Here I am again. I made this following code in Processing, but nothing occurs. I think it have something to do with the booleans. I think I did something wrong in the void captureSave, movieShades and showImage with the 'if's,' but I can't figure out what :(

This is the code:
____________________________________________________________________________________________


//Pre-setup

//Videos
import processing.video.*;
Movie Shades;
Capture myCapture;

//booleans
boolean a = false;
boolean b = false;
boolean c = false;

//Images
PImage d, e;



//Setup

void setup() {
    //workspace
    size(640, 480, P2D);
 
    //loadimages
    d = loadImage("bg.jpg");
    e = loadImage("createimage.jpg");
 
    //Capture setup
    myCapture = new Capture(this, width, height, 30);
   
    //Movie Shades setup
     Shades = new Movie(this, "film.mov");
}


 //Make the Capture
 
 void captureEvent (Capture myCapture){
      myCapture.read ();
    }


//Draw

void draw(){
 
  //Is always visable
  image(d, 0, 0);
  }


  //Hide till mouse is pressed
 
  //Webcam capture, save image
  void captureSave(){
    if (a = true);
    image(myCapture, 0, 0);
    saveFrame("data/createimage.jpg");
    delay (300);
    myCapture.stop();
   }
  
   //Show movie Shades
    void movieShades(){
    if (b = true);
    image (Shades, 0, 0);
    Shades.play();
    }
   
  //Show saved image with blend
  void showImage(){
  if (c = true);
  blend(e, 0, 0, 640, 480, 0, 0, 640, 480, MULTIPLY);
  }
 
 
  //Mouse is pressed
 
  void mousePressed(){
    a = true;
    b = true;
    c = true;
  }
 
 
  //End code