Labs 9-10

Lab 10/Parse Error.json

+{'Name':'ARISE Academy Charter High School','Type':'CS','Enrollments':'183','Male Dropouts':'1','Female Dropouts':'1','Dropouts':'2'},{'Name':'ASPIRA Bilingual Cyber Charter School','Type':'CS','Enrollments':'57','Male Dropouts':'2','Female Dropouts':'6','Dropouts':'8'},{'Name':'Ad Prima CS','Type':'CS','Enrollments':'26','Male Dropouts':'0','Female Dropouts':'0','Dropouts':'0'},{'Name':'Alliance for Progress CS','Type':'CS','Enrollments':'24','Male Dropouts':'0','Female Dropouts':'0','Dropouts':'0'},{'Name':'Philadelphia City SD','Type':'SD','Enrollments':'63983','Male Dropouts':'3092','Female Dropouts':'2644','Dropouts':'5736'}
+
+def mapper(jsmr_context, data): 
+  counts_map = eval(data)
+  for key in counts_map: 
+    count = counts_map[key]
+    jsmr_context.Emit(key, str(count))
+
+def reducer(jsmr_context, key): 
+  sum = 0 
+  while jsmr_context.HaveMoreValues(): 
+    count_str = jsmr_context.GetNextValue()
+    count = int(count_str)
+    sum += count 
+
+  output_str = 'total %s : %d' % (key, sum) 
+  jsmr_context.Emit(output_str)
+
+
+{  'Name':'ARISE Academy Charter High School', 'Type':'CS', 'Enrollments':'183', 'Male Dropouts':'1', 'Female Dropouts':'1', 'Dropouts':'2' }
+  { 'Name':'ASPIRA Bilingual Cyber Charter School', 'Type':'CS', 'Enrollments':'57', 'Male Dropouts':'2', 'Female Dropouts':'6', 'Dropouts':'8' }
+  { 'Name':'Ad Prima CS', 'Type':'CS', 'Enrollments':'26', 'Male Dropouts':'0', 'Female Dropouts':'0', 'Dropouts':'0' }
+  { 'Name':'Alliance for Progress CS', 'Type':'CS', 'Enrollments':'24', 'Male Dropouts':'0', 'Female Dropouts':'0',  'Dropouts':'0' }
+  { 'Name':'Philadelphia City SD', 'Type':'SD', 'Enrollments':'63983', 'Male Dropouts':'3092', 'Female Dropouts':'2644', 'Dropouts':'5736' }
+
+aj656@drexel.edu

Lab 9/matrix-rain_original.js

+var numberOfColumns = 50;
+var pixelsPerColumn = width / numberOfColumns;
+
+var columnY = [];
+for (var i=0; i<numberOfColumns; i++) {
+  columnY[i] = randomInt(0, height);
+}
+
+var characters = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%^&*";
+c.font = "12px Courier";
+
+function step() {
+  c.fillStyle = "rgba(0,0,0,0.05)";
+  c.fillRect(0, 0, width, height);
+  c.fillStyle = "#0f0";
+  for (var i=0; i<numberOfColumns; i++) {
+    var r = randomInt(0, characters.length);
+    var char = characters.substring(r, r+1);
+    c.fillText(char, i*pixelsPerColumn, columnY[i]);
+    columnY[i] += pixelsPerColumn;
+    if (columnY[i] > height) {
+      columnY[i] -= height;
+    }
+  }
+}
+
+loop(step, 100);
+
+-------------------
+
+function resetStar(star) {
+  star.x = width/2;
+  star.y = height/2;
+  
+  var speed = randomFloat(.1, 5);
+  var angle = randomFloat(0, 2*Math.PI);
+  star.dx = speed * Math.cos(angle);
+  star.dy = speed * Math.sin(angle);
+  star.brightness = randomFloat(2, 5);
+}
+
+var stars = [];
+for (var i=0; i<500; i++) {
+  var star = {};
+  resetStar(star);
+  stars.push(star);
+}
+
+function step() {
+  c.fillStyle = "#000";
+  c.fillRect(0, 0, width, height);
+  c.lineWidth = 2;
+  for (var i=0; i<stars.length; i++) {
+    var star = stars[i];
+    c.beginPath();
+    c.moveTo(star.x, star.y);
+    star.x += star.dx;
+    star.y += star.dy;
+    star.brightness = Math.min(star.brightness*1.05, 255);
+    c.lineTo(star.x, star.y);
+    var b = Math.round(star.brightness);
+    c.strokeStyle = "rgb(" + b + "," + b + "," + b + ")";
+    c.stroke();
+    c.closePath();
+    star.dx *= 1.05;
+    star.dy *= 1.05;
+    if (star.x < 0 || star.x > width || star.y < 0 || star.y > height) {
+      resetStar(star);
+    }
+  }
+}
+
+loop(step, 20);
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