keyboard input to change a string variable...

Programming Questions

secondsky

keyboard input to change a string variable...

in Programming Questions • 2 years ago

Hi all, i'm working on this existent script, and i would like to insert the "wpArticle" string with the keyboard during the execution of the program as a interactive input.

I've tried with the lP5 library but without success...

Can anyone help me?

I'm really a beginner.

Thanks.

Replies(3)

amnon.owed

Re: keyboard input to change a string variable...

2 years ago

Here is some code to type a string interactively.

You can use space, backspace, delete, shift and enter as you would normally.

String myText = "Type something";
PFont font;
void setup() {
size(1280,720);
font = createFont("Sans Serif",40);
textFont(font,40);
textAlign(CENTER,CENTER);
}
void draw() {
background(0);
text(myText, 0,0, width,height);
}
void keyPressed() {
if (keyCode == BACKSPACE) {
if (myText.length() > 0) {
myText = myText.substring(0, myText.length()-1);
}
} else if (keyCode == DELETE) {
myText = "";
} else if (keyCode != SHIFT) {
myText = myText + key;
}
}

secondsky

Re: keyboard input to change a string variable...

2 years ago

Thank you, very clear.

I did some little change and now the script is this:

String myText = "Type something";
String input = myText;
PFont font;
void setup() {
size(500,500);
font = createFont("Sans Serif",40);
textFont(font,10);
textAlign(LEFT,CENTER);
}
void draw() {
background(0);
text(myText, 30,0, width,height);
text(input, 30,50, width,height);
}
void keyPressed() {
if (keyCode == BACKSPACE) {
if (myText.length() > 0) {
myText = myText.substring(0, myText.length()-1);
}
}
else if (keyCode == DELETE) {
myText = "";
}
else if (keyCode != SHIFT) {
myText = myText + key;
}
if (keyCode == ' ') {
myText = myText.substring(0, myText.length()-1);
myText = myText + '_';}
if (keyCode == ENTER) {
input = myText;
myText = "";
}
}

But i can't understand why, if i use it in substitution of the wpArticles string of the originan code, it is not automatically updated if i change the name, who is a input for a query to yahoo yql...

bavarskis

Re: keyboard input to change a string variable...

2 years ago

This is great.

What would be a way to delete the first line when text reaches the bottom? Cos now it just stops.