Combine .setTranslateY with 'if'

[asdfg]

Im developing basic game. I want to make some events...

character.setTranslateY (50);

if ( character.TranslateY.equals.50; ) {
    	   right.setVisible (false);
        }

The problem is that I dont know how to write condition properly. While setTranslateY sets coordinates, this format is not recognized for 'if condition'

[Norm]

if ( character.TranslateY.equals.50; ) {

That statement shows a basic misunderstanding of how to write java code.
There should not be a ; inside of the ()s
You need to understand what symbols are for methods and which ones are for variables.
For variables you need to know which ones are for objects and which ones are for primitives.

You can not call a method using a primitive.
A numeric literal like 50 can not be referenced: ... equals.50
A method needs () with its args inside of the ()s

[asdfg]

To write confidition with simple integers is no problem.

int a = 10;

if (a<12){
a++;
}

But there comes confusing with .setTranslateY (50);
There should be something like coordinate = 50;
But I dont know. And Im not familar how to insert parameter value for condition.

[Norm]

Have you read the API doc for the class with the setTranslateY method?

There should be something like coordinate = 50;

Why? Classes try to protect their variables by making them private and requiring a set method to change their contents. Directly assigning a value to a variable is not allowed. Most classes with set methods have get methods also.

What are you trying to do? Can you explain in English?

[Tolls]

Can I suggest not doing GUI stuff at the moment?
Write a simple text game using the command line, so you can get used to how Java methods work.
GUI frameworks require you to understand how Java works, and so are not something a beginner should be using.

[jim829]

Have you read the API doc for the class with the setTranslateY method?

Are you kidding?

Regards,
Jim

[asdfg]

Have you read the API doc for the class with the setTranslateY method?


Why? Classes try to protect their variables by making them private and requiring a set method to change their contents. Directly assigning a value to a variable is not allowed. Most classes with set methods have get methods also.

What are you trying to do? Can you explain in English?

https://www.youtube.com/watch?v=GcAHXD68THw

[Norm]

Sorry, I don't like using links. Post any response you have here.

[asdfg]

[Norm]

Please respond to the questions in post#4 with text in this thread. Not images or videos.

[asdfg]

One button have to become invisible, once it reach certain coordinates.

Once image reach those coordinates.

character.setTranslateY (50); 			
  character.setTranslateX (0);

I want to apply action.
But I dont know how to use "if ( )" condition this time.

Because 'character.setTranslateY (50)' should be used as condition, but compilator dont likes it.

[Norm]

compilator dont likes it.

Please copy the full text of the error message and paste it here. It has important info about the error.

Also show the definitions for the variables used in the statement so we know what data type they are.

'character.setTranslateY (50)' should be used as condition

What does the API doc say about the setTranslateY() method? What type of value does it return that could be used in an if statement?

[asdfg]

Please copy the full text of the error message and paste it here. It has important info about the error.

Also show the definitions for the variables used in the statement so we know what data type they are.

Type missmatch: cannot convert from void to boolean.

Image charak= new Image (new FileInputStream("head.jpg") );
ImageView character = new ImageView (charak);
character.setTranslateY (0); 			
character.setTranslateX (0);

What does the API doc say about the setTranslateY() method? What type of value does it return that could be used in an if statement?

Translate (JavaFX 8)
I dont understand here. Docs even dont bother to show simple example.

[Norm]

Type missmatch: cannot convert from void to boolean.

That says the expression that was used in the statement returned void, but a boolean value was required.
An if statement requires a boolean value.
What values do you want to compare with an if statement?

ImageView character = new ImageView (charak);

The variable character is of type ImageView. You need to read the API doc for the ImageView class.
What does the API doc say about the setTranslateY() method? What type of value does it return that could be used in an if statement?
Is there another method that returns a value that could be tested?

Why is there a link for the Translate class in your post?

[jim829]

In the first code example I see nothing which would give that error.

In the first code example or document link I see no setTranslateX or setTranslateY methods.
Edit: The above statement is incorrect. I found the methods in the Node class.

And if the JavaDoc showed examples of everything it would be as big as the unabridged OED.

Regards,
Jim

[Norm]

Also posted at: https://coderanch.com/t/674837/java/setTranslateY

Strange the OP couldn't ask the question like it was asked there.

[jim829]

Ok. My earlier reply was incorrect. ImageView inherits from Node and Node has the get and set translate methods. I missed it the first time I was reading the java doc. However, set returns void (i.e. nothing) and get returns a double. So you can't use them as boolean values. So you would need to use them like this:

if (character.getTranslateX() == 50) {
   // then do something.
}

Regards,
Jim

[asdfg]

Do I really have formatted question so unclear? I even made a short-video.

[Norm]

This was left off the questions on this forum:

I want to write a code:

if character coordinates is Y=50 and X=0,

[benji2505]

So, our friends at Coderanch gave away the solution - too bad . Norm pretty much gave you the solution in post #4 already. As a night read you should check "Encapsulation" as well as "Getters and Setters". It is one of the fundamental concepts in OOP. JavaFX follows this concept very closely.

I do think that the proposed solution at coderanch is incorrect in the sense of the game though. I would think that you disable the down button for all cells on the lower line and generally disable the respective buttons on the outside lines.

So, did you figure out how to set the Button instances disabled?