I need your help please (image on/off)

Processing Coding Questions
1

Hello guys,
I need help please, The thing would be, when I press a key an image appears and when I press it again it disappears.
i’ve made it into my code and the image doesn’t shows up
I put my code here and if someone sees something wrong about it tell me pls ^^

PImage chaines;
PImage dvd;
float b;
float d = 1;
int speedX = 3;
int speedY = 3;
float x = random(width);
float y = random(height);
bug[] bugs = new bug[3000];
boolean freeze = false;
boolean slow = false;
boolean showImage = false;

color white = (255);
void setup (){
  fullScreen();
  chaines = loadImage ("chaine2.png");

  dvd = loadImage ("dvd.png");

  for (int i = 0; i < bugs.length; i++) {
    bugs[i] = new bug();
  }
}
void draw () { 
background (white);
if (showImage) {
  image (chaines,width/2,height/2); }
if (freeze) { 
  for (int i = 0; i < bugs.length; i++) {
    bugs[i].fall();
    bugs[i].show();
}
    if (slow) {   
  frameRate(30); }
}
     
bouger(); 
couleurs();
}

void couleurs() {
  
b = b + d;
tint (b, 255-b, b);

if (b > 255 || b < 0) { d = d * -1;}
}

void bouger() {

  x = x + speedX;
 y = y + speedY;

if (x < 0 || x > width - 339) { speedX = speedX * -1;} 
if (y < 0 || y > height - 149) { speedY = speedY * -1;}

image (dvd,x,y);
}

void keyPressed() { 

if (key == 'b' || key == 'B') {
  if (freeze) { 
  freeze = false;}
  else { freeze = true;}
 if (slow) {
  slow = !slow; }
}
if (key == 'v') {
  if (showImage) {
    showImage = !showImage; }
}
}

And on another outlet

class bug {
  float x = random(width);
  float y = random (-100,100);
  float speedY = random(5,10);
  float taille = random (50, 70);
  void fall() {
    y = y+speedY;
    
    if (y > height) {
      y = random (-100,-100);
    }
  }
  void show() {
    fill(0);
    line(x,y,x,y+taille);
  }
  }
2 
boolean toggle = false;
void setup() { size(600,600); }
void draw() { 
  background(0);
  if(toggle) {
    rect(200,200,300,300);
  }
}
void keyPressed() {
  if(key == ' ') toggle = !toggle;
}

And I suggest you use Ctrl + t to tidy up the code. It is far easier to read that way

1 Like
3

Not correct

Leave out the if !!!

the assignment is enough: showImage = ! showImage;

(I had an if in your last thread but with OTHER assignments…)

Chrisir

4

Putting together the replies you have so far this code shows how to use the spacebar to toggle and image (I have used a green rectangle but you can change the code)

boolean  showImage = false;

void setup() {
  size(400, 200);
}

void draw() {
  background(255);
  fill(100, 200, 100);
  noStroke();
  if (showImage) {
    // replace this with your own code
    rect(50, 50, 200, 85);
  }
}

void keyTyped() {
  // Toggle 'image' using spacebar
  if (key == ' ') showImage = !showImage;
}
2 Likes