Programming Forums > Application Development > Java

andro · May 15th, 2006, 8:16 PM

That tetris game is done in flash, so it doesn't matter what drawing methods it uses.

And I think you could accomplish that using Java's drawing methods, but if you want to use .jpeg's it's up to you.

Jimbo · May 15th, 2006, 8:21 PM

What about Graphics.draw3DRect and Graphics.fill3DRect?

Eric the Red · May 15th, 2006, 10:38 PM

Quote:

Originally Posted by Jimbo

What about Graphics.draw3DRect and Graphics.fill3DRect?

i need faded rects like the one in the example i gave u.. can fillrect do that?

titaniumdecoy · May 15th, 2006, 10:53 PM

Read this article.

mona singh · May 18th, 2008, 2:04 AM

Yi I really need a help here please I want to know how to draw lines which draw from all the corners.

Freaky Chris · May 18th, 2008, 4:15 AM

[delete me]

mona singh · Jun 9th, 2008, 12:55 AM

hi ever body i have a question i just want to know to make menu that provide for user an option to select random shpaes like rectangle, oval and lines and that should have two class???

MGSneak · Jun 22nd, 2008, 1:33 AM

k Eric, im going to trt to tackle as many problems as possible.
first, the "flicker problem."
what you need to do is create a buffered image. aquire a Graphics2D object that paints onto the buffered image, then set the paint method.

(Toggle Plain Text)

import java.awt.image.BufferedImage;//import statement
BufferedImage bi = new BufferedImage(xDimension,Ydimension,BufferedImage.TYPE_INT_RGB);//make a back buffer. the 3'ed parameter is just a constent, just copy that word for word
Graphics2D g2d = bi.createGraphics();//where your painting on to

public void paint(Graphics g)
{
   g2d.drawImage(image,x,y,this);//draw your image on to the buffered image
   g.drawImage(bi,0,0,this);//draw the buffered image onto the screen
}

as far as the image over createing all the squares. if you want to use you images the only problem is... they're rectangles, not wacky shapes. you would have to make the polygon points to represent the collisions. the thing that would be easiest is to construct a 2d array that holds int's to represent one type of shape, then over time would transpose itself down.

just tying to throw some ideas your way to make coding easier. if u need anymore help im happy to share ideas and code.

seigiac · Jul 3rd, 2008, 11:02 AM

The best approach I can come up with to is to generate the different shapes by building them from images in runtime. You should a have an image from a square, and then you could paint 4 times this square in a particular way, for example the I-shape would be 4 drawImage() with an ofsset on the X-axis.

If you use a JPanel to paint I think that you wouldn't have any flickering problems, and is also easy to use. I've find flickering problems when using Canvas.

to paint an image, a good way to do it is:

(Toggle Plain Text)

Image image;

void loadImage(String filePath){
   try{
      image = javax.imageio.ImageIO.read(new File(filePath));
			
   }catch(Exception e){}
}

void paint (Graphics g){
   g.drawImage(image, x, y, null);
}

This works for me.

I did a tetris game once, and it was very easy to have a int[][] where you logically mark the squares where there is a tetromino, and then in the paint you just paint the images according to this grid.

I do think using images is the best approach because it will allow you to change the look of your game anytime you want to without changing the code.

May 18th, 2008, 2:04 AM	#15
mona singh Newbie Join Date: May 2008 Posts: 2 Rep Power: 0	Re: 2-d graphics Yi I really need a help here please I want to know how to draw lines which draw from all the corners.

May 18th, 2008, 4:15 AM	#16
Freaky Chris Hobbyist Programmer Join Date: Dec 2007 Location: England Posts: 169 Rep Power: 1	Re: 2-d graphics [delete me] __________________ Who said i couldn't program `sarcasm = raw_input('Type in a sarcastic remark: ') print sarcasm`

Jun 9th, 2008, 12:55 AM	#17
mona singh Newbie Join Date: May 2008 Posts: 2 Rep Power: 0	Re: 2-d graphics hi ever body i have a question i just want to know to make menu that provide for user an option to select random shpaes like rectangle, oval and lines and that should have two class???

Jun 22nd, 2008, 1:33 AM	#18
MGSneak Java Game Programmer Join Date: Jun 2008 Location: U.S. Posts: 10 Rep Power: 0	Re: 2-d graphics k Eric, im going to trt to tackle as many problems as possible. first, the "flicker problem." what you need to do is create a buffered image. aquire a Graphics2D object that paints onto the buffered image, then set the paint method. (Toggle Plain Text) import java.awt.image.BufferedImage;//import statement BufferedImage bi = new BufferedImage(xDimension,Ydimension,BufferedImage.TYPE_INT_RGB);//make a back buffer. the 3'ed parameter is just a constent, just copy that word for word Graphics2D g2d = bi.createGraphics();//where your painting on to public void paint(Graphics g) { g2d.drawImage(image,x,y,this);//draw your image on to the buffered image g.drawImage(bi,0,0,this);//draw the buffered image onto the screen } import java.awt.image.BufferedImage;//import statement BufferedImage bi = new BufferedImage(xDimension,Ydimension,BufferedImage.TYPE_INT_RGB);//make a back buffer. the 3'ed parameter is just a constent, just copy that word for word Graphics2D g2d = bi.createGraphics();//where your painting on to public void paint(Graphics g) { g2d.drawImage(image,x,y,this);//draw your image on to the buffered image g.drawImage(bi,0,0,this);//draw the buffered image onto the screen } as far as the image over createing all the squares. if you want to use you images the only problem is... they're rectangles, not wacky shapes. you would have to make the polygon points to represent the collisions. the thing that would be easiest is to construct a 2d array that holds int's to represent one type of shape, then over time would transpose itself down. just tying to throw some ideas your way to make coding easier. if u need anymore help im happy to share ideas and code.

Jul 3rd, 2008, 11:02 AM	#19
seigiac Newbie Join Date: Jul 2008 Posts: 1 Rep Power: 0	Re: 2-d graphics The best approach I can come up with to is to generate the different shapes by building them from images in runtime. You should a have an image from a square, and then you could paint 4 times this square in a particular way, for example the I-shape would be 4 drawImage() with an ofsset on the X-axis. If you use a JPanel to paint I think that you wouldn't have any flickering problems, and is also easy to use. I've find flickering problems when using Canvas. to paint an image, a good way to do it is: (Toggle Plain Text) Image image; void loadImage(String filePath){ try{ image = javax.imageio.ImageIO.read(new File(filePath)); }catch(Exception e){} } void paint (Graphics g){ g.drawImage(image, x, y, null); } Image image; void loadImage(String filePath){ try{ image = javax.imageio.ImageIO.read(new File(filePath)); }catch(Exception e){} } void paint (Graphics g){ g.drawImage(image, x, y, null); } This works for me. I did a tetris game once, and it was very easy to have a int[][] where you logically mark the squares where there is a tetromino, and then in the paint you just paint the images according to this grid. I do think using images is the best approach because it will allow you to change the look of your game anytime you want to without changing the code. Last edited by seigiac; Jul 3rd, 2008 at 11:06 AM. Reason: correcting code

May 15th, 2006, 8:16 PM	#11
andro Professional Programmer Join Date: Oct 2005 Location: California Posts: 294 Rep Power: 3	That tetris game is done in flash, so it doesn't matter what drawing methods it uses. And I think you could accomplish that using Java's drawing methods, but if you want to use .jpeg's it's up to you.

May 15th, 2006, 8:21 PM	#12
Jimbo Battle Programmer Join Date: Feb 2006 Location: Bellevue, WA, USA Posts: 754 Rep Power: 3	What about Graphics.draw3DRect and Graphics.fill3DRect?

May 15th, 2006, 10:53 PM	#14
titaniumdecoy Expert Programmer Join Date: Nov 2005 Posts: 843 Rep Power: 3	Read this article.

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Programming Forums > Application Development > Java

2-d graphics