org.mozilla.javascript.WrappedException: Wrapped java.lang.ClassCastException: org.mozilla.javascript.Undefined cannot be cast to java.lang.Number (黯世之旅.js#2)
at org.mozilla.javascript.Context.throwAsScriptRuntimeEx(Unknown Source)
at org.mozilla.javascript.MemberBox.invoke(Unknown Source)
at org.mozilla.javascript.FunctionObject.call(Unknown Source)
at org.mozilla.javascript.Interpreter.interpretLoop(Unknown Source)
at script.addABlock(黯世之旅.js:2)
at script(黯世之旅.js:19)
at org.mozilla.javascript.Interpreter.interpret(Unknown Source)
at org.mozilla.javascript.InterpretedFunction.call(Unknown Source)
at org.mozilla.javascript.ContextFactory.doTopCall(Unknown Source)
at org.mozilla.javascript.ScriptRuntime.doTopCall(Unknown Source)
at org.mozilla.javascript.InterpretedFunction.exec(Unknown Source)
at net.zhuoweizhang.mcpelauncher.ScriptManager.initJustLoadedScript(ScriptManager.java:271)
at net.zhuoweizhang.mcpelauncher.ScriptManager$ParseThread.run(ScriptManager.java:196)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.ClassCastException: org.mozilla.javascript.Undefined cannot be cast to java.lang.Number
at net.zhuoweizhang.mcpelauncher.ScriptManager.expandTexturesArray(ScriptManager.java:1355)
at net.zhuoweizhang.mcpelauncher.ScriptManager$NativeBlockApi.defineBlockImpl(ScriptManager.java:4041)
at net.zhuoweizhang.mcpelauncher.ScriptManager$NativeBlockApi.defineBlock(ScriptManager.java:4010)
at java.lang.reflect.Method.invoke(Native Method)
... 11 more

应该这样写！
function addABlock(id,name,tex,model,tm,m){
Block.defineBlock(id,name,
[[tex, m[0]], //下
[tex, m[1]], //上
[tex, m[2]], //后
[tex, m[3]], //前
[tex, m[4]], //左
[tex, m[5]], //右
[tex, m[0]], //下
[tex, m[1]], //上
[tex, m[2]], //后
[tex, m[3]], //前
[tex, m[4]], //左
[tex, m[5]]
], model,tm,0);
Block.setDestroyTime(id,1);
Player.addItemCreativeInv(id,64,0);
}
addABlock(36,"屠宰机","tzj",54,false,1,[0,1,0,0,0,0]);

水马上10级了