convert classes to es6

(cherry picked from commit e7615d49a4071fe5b5f192884f142c9f3385211a)

src/js/net/minecraft/util/BlockRenderType.js

@@ -1,4 +1,4 @@
-window.BlockRenderType = class {
+export default class BlockRenderType {
     static BLOCK = 0;
     static TORCH = 1;
 }

src/js/net/minecraft/util/BoundingBox.js

@@ -1,4 +1,4 @@
-window.BoundingBox = class {
+export default class BoundingBox {
 
     /**
      * Bounding box

src/js/net/minecraft/util/EnumBlockFace.js

@@ -1,4 +1,11 @@
-window.EnumBlockFace = class {
+export default class EnumBlockFace {
+
+    static TOP = new EnumBlockFace(0, 1, 0);
+    static BOTTOM = new EnumBlockFace(0, -1, 0);
+    static NORTH = new EnumBlockFace(0, 0, -1);
+    static EAST = new EnumBlockFace(1, 0, 0);
+    static SOUTH = new EnumBlockFace(0, 0, 1);
+    static WEST = new EnumBlockFace(-1, 0, 0);
 
     constructor(x, y, z) {
         this.x = x;
@@ -47,24 +54,11 @@ window.EnumBlockFace = class {
         return null;
     }
 
-    static values() {
-        return [
-            EnumBlockFace.TOP,
-            EnumBlockFace.BOTTOM,
-            EnumBlockFace.NORTH,
-            EnumBlockFace.EAST,
-            EnumBlockFace.SOUTH,
-            EnumBlockFace.WEST
-        ];
+    equals(other) {
+        return this.x === other.x && this.y === other.y && this.z === other.z;
     }
-}
 
-{
-    let c = window.EnumBlockFace;
-    c.TOP = new EnumBlockFace(0, 1, 0);
-    c.BOTTOM = new EnumBlockFace(0, -1, 0);
-    c.NORTH = new EnumBlockFace(0, 0, -1);
-    c.EAST = new EnumBlockFace(1, 0, 0);
-    c.SOUTH = new EnumBlockFace(0, 0, 1);
-    c.WEST = new EnumBlockFace(-1, 0, 0);
-}
+    static values() {
+        return [EnumBlockFace.TOP, EnumBlockFace.BOTTOM, EnumBlockFace.NORTH, EnumBlockFace.EAST, EnumBlockFace.SOUTH, EnumBlockFace.WEST];
+    }
+}

src/js/net/minecraft/util/EnumSkyBlock.js

@@ -1,4 +1,4 @@
-window.EnumSkyBlock = class {
+export default class EnumSkyBlock {
     static SKY = 0;
     static BLOCK = 1;
 }

src/js/net/minecraft/util/Keyboard.js

@@ -1,17 +1,14 @@
-window.Keyboard = class {
+export default class Keyboard {
 
     static state = {};
 
     static create() {
         window.addEventListener('keydown', function (event) {
-            //event.preventDefault();
             Keyboard.state[event.code] = true;
-            //console.log("Key " + event.code + " down");
         });
         window.addEventListener('keyup', function (event) {
             event.preventDefault();
             delete Keyboard.state[event.code];
-            //console.log("Key " + event.code + " up");
         });
     };
 

src/js/net/minecraft/util/MathHelper.js

@@ -1,4 +1,4 @@
-window.MathHelper = class {
+export default class MathHelper {
 
     /**
      * Returns the greatest integer less than or equal to the double argument

src/js/net/minecraft/util/MetadataChunkBlock.js

@@ -1,4 +1,8 @@
-window.MetadataChunkBlock = class {
+import Block from "../client/world/block/Block.js";
+import EnumSkyBlock from "./EnumSkyBlock.js";
+import World from "../client/world/World.js";
+
+export default class MetadataChunkBlock {
 
     constructor(type, x1, y1, z1, x2, y2, z2) {
         this.type = type;

src/js/net/minecraft/util/MovingObjectPosition.js

@@ -1,4 +1,4 @@
-window.MovingObjectPosition = class {
+export default class MovingObjectPosition {
 
     constructor(vector, face, x, y, z) {
         this.vector = vector;

src/js/net/minecraft/util/Random.js

@@ -1,4 +1,4 @@
-window.Random = class {
+export default class Random {
 
     static instances = 0;
 

src/js/net/minecraft/util/Timer.js

@@ -1,4 +1,4 @@
-window.Timer = class {
+export default class Timer {
 
     static MS_PER_SECOND = 1000;
     static MAX_MS_PER_UPDATE = 1000;
@@ -63,4 +63,4 @@ window.Timer = class {
         this.passedTime -= this.ticks;
         this.partialTicks = this.passedTime;
     }
-}
+}

src/js/net/minecraft/util/Vector3.js

@@ -1,4 +1,4 @@
-window.Vector3 = class {
+export default class Vector3 {
 
     constructor(x = 0, y = 0, z = 0) {
         this.x = x;