=1) {
i = col1[count++];
positionofLastChip = count ;
dropLevel=positionofLastChip + 1;
if (count > 6) {
dropLevel= 1;
}
}
x=445-(dropLevel*60);
bufferGraphics.fillOval(65,x,50,50);
}
else if ( selectorPos == 2) {
count = 0;
i = 0;
positionofLastChip = 0;
while (i!=1) {
i = col1[count++];
positionofLastChip = count ;
dropLevel=positionofLastChip + 1;
if (count > 6) {
dropLevel= 1;
}
}
x=445-(dropLevel*60);
bufferGraphics.fillOval(125,x,50,50);
}
else if ( selectorPos == 3) {
count = 0;
i = 0;
positionofLastChip = 0;
while (i!=1) {
i = col1[count++];
positionofLastChip = count ;
dropLevel=positionofLastChip + 1;
if (count > 6) {
dropLevel= 1;
}
}
x=445-(dropLevel*60);
bufferGraphics.fillOval(185,x,50,50);
}
else if ( selectorPos == 4) {
count = 0;
i = 0;
positionofLastChip = 0;
while (i!=1) {
i = col1[count++];
positionofLastChip = count ;
dropLevel=positionofLastChip + 1;
if (count > 6) {
dropLevel= 1;
}
}
x=445-(dropLevel*60);
bufferGraphics.fillOval(245,x,50,50);
}
else if ( selectorPos == 5) {
count = 0;
i = 0;
positionofLastChip = 0;
while (i!=1) {
i = col1[count++];
positionofLastChip = count ;
dropLevel=positionofLastChip + 1;
if (count > 6) {
dropLevel= 1;
}
}
x=445-(dropLevel*60);
bufferGraphics.fillOval(305,x,50,50);
}
else if ( selectorPos == 6) {
count = 0;
i = 0;
positionofLastChip = 0;
while (i!=1) {
i = col1[count++];
positionofLastChip = count ;
dropLevel=positionofLastChip + 1;
if (count > 6) {
dropLevel= 1;
}
}
x=445-(dropLevel*60);
bufferGraphics.fillOval(365,x,50,50);
}
else if ( selectorPos == 7) {
count = 0;
i = 0;
positionofLastChip = 0;
while (i!=1) {
i = col1[count++];
positionofLastChip = count ;
dropLevel=positionofLastChip + 1;
if (count > 6) {
dropLevel= 1;
}
}
x=445-(dropLevel*60);
bufferGraphics.fillOval(425,x,50,50);
}
if (playerTurn == 1) { //select colour to paint circlebased on which players turn it is
playerColor = Color.red;
playerTurn=2;
}
else {
bufferGraphics.setColor(Color.black);
playerTurn = 1;
}
repaint();
}
public void init() {
addKeyListener(this);
requestFocus();
setBackground(Color.white);
dim = getSize();
offscreen = createImage(dim.width,dim.height);
bufferGraphics = offscreen.getGraphics();
}
public void start() {
}
public void paint (Graphics g) {
//left/right stand
bufferGraphics.setColor(Color.blue);
bufferGraphics.fillRect(40,60,10,420);
bufferGraphics.fillRect(490,60,10,420);
bufferGraphics.fillRect(50,450,440,2);
//middle
bufferGraphics.setColor(Color.yellow);
bufferGraphics.fillRect(50,70,440,380);
bufferGraphics.setColor(Color.white);
//circles
for (int x = 0; x < 7; x++) //seven columns
for (int y = 0; y < 6; y++) //six rows
bufferGraphics.fillOval(65 + x * 60, 85 + y * 60, 50, 50);
bufferGraphics.setColor(Color.red);
bufferGraphics.fillOval(selectorX,selectorY,50,50);
// gridlines
// setColor(Color.black);
// bufferGraphics.drawLine(50,100,480,100);
// bufferGraphics.drawLine(50,160,480,160);
// bufferGraphics.drawLine(50,220,480,220);
// bufferGraphics.drawLine(50,280,480,280);
// bufferGraphics.drawLine(50,340,480,340);
//
// bufferGraphics.drawLine(120,40,120,400);
// bufferGraphics.drawLine(180,40,180,400);
// bufferGraphics.drawLine(240,40,240,400);
// bufferGraphics.drawLine(300,40,300,400);
// bufferGraphics.drawLine(360,40,360,400);
// bufferGraphics.drawLine(420,40,420,400);
g.drawImage(offscreen,0,0,540,500,null);
}
public void update(Graphics g) {
g.drawImage(offscreen,0,0,540,500,null);
}
public void stop() {
}
public void destroy () {
}
}