Cam's Project

cam.js

getYourCards(numbersOnly) {
  fs.createReadStream(this.imagePath).pipe(new PNG({
    filterType: -1
  })).on("parsed", function() {
    let yourCardsSuit = [];
    console.log("Array created");
    console.log("Entered read stream");
    // Loop through each vertical pixel of the image
    for (var y = 0; y < this.height; y++) {
      // Loop through each horizontal pixel of the image
      for (var x = 0; x < this.width; x++) {
        // Give current pixel 4 bytes 0: R, 1: G, 2:B, 3:A
        var idx = (this.width * y + x) << 2;
        // Check if we are looking for numbers or suits
        if (numbersOnly) {
          // Add an overlay to the image for better reading
          // Bring the overlay down to this y level
          if (y <= 679) {
            this.data[idx] = 255;
            this.data[idx + 1] = 255;
            this.data[idx + 2] = 255;
          }
          // Bring the overlay over from the left
          if (x <= 670) {
            this.data[idx] = 255;
            this.data[idx + 1] = 255;
            this.data[idx + 2] = 255;
          }
          // Bring the overlay up from the bottom
          if (y >= this.height - 367) {
            this.data[idx] = 255;
            this.data[idx + 1] = 255;
            this.data[idx + 2] = 255;
          }
          // Bring the overlay from the right
          if (x >= this.width - 1080) {
            this.data[idx] = 255;
            this.data[idx + 1] = 255;
            this.data[idx + 2] = 255;
          }
          // Puts an overlay between the cards
          if (x >= 715 && x <= 765) {
            this.data[idx] = 255;
            this.data[idx + 1] = 255;
            this.data[idx + 2] = 255;
          }
          if (this.data[idx] < 230 || this.data[idx + 1] < 230 || this.data[
              idx + 2] < 230) {
            this.data[idx] = 0;
            this.data[idx + 1] = 0;
            this.data[idx + 2] = 0;
          }
          // If we are looking for the suit
        } else {
          // if the x and y are at this position
          // This position is the left card of the hand
          if (x == 685 && y == 726) {
            // random calculation to sort colors by 1 number
            var color = this.data[idx] + this.data[idx + 1] + this.data[
              idx + 2];
            // If the green in a card is less than 10 add 47. this is for hearts
            if (this.data[idx + 1] <= 10) {
              color += 47;
            }
            switch (true) {
              // Club
              case (color > 201 && color < 221):
                yourCardsSuit.push("C");
                this.newHand = true;
                break;
                // Diamond
              case (color > 294 && color < 314):
                yourCardsSuit.push("D");
                this.newHand = true;
                break;
                // Spade
              case (color > 140 && color < 160):
                yourCardsSuit.push("S");
                this.newHand = true;
                break;
                // Heart
              case (color > 252 && color < 272):
                yourCardsSuit.push("H");
                this.newHand = true;
                break;
              default:
                console.log("No first card found");
                this.newHand = false;
            }
          }
          // If x and y are on the second card
          if (x == 777 && y == 726) {
            // random calculation to sort colors by 1 number
            var color = this.data[idx] + this.data[idx + 1] + this.data[
              idx + 2];
            // If the green in a card is less than 10 add 47. this is for hearts
            if (this.data[idx + 1] <= 10) {
              color += 47;
            }
            switch (true) {
              // Club
              case (color > 201 && color < 221):
                yourCardsSuit.push("C");
                this.newHand = true;
                break;
                // Diamond
              case (color > 294 && color < 314):
                yourCardsSuit.push("D");
                this.newHand = true;
                break;
                // Spade
              case (color > 140 && color < 160):
                yourCardsSuit.push("S");
                this.newHand = true;
                break;
                // Heart
              case (color > 252 && color < 272):
                yourCardsSuit.push("H");
                this.newHand = true;
                break;
              default:
                console.log("No first card found");
                this.newHand = false;
            }
          }
        }
      }
    }
    if (numbersOnly) {
      this.pack().pipe(fs.createWriteStream('./images/yourHand.png'));
    }
    console.log("returned array");
    console.log(yourCardsSuit);
    return yourCardsSuit;
  });
}