How to override in for loop ?

Programming Questions

phildar

How to override in for loop ?

in Programming Questions • 4 months ago

Hi_I'm not sure about the tittle but here's a problem I have:

I have four int array wich are:
distance[i] = milieu[i]
distance_dest[i] = milieu_dest[i];

I have a boolean array which tells me for each index wich is true, that distance[indextrue] = distance_dest[indextrue]. And other values stay distance[indexfalse] = milieu[indexfalse].
How could it be possible to compute such a weird thing ? ;-)
here's the code I have to clear this explanation:
thank you.

int distance[] = new int[9];
int distance_dest[] = new int[9];
boolean dest[] = new boolean[9];
int milieu_dest[] = new int[9];
int milieu[] = new int[9];
void setup()
{
size(400, 400);
}
void draw()
{
for (int i = 0; i<9; i++)
{
distance[i] = milieu[i];
distance_dest[i] = milieu_dest[i];
}
//I would like for each boolean true in the array => distance[i(boolean true)]=milieudest[i(boolean true)]
// and the others values don't change.
}

Replies(6)

Alex Pilk..

Re: How to override in for loop ?

4 months ago

Like this?

int distance[] = new int[9];
int distance_dest[] = new int[9];
boolean dest[] = new boolean[9];
int milieu_dest[] = new int[9];
int milieu[] = new int[9];
void setup()
{
size(400, 400);
}
void draw()
{
for (int i = 0; i<9; i++)
{
if(dest[i]==true){
distance[i]=distance_dest[i];
} else {
distance[i] = milieu[i];
}
}

PhiLho

Re: How to override in for loop ?

4 months ago

Also you might be interested by the articles:

phildar

Re: How to override in for loop ?

4 months ago

of course !! thanks both of you !!

GoToLoop

Re: How to override in for loop ?

4 months ago

This version displays distance_origin[] value before & after the boolean comparison:

final static byte NUM = 9;

final static short distance_origin[] = new short[NUM];
final static short distance_dest[] = new short[NUM];
final static boolean dest[] = new boolean[NUM];

final static short milieu_origin[] = new short[NUM];
final static short milieu_dest[] = new short[NUM];

void setup() {
  size(150, 150);
  noLoop();

  randomize();
}

void draw() {
  background(0);

  for (int i = 0; i != NUM; i++) {
    text(distance_origin[i], 10, i*10 + 10);
    distance_origin[i] = dest[i] ? distance_dest[i] : milieu_origin[i];
    text(distance_origin[i], width - 50, i*10 + 10);
  }
}

void mouseClicked() {
  keyTyped();
}

void keyTyped() {
  redraw();
  randomize();
}

void randomize() {
  for (int i = 0; i != NUM; i++) {
    distance_origin[i] = distance_dest[i] = (short) random(width);
    dest[i] = random(1) > .5;

    milieu_origin[i] = (short) random(height);
    milieu_dest[i] = (short) random(height);
  }
}

GoToLoop

Re: How to override in for loop ?

4 months ago

And now, a " class -ified" version of it:

final static byte NUM = 9;
final static Destination[] dests = new Destination[NUM];

void setup() {
  size(150, 150);
  noLoop();

  for ( int i = 0; i != NUM; dests[i++] = new Destination() );
}

void draw() {
  background(0);

  for (int i = 0; i != NUM; i++) {
    final Destination d = dests[i];

    text(d.distance_origin, 10, i*10 + 10);
    d.distance_origin = d.checkDest();
    text(d.distance_origin, width - 50, i*10 + 10);
  }
}

void mouseClicked() {
  keyTyped();
}

void keyTyped() {
  redraw();

  for (Destination d: dests)  d.randomize();
}

final class Destination {
  boolean dest;
  short distance_origin, distance_dest;
  short milieu_origin, milieu_dest;

  Destination() {
    randomize();
  }

  void randomize() {
    dest = random(1) > .5;
    distance_origin = distance_dest = (short) random(width);
    milieu_origin = (short) random(height);
    milieu_dest = (short) random(height);
  }

  short checkDest() {
    return dest ? distance_dest : milieu_origin;
  }
}

phildar

Re: How to override in for loop ?

4 months ago

really nice !!!

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