Fix several crashes, added Multiplayer menu

src/teavm/java/com/mojang/minecraft/Minecraft.java

@@ -7,7 +7,6 @@ import com.mojang.minecraft.gui.*;
 import com.mojang.minecraft.item.Arrow;
 import com.mojang.minecraft.item.Item;
 import com.mojang.minecraft.level.Level;
-import com.mojang.minecraft.level.LevelIO;
 import com.mojang.minecraft.level.generator.LevelGenerator;
 import com.mojang.minecraft.level.liquid.LiquidType;
 import com.mojang.minecraft.level.tile.Block;
@@ -41,8 +40,9 @@ import java.io.*;
 import java.nio.IntBuffer;
 import java.util.Collections;
 import java.util.List;
+import java.util.zip.GZIPInputStream;
 
-public final class Minecraft implements Runnable {
+public final class Minecraft {
 
    public GameMode gamemode = new SurvivalGameMode(this);
    public int width;
@@ -60,7 +60,6 @@ public final class Minecraft implements Runnable {
    public GuiScreen currentScreen = null;
    public ProgressBarDisplay progressBar = new ProgressBarDisplay(this);
    public Renderer renderer = new Renderer(this);
-   public LevelIO levelIo;
    private int ticks;
    private int blockHitTime;
    public String levelName;
@@ -82,7 +81,6 @@ public final class Minecraft implements Runnable {
 
 
    public Minecraft() {
-      this.levelIo = new LevelIO(this.progressBar);
       this.ticks = 0;
       this.blockHitTime = 0;
       this.levelName = null;
@@ -96,7 +94,6 @@ public final class Minecraft implements Runnable {
       this.hasMouse = false;
       this.lastClick = 0;
       this.raining = false;
-      new SleepForeverThread(this);
       this.width = GL11.getCanvasWidth();
       this.height = GL11.getCanvasHeight();
    }
@@ -107,14 +104,16 @@ public final class Minecraft implements Runnable {
             this.currentScreen.onClose();
          }
 
-         if(var1 == null && this.player.health <= 0) {
+         if(var1 == null && level != null && player != null && this.player.health <= 0) {
             var1 = new GameOverScreen();
          }
 
          this.currentScreen = (GuiScreen)var1;
          if(var1 != null) {
             if(this.hasMouse) {
+               if(level != null) {
             	   this.player.releaseAllKeys();
+               }
                this.hasMouse = false;
                GL11.mouseSetGrabbed(false);
             }
@@ -168,18 +167,7 @@ public final class Minecraft implements Runnable {
          Item.initModels();
          Mob.modelCache = new ModelManager();
          GL11.glViewport(0, 0, this.width, this.height);
-         if(this.server != null) {
+         this.setCurrentScreen(new MainMenu());
-        	 Level var85;
-        	 (var85 = new Level()).setData(8, 8, 8, new byte[512]);
-             this.setLevel(var85, false);
-         } else {
-        	 Level level1 = new LevelUtils().load();
-        	 if(level1 == null) {
-        		 this.generateLevel(1);
-        	 } else {
-        		 this.setLevel(level1, true);
-        	 }
-         }
          this.particleManager = new ParticleManager(this.level);
          checkGLError("Post startup");
          this.hud = new HUDScreen(this, this.width, this.height);
@@ -899,7 +887,7 @@ public final class Minecraft implements Runnable {
    }
 
    public final void grabMouse() {
-	   if(!GL11.isFocused()) {
+	   if(!GL11.isFocused() || level == null) {
 		   return;
 	   }
 	   if (GL11.isPointerLocked2()) {
@@ -924,7 +912,7 @@ public final class Minecraft implements Runnable {
    }
 
    public final void pause() {
-      if(this.currentScreen == null) {
+      if(this.currentScreen == null && level != null) {
          this.setCurrentScreen(new PauseScreen());
       }
    }
@@ -1068,10 +1056,10 @@ public final class Minecraft implements Runnable {
             NetworkManager var20 = this.networkManager;
             if(this.networkManager.successful) {
                NetworkHandler var18 = var20.netHandler;
-               if(GL11.connectionOpen()) {
+               if(var18.channel.connectionOpen()) {
                   try {
                      NetworkHandler var22 = var20.netHandler;
-                     var20.netHandler.read(var22.in);
+                     var20.netHandler.channel.read(var22.in);
                      var4 = 0;
 
                      while(var22.in.position() > 0 && var4++ != 100) {
@@ -1116,7 +1104,17 @@ public final class Minecraft implements Runnable {
                                  var14.printStackTrace();
                               }
                               
-                              byte[] var51 = LevelIO.decompress(new ByteArrayInputStream(var42.levelData.toByteArray()));
+                              byte[] var51;
+                              try {
+                            	  DataInputStream var3;
+                            	  byte[] var1 = new byte[(var3 = new DataInputStream(new GZIPInputStream(new ByteArrayInputStream(var42.levelData.toByteArray())))).readInt()];
+                            	  var3.readFully(var1);
+                            	  var3.close();
+                            	  var51 = var1;
+                              } catch (Exception var2) {
+                            	  throw new RuntimeException(var2);
+                              }
+                              
                               var42.levelData = null;
                               short var55 = ((Short)var7[0]).shortValue();
                               short var63 = ((Short)var7[1]).shortValue();
@@ -1264,7 +1262,7 @@ public final class Minecraft implements Runnable {
                            }
                         }
 
-                        if(!GL11.connectionOpen()) {
+                        if(!var22.channel.connectionOpen()) {
                            break;
                         }
 
@@ -1273,7 +1271,7 @@ public final class Minecraft implements Runnable {
 
                      if(var22.out.position() > 0) {
                         var22.out.flip();
-                        var22.write(var22.out);
+                        var22.channel.write(var22.out);
                         var22.out.compact();
                      }
                   } catch (Exception var15) {
@@ -1507,7 +1505,9 @@ public final class Minecraft implements Runnable {
          this.particleManager.tick();
       }
       
+      if(player != null) {
     	  this.player.arrows = 1;
+      }
 
    }
    
@@ -1515,12 +1515,12 @@ public final class Minecraft implements Runnable {
 
 	private void levelSave() {
 		if(this.level == null) {
-			ticksUntilSave = this.hud.ticks + 600;
+			ticksUntilSave = this.ticks + 600;
 		}
 		
-		if(this.hud.ticks >= this.ticksUntilSave) {
+		if(this.ticks >= this.ticksUntilSave) {
 			new LevelUtils().save();
-			ticksUntilSave = this.hud.ticks + 600;
+			ticksUntilSave = this.ticks + 600;
 		}
 	}
 	

src/teavm/java/com/mojang/minecraft/SessionData.java

@@ -10,8 +10,6 @@ public final class SessionData {
    public String username;
    public String sessionId;
    public String mppass;
-   public boolean haspaid;
-
 
    public SessionData(String var1, String var2) {
       this.username = var1;

src/teavm/java/com/mojang/minecraft/SleepForeverThread.java

@@ -1,27 +0,0 @@
-package com.mojang.minecraft;
-
-public class SleepForeverThread extends Thread
-{
-	public SleepForeverThread(Minecraft minecraft)
-	{
-		setDaemon(true);
-
-		start();
-	}
-
-	@Override
-	public void run()
-	{
-		while(true)
-		{
-			try {
-				while(true)
-				{
-					Thread.sleep(2147483647L);
-				}
-			} catch (InterruptedException e) {
-				e.printStackTrace();
-			}
-		}
-	}
-}

src/teavm/java/com/mojang/minecraft/gui/HUDScreen.java

@@ -33,13 +33,16 @@ public final class HUDScreen extends Screen {
       this.width = var2 * 240 / var3;
       this.height = var3 * 240 / var3;
       
-      if(firstTimeLaunch) {
+      if(firstTimeLaunch && Minecraft.getMinecraft().level != null) {
     	  mc.setCurrentScreen(new PauseScreen());
     	  firstTimeLaunch = false;
       }
    }
 
    public final void render(float var1, boolean var2, int var3, int var4) {
+	  if(Minecraft.getMinecraft().level == null) {
+		  return;
+	  }
       FontRenderer var5 = this.mc.fontRenderer;
       this.mc.renderer.enableGuiMode();
       new TextureLocation("/gui/gui.png").bindTexture();

src/teavm/java/com/mojang/minecraft/gui/MainMenu.java

@@ -0,0 +1,54 @@
+package com.mojang.minecraft.gui;
+
+import org.lwjgl.opengl.GL11;
+
+import com.mojang.minecraft.Minecraft;
+import com.mojang.minecraft.level.Level;
+import com.mojang.minecraft.render.TextureLocation;
+
+import net.PeytonPlayz585.level.LevelUtils;
+import net.lax1dude.eaglercraft.adapter.Tessellator;
+
+public class MainMenu extends GuiScreen {
+	
+	public final void onOpen() {
+        this.buttons.clear();
+		this.buttons.add(new Button(1, this.width / 2 - 100, this.height / 4 + 48, "Singleplayer"));
+		this.buttons.add(new Button(2, this.width / 2 - 100, this.height / 4 + 72, "Multiplayer"));
+	}
+	
+	protected final void onButtonClick(Button var1) {
+		if(var1.id == 1) {
+			Level level1 = new LevelUtils().load();
+       	 	if(level1 == null) {
+       	 		Minecraft.getMinecraft().setCurrentScreen(null);
+       	 		this.minecraft.generateLevel(1);
+       	 		this.minecraft.player.releaseAllKeys();
+       	 	} else {
+       	 		Minecraft.getMinecraft().setCurrentScreen(null);
+       	 		this.minecraft.setLevel(level1, true);
+       	 	    this.minecraft.player.releaseAllKeys();
+       	 	}
+		} else if(var1.id == 2) {
+			this.minecraft.setCurrentScreen(new MultiplayerMenu());
+		}
+	}
+	
+	public final void render(int var1, int var2) {
+		int var4 = this.minecraft.width * 240 / this.minecraft.height;
+		int var5 = this.minecraft.height * 240 / this.minecraft.height;
+		GL11.glClear(16640);
+		Tessellator tessellator = Tessellator.instance;
+		int var7 = new TextureLocation("/dirt.png").bindTexture();
+		float var10 = 32.0F;
+		tessellator.startDrawing(7);
+		tessellator.setColorOpaque_I(4210752);
+		tessellator.addVertexWithUV(0.0F, (float)var5, 0.0F, 0.0F, (float)var5 / var10);
+		tessellator.addVertexWithUV((float)var4, (float)var5, 0.0F, (float)var4 / var10, (float)var5 / var10);
+		tessellator.addVertexWithUV((float)var4, 0.0F, 0.0F, (float)var4 / var10, 0.0F);
+		tessellator.addVertexWithUV(0.0F, 0.0F, 0.0F, 0.0F, 0.0F);
+		tessellator.draw();
+		super.render(var1, var2);
+	}
+
+}

src/teavm/java/com/mojang/minecraft/gui/MultiplayerMenu.java

@@ -0,0 +1,137 @@
+package com.mojang.minecraft.gui;
+
+import org.lwjgl.opengl.GL11;
+
+import com.mojang.minecraft.Minecraft;
+import com.mojang.minecraft.SessionData;
+import com.mojang.minecraft.level.Level;
+import com.mojang.minecraft.net.NetworkManager;
+import com.mojang.minecraft.render.TextureLocation;
+
+import net.PeytonPlayz585.level.LevelUtils;
+import net.lax1dude.eaglercraft.adapter.Tessellator;
+
+public class MultiplayerMenu extends GuiScreen {
+	
+	boolean textBox1Active = false;
+	boolean textBox2Active = false;
+	private int counter = 0;
+	String server = "";
+	String username = "";
+	Button connect;
+	
+	public final void onOpen() {
+		GL11.enableRepeatEvents(true);
+        this.buttons.clear();
+		this.buttons.add(connect = new Button(0, this.width / 2 - 100, this.height / 4 + 96 + 12, "Connect"));
+		this.buttons.add(new Button(1, this.width / 2 - 100, this.height / 4 + 120 + 12, "Cancel"));
+		connect.active = false;
+	}
+	
+	public final void tick() {
+		++this.counter;
+	}
+	
+	protected final void onButtonClick(Button var1) {
+		if(var1.id == 0 && var1.active) {
+			GL11.enableRepeatEvents(false);
+			minecraft.session = new SessionData(this.username, "mcpass");
+			Level var85;
+			(var85 = new Level()).setData(8, 8, 8, new byte[512]);
+			minecraft.setLevel(var85, false);
+			minecraft.networkManager = new NetworkManager(minecraft, this.server, minecraft.session.username, minecraft.session.mppass);
+		} else if(var1.id == 1) {
+			GL11.enableRepeatEvents(false);
+			minecraft.setCurrentScreen(new MainMenu());
+		}
+	}
+	
+	protected void onMouseClick(int var1, int var2, int var3) {
+		if(var3 == 0) {
+			if(var1 >= this.width / 2 - 100 && var1 < (this.width / 2 - 100) + 200 && var2 >= this.height / 4 - 10 + 50 + 18 && var2 < (this.height / 4 - 10 + 50 + 18) + 20) {
+				GL11.enableRepeatEvents(true);
+				textBox1Active = true;
+				textBox2Active = false;
+			} else if(var1 >= this.width / 2 - 100 && var1 < (this.width / 2 - 100) + 200 && var2 >= this.height / 4 - 10 + 50 - 20 && var2 < (this.height / 4 - 10 + 50 - 20) + 20) {
+				GL11.enableRepeatEvents(true);
+				textBox2Active = true;
+				textBox1Active = false;
+			} else {
+				GL11.enableRepeatEvents(false);
+				textBox1Active = false;
+				textBox2Active = false;
+			}
+		}
+		super.onMouseClick(var1, var2, var3);
+	}
+	
+	protected final void onKeyPress(char var1, int var2) {
+		if(textBox1Active) {
+			if(var2 == 14 && this.server.length() > 0) {
+				this.server = this.server.substring(0, this.server.length() - 1);
+			}
+			if("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 ,.:-_\'*!\\\"#%/()=+?[]{}<>@|$;".indexOf(var1) >= 0 && this.server.length() < 32) {
+				this.server = this.server + var1;
+			}
+			if(server.length() > 0 && username.length() > 0) {
+				connect.active = true;
+			} else {
+				connect.active = false;
+			}
+		} else if(textBox2Active) {
+			if(var2 == 14 && this.username.length() > 0) {
+				this.username = this.username.substring(0, this.username.length() - 1);
+			}
+			if("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 ,.:-_\'*!\\\"#%/()=+?[]{}<>@|$;".indexOf(var1) >= 0 && this.username.length() < 32) {
+				this.username = this.username + var1;
+			}
+			if(server.length() > 0 && username.length() > 0) {
+				connect.active = true;
+			} else {
+				connect.active = false;
+			}
+		}
+	}
+	
+	public final void render(int var1, int var2) {
+		int var4 = this.minecraft.width * 240 / this.minecraft.height;
+		int var5 = this.minecraft.height * 240 / this.minecraft.height;
+		GL11.glClear(16640);
+		Tessellator tessellator = Tessellator.instance;
+		int var7 = new TextureLocation("/dirt.png").bindTexture();
+		float var10 = 32.0F;
+		tessellator.startDrawing(7);
+		tessellator.setColorOpaque_I(4210752);
+		tessellator.addVertexWithUV(0.0F, (float)var5, 0.0F, 0.0F, (float)var5 / var10);
+		tessellator.addVertexWithUV((float)var4, (float)var5, 0.0F, (float)var4 / var10, (float)var5 / var10);
+		tessellator.addVertexWithUV((float)var4, 0.0F, 0.0F, (float)var4 / var10, 0.0F);
+		tessellator.addVertexWithUV(0.0F, 0.0F, 0.0F, 0.0F, 0.0F);
+		tessellator.draw();
+		
+		//username
+		drawBox((this.width / 2 - 100) - 1, (this.height / 4 - 10 + 50 - 20) - 1, (this.width / 2 - 100) + 200 + 1, (this.height / 4 - 10 + 50 - 20) + 20 + 1, -6250336);
+		drawBox(this.width / 2 - 100, this.height / 4 - 10 + 50 - 20, (this.width / 2 - 100) + 200, (this.height / 4 - 10 + 50 - 20) + 20, -16777216);
+		
+		this.drawString(this.fontRenderer, "Username:", this.width / 2 - 100, this.height / 4 - 10 + 50 - 30, 10526880);
+		
+		//server IP
+		drawBox((this.width / 2 - 100) - 1, (this.height / 4 - 10 + 50 + 18) - 1, (this.width / 2 - 100) + 200 + 1, (this.height / 4 - 10 + 50 + 18) + 20 + 1, -6250336);
+		drawBox(this.width / 2 - 100, this.height / 4 - 10 + 50 + 18, (this.width / 2 - 100) + 200, (this.height / 4 - 10 + 50 + 18) + 20, -16777216);
+		
+		this.drawString(this.fontRenderer, "Server address:", this.width / 2 - 100, this.height / 4 - 10 + 50 + 8, 10526880);
+		if(textBox1Active) {
+			boolean e = this.counter / 6 % 2 == 0;
+			this.drawString(this.fontRenderer, server + (e ? "_" : ""), (this.width / 2 - 100) + 4, (this.height / 4 - 10 + 50 + 18) + (20 - 8) / 2, 14737632);
+		} else {
+			this.drawString(this.fontRenderer, server, (this.width / 2 - 100) + 4, (this.height / 4 - 10 + 50 + 18) + (20 - 8) / 2, 14737632);
+		}
+		if(textBox2Active) {
+			boolean e = this.counter / 6 % 2 == 0;
+			this.drawString(this.fontRenderer, username + (e ? "_" : ""), (this.width / 2 - 100) + 4, (this.height / 4 - 10 + 50 - 20) + (20 - 8) / 2, 14737632);
+		} else {
+			this.drawString(this.fontRenderer, username, (this.width / 2 - 100) + 4, (this.height / 4 - 10 + 50 - 20) + (20 - 8) / 2, 14737632);
+		}
+		super.render(var1, var2);
+	}
+
+}

src/teavm/java/com/mojang/minecraft/level/LevelIO.java

@@ -1,258 +0,0 @@
-package com.mojang.minecraft.level;
-
-import com.mojang.minecraft.ProgressBarDisplay;
-import com.mojang.minecraft.level.Level;
-import com.mojang.minecraft.level.LevelObjectInputStream;
-import java.io.BufferedReader;
-import java.io.ByteArrayOutputStream;
-import java.io.DataInputStream;
-import java.io.DataOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.ObjectOutputStream;
-import java.io.OutputStream;
-import java.net.HttpURLConnection;
-import java.net.URL;
-import java.util.zip.GZIPInputStream;
-import java.util.zip.GZIPOutputStream;
-
-public final class LevelIO {
-
-   private ProgressBarDisplay progressBar;
-
-
-   public LevelIO(ProgressBarDisplay var1) {
-      this.progressBar = var1;
-   }
-
-   public final boolean save(Level var1, File var2) {
-      try {
-         FileOutputStream var5 = new FileOutputStream(var2);
-         save(var1, (OutputStream)var5);
-         var5.close();
-         return true;
-      } catch (Exception var4) {
-         var4.printStackTrace();
-         if(this.progressBar != null) {
-            this.progressBar.setText("Failed!");
-         }
-
-         try {
-            Thread.sleep(1000L);
-         } catch (InterruptedException var3) {
-            ;
-         }
-
-         return false;
-      }
-   }
-
-   public final Level load(File var1) {
-      try {
-         FileInputStream var5 = new FileInputStream(var1);
-         Level var2 = this.load((InputStream)var5);
-         var5.close();
-         return var2;
-      } catch (Exception var4) {
-         var4.printStackTrace();
-         if(this.progressBar != null) {
-            this.progressBar.setText("Failed!");
-         }
-
-         try {
-            Thread.sleep(1000L);
-         } catch (InterruptedException var3) {
-            ;
-         }
-
-         return null;
-      }
-   }
-
-   public final boolean saveOnline(Level var1, String var2, String var3, String var4, String var5, int var6) {
-      if(var4 == null) {
-         var4 = "";
-      }
-
-      if(this.progressBar != null && this.progressBar != null) {
-         this.progressBar.setTitle("Saving level");
-      }
-
-      try {
-         if(this.progressBar != null && this.progressBar != null) {
-            this.progressBar.setText("Compressing..");
-         }
-
-         ByteArrayOutputStream var7 = new ByteArrayOutputStream();
-         save(var1, (OutputStream)var7);
-         var7.close();
-         byte[] var10 = var7.toByteArray();
-         if(this.progressBar != null && this.progressBar != null) {
-            this.progressBar.setText("Connecting..");
-         }
-
-         HttpURLConnection var12;
-         (var12 = (HttpURLConnection)(new URL("http://" + var2 + "/level/save.html")).openConnection()).setDoInput(true);
-         var12.setDoOutput(true);
-         var12.setRequestMethod("POST");
-         DataOutputStream var13;
-         (var13 = new DataOutputStream(var12.getOutputStream())).writeUTF(var3);
-         var13.writeUTF(var4);
-         var13.writeUTF(var5);
-         var13.writeByte(var6);
-         var13.writeInt(var10.length);
-         if(this.progressBar != null) {
-            this.progressBar.setText("Saving..");
-         }
-
-         var13.write(var10);
-         var13.close();
-         BufferedReader var11;
-         if(!(var11 = new BufferedReader(new InputStreamReader(var12.getInputStream()))).readLine().equalsIgnoreCase("ok")) {
-            if(this.progressBar != null) {
-               this.progressBar.setText("Failed: " + var11.readLine());
-            }
-
-            var11.close();
-            Thread.sleep(1000L);
-            return false;
-         } else {
-            var11.close();
-            return true;
-         }
-      } catch (Exception var9) {
-         var9.printStackTrace();
-         if(this.progressBar != null) {
-            this.progressBar.setText("Failed!");
-         }
-
-         try {
-            Thread.sleep(1000L);
-         } catch (InterruptedException var8) {
-            ;
-         }
-
-         return false;
-      }
-   }
-
-   public final Level loadOnline(String var1, String var2, int var3) {
-      if(this.progressBar != null) {
-         this.progressBar.setTitle("Loading level");
-      }
-
-      try {
-         if(this.progressBar != null) {
-            this.progressBar.setText("Connecting..");
-         }
-
-         HttpURLConnection var6;
-         (var6 = (HttpURLConnection)(new URL("http://" + var1 + "/level/load.html?id=" + var3 + "&user=" + var2)).openConnection()).setDoInput(true);
-         if(this.progressBar != null) {
-            this.progressBar.setText("Loading..");
-         }
-
-         DataInputStream var7;
-         if((var7 = new DataInputStream(var6.getInputStream())).readUTF().equalsIgnoreCase("ok")) {
-            return this.load((InputStream)var7);
-         } else {
-            if(this.progressBar != null) {
-               this.progressBar.setText("Failed: " + var7.readUTF());
-            }
-
-            var7.close();
-            Thread.sleep(1000L);
-            return null;
-         }
-      } catch (Exception var5) {
-         var5.printStackTrace();
-         if(this.progressBar != null) {
-            this.progressBar.setText("Failed!");
-         }
-
-         try {
-            Thread.sleep(3000L);
-         } catch (InterruptedException var4) {
-            ;
-         }
-
-         return null;
-      }
-   }
-
-   public final Level load(InputStream var1) {
-      if(this.progressBar != null) {
-         this.progressBar.setTitle("Loading level");
-      }
-
-      if(this.progressBar != null) {
-         this.progressBar.setText("Reading..");
-      }
-
-      try {
-         DataInputStream var10;
-         if((var10 = new DataInputStream(new GZIPInputStream(var1))).readInt() != 656127880) {
-            return null;
-         } else {
-            byte var12;
-            if((var12 = var10.readByte()) > 2) {
-               return null;
-            } else if(var12 <= 1) {
-               String var14 = var10.readUTF();
-               String var15 = var10.readUTF();
-               long var3 = var10.readLong();
-               short var5 = var10.readShort();
-               short var6 = var10.readShort();
-               short var7 = var10.readShort();
-               byte[] var8 = new byte[var5 * var6 * var7];
-               var10.readFully(var8);
-               var10.close();
-               Level var11;
-               (var11 = new Level()).setData(var5, var7, var6, var8);
-               var11.name = var14;
-               var11.creator = var15;
-               var11.createTime = var3;
-               return var11;
-            } else {
-               Level var2;
-               LevelObjectInputStream var13;
-               (var2 = (Level)(var13 = new LevelObjectInputStream(var10)).readObject()).initTransient();
-               var13.close();
-               return var2;
-            }
-         }
-      } catch (Exception var9) {
-         var9.printStackTrace();
-         System.out.println("Failed to load level: " + var9.toString());
-         return null;
-      }
-   }
-
-   public static void save(Level var0, OutputStream var1) {
-      try {
-         DataOutputStream var3;
-         (var3 = new DataOutputStream(new GZIPOutputStream(var1))).writeInt(656127880);
-         var3.writeByte(2);
-         ObjectOutputStream var4;
-         (var4 = new ObjectOutputStream(var3)).writeObject(var0);
-         var4.close();
-      } catch (Exception var2) {
-         var2.printStackTrace();
-      }
-   }
-
-   public static byte[] decompress(InputStream var0) {
-      try {
-         DataInputStream var3;
-         byte[] var1 = new byte[(var3 = new DataInputStream(new GZIPInputStream(var0))).readInt()];
-         var3.readFully(var1);
-         var3.close();
-         return var1;
-      } catch (Exception var2) {
-         throw new RuntimeException(var2);
-      }
-   }
-}

src/teavm/java/com/mojang/minecraft/net/NetworkManager.java

@@ -21,7 +21,7 @@ public class NetworkManager
 
 		players = new HashMap<Byte, NetworkPlayer>();
 
-		new ServerConnectThread(this, server, username, key, minecraft).start();
+		new ServerConnect(this, server, username, key, minecraft).connect();
 	}
 
 	public ByteArrayOutputStream levelData;
@@ -53,7 +53,7 @@ public class NetworkManager
 
 	public boolean isConnected()
 	{
-		return netHandler != null && GL11.connectionOpen();
+		return netHandler != null && netHandler.channel.connectionOpen();
 	}
 
 	public List getPlayers()

src/teavm/java/com/mojang/minecraft/net/ServerConnect.java

@@ -4,9 +4,9 @@ import com.mojang.minecraft.Minecraft;
 import com.mojang.minecraft.gui.ErrorScreen;
 import com.mojang.net.NetworkHandler;
 
-public class ServerConnectThread extends Thread
+public class ServerConnect
 {
-	public ServerConnectThread(NetworkManager networkManager, String server, String username, String key, Minecraft minecraft) {
+	public ServerConnect(NetworkManager networkManager, String server, String username, String key, Minecraft minecraft) {
 		super();
 
 		netManager = networkManager;
@@ -19,8 +19,7 @@ public class ServerConnectThread extends Thread
 		this.minecraft = minecraft;
 	}
 
-	@Override
+	public void connect()
-	public void run()
 	{
 		try {
 			netManager.netHandler = new NetworkHandler(server);

src/teavm/java/com/mojang/net/NetworkHandler.java

@@ -6,6 +6,8 @@ import com.mojang.minecraft.gui.ErrorScreen;
 import com.mojang.minecraft.net.NetworkManager;
 import com.mojang.minecraft.net.PacketType;
 
+import net.PeytonPlayz585.websocket.WebSocketChannel;
+
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.Arrays;
@@ -20,6 +22,7 @@ public final class NetworkHandler {
    public NetworkManager netManager;
    private boolean unused = false;
    private byte[] stringBytes = new byte[64];
+   public WebSocketChannel channel;
 
 
    public NetworkHandler(String var1) {
@@ -43,18 +46,14 @@ public final class NetworkHandler {
 		   Minecraft.getMinecraft().setCurrentScreen(new ErrorScreen(":(", "Invalid URI protocol!"));
 	   }
 	   
-	   if(!GL11.startConnection(address)) {
+	   channel = new WebSocketChannel(address);
-		   if(!GL11.startConnection(address)) {
-			   Minecraft.getMinecraft().setCurrentScreen(new ErrorScreen(address, "Failed to connect to server!"));
-		   }
-	   }
    }
 
    public final void close() {
       try {
          if(this.out.position() > 0) {
             this.out.flip();
-            this.write(this.out);
+            this.channel.write(this.out);
             this.out.compact();
          }
       } catch (Exception var2) {
@@ -62,14 +61,14 @@ public final class NetworkHandler {
       }
 
       try {
-    	 GL11.endConnection();
+    	  channel.endConnection();
       } catch (Exception var1) {
          ;
       }
    }
 
    public final void send(PacketType var1, Object ... var2) {
-      if(GL11.connectionOpen()) {
+      if(channel.connectionOpen()) {
          this.out.put(var1.opcode);
 
          for(int var3 = 0; var3 < var2.length; ++var3) {
@@ -77,7 +76,7 @@ public final class NetworkHandler {
             Object var4 = var2[var3];
             Class<?> var5 = var10001;
             NetworkHandler var6 = this;
-            if(GL11.connectionOpen()) {
+            if(channel.connectionOpen()) {
                try {
                   if(var5 == Long.TYPE) {
                      var6.out.putLong(((Long)var4).longValue());
@@ -129,7 +128,7 @@ public final class NetworkHandler {
    }
 
    public Object readObject(Class var1) {
-      if(!GL11.connectionOpen()) {
+      if(!channel.connectionOpen()) {
          return null;
       } else {
          try {
@@ -162,49 +161,6 @@ public final class NetworkHandler {
       }
    }
    
-   public void read(ByteBuffer buf) {
-       int bytesRead = 0;
-       while (bytesRead < buf.capacity()) {
-           if (!GL11.receivedBuffers.isEmpty()) {
-               ByteBuffer receivedBuffer = GL11.receivedBuffers.peek();
-               int remainingBytes = buf.capacity() - bytesRead;
-               int bytesToRead = Math.min(receivedBuffer.remaining(), remainingBytes);
-               receivedBuffer.get(buf.array(), bytesRead, bytesToRead);
-               bytesRead += bytesToRead;
-
-               if (receivedBuffer.remaining() == 0) {
-                   GL11.receivedBuffers.poll();
-               }
-           } else {
-               break;
-           }
-       }
-   }
-   
-    private static ByteBuffer writeBuffer;
-
-	public void write(ByteBuffer buf) {
-		if (writeBuffer == null) {
-			writeBuffer = ByteBuffer.allocate(buf.capacity());
-		}
-
-		int bytesToWrite = Math.min(buf.remaining(), writeBuffer.remaining());
-		writeBuffer.put(buf.array(), buf.position(), bytesToWrite);
-		buf.position(buf.position() + bytesToWrite);
-
-		if (writeBuffer.remaining() == 0 || buf.remaining() == 0) {
-			writeBuffer.flip();
-			byte[] data = new byte[writeBuffer.remaining()];
-			writeBuffer.get(data);
-			GL11.writePacket(data);
-			writeBuffer.clear();
-		}
-
-		if (buf.remaining() > 0) {
-			write(buf);
-		}
-	}
-   
    @JSBody(params = { }, script = "return window.location.href;")
    private static native String getLocationString();
 	

src/teavm/java/net/PeytonPlayz585/level/LevelUtils.java

@@ -109,7 +109,7 @@ public class LevelUtils {
 	
 	public void save() {
 		
-		if(Minecraft.getMinecraft().networkManager != null) {
+		if(Minecraft.getMinecraft().server != null || Minecraft.getMinecraft().networkManager != null || Minecraft.getMinecraft().level == null) {
 			return;
 		}
 		

src/teavm/java/net/PeytonPlayz585/websocket/WebSocketChannel.java

@@ -0,0 +1,102 @@
+package net.PeytonPlayz585.websocket;
+
+import org.teavm.jso.JSBody;
+import org.teavm.jso.ajax.*;
+import org.teavm.jso.dom.events.MessageEvent;
+import org.teavm.jso.typedarrays.ArrayBuffer;
+import org.teavm.jso.typedarrays.DataView;
+import org.teavm.jso.typedarrays.Int8Array;
+import org.teavm.jso.websocket.WebSocket;
+
+import java.nio.ByteBuffer;
+import java.nio.charset.StandardCharsets;
+import java.util.LinkedList;
+import java.util.Queue;
+
+public class WebSocketChannel {
+    private final WebSocket socket;
+    private final Queue<MessageEvent> messageQueue;
+    private final ByteBuffer readBuffer;
+    private boolean reading;
+    private boolean isConnected = false;
+
+    public WebSocketChannel(String url) {
+        socket = WebSocket.create(url);
+        messageQueue = new LinkedList<>();
+        readBuffer = ByteBuffer.allocate(4096);
+        reading = false;
+
+        socket.onMessage(event -> {
+            isConnected = true;
+            messageQueue.offer(event);
+        });
+
+        socket.onOpen(event -> {
+            isConnected = true;
+            messageQueue.clear();
+        });
+
+        socket.onClose((event) -> {
+            isConnected = false;
+            messageQueue.clear();
+        });
+
+        socket.onError((event) -> {
+            isConnected = false;
+            socket.close();
+        });
+    }
+
+    public void read(ByteBuffer buffer) {
+        if (reading || messageQueue.isEmpty()) {
+            return;
+        }
+        MessageEvent event = messageQueue.peek();
+        readData(buffer, event);
+        if (!event.isBubbles() && !event.isCancelable()) {
+            messageQueue.poll();
+        }
+    }
+
+    private void readData(ByteBuffer buffer, MessageEvent event) {
+        DataView data = DataView.create(event.getDataAsArray());
+        int length = Math.min(buffer.remaining(), data.getByteLength());
+        for (int i = 0; i < length; i++) {
+            buffer.put((byte) data.getInt8(i));
+        }
+        if (reading) {
+            return;
+        }
+        if (buffer.hasRemaining()) {
+            readBuffer.clear();
+            readBuffer.put(buffer);
+            reading = true;
+        } else {
+            buffer.flip();
+        }
+    }
+    
+    @JSBody(params = { "sock", "buffer" }, script = "sock.send(buffer);")
+	private static native void nativeBinarySend(WebSocket sock, ArrayBuffer buffer);
+
+    public void write(ByteBuffer buffer) {
+        if (socket.getReadyState() == 3) {
+            return;
+        }
+        byte[] data = new byte[buffer.remaining()];
+        buffer.get(data);
+        Int8Array array = Int8Array.create(data.length);
+        for (int i = 0; i < data.length; i++) {
+            array.set(i, data[i]);
+        }
+        nativeBinarySend(socket, array.getBuffer());
+    }
+
+    public boolean connectionOpen() {
+        return isConnected && socket.getReadyState() != 3;
+    }
+
+    public void endConnection() {
+        socket.close();
+    }
+}

src/teavm/java/net/lax1dude/eaglercraft/adapter/EaglerAdapterImpl2.java

@@ -1201,61 +1201,6 @@ public class EaglerAdapterImpl2 {
 	@JSBody(params = { "name", "cvs" }, script = "var a=document.createElement(\"a\");a.href=cvs.toDataURL(\"image/png\");a.download=name;a.click();")
 	private static native void saveScreenshot(String name, HTMLCanvasElement cvs);
 	
-	private static WebSocket webSocket;
-    private static boolean isConnected = false;
-    public static java.util.Queue<ByteBuffer> receivedBuffers = new java.util.ArrayDeque<ByteBuffer>();
-	
-	public static boolean startConnection(String serverUrl) {
-        webSocket = WebSocket.create(serverUrl);
-
-        webSocket.onOpen(new EventListener<MessageEvent>() {
-            @Override
-            public void handleEvent(MessageEvent evt) {
-                isConnected = true;
-            }
-        });
-        
-        webSocket.onMessage(new EventListener<MessageEvent>() {
-			@Override
-			public void handleEvent(MessageEvent evt) {
-				Uint8Array a = Uint8Array.create(evt.getDataAsArray());
-				byte[] b = new byte[a.getByteLength()];
-				for(int i = 0; i < b.length; ++i) {
-					b[i] = (byte) (a.get(i) & 0xFF);
-				}
-				ByteBuffer buffer = ByteBuffer.wrap(b);
-		        receivedBuffers.add(buffer);
-			}
-		});
-
-        webSocket.onClose(new EventListener<CloseEvent>() {
-            @Override
-            public void handleEvent(CloseEvent event) {
-                isConnected = false;
-            }
-        });
-
-        return isConnected;
-    }
-	
-	public static void endConnection() {
-		webSocket.close();
-	}
-	
-	public static final boolean connectionOpen() {
-		return isConnected;
-	}
-	
-	@JSBody(params = { "sock", "buffer" }, script = "sock.send(buffer);")
-	private static native void nativeBinarySend(WebSocket sock, ArrayBuffer buffer);
-	public static final void writePacket(byte[] packet) {
-		if(webSocket != null && isConnected) {
-			Uint8Array arr = Uint8Array.create(packet.length);
-			arr.set(packet);
-			nativeBinarySend(webSocket, arr.getBuffer());
-		}
-	}
-	
 	public static final byte[] loadLocalStorage(String key) {
 		String s = win.getLocalStorage().getItem("_eaglercraft_beta."+key);
 		if(s != null) {