Problem with fill() square (like a button)

Programming Questions

sagifr

Problem with fill() square (like a button)

in Programming Questions • 1 year ago

hi,

*** I have a new question in my comment ***

I want to click on square and make him black (in start it's white)when I click it's make all the square black but when I leave it's go back to white so I want to know how to fill just one when I click (when I leave it's stay black) how can I do that ???

float x = 100;
float y = 50;
float w = 50;
float h = 50;
int count=0;
void setup() {
size(500, 500);
background(255);
stroke(0);
noFill();
fill(255);
}
void draw() {
background(255);
for (int i=0;i<60*7;i=i+60) {
for (int j=0;j<60*5;j=j+60) {
rect(x+j, y+i, w, h);
}
}
if (mousePressed) {
for (int j=0;j<7*60;j=j+60) {
for (int i=0;i<5*60;i=i+60) {
if (mouseX>x+i && mouseX <x+w+i && mouseY>y+j&& mouseY <y+h+j) {
println("Row="+mouseX+" Column"+mouseY);
println("button number ("+((i/60)+1)+","+((j/60)+1)+") was pressed");
fill(0);
}
}
}
}
else{
fill(255);
}
}

Thank :)

Replies(10)

Chrisir

Re: Problem with fill() square (like a button)

1 year ago

you need a 2D array (a data structure that looks like your grid with colums and rows) to store the info if it's been clicked for each cell in the grid.

then when you paint the grid you look up for each cell if this cell has been clicked in the array.

please look here:
http://www.processing.org/learning/2darray/

sagifr

Re: Problem with fill() square (like a button)

1 year ago

Thank you very much Chrisir that what i need (i try to do that with matrix but without object before :/) but know it's work great. now I have more question i want to do a box that I will can get a number or something so i thing i need to use Serial communiction so i go to the libraries of that and i cope a code to see how it's work but i get a Error so i wish that you can help me with that. so when i try to run it i get " ARRAYINDEXOUTOFBOUNDSEXCEPTION :0" about the Serual.list()[0] what i can do ???? and when i delete that ...list... that open but i cant enter anything or I worng and serial is for arduino and more so if can ??? How I can to do that???

// Example by Tom Igoe
import processing.serial.*;
Serial myPort; // The serial port
void setup() {
// List all the available serial ports
println(Serial.list());
// I know that the first port in the serial list on my mac
// is always my Keyspan adaptor, so I open Serial.list()[0].
// Open whatever port is the one you're using.
myPort = new Serial(this, Serial.list()[0], 9600);
}
void draw() {
while (myPort.available() > 0) {
int inByte = myPort.read();
println(inByte);
}
}

Thank

PhiLho

Re: Problem with fill() square (like a button)

1 year ago

The ArrayIndexOutOfBounds on Serial.list() means Processing isn't able to find any serial port on your system.

sagifr

Re: Problem with fill() square (like a button)

1 year ago

ok know all it's ok but i have one more question. I want to get a number from the computer and print him so the only way is to use the KEY and after i get in on variable and then to do TEXT to this variable ? or have another way to do this that more good from what I say ????

edit: how i can change the size of object matrix after i create him (Columns and rows) (to give the matrix more and less column or rows(in the draw))

Thank :)

PhiLho

Re: Problem with fill() square (like a button)

1 year ago

for (int j=0;j<7*60;j=j+60) {
for (int i=0;i<5*60;i=i+60) {

Don't hard-code the numbers like that.
Put their values in variables. Not only it would be more consistent (the end value can depend on the step) but also you will be able to adjust these values.

sagifr

Re: Re: Problem with fill() square (like a button)

1 year ago

hi PhiLho the code that you say is the first code that I use to learn how its work after that I write more code and like you say i was used in values for the numbers 7 and 5 but thank you.

and if someone can help me in my new questions

I want to get a number from the computer and print him so the only way is to use the KEY and after i get in on variable and then to do TEXT to this variable ? or have another way to do this that more good from what I say ????

edit: how i can change the size of object matrix after i create him (Columns and rows) (to give the matrix more and less column or rows(in the draw))

PhiLho

Re: Problem with fill() square (like a button)

1 year ago

My last answer was in response to your edit part already...
I can only mention the code I see, anyway.

Chrisir

Re: [WatchList] Problem with fill() square (like a button)

1 year ago - via EMail-to-forum

When you use an Array, you could use append

sagifr

Re: Problem with fill() square (like a button)

1 year ago

hi I have a new question. in my program I need to scroll from left to right with something like this

just from left to right i try to find a command and i dont find anything so if someone know how to do this and told me or something like this i will appreciate it *I use window 500P,500P and i need to see the 600P*

thank :)

calsign

Re: Problem with fill() square (like a button)

1 year ago

You want a scrollbar?
Perhaps a GUI library such as controlP5 will help?

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