//Samia Ahmed, samiaa@andrew.cmu.edu
//A reproduction of Text Rain by Camille Utterback
//Carnegie Mellon University: 51-482
//January 2011
 
import processing.video.*;
Capture capture;
char poem[][] = {{'I', ' ', 'l', 'i', 'k', 'e', ' ', 't', 'a', 'l', 'k', 'i', 'n', 'g', ' ', 'w', 'i', 't', 'h', ' ', 'y', 'o', 'u', ',' },
                 {'s', 'i', 'm', 'p', 'l', 'y', ' ', 't', 'h', 'a', 't', ':', ' ', 'c', 'o', 'n', 'v', 'e', 'r', 's', 'i', 'n', 'g', ',' }};
int poemLength = 24;
int position[][] = new int[2][poemLength];
int speed[][] = new int[2][poemLength];
color captureColor;
 
 
 
void setup() {
 
  size(640, 480);
  background(0, 0, 0);
  capture = new Capture(this, width, height, 30);
 
  //sets the speed at which the letters drop, and initial position
   for (int i = 0; i < 2; i++){
    for (int k = 0; k < poemLength; k++){
    speed[i][k] = int(random(4, 10));
    }
  }
 
}
 
void draw() {
 
  pushMatrix();
  scale(-1.0, 1.0);
  image(capture, -capture.width, 0);
  filter(GRAY);
  popMatrix();
 
  for (int i = 0; i < 2; i++){
    for (int k = 0; k < poemLength; k++){
      //these set when the red and blue texts are predominant
      if (i == 0 && (second() > 0 && second() < 35)){
      if(millis()%100 == 0)
        position[i][k] = -1000;
      }
      if (i == 1 && (second() > 30 || second() < 5)){
        if (millis()%100 == 0)
        position[i][k] = -1000;
      }
 
 
      captureColor = get(width/poemLength*k+(width/poemLength), position[i][k]+speed[i][k]);
      //moving the letters
      if (position[i][k] > height || random(1000) > 990) //out of bounds, and random deletion
        position[i][k] = -30;
      else if (position[i][k]+speed[i][k] >= height || position[i][k] < speed[i][k] || red(captureColor) > 100) //legal moves
        position[i][k] = position[i][k]+speed[i][k];
      else {
       while(red(get(width/poemLength*k+(width/poemLength), position[i][k]-speed[i][k])) < 100 && position[i][k] > 0) //jumping out of black
        position[i][k] = position[i][k]-speed[i][k];  
        }
 
 
      if (i == 0){
        fill(255, 0, 0);  
        text(poem[i][k], width/(poemLength+2)*k+width/poemLength*2.5, position[i][k]);
      }
      else if (i == 1){
        fill(0, 0, 255);
        text(poem[i][k], width/(poemLength+2)*k+width/poemLength, position[i][k]);
      }
    }
  }
 
}
 
void captureEvent(Capture capture) {
  capture.read();
}