Finished Assignment Week 3 Day 1

assets/js/footer-functions.js

@@ -24,7 +24,7 @@ function getBoxTests() {
 function getBottomLeftTriangleTests() {
     testGetBottomLeftTriangle("*", 1);
     testGetBottomLeftTriangle("*\n**", 2);
-    testGetBottomLeftTriangle("*\n**\n**", 3);
+    testGetBottomLeftTriangle("*\n**\n***", 3);
 }
 
 function getUpperLeftTriangleTests() {
@@ -42,7 +42,7 @@ function getPyramidTests() {
 
 
 function getCheckerboardTests() {
-    testGetCheckerboard(" *\n* ", 2, 2);
-    testGetCheckerboard(" * \n* *\n * ", 3, 3);
+    testGetCheckerboard(" *\n* \n", 2, 2);
+    testGetCheckerboard(" * \n* *\n * \n", 3, 3);
     testGetCheckerboard(" * \n* *\n * \n* *\n", 3, 4);
 }

assets/js/shapes.js

@@ -1,31 +1,154 @@
+/*  Get a Simple Line
+    length : length of the line
+    return : String that resembles a line consisting of *
+*/
 function getLine(length) {
-    // TODO - write method definition here
+    if (length < 0) {
+        throw new Error("Illegal arguement - length needs to be greater than 0");
+    }
+
+    var line = "";
+    while (length > 0) {
+        line += "*";
+        length--;
+    }
+    return line;
 }
 
+/*  Get a Box
+    width : width of box
+    height : height of box
+    return : String that resembles a box that consists of *
+*/
+function getBox(width, height) {
+    if (width < 0) {
+        throw new Error("Illegal arguement - width needs to be greater than 0");
+    } else if (height < 0) {
+        throw new Error("Illegal arguement - height needs to be greater than 0");
+    }
 
+    var line = new String();
+    for (var heightIndex = 0; height > heightIndex; heightIndex++) {
+        line += getLine(width);
 
-function getBox(width, height) {
-    // TODO - write method definition here
+        //All Boxes will have a \n at the end of each line (even last)
+        line += "\n";
+    }
+    return line;
 }
 
 
-
+/*  Get a Right Triangle that Bottom is located bottom left
+    length : of longest side of triangle
+    return : String that resembles a right triangle
+*/
 function getBottomLeftTriangle(length) {
-    // TODO - write method definition here
-}
+    if (length < 0) {
+        throw new Error("length needs to be greater than 0");
+    }
+    var triangle = new String();
+    var lineNumber = 1;
+    while (length >= lineNumber) {
+        triangle += getLine(lineNumber);
+
 
+        //Make sure every row besides last gets a new line
+        if (lineNumber != length) {
+            triangle += "\n";
+        }
+        lineNumber++;
+    }
+    return triangle;
+}
 
+/*  Get a Right Triangle that Bottom is located top left
+    length : of longest side of triangle
+    return : String that resembles a right triangle
+*/
 function getUpperLeftTriangle(length) {
-    // TODO - write method definition here
+    if (length < 0) {
+        throw new Error("Illegal arguement - length needs to be greater than 0");
+    }
+    var triangle = new String();
+    var lineNumber = length;
+    while (lineNumber > 0) {
+        triangle += getLine(lineNumber);
+        lineNumber--;
+
+        //Make sure every row besides last gets a new line
+        if (lineNumber != 0) {
+            triangle += "\n";
+        }
+    }
+    return triangle;
 }
 
 
+/*  Get a Pyramid whose row = length and longest col = length * 2 - 1
+    length : amount of rows the pyramid will have
+    return : String that resembles a pyramid
 
+    PS: I know there's an easier way to this but I couldn't think of it at this time.
+    #TODO come back and figure out pattern to combine three inner for loops into one loop
+*/
 function getPyramid(length) {
-    // TODO - write method definition here
-}
+    if (length < 0) {
+        throw new Error("Illegal arguement - length needs to be greater than 0");
+    }
+    col = length * 2 - 1;
+    row = length;
+    var amountStars = 1;
+    var pyramid = new String();
+    for (var j = 0; row > j; j++) {
 
+        //Calculate amount spaces on row
+        var amountSpaces = Math.floor((col - amountStars) / 2);
 
+        //Add first set of spaces
+        for (var i = 0; amountSpaces > i; i++) {
+            pyramid += " ";
+        }
+
+        //Add Stars
+        for (var i = 0; amountStars > i; i++) {
+            pyramid += "*";
+        }
+
+        //Add second set of spaces
+        for (var i = 0; amountSpaces > i; i++) {
+            pyramid += " ";
+        }
+
+        //Make sure every row besides last gets a new line
+        if(j != row - 1){
+            pyramid += "\n";
+        }
+        amountStars += 2;
+    }
+    return pyramid;
+}
+
+/*  Get a Checkerboard with "odd" cells = "*" and "even" = " "
+    width : width of the checkerboard
+    height : height of the checkerboard
+    return : String that resembles a checkerboard type pattern.
+*/
 function getCheckerboard(width, height) {
-    // TODO - write method definition here
+    if (width < 0) {
+        throw new Error("Illegal arguement - width needs to be greater than 0");
+    } else if (height < 0) {
+        throw new Error("Illegal arguement - height needs to be greater than 0");
+    }
+
+    var checkerboard = new String();
+    for (var heightIndex = 0; height > heightIndex; heightIndex++) {
+        for (var widthIndex = 0; width > widthIndex; widthIndex++) {
+            //Depending on Cell position if x y added together is even than space otherwise *
+            checkerboard += ((heightIndex + widthIndex) % 2 == 0) ? " " : "*";
+        }
+
+        //Every line gets a \n
+        checkerboard += "\n";
+    }
+    return checkerboard;
 }

index.html

@@ -14,7 +14,6 @@
   <script type="text/javascript" src="./assets/js/utils.js"></script>
   <script type="text/javascript" src="./assets/js/shapes.js"></script>
   <script type="text/javascript" src="./assets/js/header-functions.js"></script>
-
 </head> <!-- header ends here -->
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