How can I track the pressing of two or more keys?
I need to track a combination of two buttons. I wrote this code, but it does not work correctly.
primaryStage.addEventFilter(KeyEvent.KEY_PRESSED, new EventHandler<KeyEvent>(){
public void handle(KeyEvent event){
if(event.getCode() == UP && event.getCode() == RIGHT){camera.cameraControlXY(-0.5,0.5);};
}
});
In the sample code there is only one function, in the full code there are other functions, separately for each key. When you press a combination, functions for individual keys are triggered. I found similar questions, but the answers did not clarify the situation. I saw a lot of similar listeners for pressing buttons and I don’t really understand how they differ. thanks in advance for your reply
java javafx
asked Nov 11 at 23:30
lalalend
156
add a comment |
I need to track a combination of two buttons. I wrote this code, but it does not work correctly.
primaryStage.addEventFilter(KeyEvent.KEY_PRESSED, new EventHandler<KeyEvent>(){
public void handle(KeyEvent event){
if(event.getCode() == UP && event.getCode() == RIGHT){camera.cameraControlXY(-0.5,0.5);};
}
});
In the sample code there is only one function, in the full code there are other functions, separately for each key. When you press a combination, functions for individual keys are triggered. I found similar questions, but the answers did not clarify the situation. I saw a lot of similar listeners for pressing buttons and I don’t really understand how they differ. thanks in advance for your reply
java javafx
asked Nov 11 at 23:30
lalalend
156
2
Use aSet. On each key press, you put the key in theSet, on each release, you remove it. You then have a "processing" method which make determinations about what to do based on what's in theSet
– MadProgrammer
Nov 11 at 23:34
As @MadProgrammer said, using Set can help you. A bit more info can be found here
– Sai Dandem
Nov 11 at 23:44
OK I understood. I will deal with it. And you could not even poke where to look, to understand how to track the duration of pressing a key?@MadProgrammer
– lalalend
Nov 11 at 23:49
add a comment |
I need to track a combination of two buttons. I wrote this code, but it does not work correctly.
primaryStage.addEventFilter(KeyEvent.KEY_PRESSED, new EventHandler<KeyEvent>(){
public void handle(KeyEvent event){
if(event.getCode() == UP && event.getCode() == RIGHT){camera.cameraControlXY(-0.5,0.5);};
}
});
In the sample code there is only one function, in the full code there are other functions, separately for each key. When you press a combination, functions for individual keys are triggered. I found similar questions, but the answers did not clarify the situation. I saw a lot of similar listeners for pressing buttons and I don’t really understand how they differ. thanks in advance for your reply
java javafx
asked Nov 11 at 23:30
lalalend
156
I need to track a combination of two buttons. I wrote this code, but it does not work correctly.
primaryStage.addEventFilter(KeyEvent.KEY_PRESSED, new EventHandler<KeyEvent>(){
public void handle(KeyEvent event){
if(event.getCode() == UP && event.getCode() == RIGHT){camera.cameraControlXY(-0.5,0.5);};
}
});
In the sample code there is only one function, in the full code there are other functions, separately for each key. When you press a combination, functions for individual keys are triggered. I found similar questions, but the answers did not clarify the situation. I saw a lot of similar listeners for pressing buttons and I don’t really understand how they differ. thanks in advance for your reply
java javafx
java javafx
asked Nov 11 at 23:30
lalalend
156
asked Nov 11 at 23:30
lalalend
156
asked Nov 11 at 23:30
lalalend
156
asked Nov 11 at 23:30
lalalend
156
asked Nov 11 at 23:30
lalalend
156
156
2
Use aSet. On each key press, you put the key in theSet, on each release, you remove it. You then have a "processing" method which make determinations about what to do based on what's in theSet
– MadProgrammer
Nov 11 at 23:34
As @MadProgrammer said, using Set can help you. A bit more info can be found here
– Sai Dandem
Nov 11 at 23:44
OK I understood. I will deal with it. And you could not even poke where to look, to understand how to track the duration of pressing a key?@MadProgrammer
– lalalend
Nov 11 at 23:49
add a comment |
2
Use aSet. On each key press, you put the key in theSet, on each release, you remove it. You then have a "processing" method which make determinations about what to do based on what's in theSet
– MadProgrammer
Nov 11 at 23:34
As @MadProgrammer said, using Set can help you. A bit more info can be found here
– Sai Dandem
Nov 11 at 23:44
OK I understood. I will deal with it. And you could not even poke where to look, to understand how to track the duration of pressing a key?@MadProgrammer
– lalalend
Nov 11 at 23:49
2
2
Use a
Set. On each key press, you put the key in the Set, on each release, you remove it. You then have a "processing" method which make determinations about what to do based on what's in the Set– MadProgrammer
Nov 11 at 23:34
Use a
Set. On each key press, you put the key in the Set, on each release, you remove it. You then have a "processing" method which make determinations about what to do based on what's in the Set– MadProgrammer
Nov 11 at 23:34
As @MadProgrammer said, using Set can help you. A bit more info can be found here
– Sai Dandem
Nov 11 at 23:44
As @MadProgrammer said, using Set can help you. A bit more info can be found here
– Sai Dandem
Nov 11 at 23:44
OK I understood. I will deal with it. And you could not even poke where to look, to understand how to track the duration of pressing a key?@MadProgrammer
– lalalend
Nov 11 at 23:49
OK I understood. I will deal with it. And you could not even poke where to look, to understand how to track the duration of pressing a key?@MadProgrammer
– lalalend
Nov 11 at 23:49
add a comment |
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2
Use a
Set. On each key press, you put the key in theSet, on each release, you remove it. You then have a "processing" method which make determinations about what to do based on what's in theSet– MadProgrammer
Nov 11 at 23:34
As @MadProgrammer said, using Set can help you. A bit more info can be found here
– Sai Dandem
Nov 11 at 23:44
OK I understood. I will deal with it. And you could not even poke where to look, to understand how to track the duration of pressing a key?@MadProgrammer
– lalalend
Nov 11 at 23:49