fixed stuff

lol

Applicatie/AddPeoplePanel.java

@@ -1,13 +1,17 @@
 package Applicatie;
 
 import java.awt.BorderLayout;
+import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.awt.event.KeyEvent;
+import java.awt.event.KeyListener;
 
 import javax.swing.JButton;
 import javax.swing.JFrame;
 import javax.swing.JLabel;
+import javax.swing.JOptionPane;
 import javax.swing.JPanel;
 import javax.swing.JTextField;
 
@@ -31,6 +35,29 @@ public class AddPeoplePanel extends JFrame {
 		panel = new JPanel();
 		JTextField amountOfPeopleField = new JTextField("0");
 		amountOfPeopleField.setPreferredSize(new Dimension(100,20));
+		amountOfPeopleField.addKeyListener(new KeyListener() {
+			
+			@Override
+			public void keyTyped(KeyEvent e) {
+			}
+			
+			@Override
+			public void keyReleased(KeyEvent e) {
+				try {
+					amountOfPeopleField.setBackground(Color.WHITE);
+					int amountOfPeople = Integer.parseInt(amountOfPeopleField.getText());
+					amountOfPeopleField.setText(amountOfPeople + "");
+				}
+				catch(NumberFormatException nf) {
+					amountOfPeopleField.setBackground(Color.RED);
+				}
+			}
+			
+			@Override
+			public void keyPressed(KeyEvent e) {
+			}
+		});
+		
 		label = new JLabel("people ");
 		panel.add(amountOfPeopleField);
 		panel.add(label);
@@ -51,8 +78,12 @@ public class AddPeoplePanel extends JFrame {
 			
 			@Override
 			public void actionPerformed(ActionEvent e) {
-				topPanel.addVisitors(Integer.parseInt(amountOfPeopleField.getText()));
-				AddPeoplePanel.this.dispose();
+				if(amountOfPeopleField.getBackground() != Color.RED) {
+					topPanel.addVisitors(Integer.parseInt(amountOfPeopleField.getText()));
+					AddPeoplePanel.this.dispose();
+				}
+				else 
+					JOptionPane.showMessageDialog(topPanel, "Only numbers are accepted");
 			}
 		});
 		panel.add(button);

Applicatie/Panel.java

@@ -231,14 +231,11 @@ public class Panel extends JPanel implements ActionListener
 
 	public void addVisitors(ArrayList<DrawObject> entrances)
 	{
-		if(!entrances.isEmpty()) {
+		
 			DrawObject entrance = entrances.get((int) Math.floor(Math.random()*entrances.size()));
 			Point point = new Point((int)entrance.getPosition().getX(),(int)entrance.getPosition().getY());
 			visitors.add(new Visitor("visitor",point, agenda, objects, waypoints, date));
-		}
-		else {
-			JOptionPane.showMessageDialog(this, "You don't have an entrance");
-		}
+		
 	}
 
 	public void addVisitors(int count)
@@ -249,10 +246,14 @@ public class Panel extends JPanel implements ActionListener
 				entrances.add(object);
 			}
 		}
-		for (int i = 0; i < count; i++)
-		{
-			addVisitors(entrances);
+		if(!entrances.isEmpty()) {
+			for (int i = 0; i < count; i++)
+			{
+				addVisitors(entrances);
+			}
 		}
+		else 
+			JOptionPane.showMessageDialog(this, "You don't have an entrance");
 		cp.setPeople(visitors.size());
 	}