Hi,
I'm writing code for a graphical map of a shopping center. Whilst writing the code I realised it would be simpler to be able to draw objects using "names" instead of values. E.g. g.drawRect(Asda); instead of g.drawRect(100,100,40,40);. Is this possible? I have tried writing various classes but I can't get the program to work. Also when I click on the map I would like the program to state the nearest object to the mouse click. So far I have managed to make the program tell me the name of the object I have clicked on. Again help with this would be much appreciated. The code is below and I have uploaded the java files so you can test to see what they do. I use a separate java file to run this program.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
public class graphicalMap
extends JFrame implements MouseListener {
int xsize=700, ysize=700; //JFrame size values
int x,y; //Used to draw small circle
String message; //Used to write message when user clicks
public graphicalMap() {
setSize(xsize, ysize); //Set JFrame size
setVisible(true); //Set visiility to true
show(); //Show
addMouseListener(this); //Add mouse listener events
}
public void mouseClicked(MouseEvent e)
{
x=e.getX(); //Get x co-ordinate from mouse click
y=e.getY(); //Get y co-ordinate from mouse click
if( ((x-50 > 0) && (x-50 < 40)) && ((y-50 > 0) && (y-50 < 40)) ) { //If click is in Asda
message = "Asda: The best place to shop";
} else {
if( ((x-50 > 0) && (x-50 < 40)) && ((y-100 > 0) && (y-100 < 40)) ) { //If click is in Tesco
message = "Tesco: The second best place to shop";
} else {
if( ((x-500 > 0) && (x-500 < 40)) && ((y-50 > 0) && (y-50 < 40)) ) { //If click is in Morrisons
message = "Morrisons: The third best place to shop";
} else {
if( ((x-500 > 0) && (x-500 < 40)) && ((y-100 > 0) && (y-100 < 40)) ) { //If click is in Sainsburys
message = "Sainsburys: The fourth best place to shop";
} else {
message = "";
}
}
}
}
repaint();
}
public void mouseExited(MouseEvent e) {}
public void mouseEntered(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {}
public void mousePressed(MouseEvent e) {}
public void paint(Graphics g) {
super.paint(g);
//SHOPS
g.setColor(Color.black);
g.drawRect(50,50,40,40); //Asda
g.drawRect(65,70,10,20); //Asda door
g.drawRect(50,100,40,40); //Tesco
g.drawRect(65,120,10,20); //Tesco door
g.drawRect(500,50,40,40); //Morrisons
g.drawRect(515,70,10,20); //Morrisons door
g.drawRect(500,100,40,40); //Sainsburys
g.drawRect(515,120,10,20); //Sainsburys door
//SMALL CIRCLE (MOUSE CLICK)
g.drawOval(x,y,3,3);
//ROADS
g.setColor(Color.blue);
g.drawLine(90,63,500,63); //First road (Top)
g.drawLine(90,77,150,77); //First road (Bottom before first intersection)
g.drawLine(164,77,440,77); //First road (Bottom after first interesction)
g.drawLine(454,77,500,77); //First road (Bottom after second intersection)
g.drawLine(90,113,150,113); //Second road (Top before first intersection)
g.drawLine(164,113,440,113); //Second road (Top after first intersection)
g.drawLine(454,113,500,113); //Second road (Top after second intersection)
g.drawLine(90,127,150,127); //Second road (Bottom before first intersection)
g.drawLine(164,127,440,127); //Second road (Bottom after first intersection)
g.drawLine(454,127,500,127); //Second road (Bottom after second intersection)
g.drawLine(150,77,150,113); //Third road (Left before intersection)
g.drawLine(150,127,150,500); //Third road (Left after intersection)
g.drawLine(164,77,164,113); //Third road (Right before intersection)
g.drawLine(164,127,164,486); //Third road (Right after intersection)
g.drawLine(440,77,440,113); //Fourth road (Left before intersection)
g.drawLine(440,127,440,486); //Fourth road (Left after intersection)
g.drawLine(454,77,454,113); //Fourth road (Right before intersection)
g.drawLine(454,127,454,500); //Fourth road (Right after intersection)
g.drawLine(164,486,440,486); //Fifth road (Top)
g.drawLine(150,500,454,500); //Fifth road (Bottom)
//MESSAGE (MOUSE CLICK ON OBJECT)
g.setColor(Color.red);
g.drawString(message,40,40); //String drawn by mouse click on object
}
}
