Initial catchat commit.

pixel_image.rb

@@ -0,0 +1,128 @@
+require "./pixel.rb"
+
+class PixelImage
+  @@magickImg = nil
+
+  @@pixels = []
+
+  def initialize(i)
+    @@magickImg = i
+    @@width = @@magickImg.columns
+    @@height = @@magickImg.rows
+
+    self.buildPixels
+  end
+
+  def buildPixels
+    tmp_pixels = @@magickImg.get_pixels(0, 0, @@width, @@height)
+
+    for x in 0..@@width-1
+      @@pixels[x] = []
+      for y in 0..@@height-1
+        @@pixels[x][y] = Pixel.new(tmp_pixels.pop)
+      end
+    end
+  end
+
+  # Only used for generating truly random base images
+  def randomPixels
+    for x in 0..@@width-1
+      @@pixels[x] = []
+      for y in 0..@@height-1
+        pixel = 0
+
+        r = rand(256)
+        g = rand(256)
+        b = rand(256)
+
+        pixel = (pixel << 8) | r
+        pixel = (pixel << 8) | g
+        pixel = (pixel << 8) | b
+        @@pixels[x][y] = Pixel.new(pixel)
+      end
+    end
+  end
+
+  def saveImage
+    puts "and the mult is..."
+
+    puts @@width * @@height
+
+    pixel_array = []
+
+    for x in @@pixels.reverse.each do
+      for y in x.reverse.each do
+        pix = y.getMagickPixel
+
+        pixel_array.append(pix.red)
+        pixel_array.append(pix.green)
+        pixel_array.append(pix.blue)
+      end
+    end
+
+    new_img = Magick::Image.new(@@width, @@height)
+
+
+    new_img.import_pixels(0, 0, @@width, @@height, "RGB", pixel_array)
+
+    new_img.write("arty_new.png")
+  end
+
+  def getPixels
+    return @@pixels
+  end
+
+  def getPixel(x, y)
+    return @@pixels[x][y]
+  end
+
+  def setPixelBits(x, y, bits)
+    @@pixels[x][y] = Pixel.new(bits)
+  end
+
+  def getSize
+    return {"width": @@width, "height": @@height}
+  end
+
+  def fuzzImage
+    for x in 0..@@width-1 do
+      for y in 0..@@height-1 do
+        @@pixels[x][y].randomize
+      end
+    end
+  end
+
+  def getSalt
+    salt = 0
+
+    for x in 0..@@width-1
+      for y in 0..@@height-1
+        pix = @@pixels[x][y].getPixelBits
+
+        salt = salt << 6 | ((pix >> 2) & 0b111111)
+        pix = pix >> 8
+        salt = salt << 6 | ((pix >> 2) & 0b111111)
+        pix = pix >> 8
+        salt = salt << 6 | ((pix >> 2) & 0b111111)
+        pix = pix >> 8
+
+      end
+    end
+
+    h = Digest::SHA512.hexdigest(salt.to_s(16))
+
+    return h
+  end
+
+  def getBits(o)
+    msg_bytes = o.unpack("c*")
+
+    msg_bits = 0
+
+    for b in msg_bytes
+      msg_bits = (msg_bits << 8) | b
+    end
+
+    return msg_bits
+  end
+end