why doesnt anything work?

Programming Questions

Lunaris L..

in Programming Questions • 28 days ago

So i was just was doing simple homework and i deleted the LAST block of code for a mouse click and now nothing works can someone tell me what happened?

void setup() {
size(400,400);
background(0); //black
}
void keyPressed() {
if(key==CODED){
if(keyCode == UP)
background(0,0,255);//blue
if(keyCode == DOWN)
background(255);//white
if(keyCode == LEFT)
background(255,0,0);//red
if(keyCode == RIGHT)
background(0,255,0);//red
if(keyCode == ENTER)
background(0);//back to black
}
}
void mousePressed() {
if(true); {
stroke(0); //body1 stroke
fill(0,0,255); //body1 fill
rectMode(CORNERS);
rect(50,200,100,325); //body1
ellipseMode(CENTER);
stroke(0); //head stroke
ellipse(75,190,80,80); //head1
fill(255,127,0); //eye fill
ellipse(62.5,180,20,40); //eye 1 of 1
ellipse(87.5,180,20,40); //eye 2 of 1
stroke(0);
fill(255,0,0);
ellipse(75,325,75,15); //hoverpad
stroke(0);
line(50,250,25,200); //arm 1 of 1
line(100,250,125,200); //arm 2 of 1
line(62.5,215,87.5,215); //mouth
}
}

BTW, all it does it load the black screen.

Replies(2)

kooogy

you have no draw() method. i'm not sure it'll work without one.

yes, add an empty draw() and it'll work

void draw() {
}

but i also recommend putting frameRate(2); in the setup or it'll max out your processor waiting for a a mousepress

GoToLoop

Re: why doesnt anything work?

28 days ago

A more tidied up code:

// http://forum.processing.org/topic/why-doesnt-anything-work

void setup() {
  size(400, 400);
  noLoop();             //turns off draw() auto callback

  rectMode(CORNERS);
  ellipseMode(CENTER);

  stroke(0);            //general stroke color (black)
  keyPressed();         //initial BG color (black)
}

void draw() {
  fill(#0000FF);               //body & head fill (blue)
  rect(50, 200, 100, 325);     //body
  ellipse(75, 190, 80, 80);    //head

  fill(#FF8000);               //eyes fill (orange)
  ellipse(62, 180, 20, 40);    //eye #1 of 2
  ellipse(87, 180, 20, 40);    //eye #2 of 2

  line(50, 250, 25, 200);      //arm #1 of 2
  line(100, 250, 125, 200);    //arm #2 of 2
  line(62, 215, 87, 215);      //mouth

  fill(#FF0000);               //hoverpad fill (red)
  ellipse(75, 325, 75, 15);    //hoverpad
}

void keyPressed() {
  final int k = keyCode;

  if      (k == UP)      background(#0000FF);   //blue
  else if (k == DOWN)    background(-1);        //white
  else if (k == LEFT)    background(#FF0000);   //red
  else if (k == RIGHT)   background(#008000);   //green
  else                   background(0);         //anything else go black

  redraw(); // activates 1-only draw() go
}

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