setting i = var rather than number

Programming Questions

notaproce..

setting i = var rather than number

in Programming Questions • 6 months ago

I want to set my index to a variable rather than a name in my sketch. because further up im doing this:

//random first video at program start
int fL = int(random(0, 5));
int fR = int(random(0, 5));
int eL = int(random(0, 5));
int eR = int(random(0, 5));
int mL = int(random(0, 5));
int mR = int(random(0, 5));

and it is used for this:
//play chosen index
foreheadLeft[fL].play();
foreheadRight[fR].play();
eyesLeft[eL].play();
eyesRight[eR].play();
mouthLeft[mL].play();
mouthRight[mR].play();

then affected by user with mouseclick i want it to increment now but from originally chosen video:

if (mouseX < cLineX && mouseY < tLineY) {
    for (int i = fL; i < topLeftVid.length; i++) {
      foreheadLeft[i] = new Movie(this, topLeftVid[i]);
      foreheadLeft[i-1].pause();
      foreheadLeft[i].play();
      foreheadLeft[i].loop();
    }
    fill(255);
    ellipse(mouseX, mouseY, 10, 10);
}

the error is "cannot find anything named "fL"

how do i get the program to get that value from somewhere in the sketch?
thanks for you help!

Replies(2)

v.k.

Re: setting i = var rather than number

6 months ago

This should work (as you can see below). The problem should be a "scope" problem, are you declaring "fL" inside setup()? Varables declared inside a block only exists within that block. So in draw() they are not accessible, declare at global level (outside any block, usually at the beginning of code) and it will work , look:

int fL;
void setup() {
fL = int(random(30));
println("fL = "+ fL);
noLoop();
}
void draw() {
for (int i = fL; i < 50; i++) {
println(i);
}
}

notaproce..

Re: Re: setting i = var rather than number

6 months ago

yup thanks...i ended up re-managing the code but i know for the future now!...i have come a long way since then...i am now having an issue where my sketch freezes when i do my mouse click...i thought it could be a memory problem but i dedicated 1GB of memory to the sketch...please reply asap!! here is the state of the mouse click section:

//To cycle through videos
void mouseClicked() {
//forehead-left
if (mouseX < cLineX && mouseY < tLineY) {
    for (int i = 0; i < topLeftVid.length; i++) {
      useI = fL + i;
      if ( useI <= 5 ) {
        if ( useI != 0) {
          foreheadLeft[useI - 1].pause();
        }
        else {
          foreheadLeft[5].pause();
        }
        foreheadLeft[useI].play();
      }
      else if (useI > 5) {
        i = 0;
      }
      fL = useI - 1;
    }
    fill(255);
    ellipse(mouseX, mouseY, 10, 10);
}

//forehead-right
else if (mouseX > cLineX && mouseY < tLineY) {
    for (int i = 0; i < topRightVid.length; i++) {
      useI = fR + i;
      if ( useI <= 5 ) {
        if ( useI != 0) {
          foreheadRight[useI - 1].pause();
        }
        else {
          foreheadRight[5].pause();
        }
        foreheadRight[useI].play();
      }
      else if (useI > 5) {
        i = 0;
      }
      fR = useI - 1;
    }
    fill(0);
    ellipse(mouseX, mouseY, 10, 10);
}

//eyes-left
else if (mouseX < cLineX && mouseY > tLineY && mouseY < bLineY) {
    for (int i = 0; i < midLeftVid.length; i++) {
      useI = eL + i;
      if ( useI <= 5 ) {
        if ( useI != 0) {
          eyesLeft[useI - 1].pause();
        }
        else {
          eyesLeft[5].pause();
        }
        eyesLeft[useI].play();
        if ( useI == 5 ) {
          i = 0;
        }
      }
      else if (useI > 5) {
        i = 0;
      }
      eL = useI-1;
    }
    fill(200, 0, 0);
    ellipse(mouseX, mouseY, 10, 10);
}

//eye-right
else if (mouseX > cLineX && mouseY > tLineY && mouseY < bLineY) {
    for (int i = 0; i < midRightVid.length; i++) {
      useI = eR + i;
      if ( useI <= 5 ) {
        if ( useI != 0) {
          eyesRight[useI - 1].pause();
        }
        else {
          eyesRight[5].pause();
        }
        eyesRight[useI].play();
        if ( useI == 5 ) {
          i = 0;
        }
      }
      else if (useI > 5) {
        i = 0;
      }
      eR = useI-1;
    }
    fill(0, 155, 0);
    ellipse(mouseX, mouseY, 10, 10);
}

//chin-left
else if (mouseX < cLineX && mouseY > bLineY) {
    for (int i = 0; i < botLeftVid.length; i++) {
      useI = mL + i;
      if ( useI <= 5 ) {
        if ( useI != 0) {
          mouthLeft[useI - 1].pause();
        }
        else {
          mouthLeft[5].pause();
        }
        mouthLeft[useI].play();
        if ( useI == 5 ) {
          i = 0;
        }
      }
      else if (useI > 5) {
        i = 0;
      }
      mL = useI;
    }
    fill(0, 50, 155);
    ellipse(mouseX, mouseY, 10, 10);
}

//chin-right
else if (mouseX > cLineX && mouseY > bLineY) {
    for (int i = 0; i < botRightVid.length; i++) {
      useI = mR + i;
      if ( useI <= 5 ) {
        if ( useI != 0) {
          mouthRight[useI - 1].pause();
        }
        else {
          mouthRight[5].pause();
        }
        mouthRight[useI].play();
        if ( useI == 5 ) {
          i = 0;
        }
        mR = useI;
      }
      fill(255, 255, 0);
      ellipse(mouseX, mouseY, 10, 10);
    }
}
}

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