Question

Compare string array values

Asked by: clivecrawdevil

Hi Experts

I am designing a MUD game and wanted to include a dance feature, something similar to dance dance revolution but for the keyboard. Unfortunately you cannot use keypress in a telnet session so I opted for an array of strings that are printed to the screen and the user has to type them back.

This is my code

public void dance(){

                        String input = null;
                        String[] word = new String[20];
                        String[] moves = {"up ","up "};
                        
                        for(int i=0; i< moves.length; i++){
                              Game.server.out(moves[i]);
                              try {
                                    input = Game.server.ir.readLine();
                                    word = input.split(" ");
                                    String out = moves[i];
                                    for(int j=0; j<word.length; j++){
                                    String in = word[j];
                                    if(in.equalsIgnoreCase(out)){
                                          Game.server.out("Cool");
                                    }
                                    }
                              } catch (IOException e) {
                                    // TODO Auto-generated catch block
                                    e.printStackTrace();
                              }
                        try{
                        Thread.sleep(1000);
                        }
                        catch(Exception e)
                        {
                        System.out.println(e);
                        }
                        }                  
      }

It prints the array to the screen and accepts the incoming text but does not seem to compare the values tried all sorts can’t get it to work would appreciate any help.

What I would like is the word to print to the out stream the user enters it into the in stream and if it is right the out stream prints cool or something like that and then prints the next item in the array.

Thanks

Clive

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Asked On
2007-03-29 at 12:54:54ID22481432
Tags

string

,

array

,

compare

Topic

Java Programming Language

Participating Experts
1
Points
500
Comments
15

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Answers

 

by: ADSLMarkPosted on 2007-03-29 at 13:20:57ID: 18819492

Did you set auto-flush on true, while getting the outputstream?

You could also do:
Game.server.out("Cool");
Game.server.flush();

Mark

 

by: ADSLMarkPosted on 2007-03-29 at 13:22:00ID: 18819498

In case of auto-flushing you probably have sth like:
new PrintWriter(this.server.getOutputStream());

change that into:
new PrintWriter(this.server.getOutputStream(), true);

Mark

 

by: clivecrawdevilPosted on 2007-03-29 at 13:46:25ID: 18819689

Already had it flushing as you suggested in your second comment mark, I have also implemented flush() as advised in your first comment unfortunately it has no effect.

Does the code look correct? I haven't made any obvious errors?

Thanks for trying

Clive

 

by: ADSLMarkPosted on 2007-03-29 at 13:49:43ID: 18819714

Looks ok i guess, it's not much code :-)

 

by: clivecrawdevilPosted on 2007-03-29 at 13:53:14ID: 18819742

Cheers really annoying just keep messing with it i guess!

 

by: ADSLMarkPosted on 2007-03-29 at 14:01:53ID: 18819795

Maybe you typed the wrong word? :-)
If you could give me some code which I can easily compile and try then I can have a better look at it, for now as i see it, it looks like good code.

Mark

 

by: ADSLMarkPosted on 2007-03-29 at 14:02:29ID: 18819803

PS: wasn't kidding about the "did you type the correct word", i see a space after the "up", is that correct?

Mark

 

by: clivecrawdevilPosted on 2007-03-29 at 14:07:54ID: 18819841

You know what Mark your a legend! As soon as i took out the spaces it started to work.

Got another one for you shall i repost or submit it here?

Thanks again

Clive

 

by: ADSLMarkPosted on 2007-03-29 at 14:11:00ID: 18819859

:-) haha, funny, well glad I got my glasses on. :-)

I don't mind, whatever you choose.

 

by: clivecrawdevilPosted on 2007-03-29 at 14:59:23ID: 18820136

I was hoping to put mulitiple arrays and have one choose at random is that easy to do? would i use math.random?

If it's tricky i will repost it for more points.

Thanks again
Clive

 

by: ADSLMarkPosted on 2007-03-29 at 15:03:01ID: 18820155

That's easy i guess, you can use a 2 dimensional array or a list of arrays.
I'm not sure what you want to randomize, so let's say you have a fixed number of "random sequences", then you can put them all inside an array and pick a random element with:

int index = (int) Math.floor(Math.random()*somearray.length)
...somearray[index]...

Mark

 

by: clivecrawdevilPosted on 2007-03-29 at 15:16:17ID: 18820245

I was thinking of having multiple arrays such as

 String[] moves1 = {"up ","up "};
 String[] moves2 = {"up ","up "};
 String[] moves3 = {"up ","up "};

and then picking one of the arrays at random each time the code is executed.

Is your way a bit more elegant?

Thanks

Clive

 

by: ADSLMarkPosted on 2007-03-29 at 15:21:26ID: 18820280

your way is not possible, since you cannot dynamically bind a number to a variable name like:

String[] randomMoves = (moves + Math.random());

So you need sth like;

String[][] moves= { {"up","left"}
                            ,  {"down","up"}
                            ,  {"up","right"} };

Now you can access each array with just an integer like:
moves[1] will get the array: {"down","up"}

Mark.

 

by: clivecrawdevilPosted on 2007-03-29 at 15:23:36ID: 18820302

Cool i understand thanks again Mark.

Hope you have a good day

Clive

 

by: ADSLMarkPosted on 2007-03-29 at 15:24:29ID: 18820309

Always, good luck Clive.

20120131-EE-VQP-002

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