Check if there's an empty place arround a button - java

I am making an sliding puzzle game as my college project. The game concept is: you have a 3x3 table but with 8 buttons. When you click a button it have to move itself to an empty place. Is there any way to check if there's an empty place arround my button?

you can put a boolean field in your button class and check it when user requests to move
if you want I can write the exact code.
Good Luck!

Related

There are some method to use toggle buttons without need to create a lot of conditions

I'm developing a program in java for admin orders in a restaurant.
I have a screen like this.
Frame for admin orders.
I want to select any button from left and any button from right and clic in button "Agregar" later.
I'm thinking to do a method with a lot of conditions if and else if, for example.
if(buttonCombo1.isSelected() and buttonNumber1.isSelected()){
//Doing something
}else if(buttonCombo1.isSelected() and buttonNumber2.isSelected()){
//Doing something
}
I would have to do a lot of conditions, and I have no idea do otherwise.
If you can help me to find another way for do It, I would be grateful.
Note: I apologize for my bad english. I'm learning yet.
Thanks so much.
I don't remember if you can group simple buttons. But you can define a click function in each button to change the value of button in a Bollean Array (with lenght equals amount of button.)
In this case, you will have acess a boolean value directly for a index.

using DefaultListMethod to make custom buttons via showOptionDialog

I am just learning AWT / Swift / JavaFx recently and I feel like I have learned a lot but have barely scratched the surface. There might be a much easier way to do this BUT, I am trying to make a GUI button in eclipse that calculates the distance between two objects that the user creates. Lets call them Robots for now. So, I have one button that allows the user to create the Robots and it stores them in a DefaultListModel (listModel) and displays them in a Jlist (list) below the buttons. When the user then clicks on a robot, another button becomes actice and allows them to calculate the distance between them (one of the parameters of the robots is their location on a grid). I have all that worked out but my problem is that I am trying to make it to where they have to select two different Robots. At first I thought I could let them select two Robots and then make the computeDistance button becomes active, but I am not really sure how to do that because the only way I can select more than one object in the JList is to cntrl click and I don't want the user to have to know that trick.
My next idea was to allow the user to have one Robot selected and then give them a popup window displaying the other Robots and have them select one. Via showOptionsDialog, I have discovered how to make a custom JOptionPane, so I thought, why not make them buttons (probably will look awful, but I don't know how to make anything other than JOptionPane.showXxx at this point (like I said, only skin deep so far). Have tried consulting the javadocs, but right now that is a LOTTT to take in and have read a decent amount, I thought.
Ok, sorry if this is long, but is there a way, using my DefaultListMethod to make custom buttons? I tried a bunch of ways by creating Object[] options = {list.elements()}; etc but that doesn't work. Any help would be much appreciated!

Java dragging image and dropping on the point

I want to create interactive drag and drop. What I mean is that i have 10 slots and 5 buttons, I want to make that user can drag and drop a button on the slot he wants to. I made it with ComboBox and it works fine but I want to make it more interactive. Is it possible in an easy way or I need a hard code? If so any good help on coding would be appreciated.
//Edit. I made it with ComboBox using setLocation(); with saved every slot position
//Edit again with photo:
You can see several example of Drag and drop in Java here and decide which kind of drag and drop you would like to do:
http://docs.oracle.com/javase/tutorial/uiswing/examples/dnd/

jcreator - making a matching game

I'm doing a Matching/Memory Game in JCreator using buttons and if-else statements
When you click the buttons, the image clicked will pop up then if you click the next one, but it's not the same image, then both will close. If you get the correct matching image, they both disable. My problem is the logic of matching it.
What will I do or use to make my program know that two buttons match?
You need to add an ActionListener. Use that link to find out how to detect whether buttons are being pushed and what to do when pushed. To make an image appear, use an icon with the button. When you click, a number changes to a value. If you click another and a number is the same value, then they become disabled. If they are diffrent, then the icon is changed and the number reverts to zero. To disable, use button.setEnable(false);
Use this link for help with button icons/general button help.
Another thing you can do, although it takes more time, is giving each button a numeric value and use RandNum to decide them. If you set it as a constant variable then you can use that to match them

Press buttons without release finger from screen

I want to press buttons like it shown on this picture http://i.stack.imgur.com/C1NW3.jpg. That is I want to press buttons by holding finger on the screen and moving it along buttons. For example on this pic buttons 1, 2,5,8,9 will be pressed after this procedure.
Sorry for my bad english, but i cant to describe this in a different way.
How I can do this?
Well, sorry for not providing the very simple answer like "use the function xyz()" for this, but I think there are some general ways to do it:
You can create pictures that look like buttons (or bubbles or anything else appropriate), place them in an order that you need and then, getting each coordinate of the pointer (of the finger) on the screen, just check if this pointer gets into some area (maybe rectangle) inside each button. This logical area should be smaller than shown picture to let user move finger not so careful.
Another "solution" would be to put some "jitter" and send "left click" message on each position update along the way. In this case buttons should have some protection from multiple clicks. I remember on stackoverflow.com some advice how to do this: just disable the button on the click event.
Sorry if Android has some solution "out of the box", which I have no idea about, but the described problem seems to be general, not platform-specific.

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