Rectangles not showing up on a panel.

[ruben381]

It's probably something really herp derp flurpy, like it always is with me, but I just can't see it.

Any help here is appreciated.

Main.java

package source;

import javax.swing.*;

public class Main
{
	
	public static Main0 f;
	public static int width = 800;
	public static int height = 600;

	
	public static void main(String[] args) 
	{
		f = new Main0();
		f.setVisible(true);
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		f.setResizable(false);
		f.setSize(width, height);
		f.setTitle("Platformer");
		f.setLocationRelativeTo(null);
	}
	


}

Main0.java

package source;

import java.awt.*;

import javax.swing.*;

public class Main0 extends JFrame{
	
	public Main1 panel;
	
	public Main0()
	{
		panel = new Main1();
		setLayout(new GridLayout(1, 1, 0, 0));
		add(panel);
	}

}

Main1.java

package source;

import java.awt.*;
import java.awt.event.KeyAdapter;

import javax.swing.*;

import org.lwjgl.input.Keyboard;

public class Main1 extends JPanel implements Runnable{
	
	public Rectangle character;
	public Rectangle ground;
	
	
	public int characterWidth = 20;
	public int characterHeight = 20;
	public boolean falling = false;
	public int fps = 1000;
	public int fallingSpeed = 10;
	public int fallingFrame = 0;
	public int floorHeight = 80;
	
	public int moveStrength = 1;
	public int moveFrame = 0;
	public int fallinginairStrength = 10;
	public int resetMovement = 0;
	
	
	public boolean objectsDefined = false;

	
	public Thread game;
	public boolean running = true;
	
	public boolean right = false;
	public boolean left = false;
	
	public Main1() 
	{
		setBackground(Color.black);
		
		defineObjects();
		
		game = new Thread(this);
		game.start();
		
		if(Keyboard.isKeyDown(Keyboard.KEY_D))
		{
			right = true;
		}
		if(Keyboard.isKeyDown(Keyboard.KEY_A))
		{
			right = true;
		}
				
		}
	
	public void defineObjects()
	{
		
		character = new Rectangle((Main.width / 2 ) - (characterWidth / 2), (Main.height/2) - (characterHeight/2), characterWidth, characterHeight);
		ground = new Rectangle(-10, Main.height-floorHeight, Main.width+10, floorHeight);
		
		
		objectsDefined= true;
		
		repaint();
	}
	
	public void paintComponents(Graphics g)
	{
		super.paintComponents(g);
		
		if(objectsDefined)
		{
			g.setColor(Color.WHITE);
			g.fillRect(character.x, character.y, character.width, character.height);
			g.fillRect(ground.x, ground.y, ground.width, ground.height);
		}
	}
	
	public void run() 
	{
		while(running)
		{
			Point pt1 = new Point(character.x, character.y + character.height);
			Point pt2 = new Point(character.x, character.y + character.width);
			character.y += fallingSpeed;
			
			if(fallingFrame >= fallingSpeed)
			{
				if(ground.contains(pt1) || ground.contains(pt2)) 
				
				{
					falling = false;
				} 
				else
				{
				character.y += 1;
				falling = true;
				}
				
				if(falling)
				{
					character.y += 1;
				}
				
				
				fallingFrame = 0;
			}
			else
			{
				fallingFrame += 1;
			}
			
			if(falling)
			{
				moveStrength = fallinginairStrength;
			}
			else
			{
				moveStrength = resetMovement;
			}
			
			// L/R MOVING
			if(moveFrame >= moveStrength)
					{
						if(right)
						{
							character.x -= 1;
							
							moveFrame = 0;
						}
						if(left)
						{
							character.x += 1;
							
							moveFrame = 0;
						}
					}
			else
			{
				moveFrame  += 1;
			}
			setFrames();
			
			repaint();
		}
		
	}
	
	public void setFrames()
	{
		try
		{
			game.sleep(fps/1000);
		}catch(Exception e)
		{
			e.printStackTrace();
		}
	}

}

Thanks,

-Adam

[Norm]

Is the code that draws the shapes being executed? Add a println that prints out the location and size of the shape being drawn to see.

[DarrylBurke]

1. You shouldn't be overriding paintComponents(...). Since the panel doesn't have any components, that method won't be executed.
2. Thread.sleep(...) is a static method and shouldn't be invoked on an instance of Thread, as that is misleading.
3. Learn to use a javax.swing.Timer instead. That's what the class is for.

db