cocos2d-js javascriptbinding实现

cocos2dx新创建项目android部分却少build_native.py 文件需要用cocos 命令行进行编译:

基础配置部分: (for mac)

/cocos2d-x-3.x/tools/cocos2d-console/bin下 (ccoos2dx 3.12)

1. chmod u+x cocos.py

2. ./cocos.py new HelloWorldDemo -p com.coco2dx.org -l cpp -d ~/Desktop (创建项目)

3. 先要cd进入proj.android目录 cocos compile -p android (debug 编译)

4. 先要cd进入proj.android目录 cocos compile -p android -m release (release 编译)

5. 下载macport 软件下载:http://www.ccvita.com/434.html(找到对应的操作系统版本)

官网(https://www.macports.org/install.php)

- 环境变量设置:

修改.bash_profile 文件 添加:

export PATH=/opt/local/bin:$PATH

export PATH=/opt/local/sbin:$PATH

source .bash_profile (修改环境变量)

- 操作指南:

sudo port -v selfupdate (mac ports更新)

port search name (搜索软件)

sudo port install name (安装软件)

sudo port uninstall name (卸载软件)

port outdated (查看软件版本)

sudo port upgrade outdated (升级软件)

－ mac port 安卓:

sudo port -v selfupdate

sudo port install python27 py27-yaml py27-cheetah

6. 下来jsbinding一次你就知道有多坑,js版本必须要把原工程的tools拷贝过来(这里可以直接使用cocos2dx引擎下的tools文件夹即可),否则是不可以 pythongenbindings.py 无法使用的,但是lua比较正常;

7. 进入当前生成项目下的tools 中的 tojs文件加,复制一下cocos2dx_experimental_webView.ini进行修改操作,重命名TestJSB.ini;

- 修改项:

[TestJSB]

# the prefix to be added to the generated functions. You might or might not use this in your own

# templates

prefix = TestJSB

# create a target namespace (in javascript,this would create some code like the equiv. to `ns = ns || {}`)

# all classes will be embedded in that namespace

target_namespace = my

macro_judgement = #if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID || CC_TARGET_PLATFORM == CC_PLATFORM_IOS) && !defined(CC_TARGET_OS_TVOS)

android_headers = -I%(androidndkdir)s/platforms/android-14/arch-arm/usr/include -I%(androidndkdir)s/sources/cxx-stl/gnu-libstdc++/4.7/libs/armeabi-v7a/include -I%(androidndkdir)s/sources/cxx-stl/gnu-libstdc++/4.7/include -I%(androidndkdir)s/sources/cxx-stl/gnu-libstdc++/4.8/libs/armeabi-v7a/include -I%(androidndkdir)s/sources/cxx-stl/gnu-libstdc++/4.8/include

android_flags = -D_SIZE_T_DEFINED_

clang_headers = -I%(clangllvmdir)s/lib/clang/%(clang_version)s/include

clang_flags = -nostdinc -x c++ -std=c++11 -U __SSE__

cocos_headers = -I%(cocosdir)s/cocos -I%(cocosdir)s/cocos/editor-support -I%(cocosdir)s/cocos/platform/android

cocos_flags = -DANDROID

cxxgenerator_headers =

# extra arguments for clang

extra_arguments = %(android_headers)s %(clang_headers)s %(cxxgenerator_headers)s %(cocos_headers)s %(android_flags)s %(clang_flags)s %(cocos_flags)s %(extra_flags)s

# what headers to parse

headers = %(cocosdir)s/../runtime-src/Classes/TestJSB.h

# what classes to produce code for. You can use regular expressions here. When testing the regular

# expression,it will be enclosed in "^$",like this: "^Menu*$".

classes = TestJSB

# what should we skip? in the format ClassName::[function function]

# ClassName is a regular expression,but will be used like this: "^ClassName$" functions are also

# regular expressions,they will not be surrounded by "^$". If you want to skip a whole class,just

# add a single "*" as functions. See bellow for several examples. A special class name is "*",which

# will apply to all class names. This is a convenience wildcard to be able to skip similar named

# functions from all classes.

skip =

rename_functions =

rename_classes =

# for all class names,should we remove something when registering in the target VM?

remove_prefix =

# classes for which there will be no "parent" lookup

classes_have_no_parents =

# base classes which will be skipped when their sub-classes found them.

base_classes_to_skip =

# classes that create no constructor

# Set is special and we will use a hand-written constructor

abstract_classes =

# Determining whether to use script object(js object) to control the lifecycle of native(cpp) object or the other way around. Supported values are 'yes' or 'no'.

script_control_cpp = no

8. 添加c++ 原文件与头文件:

- 文件名称:

TestJSB.h

TestJSB.cpp

- 代码:

//TestJSB.h

// TestJSB.hpp

// TestCocosJs

//

// Created by kaitiren on 16/8/4.

//

//

#ifndef TestJSB_hpp

#define TestJSB_hpp

#include <stdio.h>

#include "cocos2d.h"

using namespace cocos2d;

class TestJSB : public cocos2d::Layer

{

public:

TestJSB();

~TestJSB();

void testprint(void);

void testString(const char* _str);

void testInt(int value);

void testLong(long value);

void testBool(bool isBoo);

CREATE_FUNC(TestJSB);

};

#endif /* TestJSB_h */

///TestJSB.cpp

//

// TestJSB.cpp

// TestCocosJs

//

// Created by kaitiren on 16/8/4.

//

#include "TestJSB.h"

TestJSB:: TestJSB()

{

printf("n TestJSB:: TestJSB() n");

}

TestJSB:: ~TestJSB()

{

}

void TestJSB:: testprint(void)

{

CCLOG("TestJSB:: testprint(void)");

printf("n TestJSB:: testprint(void) n");

}

void TestJSB:: testString(const char* _str)

{

printf("n TestJSB:: testString(_str): %s n",_str);

}

void TestJSB:: testInt(int value)

{

printf("n TestJSB:: testInt: %d n ",value);

}

void TestJSB:: testLong(long value)

{

printf("n TestJSB:: testLong: %ld n ",value);

}

void TestJSB:: testBool(bool isBoo)

{

printf("n TestJSB:: testBool: %d n",isBoo);

}

/// cpp

9. 编译pythongenbindings.py 文件,查看错误部分,并且修改,完成后进行添加到xcode工程(注意: 在cocos2d_js_bindings.xcodeproj项目下的auto 文件加进行添加，这里有一个坑是必须要添加到ios项目内,否则识别不到);

坑: 如果cpp文件头文件搜索不到自行添加一下即可;

注意导入头文件部分:#include"../../../../../runtime-src/Classes/TestJSB.h"

修改genbindings.py文件:

cmd_args = {

#'cocos2dx.ini': ('cocos2d-x','jsb_cocos2dx_auto'),

#'cocos2dx_audioengine.ini': ('cocos2dx_audioengine','jsb_cocos2dx_audioengine_auto'),

#'cocos2dx_extension.ini': ('cocos2dx_extension','jsb_cocos2dx_extension_auto'),

#'cocos2dx_builder.ini': ('cocos2dx_builder','jsb_cocos2dx_builder_auto'),

#'cocos2dx_ui.ini': ('cocos2dx_ui','jsb_cocos2dx_ui_auto'),

#'cocos2dx_studio.ini': ('cocos2dx_studio','jsb_cocos2dx_studio_auto'),

#'cocos2dx_spine.ini': ('cocos2dx_spine','jsb_cocos2dx_spine_auto'),

#'cocos2dx_3d.ini': ('cocos2dx_3d','jsb_cocos2dx_3d_auto'),

#'cocos2dx_3d_ext.ini': ('cocos2dx_3d_extension','jsb_cocos2dx_3d_extension_auto'),

#'cocos2dx_experimental_webView.ini': ('cocos2dx_experimental_webView','jsb_cocos2dx_experimental_webView_auto'),

#'cocos2dx_experimental_video.ini': ('cocos2dx_experimental_video','jsb_cocos2dx_experimental_video_auto'),

#'cocos2dx_physics3d.ini': ('cocos2dx_physics3d','jsb_cocos2dx_physics3d_auto'),

'cocos2dx_navmesh.ini': ('cocos2dx_navmesh','jsb_cocos2dx_navmesh_auto'),

#################################################

'TestJSB.ini': ('TestJSB','jsb_testjsb_auto'),

'JSBindingIOSWXManager.ini': ('JSBindingIOSWXManager','jsbinding_ioswxmanager_auto'),#添加部分

}

10. 进入当前项目的Classes中的AppDelegate.cpp:

- 修改代码:

添加:"scripting/js-bindings/auto/jsb_testjsb_auto.hpp"

注册代码: sc->addRegisterCallback(register_all_TestJSB); 这里可以从jsb_testjsb_auto.hpp 中查找;

完成后进行xcode build操作;

11. 进行js代码编辑与测试: (进入 app.js HelloWorldScene)

- 添加测试代码

var HelloWorldScene = cc.Scene.extend({

onEnter:function () {

this._super();

var layer = new HelloWorldLayer();

this.addChild(layer);

///

console.log("aaaaaaaassssssss");

///

var testJSB = new my.TestJSB();

testJSB.testprint();

testJSB.testString("pppppppppppppppppppppppp");

testJSB.testInt(123);

testJSB.testLong(999999999999);

testJSB.testBool(true);

}

});

控制台输出如果正常js 调用 c++ 部分结束;

12. 解决c++ 调用 js 部分: (进入jsb_testjsb_auto.cpp文件夹)

c++ 模块:

bool js_TestJSB_TestJSB_testString(JSContext *cx,uint32_t argc,jsval *vp)

{

JS::CallArgs args = JS::CallArgsFromVp(argc,vp);

bool ok = true;

JS::RootedObject obj(cx,args.thisv().toObjectOrNull());

js_proxy_t *proxy = jsb_get_js_proxy(obj);

TestJSB* cobj = (TestJSB *)(proxy ? proxy->ptr : NULL);

JSB_PRECONDITION2( cobj,cx,false,"js_TestJSB_TestJSB_testString : Invalid Native Object");

if (argc == 1) {

const char* arg0 = nullptr;

std::string arg0_tmp; ok &= jsval_to_std_string(cx,args.get(0),&arg0_tmp); arg0 = arg0_tmp.c_str();

JSB_PRECONDITION2(ok,"js_TestJSB_TestJSB_testString : Error processing arguments");

cobj->testString(arg0);

args.rval().setUndefined();

/// c++ 调用 js 部分

JSContext* jc = ScriptingCore::getInstance()->getGlobalContext();

// jsval ret;

ScriptingCore::getInstance()->evalString( "cpp_callback(5,100)" ); // js 全局方法

/// c++ 调用 js 部分

/// ScriptingCore::getInstance()->executeFunctionWithOwner(<#jsval owner#>,<#const char *name#>,<#uint32_t argc#>,<#jsval *vp#>) // 此方法可调用全局文件

return true;

}

JS_ReportError(cx,"js_TestJSB_TestJSB_testString : wrong number of arguments: %d,was expecting %d",argc,1);

return false;

}

js 模块:

function cpp_callback(a,b) {
    cc.log("cpp return two integer: " + a + " " b "ssssssssssssssssssssssssssssssssss");
}

模拟器与移动端运行正常打印;

13. 区分native与web：

if(cc.sys.isNative)
{
    "platform is native !!!");
    var testJSB = new my.TestJSB();
    testJSB.testprint();
    testString("pppppppppppppppppppppppp");
    testInt(123);
    testLong(999999999999);
    testBool(true);
}
else
{
    "sys.platform is browser !!!");
}

js binding 部分完结;

14. android版本编译部分;

编译android到当前项目下的proj.android中

控制台执行:

cocos compile -p android

如果有jsb的部分要修改android.mk两处:

- 第一处是在当前项目下runtime-src中的proj.android，导入classes文件夹下的cpp文件到android.mk中;

- 第二处是在/cocos2d-x/cocos/scripting/js-bindings/proj.android/Android.mk进行binding.cpp文件添加;

完成后接续ndk编译尝试;

15. 疑难错误解答:

error: JS: assets/src/app.js:36:ReferenceError: my is not defined

查看AppDelegate.cpp是否没有注册要jsb的cpp函数;

如: sc->addRegisterCallback(register_all_JSBindingIOSWXManager);

error: cpp调用js方法传参问题: (这里可以放到任何一个cpp内:)

#include"scripting/js-bindings/manual/cocos2d_specifics.hpp"

"jsapi.h"

"jsfriendapi.h"

1. boolTSScriptJS::RunFunction(std::stringfunName,std::stringarg)
2. {
3. std::stringrStr=funName+"(""+arg+"");"; // 注意这里的括号部分
4. jsvalv1;
5. JSBoolr=ScriptingCore::getInstance()->evalString(rStr.c_str(),&v1);
6. returnr;

7. }

例子: c++:

JSC 进行cocos js代码加密:

ter: cocos jscompile -s /Users/fox/Documents/js -d /Users/fox/Documents/jsc

-s：js文件路径

-d：jsc输出路径

拷贝项目内的js原文件夹:

js文件路径：

/Users/xxx/xxx/ClientC2DJs/src

/Users/xxx/xxx/ClientC2DJs/frameworks/cocos2d-x/cocos/scripting/js-bindings/script

执行代码:

cocos jscompile -s /Users/fox/Documents/js -d /Users/fox/Documents/jsc

完成后替换项目中的两个文件夹: ...cocos2d/jsbinding/script 不要替换jsbinding中的auto文件夹,...逻辑部分src 但是不要替换main；

完成后运行测试;

（编辑：李大同）

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