Made game config more customizable

src/main/java/net/minecraft/client/Minecraft.java

@@ -16,6 +16,7 @@ import net.minecraft.src.GLAllocation;
 import net.minecraft.src.GameSettings;
 import net.minecraft.src.GuiChat;
 import net.minecraft.src.GuiConflictWarning;
+import net.minecraft.src.GuiConnecting;
 import net.minecraft.src.GuiGameOver;
 import net.minecraft.src.GuiIngame;
 import net.minecraft.src.GuiIngameMenu;
@@ -154,7 +155,11 @@ public class Minecraft implements Runnable {
 
 		this.checkGLError("Post startup");
 		this.ingameGUI = new GuiIngame(this);
-		this.displayGuiScreen(new GuiMainMenu());
+		if(GL11.forcedUser != null & GL11.forcedServer != null & GL11.joinServerOnLaunch) {
+			this.displayGuiScreen(new GuiConnecting(this, GL11.forcedServer));
+		} else {
+			this.displayGuiScreen(new GuiMainMenu());
+		}
 	}
 
 	private void loadScreen() {
@@ -190,7 +195,7 @@ public class Minecraft implements Runnable {
 		GL11.glDisable(2896 /* GL_LIGHTING */);
 		GL11.glDisable(2912 /* GL_FOG */);
 		GL11.glEnable(3008 /* GL_ALPHA_TEST */);
-		GL11.glAlphaFunc(516, 0.1F);
+		GL11.glAlphaFunc(516, 1.0F);
 		GL11.glFlush();
 		GL11.updateDisplay();
 		GL11.optimize();
@@ -444,7 +449,6 @@ public class Minecraft implements Runnable {
 	}
 
 	public void func_6259_e() {
-		awaitMousePointer = true;
 		if(GL11.isFocused()) {
 			if(!this.field_6289_L) {
 				this.field_6289_L = true;
@@ -456,7 +460,6 @@ public class Minecraft implements Runnable {
 	}
 
 	public void func_6273_f() {
-		awaitMousePointer = false;
 		if(this.field_6289_L) {
 			if(this.thePlayer != null) {
 				this.thePlayer.func_458_k();
@@ -590,39 +593,7 @@ public class Minecraft implements Runnable {
 
 	}
 
-	public boolean pauseFlag = false;
-	public boolean justLeftWorld = true;
-	public boolean awaitMousePointer = false;
-	public int prevPauseTicks = 0;
-
 	public void runTick() {
-		if(GL11.isWebGL) {
-			if((this.theWorld == null || justLeftWorld) && (GL11.isPointerLocked() || GL11.isPointerLocked2())) {
-				mouseHelper.func_773_b();
-			}
-		
-			if(this.currentScreen == null && this.theWorld != null && pauseFlag && (!GL11.isPointerLocked() || !GL11.isPointerLocked2()) && awaitMousePointer) {
-				mouseHelper.func_774_a();
-			}
-		
-			if(GL11.isPointerLocked2() && this.currentScreen == null) {
-				if(!pauseFlag) {
-					if(prevPauseTicks == 0) {
-						prevPauseTicks = this.ticksRan;
-					}
-				
-					if(this.ticksRan >= prevPauseTicks + 1 && prevPauseTicks != 0) {
-						pauseFlag = true;
-						prevPauseTicks = 0;
-					}
-				}
-			}
-		
-			if(currentScreen == null && !Mouse.isPointerLocked2() && pauseFlag) {
-				func_6252_g();
-			}
-		}
-		
 		this.ingameGUI.func_555_a();
 		this.field_9243_r.func_910_a(1.0F);
 		if(this.thePlayer != null) {

src/main/java/net/minecraft/src/GuiChat.java

@@ -16,8 +16,6 @@ public class GuiChat extends GuiScreen {
 	}
 
 	public void updateScreen() {
-		Minecraft.getMinecraft().pauseFlag = false;
-		Minecraft.getMinecraft().prevPauseTicks = 0;
 		++this.updateCounter;
 	}
 

src/main/java/net/minecraft/src/GuiContainer.java

@@ -14,8 +14,6 @@ public abstract class GuiContainer extends GuiScreen {
 	protected List inventorySlots = new ArrayList();
 
 	public void drawScreen(int var1, int var2, float var3) {
-		Minecraft.getMinecraft().pauseFlag = false;
-		Minecraft.getMinecraft().prevPauseTicks = 0;
 		this.drawDefaultBackground();
 		int var4 = (this.width - this.xSize) / 2;
 		int var5 = (this.height - this.ySize) / 2;

src/main/java/net/minecraft/src/GuiEditSign.java

@@ -15,8 +15,6 @@ public class GuiEditSign extends GuiScreen {
 	}
 
 	public void initGui() {
-		Minecraft.getMinecraft().pauseFlag = false;
-		Minecraft.getMinecraft().prevPauseTicks = 0;
 		this.controlList.clear();
 		Keyboard.enableRepeatEvents(true);
 		this.controlList.add(new GuiButton(0, this.width / 2 - 100, this.height / 4 + 120, "Done"));
@@ -27,8 +25,6 @@ public class GuiEditSign extends GuiScreen {
 	}
 
 	public void updateScreen() {
-		Minecraft.getMinecraft().pauseFlag = false;
-		Minecraft.getMinecraft().prevPauseTicks = 0;
 		++this.updateCounter;
 	}
 

src/main/java/net/minecraft/src/GuiIngameMenu.java

@@ -7,8 +7,6 @@ public class GuiIngameMenu extends GuiScreen {
 	private int updateCounter = 0;
 
 	public void initGui() {
-		Minecraft.getMinecraft().prevPauseTicks = 0;
-		Minecraft.getMinecraft().pauseFlag = false;
 		this.updateCounter2 = 0;
 		this.controlList.clear();
 		this.controlList.add(new GuiButton(1, this.width / 2 - 100, this.height / 4 + 48, "Save and quit to title"));
@@ -26,7 +24,6 @@ public class GuiIngameMenu extends GuiScreen {
 		}
 
 		if(var1.id == 1) {
-			Minecraft.getMinecraft().justLeftWorld = true;
 			if(this.mc.isMultiplayerWorld()) {
 				this.mc.theWorld.sendQuittingDisconnectingPacket();
 			}

src/main/java/net/minecraft/src/GuiMainMenu.java

@@ -59,7 +59,6 @@ public class GuiMainMenu extends GuiScreen {
 	}
 
 	public void initGui() {
-		Minecraft.getMinecraft().justLeftWorld = false;
 		Calendar var1 = Calendar.getInstance();
 		var1.setTime(new Date());
 		if(var1.get(2) + 1 == 11 && var1.get(5) == 9) {

src/teavm/java/net/lax1dude/eaglercraft/Client.java

@@ -27,13 +27,9 @@ public class Client {
 	public static Minecraft instance = null;
     public static void main(String[] args) {
     	registerErrorHandler();
-    	String[] e = getOpts();
     	try {
-	    	try {
+	    	JSONObject e = new JSONObject(getOpts());
-	    		EaglerAdapterImpl2.initializeContext(rootElement = Window.current().getDocument().getElementById(e[0]), e[1]);
+	    	EaglerAdapterImpl2.initializeContext(rootElement = Window.current().getDocument().getElementById(e.getString("gameContainer")), e.getString("assetsLocation"), e);
-	    	}catch(AbortedLaunchException ex) {
-	    		return;
-	    	}
     	}catch(Throwable ex2) {
     		StringWriter s = new StringWriter();
     		ex2.printStackTrace(new PrintWriter(s));
@@ -55,8 +51,8 @@ public class Client {
     	instance.run();
     }
 
-	@JSBody(params = { }, script = "return window.classicConfig;")
+	@JSBody(params = { }, script = "return JSON.stringify(window.config);")
-	public static native String[] getOpts();
+	public static native String getOpts();
 
 	@JSBody(params = { }, script = "window.minecraftError = null; window.onerror = function(message, file, line, column, errorObj) { if(errorObj) { window.minecraftError = errorObj; window.minecraftErrorL = \"\"+line+\":\"+column; javaMethods.get(\"net.lax1dude.eaglercraft.Client.handleNativeError()V\").invoke(); } else { alert(\"a native browser exception was thrown but your browser does not support fith argument in onerror\"); } };")
 	public static native void registerErrorHandler();

src/teavm/java/net/lax1dude/eaglercraft/JSONException.java

@@ -0,0 +1,69 @@
+package net.lax1dude.eaglercraft;
+
+/*
+Copyright (c) 2002 JSON.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+ */
+
+/**
+ * The JSONException is thrown by the JSON.org classes when things are amiss.
+ *
+ * @author JSON.org
+ * @version 2015-12-09
+ */
+public class JSONException extends RuntimeException {
+    /** Serialization ID */
+    private static final long serialVersionUID = 0;
+
+    /**
+     * Constructs a JSONException with an explanatory message.
+     *
+     * @param message
+     *            Detail about the reason for the exception.
+     */
+    public JSONException(final String message) {
+        super(message);
+    }
+
+    /**
+     * Constructs a JSONException with an explanatory message and cause.
+     * 
+     * @param message
+     *            Detail about the reason for the exception.
+     * @param cause
+     *            The cause.
+     */
+    public JSONException(final String message, final Throwable cause) {
+        super(message, cause);
+    }
+
+    /**
+     * Constructs a new JSONException with the specified cause.
+     * 
+     * @param cause
+     *            The cause.
+     */
+    public JSONException(final Throwable cause) {
+        super(cause.getMessage(), cause);
+    }
+
+}

src/teavm/java/net/lax1dude/eaglercraft/JSONPointer.java

@@ -0,0 +1,295 @@
+package net.lax1dude.eaglercraft;
+
+import static java.lang.String.format;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
+import java.net.URLEncoder;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/*
+Copyright (c) 2002 JSON.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+/**
+ * A JSON Pointer is a simple query language defined for JSON documents by
+ * <a href="https://tools.ietf.org/html/rfc6901">RFC 6901</a>.
+ * 
+ * In a nutshell, JSONPointer allows the user to navigate into a JSON document
+ * using strings, and retrieve targeted objects, like a simple form of XPATH.
+ * Path segments are separated by the '/' char, which signifies the root of
+ * the document when it appears as the first char of the string. Array 
+ * elements are navigated using ordinals, counting from 0. JSONPointer strings
+ * may be extended to any arbitrary number of segments. If the navigation
+ * is successful, the matched item is returned. A matched item may be a
+ * JSONObject, a JSONArray, or a JSON value. If the JSONPointer string building 
+ * fails, an appropriate exception is thrown. If the navigation fails to find
+ * a match, a JSONPointerException is thrown. 
+ * 
+ * @author JSON.org
+ * @version 2016-05-14
+ */
+public class JSONPointer {
+
+    // used for URL encoding and decoding
+    private static final String ENCODING = "utf-8";
+
+    /**
+     * This class allows the user to build a JSONPointer in steps, using
+     * exactly one segment in each step.
+     */
+    public static class Builder {
+
+        // Segments for the eventual JSONPointer string
+        private final List<String> refTokens = new ArrayList<String>();
+
+        /**
+         * Creates a {@code JSONPointer} instance using the tokens previously set using the
+         * {@link #append(String)} method calls.
+         * @return a JSONPointer object
+         */
+        public JSONPointer build() {
+            return new JSONPointer(this.refTokens);
+        }
+
+        /**
+         * Adds an arbitrary token to the list of reference tokens. It can be any non-null value.
+         * 
+         * Unlike in the case of JSON string or URI fragment representation of JSON pointers, the
+         * argument of this method MUST NOT be escaped. If you want to query the property called
+         * {@code "a~b"} then you should simply pass the {@code "a~b"} string as-is, there is no
+         * need to escape it as {@code "a~0b"}.
+         * 
+         * @param token the new token to be appended to the list
+         * @return {@code this}
+         * @throws NullPointerException if {@code token} is null
+         */
+        public Builder append(String token) {
+            if (token == null) {
+                throw new NullPointerException("token cannot be null");
+            }
+            this.refTokens.add(token);
+            return this;
+        }
+
+        /**
+         * Adds an integer to the reference token list. Although not necessarily, mostly this token will
+         * denote an array index. 
+         * 
+         * @param arrayIndex the array index to be added to the token list
+         * @return {@code this}
+         */
+        public Builder append(int arrayIndex) {
+            this.refTokens.add(String.valueOf(arrayIndex));
+            return this;
+        }
+    }
+
+    /**
+     * Static factory method for {@link Builder}. Example usage:
+     * 
+     * <pre><code>
+     * JSONPointer pointer = JSONPointer.builder()
+     *       .append("obj")
+     *       .append("other~key").append("another/key")
+     *       .append("\"")
+     *       .append(0)
+     *       .build();
+     * </code></pre>
+     * 
+     *  @return a builder instance which can be used to construct a {@code JSONPointer} instance by chained
+     *  {@link Builder#append(String)} calls.
+     */
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    // Segments for the JSONPointer string
+    private final List<String> refTokens;
+
+    /**
+     * Pre-parses and initializes a new {@code JSONPointer} instance. If you want to
+     * evaluate the same JSON Pointer on different JSON documents then it is recommended
+     * to keep the {@code JSONPointer} instances due to performance considerations.
+     * 
+     * @param pointer the JSON String or URI Fragment representation of the JSON pointer.
+     * @throws IllegalArgumentException if {@code pointer} is not a valid JSON pointer
+     */
+    public JSONPointer(final String pointer) {
+        if (pointer == null) {
+            throw new NullPointerException("pointer cannot be null");
+        }
+        if (pointer.isEmpty() || pointer.equals("#")) {
+            this.refTokens = Collections.emptyList();
+            return;
+        }
+        String refs;
+        if (pointer.startsWith("#/")) {
+            refs = pointer.substring(2);
+            try {
+                refs = URLDecoder.decode(refs, ENCODING);
+            } catch (UnsupportedEncodingException e) {
+                throw new RuntimeException(e);
+            }
+        } else if (pointer.startsWith("/")) {
+            refs = pointer.substring(1);
+        } else {
+            throw new IllegalArgumentException("a JSON pointer should start with '/' or '#/'");
+        }
+        this.refTokens = new ArrayList<String>();
+        int slashIdx = -1;
+        int prevSlashIdx = 0;
+        do {
+            prevSlashIdx = slashIdx + 1;
+            slashIdx = refs.indexOf('/', prevSlashIdx);
+            if(prevSlashIdx == slashIdx || prevSlashIdx == refs.length()) {
+                // found 2 slashes in a row ( obj//next )
+                // or single slash at the end of a string ( obj/test/ )
+                this.refTokens.add("");
+            } else if (slashIdx >= 0) {
+                final String token = refs.substring(prevSlashIdx, slashIdx);
+                this.refTokens.add(unescape(token));
+            } else {
+                // last item after separator, or no separator at all.
+                final String token = refs.substring(prevSlashIdx);
+                this.refTokens.add(unescape(token));
+            }
+        } while (slashIdx >= 0);
+        // using split does not take into account consecutive separators or "ending nulls"
+        //for (String token : refs.split("/")) {
+        //    this.refTokens.add(unescape(token));
+        //}
+    }
+
+    public JSONPointer(List<String> refTokens) {
+        this.refTokens = new ArrayList<String>(refTokens);
+    }
+
+    /**
+     * @see <a href="https://tools.ietf.org/html/rfc6901#section-3">rfc6901 section 3</a>
+     */
+    private static String unescape(String token) {
+        return token.replace("~1", "/").replace("~0", "~");
+    }
+
+    /**
+     * Evaluates this JSON Pointer on the given {@code document}. The {@code document}
+     * is usually a {@link JSONObject} or a {@link JSONArray} instance, but the empty
+     * JSON Pointer ({@code ""}) can be evaluated on any JSON values and in such case the
+     * returned value will be {@code document} itself. 
+     * 
+     * @param document the JSON document which should be the subject of querying.
+     * @return the result of the evaluation
+     * @throws JSONPointerException if an error occurs during evaluation
+     */
+    public Object queryFrom(Object document) throws JSONPointerException {
+        if (this.refTokens.isEmpty()) {
+            return document;
+        }
+        Object current = document;
+        for (String token : this.refTokens) {
+            if (current instanceof JSONObject) {
+                current = ((JSONObject) current).opt(unescape(token));
+            } else if (current instanceof JSONArray) {
+                current = readByIndexToken(current, token);
+            } else {
+                throw new JSONPointerException(format(
+                        "value [%s] is not an array or object therefore its key %s cannot be resolved", current,
+                        token));
+            }
+        }
+        return current;
+    }
+
+    /**
+     * Matches a JSONArray element by ordinal position
+     * @param current the JSONArray to be evaluated
+     * @param indexToken the array index in string form
+     * @return the matched object. If no matching item is found a
+     * @throws JSONPointerException is thrown if the index is out of bounds
+     */
+    private static Object readByIndexToken(Object current, String indexToken) throws JSONPointerException {
+        try {
+            int index = Integer.parseInt(indexToken);
+            JSONArray currentArr = (JSONArray) current;
+            if (index >= currentArr.length()) {
+                throw new JSONPointerException(format("index %s is out of bounds - the array has %d elements", indexToken,
+                        Integer.valueOf(currentArr.length())));
+            }
+            try {
+				return currentArr.get(index);
+			} catch (JSONException e) {
+				throw new JSONPointerException("Error reading value at index position " + index, e);
+			}
+        } catch (NumberFormatException e) {
+            throw new JSONPointerException(format("%s is not an array index", indexToken), e);
+        }
+    }
+
+    /**
+     * Returns a string representing the JSONPointer path value using string
+     * representation
+     */
+    @Override
+    public String toString() {
+        StringBuilder rval = new StringBuilder("");
+        for (String token: this.refTokens) {
+            rval.append('/').append(escape(token));
+        }
+        return rval.toString();
+    }
+
+    /**
+     * Escapes path segment values to an unambiguous form.
+     * The escape char to be inserted is '~'. The chars to be escaped 
+     * are ~, which maps to ~0, and /, which maps to ~1.
+     * @param token the JSONPointer segment value to be escaped
+     * @return the escaped value for the token
+     * 
+     * @see <a href="https://tools.ietf.org/html/rfc6901#section-3">rfc6901 section 3</a>
+     */
+    private static String escape(String token) {
+        return token.replace("~", "~0")
+                .replace("/", "~1");
+    }
+
+    /**
+     * Returns a string representing the JSONPointer path value using URI
+     * fragment identifier representation
+     * @return a uri fragment string
+     */
+    public String toURIFragment() {
+        try {
+            StringBuilder rval = new StringBuilder("#");
+            for (String token : this.refTokens) {
+                rval.append('/').append(URLEncoder.encode(token, ENCODING));
+            }
+            return rval.toString();
+        } catch (UnsupportedEncodingException e) {
+            throw new RuntimeException(e);
+        }
+    }
+    
+}

src/teavm/java/net/lax1dude/eaglercraft/JSONPointerException.java

@@ -0,0 +1,45 @@
+package net.lax1dude.eaglercraft;
+
+/*
+Copyright (c) 2002 JSON.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+/**
+ * The JSONPointerException is thrown by {@link JSONPointer} if an error occurs
+ * during evaluating a pointer.
+ * 
+ * @author JSON.org
+ * @version 2016-05-13
+ */
+public class JSONPointerException extends JSONException {
+    private static final long serialVersionUID = 8872944667561856751L;
+
+    public JSONPointerException(String message) {
+        super(message);
+    }
+
+    public JSONPointerException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+}

src/teavm/java/net/lax1dude/eaglercraft/JSONPropertyIgnore.java

@@ -0,0 +1,43 @@
+package net.lax1dude.eaglercraft;
+
+/*
+Copyright (c) 2018 JSON.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+@Documented
+@Retention(RUNTIME)
+@Target({METHOD})
+/**
+ * Use this annotation on a getter method to override the Bean name
+ * parser for Bean -> JSONObject mapping. If this annotation is
+ * present at any level in the class hierarchy, then the method will
+ * not be serialized from the bean into the JSONObject.
+ */
+public @interface JSONPropertyIgnore { }

src/teavm/java/net/lax1dude/eaglercraft/JSONPropertyName.java

@@ -0,0 +1,47 @@
+package net.lax1dude.eaglercraft;
+
+/*
+Copyright (c) 2018 JSON.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+@Documented
+@Retention(RUNTIME)
+@Target({METHOD})
+/**
+ * Use this annotation on a getter method to override the Bean name
+ * parser for Bean -&gt; JSONObject mapping. A value set to empty string <code>""</code>
+ * will have the Bean parser fall back to the default field name processing.
+ */
+public @interface JSONPropertyName {
+    /**
+     * @return The name of the property as to be used in the JSON Object.
+     */
+    String value();
+}

src/teavm/java/net/lax1dude/eaglercraft/JSONString.java

@@ -0,0 +1,43 @@
+package net.lax1dude.eaglercraft;
+
+/*
+Copyright (c) 2002 JSON.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+ */
+
+/**
+ * The <code>JSONString</code> interface allows a <code>toJSONString()</code>
+ * method so that a class can change the behavior of
+ * <code>JSONObject.toString()</code>, <code>JSONArray.toString()</code>,
+ * and <code>JSONWriter.value(</code>Object<code>)</code>. The
+ * <code>toJSONString</code> method will be used instead of the default behavior
+ * of using the Object's <code>toString()</code> method and quoting the result.
+ */
+public interface JSONString {
+    /**
+     * The <code>toJSONString</code> method allows a class to produce its own JSON
+     * serialization.
+     *
+     * @return A strictly syntactically correct JSON text.
+     */
+    public String toJSONString();
+}

src/teavm/java/net/lax1dude/eaglercraft/JSONTokener.java

@@ -0,0 +1,545 @@
+package net.lax1dude.eaglercraft;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.io.StringReader;
+
+/*
+Copyright (c) 2002 JSON.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+ */
+
+/**
+ * A JSONTokener takes a source string and extracts characters and tokens from
+ * it. It is used by the JSONObject and JSONArray constructors to parse
+ * JSON source strings.
+ * @author JSON.org
+ * @version 2014-05-03
+ */
+public class JSONTokener {
+    /** current read character position on the current line. */
+    private long character;
+    /** flag to indicate if the end of the input has been found. */
+    private boolean eof;
+    /** current read index of the input. */
+    private long index;
+    /** current line of the input. */
+    private long line;
+    /** previous character read from the input. */
+    private char previous;
+    /** Reader for the input. */
+    private final Reader reader;
+    /** flag to indicate that a previous character was requested. */
+    private boolean usePrevious;
+    /** the number of characters read in the previous line. */
+    private long characterPreviousLine;
+
+
+    /**
+     * Construct a JSONTokener from a Reader. The caller must close the Reader.
+     *
+     * @param reader     A reader.
+     */
+    public JSONTokener(Reader reader) {
+        this.reader = reader.markSupported()
+                ? reader
+                        : new BufferedReader(reader);
+        this.eof = false;
+        this.usePrevious = false;
+        this.previous = 0;
+        this.index = 0;
+        this.character = 1;
+        this.characterPreviousLine = 0;
+        this.line = 1;
+    }
+
+
+    /**
+     * Construct a JSONTokener from an InputStream. The caller must close the input stream.
+     * @param inputStream The source.
+     */
+    public JSONTokener(InputStream inputStream) {
+        this(new InputStreamReader(inputStream));
+    }
+
+
+    /**
+     * Construct a JSONTokener from a string.
+     *
+     * @param s     A source string.
+     */
+    public JSONTokener(String s) {
+        this(new StringReader(s));
+    }
+
+
+    /**
+     * Back up one character. This provides a sort of lookahead capability,
+     * so that you can test for a digit or letter before attempting to parse
+     * the next number or identifier.
+     * @throws JSONException Thrown if trying to step back more than 1 step
+     *  or if already at the start of the string
+     */
+    public void back() throws JSONException {
+        if (this.usePrevious || this.index <= 0) {
+            throw new JSONException("Stepping back two steps is not supported");
+        }
+        this.decrementIndexes();
+        this.usePrevious = true;
+        this.eof = false;
+    }
+
+    /**
+     * Decrements the indexes for the {@link #back()} method based on the previous character read.
+     */
+    private void decrementIndexes() {
+        this.index--;
+        if(this.previous=='\r' || this.previous == '\n') {
+            this.line--;
+            this.character=this.characterPreviousLine ;
+        } else if(this.character > 0){
+            this.character--;
+        }
+    }
+
+    /**
+     * Get the hex value of a character (base16).
+     * @param c A character between '0' and '9' or between 'A' and 'F' or
+     * between 'a' and 'f'.
+     * @return  An int between 0 and 15, or -1 if c was not a hex digit.
+     */
+    public static int dehexchar(char c) {
+        if (c >= '0' && c <= '9') {
+            return c - '0';
+        }
+        if (c >= 'A' && c <= 'F') {
+            return c - ('A' - 10);
+        }
+        if (c >= 'a' && c <= 'f') {
+            return c - ('a' - 10);
+        }
+        return -1;
+    }
+
+    /**
+     * Checks if the end of the input has been reached.
+     *  
+     * @return true if at the end of the file and we didn't step back
+     */
+    public boolean end() {
+        return this.eof && !this.usePrevious;
+    }
+
+
+    /**
+     * Determine if the source string still contains characters that next()
+     * can consume.
+     * @return true if not yet at the end of the source.
+     * @throws JSONException thrown if there is an error stepping forward
+     *  or backward while checking for more data.
+     */
+    public boolean more() throws JSONException {
+        if(this.usePrevious) {
+            return true;
+        }
+        try {
+            this.reader.mark(1);
+        } catch (IOException e) {
+            throw new JSONException("Unable to preserve stream position", e);
+        }
+        try {
+            // -1 is EOF, but next() can not consume the null character '\0'
+            if(this.reader.read() <= 0) {
+                this.eof = true;
+                return false;
+            }
+            this.reader.reset();
+        } catch (IOException e) {
+            throw new JSONException("Unable to read the next character from the stream", e);
+        }
+        return true;
+    }
+
+
+    /**
+     * Get the next character in the source string.
+     *
+     * @return The next character, or 0 if past the end of the source string.
+     * @throws JSONException Thrown if there is an error reading the source string.
+     */
+    public char next() throws JSONException {
+        int c;
+        if (this.usePrevious) {
+            this.usePrevious = false;
+            c = this.previous;
+        } else {
+            try {
+                c = this.reader.read();
+            } catch (IOException exception) {
+                throw new JSONException(exception);
+            }
+        }
+        if (c <= 0) { // End of stream
+            this.eof = true;
+            return 0;
+        }
+        this.incrementIndexes(c);
+        this.previous = (char) c;
+        return this.previous;
+    }
+    
+    /**
+     * Get the last character read from the input or '\0' if nothing has been read yet.
+     * @return the last character read from the input.
+     */
+    protected char getPrevious() { return this.previous;}
+
+    /**
+     * Increments the internal indexes according to the previous character
+     * read and the character passed as the current character.
+     * @param c the current character read.
+     */
+    private void incrementIndexes(int c) {
+        if(c > 0) {
+            this.index++;
+            if(c=='\r') {
+                this.line++;
+                this.characterPreviousLine = this.character;
+                this.character=0;
+            }else if (c=='\n') {
+                if(this.previous != '\r') {
+                    this.line++;
+                    this.characterPreviousLine = this.character;
+                }
+                this.character=0;
+            } else {
+                this.character++;
+            }
+        }
+    }
+
+    /**
+     * Consume the next character, and check that it matches a specified
+     * character.
+     * @param c The character to match.
+     * @return The character.
+     * @throws JSONException if the character does not match.
+     */
+    public char next(char c) throws JSONException {
+        char n = this.next();
+        if (n != c) {
+            if(n > 0) {
+                throw this.syntaxError("Expected '" + c + "' and instead saw '" +
+                        n + "'");
+            }
+            throw this.syntaxError("Expected '" + c + "' and instead saw ''");
+        }
+        return n;
+    }
+
+
+    /**
+     * Get the next n characters.
+     *
+     * @param n     The number of characters to take.
+     * @return      A string of n characters.
+     * @throws JSONException
+     *   Substring bounds error if there are not
+     *   n characters remaining in the source string.
+     */
+    public String next(int n) throws JSONException {
+        if (n == 0) {
+            return "";
+        }
+
+        char[] chars = new char[n];
+        int pos = 0;
+
+        while (pos < n) {
+            chars[pos] = this.next();
+            if (this.end()) {
+                throw this.syntaxError("Substring bounds error");
+            }
+            pos += 1;
+        }
+        return new String(chars);
+    }
+
+
+    /**
+     * Get the next char in the string, skipping whitespace.
+     * @throws JSONException Thrown if there is an error reading the source string.
+     * @return  A character, or 0 if there are no more characters.
+     */
+    public char nextClean() throws JSONException {
+        for (;;) {
+            char c = this.next();
+            if (c == 0 || c > ' ') {
+                return c;
+            }
+        }
+    }
+
+
+    /**
+     * Return the characters up to the next close quote character.
+     * Backslash processing is done. The formal JSON format does not
+     * allow strings in single quotes, but an implementation is allowed to
+     * accept them.
+     * @param quote The quoting character, either
+     *      <code>"</code>&nbsp;<small>(double quote)</small> or
+     *      <code>'</code>&nbsp;<small>(single quote)</small>.
+     * @return      A String.
+     * @throws JSONException Unterminated string.
+     */
+    public String nextString(char quote) throws JSONException {
+        char c;
+        StringBuilder sb = new StringBuilder();
+        for (;;) {
+            c = this.next();
+            switch (c) {
+            case 0:
+            case '\n':
+            case '\r':
+                throw this.syntaxError("Unterminated string");
+            case '\\':
+                c = this.next();
+                switch (c) {
+                case 'b':
+                    sb.append('\b');
+                    break;
+                case 't':
+                    sb.append('\t');
+                    break;
+                case 'n':
+                    sb.append('\n');
+                    break;
+                case 'f':
+                    sb.append('\f');
+                    break;
+                case 'r':
+                    sb.append('\r');
+                    break;
+                case 'u':
+                    try {
+                        sb.append((char)Integer.parseInt(this.next(4), 16));
+                    } catch (NumberFormatException e) {
+                        throw this.syntaxError("Illegal escape.", e);
+                    }
+                    break;
+                case '"':
+                case '\'':
+                case '\\':
+                case '/':
+                    sb.append(c);
+                    break;
+                default:
+                    throw this.syntaxError("Illegal escape.");
+                }
+                break;
+            default:
+                if (c == quote) {
+                    return sb.toString();
+                }
+                sb.append(c);
+            }
+        }
+    }
+
+
+    /**
+     * Get the text up but not including the specified character or the
+     * end of line, whichever comes first.
+     * @param  delimiter A delimiter character.
+     * @return   A string.
+     * @throws JSONException Thrown if there is an error while searching
+     *  for the delimiter
+     */
+    public String nextTo(char delimiter) throws JSONException {
+        StringBuilder sb = new StringBuilder();
+        for (;;) {
+            char c = this.next();
+            if (c == delimiter || c == 0 || c == '\n' || c == '\r') {
+                if (c != 0) {
+                    this.back();
+                }
+                return sb.toString().trim();
+            }
+            sb.append(c);
+        }
+    }
+
+
+    /**
+     * Get the text up but not including one of the specified delimiter
+     * characters or the end of line, whichever comes first.
+     * @param delimiters A set of delimiter characters.
+     * @return A string, trimmed.
+     * @throws JSONException Thrown if there is an error while searching
+     *  for the delimiter
+     */
+    public String nextTo(String delimiters) throws JSONException {
+        char c;
+        StringBuilder sb = new StringBuilder();
+        for (;;) {
+            c = this.next();
+            if (delimiters.indexOf(c) >= 0 || c == 0 ||
+                    c == '\n' || c == '\r') {
+                if (c != 0) {
+                    this.back();
+                }
+                return sb.toString().trim();
+            }
+            sb.append(c);
+        }
+    }
+
+
+    /**
+     * Get the next value. The value can be a Boolean, Double, Integer,
+     * JSONArray, JSONObject, Long, or String, or the JSONObject.NULL object.
+     * @throws JSONException If syntax error.
+     *
+     * @return An object.
+     */
+    public Object nextValue() throws JSONException {
+        char c = this.nextClean();
+        String string;
+
+        switch (c) {
+        case '"':
+        case '\'':
+            return this.nextString(c);
+        case '{':
+            this.back();
+            try {
+                return new JSONObject(this);
+            } catch (StackOverflowError e) {
+                throw new JSONException("JSON Array or Object depth too large to process.", e);
+            }
+        case '[':
+            this.back();
+            try {
+                return new JSONArray(this);
+            } catch (StackOverflowError e) {
+                throw new JSONException("JSON Array or Object depth too large to process.", e);
+            }
+        }
+
+        /*
+         * Handle unquoted text. This could be the values true, false, or
+         * null, or it can be a number. An implementation (such as this one)
+         * is allowed to also accept non-standard forms.
+         *
+         * Accumulate characters until we reach the end of the text or a
+         * formatting character.
+         */
+
+        StringBuilder sb = new StringBuilder();
+        while (c >= ' ' && ",:]}/\\\"[{;=#".indexOf(c) < 0) {
+            sb.append(c);
+            c = this.next();
+        }
+        if (!this.eof) {
+            this.back();
+        }
+
+        string = sb.toString().trim();
+        if ("".equals(string)) {
+            throw this.syntaxError("Missing value");
+        }
+        return JSONObject.stringToValue(string);
+    }
+
+
+    /**
+     * Skip characters until the next character is the requested character.
+     * If the requested character is not found, no characters are skipped.
+     * @param to A character to skip to.
+     * @return The requested character, or zero if the requested character
+     * is not found.
+     * @throws JSONException Thrown if there is an error while searching
+     *  for the to character
+     */
+    public char skipTo(char to) throws JSONException {
+        char c;
+        try {
+            long startIndex = this.index;
+            long startCharacter = this.character;
+            long startLine = this.line;
+            this.reader.mark(1000000);
+            do {
+                c = this.next();
+                if (c == 0) {
+                    // in some readers, reset() may throw an exception if
+                    // the remaining portion of the input is greater than
+                    // the mark size (1,000,000 above).
+                    this.reader.reset();
+                    this.index = startIndex;
+                    this.character = startCharacter;
+                    this.line = startLine;
+                    return 0;
+                }
+            } while (c != to);
+            this.reader.mark(1);
+        } catch (IOException exception) {
+            throw new JSONException(exception);
+        }
+        this.back();
+        return c;
+    }
+
+    /**
+     * Make a JSONException to signal a syntax error.
+     *
+     * @param message The error message.
+     * @return  A JSONException object, suitable for throwing
+     */
+    public JSONException syntaxError(String message) {
+        return new JSONException(message + this.toString());
+    }
+
+    /**
+     * Make a JSONException to signal a syntax error.
+     *
+     * @param message The error message.
+     * @param causedBy The throwable that caused the error.
+     * @return  A JSONException object, suitable for throwing
+     */
+    public JSONException syntaxError(String message, Throwable causedBy) {
+        return new JSONException(message + this.toString(), causedBy);
+    }
+
+    /**
+     * Make a printable string of this JSONTokener.
+     *
+     * @return " at {index} [character {character} line {line}]"
+     */
+    @Override
+    public String toString() {
+        return " at " + this.index + " [character " + this.character + " line " +
+                this.line + "]";
+    }
+}

src/teavm/java/net/lax1dude/eaglercraft/JSONWriter.java

@@ -0,0 +1,414 @@
+package net.lax1dude.eaglercraft;
+
+import java.io.IOException;
+import java.util.Collection;
+import java.util.Map;
+
+/*
+Copyright (c) 2006 JSON.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+/**
+ * JSONWriter provides a quick and convenient way of producing JSON text.
+ * The texts produced strictly conform to JSON syntax rules. No whitespace is
+ * added, so the results are ready for transmission or storage. Each instance of
+ * JSONWriter can produce one JSON text.
+ * <p>
+ * A JSONWriter instance provides a <code>value</code> method for appending
+ * values to the
+ * text, and a <code>key</code>
+ * method for adding keys before values in objects. There are <code>array</code>
+ * and <code>endArray</code> methods that make and bound array values, and
+ * <code>object</code> and <code>endObject</code> methods which make and bound
+ * object values. All of these methods return the JSONWriter instance,
+ * permitting a cascade style. For example, <pre>
+ * new JSONWriter(myWriter)
+ *     .object()
+ *         .key("JSON")
+ *         .value("Hello, World!")
+ *     .endObject();</pre> which writes <pre>
+ * {"JSON":"Hello, World!"}</pre>
+ * <p>
+ * The first method called must be <code>array</code> or <code>object</code>.
+ * There are no methods for adding commas or colons. JSONWriter adds them for
+ * you. Objects and arrays can be nested up to 200 levels deep.
+ * <p>
+ * This can sometimes be easier than using a JSONObject to build a string.
+ * @author JSON.org
+ * @version 2016-08-08
+ */
+public class JSONWriter {
+    private static final int maxdepth = 200;
+
+    /**
+     * The comma flag determines if a comma should be output before the next
+     * value.
+     */
+    private boolean comma;
+
+    /**
+     * The current mode. Values:
+     * 'a' (array),
+     * 'd' (done),
+     * 'i' (initial),
+     * 'k' (key),
+     * 'o' (object).
+     */
+    protected char mode;
+
+    /**
+     * The object/array stack.
+     */
+    private final JSONObject stack[];
+
+    /**
+     * The stack top index. A value of 0 indicates that the stack is empty.
+     */
+    private int top;
+
+    /**
+     * The writer that will receive the output.
+     */
+    protected Appendable writer;
+
+    /**
+     * Make a fresh JSONWriter. It can be used to build one JSON text.
+     * @param w an appendable object
+     */
+    public JSONWriter(Appendable w) {
+        this.comma = false;
+        this.mode = 'i';
+        this.stack = new JSONObject[maxdepth];
+        this.top = 0;
+        this.writer = w;
+    }
+
+    /**
+     * Append a value.
+     * @param string A string value.
+     * @return this
+     * @throws JSONException If the value is out of sequence.
+     */
+    private JSONWriter append(String string) throws JSONException {
+        if (string == null) {
+            throw new JSONException("Null pointer");
+        }
+        if (this.mode == 'o' || this.mode == 'a') {
+            try {
+                if (this.comma && this.mode == 'a') {
+                    this.writer.append(',');
+                }
+                this.writer.append(string);
+            } catch (IOException e) {
+            	// Android as of API 25 does not support this exception constructor
+            	// however we won't worry about it. If an exception is happening here
+            	// it will just throw a "Method not found" exception instead.
+                throw new JSONException(e);
+            }
+            if (this.mode == 'o') {
+                this.mode = 'k';
+            }
+            this.comma = true;
+            return this;
+        }
+        throw new JSONException("Value out of sequence.");
+    }
+
+    /**
+     * Begin appending a new array. All values until the balancing
+     * <code>endArray</code> will be appended to this array. The
+     * <code>endArray</code> method must be called to mark the array's end.
+     * @return this
+     * @throws JSONException If the nesting is too deep, or if the object is
+     * started in the wrong place (for example as a key or after the end of the
+     * outermost array or object).
+     */
+    public JSONWriter array() throws JSONException {
+        if (this.mode == 'i' || this.mode == 'o' || this.mode == 'a') {
+            this.push(null);
+            this.append("[");
+            this.comma = false;
+            return this;
+        }
+        throw new JSONException("Misplaced array.");
+    }
+
+    /**
+     * End something.
+     * @param m Mode
+     * @param c Closing character
+     * @return this
+     * @throws JSONException If unbalanced.
+     */
+    private JSONWriter end(char m, char c) throws JSONException {
+        if (this.mode != m) {
+            throw new JSONException(m == 'a'
+                ? "Misplaced endArray."
+                : "Misplaced endObject.");
+        }
+        this.pop(m);
+        try {
+            this.writer.append(c);
+        } catch (IOException e) {
+        	// Android as of API 25 does not support this exception constructor
+        	// however we won't worry about it. If an exception is happening here
+        	// it will just throw a "Method not found" exception instead.
+            throw new JSONException(e);
+        }
+        this.comma = true;
+        return this;
+    }
+
+    /**
+     * End an array. This method most be called to balance calls to
+     * <code>array</code>.
+     * @return this
+     * @throws JSONException If incorrectly nested.
+     */
+    public JSONWriter endArray() throws JSONException {
+        return this.end('a', ']');
+    }
+
+    /**
+     * End an object. This method most be called to balance calls to
+     * <code>object</code>.
+     * @return this
+     * @throws JSONException If incorrectly nested.
+     */
+    public JSONWriter endObject() throws JSONException {
+        return this.end('k', '}');
+    }
+
+    /**
+     * Append a key. The key will be associated with the next value. In an
+     * object, every value must be preceded by a key.
+     * @param string A key string.
+     * @return this
+     * @throws JSONException If the key is out of place. For example, keys
+     *  do not belong in arrays or if the key is null.
+     */
+    public JSONWriter key(String string) throws JSONException {
+        if (string == null) {
+            throw new JSONException("Null key.");
+        }
+        if (this.mode == 'k') {
+            try {
+                JSONObject topObject = this.stack[this.top - 1];
+                // don't use the built in putOnce method to maintain Android support
+				if(topObject.has(string)) {
+					throw new JSONException("Duplicate key \"" + string + "\"");
+				}
+                topObject.put(string, true);
+                if (this.comma) {
+                    this.writer.append(',');
+                }
+                this.writer.append(JSONObject.quote(string));
+                this.writer.append(':');
+                this.comma = false;
+                this.mode = 'o';
+                return this;
+            } catch (IOException e) {
+            	// Android as of API 25 does not support this exception constructor
+            	// however we won't worry about it. If an exception is happening here
+            	// it will just throw a "Method not found" exception instead.
+                throw new JSONException(e);
+            }
+        }
+        throw new JSONException("Misplaced key.");
+    }
+
+
+    /**
+     * Begin appending a new object. All keys and values until the balancing
+     * <code>endObject</code> will be appended to this object. The
+     * <code>endObject</code> method must be called to mark the object's end.
+     * @return this
+     * @throws JSONException If the nesting is too deep, or if the object is
+     * started in the wrong place (for example as a key or after the end of the
+     * outermost array or object).
+     */
+    public JSONWriter object() throws JSONException {
+        if (this.mode == 'i') {
+            this.mode = 'o';
+        }
+        if (this.mode == 'o' || this.mode == 'a') {
+            this.append("{");
+            this.push(new JSONObject());
+            this.comma = false;
+            return this;
+        }
+        throw new JSONException("Misplaced object.");
+
+    }
+
+
+    /**
+     * Pop an array or object scope.
+     * @param c The scope to close.
+     * @throws JSONException If nesting is wrong.
+     */
+    private void pop(char c) throws JSONException {
+        if (this.top <= 0) {
+            throw new JSONException("Nesting error.");
+        }
+        char m = this.stack[this.top - 1] == null ? 'a' : 'k';
+        if (m != c) {
+            throw new JSONException("Nesting error.");
+        }
+        this.top -= 1;
+        this.mode = this.top == 0
+            ? 'd'
+            : this.stack[this.top - 1] == null
+            ? 'a'
+            : 'k';
+    }
+
+    /**
+     * Push an array or object scope.
+     * @param jo The scope to open.
+     * @throws JSONException If nesting is too deep.
+     */
+    private void push(JSONObject jo) throws JSONException {
+        if (this.top >= maxdepth) {
+            throw new JSONException("Nesting too deep.");
+        }
+        this.stack[this.top] = jo;
+        this.mode = jo == null ? 'a' : 'k';
+        this.top += 1;
+    }
+
+    /**
+     * Make a JSON text of an Object value. If the object has an
+     * value.toJSONString() method, then that method will be used to produce the
+     * JSON text. The method is required to produce a strictly conforming text.
+     * If the object does not contain a toJSONString method (which is the most
+     * common case), then a text will be produced by other means. If the value
+     * is an array or Collection, then a JSONArray will be made from it and its
+     * toJSONString method will be called. If the value is a MAP, then a
+     * JSONObject will be made from it and its toJSONString method will be
+     * called. Otherwise, the value's toString method will be called, and the
+     * result will be quoted.
+     *
+     * <p>
+     * Warning: This method assumes that the data structure is acyclical.
+     *
+     * @param value
+     *            The value to be serialized.
+     * @return a printable, displayable, transmittable representation of the
+     *         object, beginning with <code>{</code>&nbsp;<small>(left
+     *         brace)</small> and ending with <code>}</code>&nbsp;<small>(right
+     *         brace)</small>.
+     * @throws JSONException
+     *             If the value is or contains an invalid number.
+     */
+    public static String valueToString(Object value) throws JSONException {
+        if (value == null || value.equals(null)) {
+            return "null";
+        }
+        if (value instanceof JSONString) {
+            String object;
+            try {
+                object = ((JSONString) value).toJSONString();
+            } catch (Exception e) {
+                throw new JSONException(e);
+            }
+            if (object != null) {
+                return object;
+            }
+            throw new JSONException("Bad value from toJSONString: " + object);
+        }
+        if (value instanceof Number) {
+            // not all Numbers may match actual JSON Numbers. i.e. Fractions or Complex
+            final String numberAsString = JSONObject.numberToString((Number) value);
+            if(JSONObject.NUMBER_PATTERN.matcher(numberAsString).matches()) {
+                // Close enough to a JSON number that we will return it unquoted
+                return numberAsString;
+            }
+            // The Number value is not a valid JSON number.
+            // Instead we will quote it as a string
+            return JSONObject.quote(numberAsString);
+        }
+        if (value instanceof Boolean || value instanceof JSONObject
+                || value instanceof JSONArray) {
+            return value.toString();
+        }
+        if (value instanceof Map) {
+            Map<?, ?> map = (Map<?, ?>) value;
+            return new JSONObject(map).toString();
+        }
+        if (value instanceof Collection) {
+            Collection<?> coll = (Collection<?>) value;
+            return new JSONArray(coll).toString();
+        }
+        if (value.getClass().isArray()) {
+            return new JSONArray(value).toString();
+        }
+        if(value instanceof Enum<?>){
+            return JSONObject.quote(((Enum<?>)value).name());
+        }
+        return JSONObject.quote(value.toString());
+    }
+
+    /**
+     * Append either the value <code>true</code> or the value
+     * <code>false</code>.
+     * @param b A boolean.
+     * @return this
+     * @throws JSONException if a called function has an error
+     */
+    public JSONWriter value(boolean b) throws JSONException {
+        return this.append(b ? "true" : "false");
+    }
+
+    /**
+     * Append a double value.
+     * @param d A double.
+     * @return this
+     * @throws JSONException If the number is not finite.
+     */
+    public JSONWriter value(double d) throws JSONException {
+        return this.value(Double.valueOf(d));
+    }
+
+    /**
+     * Append a long value.
+     * @param l A long.
+     * @return this
+     * @throws JSONException if a called function has an error
+     */
+    public JSONWriter value(long l) throws JSONException {
+        return this.append(Long.toString(l));
+    }
+
+
+    /**
+     * Append an object value.
+     * @param object The object to append. It can be null, or a Boolean, Number,
+     *   String, JSONObject, or JSONArray, or an object that implements JSONString.
+     * @return this
+     * @throws JSONException If the value is out of sequence.
+     */
+    public JSONWriter value(Object object) throws JSONException {
+        return this.append(valueToString(object));
+    }
+}

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

@@ -72,6 +72,7 @@ import net.lax1dude.eaglercraft.AssetRepository;
 import net.lax1dude.eaglercraft.Base64;
 import net.lax1dude.eaglercraft.Client;
 import net.lax1dude.eaglercraft.EaglerImage;
+import net.lax1dude.eaglercraft.JSONObject;
 import net.lax1dude.eaglercraft.adapter.teavm.IndexedDBFilesystem;
 import net.lax1dude.eaglercraft.adapter.teavm.IndexedDBFilesystem.OpenState;
 //import net.lax1dude.eaglercraft.adapter.teavm.IndexedDBFilesystem;
@@ -202,7 +203,7 @@ public class EaglerAdapterImpl2 {
 	@JSBody(params = { "e" }, script = "return e.which;")
 	private static native int getWhich(KeyboardEvent e);
 	
-	public static final void initializeContext(HTMLElement rootElement, String assetPackageURI) {
+	public static final void initializeContext(HTMLElement rootElement, String assetPackageURI, JSONObject config) {
 		parent = rootElement;
 		String s = parent.getAttribute("style");
 		parent.setAttribute("style", (s == null ? "" : s)+"overflow-x:hidden;overflow-y:hidden;");
@@ -312,6 +313,10 @@ public class EaglerAdapterImpl2 {
 		});
 		onBeforeCloseRegister();
 		
+		if(!config.isNull("dataBaseName")) {
+			dataBaseName = config.getString("dataBaseName");
+		}
+		
 		OpenState st = IndexedDBFilesystem.initialize();
 		if(st != OpenState.OPENED) {
 			if(st == OpenState.LOCKED) {
@@ -334,8 +339,24 @@ public class EaglerAdapterImpl2 {
 		
 		mouseEvents.clear();
 		keyEvents.clear();
+		
+		if(!config.isNull("playerUsername")) {
+			forcedUser = config.getString("playerUsername");
+		}
+		if(!config.isNull("serverIP")) {
+			forcedServer = config.getString("serverIP");
+		}
+		
+		if(!config.isNull("joinServerOnLaunch")) {
+			joinServerOnLaunch = config.getBoolean("joinServerOnLaunch");
+		}
 	}
 	
+	public static String forcedUser = null;
+	public static String forcedServer = null;
+	public static String dataBaseName = null;
+	public static boolean joinServerOnLaunch = false;
+	
 	public static final void destroyContext() {
 		
 	}

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

@@ -23,6 +23,7 @@ import org.teavm.jso.indexeddb.IDBVersionChangeEvent;
 import org.teavm.jso.typedarrays.ArrayBuffer;
 import org.teavm.jso.typedarrays.Uint8Array;
 
+import net.PeytonPlayz585.opengl.GL11;
 import net.lax1dude.eaglercraft.adapter.EaglerAdapterImpl2;
 import net.lax1dude.eaglercraft.adapter.EaglerAdapterImpl2.FileEntry;
 
@@ -36,7 +37,13 @@ public class IndexedDBFilesystem {
 	private static IDBDatabase db = null;
 
 	public static final OpenState initialize() {
-		DatabaseOpen dbo = AsyncHandlers.openDB("_net_lax1dude_eaglercraft_beta_IndexedDBFilesystem_1_3");
+		DatabaseOpen dbo;
+		if(GL11.dataBaseName != null) {
+			System.out.println("Setting custom database name to " + GL11.dataBaseName);
+			dbo = AsyncHandlers.openDB(GL11.dataBaseName);
+		} else {
+			dbo = AsyncHandlers.openDB("_net_lax1dude_eaglercraft_beta_IndexedDBFilesystem_1_3");
+		}
 		if(dbo == null) {
 			err = "Unknown Error";
 			return OpenState.ERROR;

web/index.html

@@ -5,10 +5,12 @@
     <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
     <script type="text/javascript" charset="utf-8" src="js/app.js"></script>
     <script type = text/javascript>
-            window.addEventListener("load", function() {
+		window.addEventListener("load", function() {
-            	window.classicConfig = ["game","resources.mc"];
+			window.config = {
-             		main();
+				gameContainer: "game", assetsLocation: "resources.mc", playerUsername: null, serverIP: null, joinServerOnLaunch: false
-            });
+			};
+			main();
+		});
 
 	    document.esc = false;
 	    document.addEventListener('keydown', function(e) {