added comments

scripts/control.js

@@ -8,6 +8,7 @@ function setVars() {
 
 document.onloadend = setVars;
 
+/*Controls vertical movement*/
 function verticalMovement(keyCode) {
     var playerLeft = player.offsetLeft;
     var playerTop = player.offsetTop;
@@ -33,6 +34,7 @@ function verticalMovement(keyCode) {
     }
 }
 
+/*Controls horizontal movement*/
 function horizontalMovement(keyCode) {
     var playerLeft = player.offsetLeft;
     var playerTop = player.offsetTop;
@@ -58,6 +60,7 @@ function horizontalMovement(keyCode) {
     }
 }
 
+/*Controls movement interval*/
 function move() {
     if (currentKey == 0) {
         verticalMovement(lastKey);
@@ -73,11 +76,13 @@ function move() {
     
 }
 
+/*Gets triggered keystroke*/
 function getKey(event) {
     lastKey = currentKey;
     currentKey = event.keyCode;
 }
 
+/*Identifies if no keys are pressed*/
 function stop(event) {
     if (currentKey == lastKey) {
         currentKey = 0;

scripts/enemy.js

@@ -2,6 +2,7 @@
 var aliens = [];
 var bombs = [];
 
+/*Spawns Enemies*/
 function spawnEnemy() {
    var alien = document.createElement("div");
    alien.className = "alien";
@@ -19,6 +20,7 @@ function spawnEnemy() {
    }
 }
 
+/*Spawns a bomb*/
 function spawnBomb() {
     var alien = aliens[Math.floor(Math.random() * aliens.length)];
     var bomb = document.createElement("div");
@@ -33,6 +35,7 @@ function spawnBomb() {
     console.log("Bomb Spawned")
 }
 
+/*Makes a random bomb fall a set amount and explodes if colliding with the floor*/
 function fall() {
     var bomb = bombs[Math.floor(Math.random() * bombs.length)];
     bomb[0].style.top = (bomb[0].offsetTop + 10) + "px";
@@ -52,6 +55,7 @@ function fall() {
     }
 }
 
+/*Checks to see if player is colliding with exploded bomb*/
 function checkExplosion() {
     for (let element of document.getElementsByClassName("explosion")) {
         var elemRect = element.getBoundingClientRect();

scripts/launch.js

@@ -6,6 +6,7 @@ function showDisplay(mode) {
     }
 }
 
+/*Registers interval functions and trigger functions*/
 function load() {
     document.addEventListener("keydown", getKey)
     document.addEventListener("keyup", stop)
@@ -16,6 +17,7 @@ function load() {
     document.getElementById("start").style.display = "block";
 }
 
+/*Starts game functionality*/
 function startGame() {
     showDisplay("block");
     document.getElementById("start").style.display = "none";
@@ -23,4 +25,5 @@ function startGame() {
     setInterval(spawnEnemy, 2500);
     setInterval(checkExplosion, 10);
 }
+
 document.addEventListener("DOMContentLoaded", load);