[How do you know]: If someone double pressed right or left arrow keys?

ZafingSpace · 2016-02-19 02:15:40

I always wanted to find out how do you know to make your bot know it someone double pressed an arrow key.

I tried doing like the basics and do something simple like this.

The point of this code is double press right arrow key and a block will appear right next to them

   switch (e.KeyCode)
    {
        if case e.DoublePress.Right;
        {
             con.Send(bldatam, 0, 1-x, y, 12);
        } 
    }
    break;

It did not work at all!

I don't know if this code is simply or anything, can you help?

Koya · 2016-02-19 02:21:02

Are you pressing the keys in the application or in the world?

Either way you're going to need timestamps - so you can chose the variation of how quickly a double press is.

Prodigy

den3107 · 2016-02-19 15:38:47

As said, you need to know the time between 2 times the same key have been consecutively pressed, check if that time is rather short and you know if it's a double tap.

hummerz5 · 2016-02-19 17:27:58

Basically what these folks said
I have no idea how you came across that code... or how that had a chance of fitting in

bt gj nvrthlss

Tomahawk · 2016-02-19 20:12:09

# m - UserID is moving around
[0] <Integer> UserID
[1] <Double> PlayerPosX
[2] <Double> PlayerPosY
[3] <Double> SpeedX
[4] <Double> SpeedY
[5] <Integer> ModifierX
[6] <Integer> ModifierY
[7] <Integer> Horizontal
[8] <Integer> Vertical
[9] <Boolean> SpaceDown
[10] <Boolean> SpaceJustDown

If m[7] == 1, the right key is pressed, and if it is -1, the left key is pressed.

You essentially need to receive 4 messages with certain amounts of time between each, to detect a double-tap: player presses a key, lets go, presses it again, and lets go. The messages would look like:

m[7] == 1 --> Player presses right
- Short amount of time passes (e.g. < 1 sec)
m[7] == 0 --> Player lets go of right key
- Short amount of time
m[7] == 1 --> Player presses right again
- Short amount of time
m[7] == 0 --> Player lets go of right

After that, you would do whatever action is triggered by that key combo. To check the amount of time between key presses, you would check the amount of time that passes between received "m" packets, using a Stopwatch object - see http://www.dotnetperls.com/stopwatch.

However, I think you'd find that players would trigger that combo quite often without meaning to, while just bouncing around. It would be better to have a more obscure combo, like Up + Left + Up, that normal movement would be less likely to trigger. To detect an Up key press, you would need m[8] -> m[8] == 1 if player presses Down, and -1 if player presses Up.

^^ Up, Up, Down, Down, Left, Right, A, B, A, B, Start.

Koya · 2016-02-19 22:01:15

Tomahawk wrote:

# m - UserID is moving around
[0] <Integer> UserID
[1] <Double> PlayerPosX
[2] <Double> PlayerPosY
[3] <Double> SpeedX
[4] <Double> SpeedY
[5] <Integer> ModifierX
[6] <Integer> ModifierY
[7] <Integer> Horizontal
[8] <Integer> Vertical
[9] <Boolean> SpaceDown
[10] <Boolean> SpaceJustDown
If m[7] == 1, the right key is pressed, and if it is -1, the left key is pressed.
You essentially need to receive 4 messages with certain amounts of time between each, to detect a double-tap: player presses a key, lets go, presses it again, and lets go. The messages would look like:
m[7] == 1 --> Player presses right
- Short amount of time passes (e.g. < 1 sec)
m[7] == 0 --> Player lets go of right key
- Short amount of time
m[7] == 1 --> Player presses right again
- Short amount of time
m[7] == 0 --> Player lets go of right
After that, you would do whatever action is triggered by that key combo. To check the amount of time between key presses, you would check the amount of time that passes between received "m" packets, using a Stopwatch object - see http://www.dotnetperls.com/stopwatch.
However, I think you'd find that players would trigger that combo quite often without meaning to, while just bouncing around. It would be better to have a more obscure combo, like Up + Left + Up, that normal movement would be less likely to trigger. To detect an Up key press, you would need m[8] -> m[8] == 1 if player presses Down, and -1 if player presses Up.
^^ Up, Up, Down, Down, Left, Right, A, B, A, B, Start.

Add a timestamp to the player class so you don't end up with a new thread every time someone moves.

BuzzerBee · 2016-02-19 22:45:59

Tomahawk wrote:

After that, you would do whatever action is triggered by that key combo. To check the amount of time between key presses, you would check the amount of time that passes between received "m" packets, using a Stopwatch object - see http://www.dotnetperls.com/stopwatch.

I would highly recommend not using a Stopwatch for non-diagnostic purposes. Stopwatches are great and accurate for seeing how long a code segment takes to execute, but not so efficient to use in finished programs.

I would recommend using a TimeSpan or a Timer to check the time between presses.

Good luck!

hummerz5 · 2016-02-20 03:48:59

BuzzerBee wrote:

Tomahawk wrote:
After that, you would do whatever action is triggered by that key combo. To check the amount of time between key presses, you would check the amount of time that passes between received "m" packets, using a Stopwatch object - see http://www.dotnetperls.com/stopwatch.
I would highly recommend not using a Stopwatch for non-diagnostic purposes. Stopwatches are great and accurate for seeing how long a code segment takes to execute, but not so efficient to use in finished programs.
I would recommend using a TimeSpan or a Timer to check the time between presses.
Good luck!

cite ur src plz

Koya · 2016-02-20 20:55:38

ZafingSpace wrote:

switch (e.KeyCode)
    {
        if case e.DoublePress.Right;
        {
             con.Send(bldatam, 0, 1-x, y, 12);
        } 
    }
    break;

I just realised what you wrote, switch statements are for a list of answers not a list of if statements, you don't say `if case` - you say `case var:` inside `switch`

switch(VAR) {
    case var1:
        //Do something
    break;
    case var2:
    case var3:
        //Do something if var2 or var3 match VAR
    break;
    default:
        //If the result doesn't match anything else
    case;
}

Official Everybody Edits Forums

#1 2016-02-19 02:15:40

[How do you know]: If someone double pressed right or left arrow keys?

#2 2016-02-19 02:21:02

Re: [How do you know]: If someone double pressed right or left arrow keys?

#3 2016-02-19 15:38:47

Re: [How do you know]: If someone double pressed right or left arrow keys?

#4 2016-02-19 17:27:58

Re: [How do you know]: If someone double pressed right or left arrow keys?

#5 2016-02-19 20:12:09

Re: [How do you know]: If someone double pressed right or left arrow keys?

#6 2016-02-19 22:01:15

Re: [How do you know]: If someone double pressed right or left arrow keys?

#7 2016-02-19 22:45:59

Re: [How do you know]: If someone double pressed right or left arrow keys?

#8 2016-02-20 03:48:59

Re: [How do you know]: If someone double pressed right or left arrow keys?

#9 2016-02-20 20:55:38, last edited by Koya (2016-02-20 21:10:16)

Re: [How do you know]: If someone double pressed right or left arrow keys?

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