Transcribe Binary_To_Decimal to Processing.

CodingChallenges/CC_119_Binary_to_Decimal_Conversion/Processing/CC_119_Binary_to_Decimal_Conversion/CC_119_Binary_to_Decimal_Conversion.pde

@@ -0,0 +1,58 @@
+// Daniel Shiffman
+// http://youtube.com/thecodingtrain
+// http://codingtra.in
+// Processing transcription: Chuck England
+
+// Coding Challenge 120: Bit Shifting
+// https://youtu.be/oCBlwsY8sR4
+
+// p5.js editor version: 0.7.2 (December 21, 2018)
+// https://editor.p5js.org/codingtrain/sketches/Hk8CVYvi7
+
+String num = "10101001";
+Bit[] byte_ = new Bit[8];
+
+void setup() {
+  size(400, 200);
+  println(binaryToDecimal(num));
+  float w = width / 8;
+  for (int i = 0; i < 8; i++) {
+    byte_[i] = new Bit(w / 2 + i * w, 50, w - 4);
+    byte_[i].setState(num.charAt(i) == '1');
+  }
+}
+
+String getBinaryString() {
+  String num = "";
+  for (int i = 0; i < byte_.length; i++) {
+    byte_[i].show();
+    num += byte_[i].state ? "1" : "0";
+  }
+  return num;
+}
+
+void draw() {
+  background(51);
+
+  num = getBinaryString();
+
+  noStroke();
+  fill(255);
+  textSize(50);
+  text(Integer.toString(binaryToDecimal(num)), 10, 130);
+}
+
+void mousePressed() {
+  for (int i = 0; i < byte_.length; i++) {
+    byte_[i].toggle(mouseX, mouseY);
+  }
+}
+
+int binaryToDecimal(String val) {
+  int sum = 0;
+  for (int i = 0; i < val.length(); i++) {
+    String bit = String.valueOf(val.charAt(val.length() - i - 1));
+    sum += Integer.parseInt(bit) * pow(2, i);
+  }
+  return sum;
+}

CodingChallenges/CC_119_Binary_to_Decimal_Conversion/Processing/CC_119_Binary_to_Decimal_Conversion/bit.pde

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+// Daniel Shiffman
+// http://youtube.com/thecodingtrain
+// http://codingtra.in
+// Processing transcription: Chuck England
+
+// Coding Challenge 120: Bit Shifting
+// https://youtu.be/oCBlwsY8sR4
+
+// p5.js editor version: 0.7.2 (December 21, 2018)
+// https://editor.p5js.org/codingtrain/sketches/Hk8CVYvi7
+
+class Bit {
+  float x;
+  float y;
+  float diameter;
+  Boolean state;
+
+  Bit(float x_, float y_, float d_) {
+    x = x_;
+    y = y_;
+    diameter = d_;
+    state = false;
+  }
+
+  void setState(Boolean state_) {
+    state = state_;
+  }
+
+  void toggle(float x, float y) {
+    float d = dist(x, y, this.x, this.y);
+    if (d < diameter / 2) {
+      state = !state;
+    }
+  }
+
+  void show() {
+    stroke(255);
+    strokeWeight(2);
+    fill(state ? color(0, 255, 0) : color(0));
+    ellipse(x, y, diameter, diameter);
+  }
+}