cocos2d js 调用 c++ 版本cocos2d js 3.6

1、http://www.cocos2d-x.org/docs/manual/code-ide/function-guides/add-3rd-party-lib/binding-custom-class-to-js/zh

2、http://cocos2d.9tech.cn/news/2014/0106/39499.html

3、添加自定义类：SwimAlg

4、添加自定义函数：std::vector<Vec2> test(std::vector<Vec2> v){ return v;}5、添加自定义类型 std::vector<Vec2> (因为自带的没有该类型转换)：

在tools/bindings-generator/targets/spidermonkey/conversions.yaml 中添加代码

找到native_types: 在下面添加一行

"@std::vector<cocos2d::Vec2.*>.>": "std::vector<cocos2d::Vec2>"找到 # int to jsval 在下面添加一行

"@vector<cocos2d::Vec2.*>": "${out_value} = std_vector_ccvec2_to_jsval(cx,${in_value})"

找到 # jsval to int 在下面添加一行"@vector<cocos2d::Vec2.*>": "ok &= jsval_to_std_vector_ccvec2(cx,${in_value},&${out_value})"

在frameworks/js-bindings/bindings/manual/js_manual_conversions中添加代码

jsval std_vector_ccvec2_to_jsval( JSContext *cx,const std::vector<cocos2d::Vec2>& v)
{
    JS::RootedObject jsretArr(cx,JS_NewArrayObject(cx,0));
    
    int i = 0;
    for (const cocos2d::Vec2 obj : v)
    {
        JS::RootedValue arrElement(cx);
        arrElement = vector2_to_jsval(cx,obj);
        
        if (!JS_SetElement(cx,jsretArr,i,arrElement)) {
            break;
        }
        ++i;
    }
    return OBJECT_TO_JSVAL(jsretArr);
}

bool jsval_to_std_vector_ccvec2( JSContext *cx,JS::HandleValue vp,std::vector<cocos2d::Vec2>* ret){
    JS::RootedObject jsobj(cx);
    bool ok = vp.isObject() && JS_ValueToObject( cx,vp,&jsobj );
    JSB_PRECONDITION3( ok,cx,false,"Error converting value to object");
    JSB_PRECONDITION3( jsobj && JS_IsArrayObject( cx,jsobj),"Object must be an array");
    
    uint32_t len = 0;
    JS_GetArrayLength(cx,jsobj,&len);
    
    for (uint32_t i=0; i < len; i++)
    {
        JS::RootedValue value(cx);
        if (JS_GetElement(cx,&value))
        {
            if (value.isObject())
            {
                Vec2 v;
                ok = jsval_to_vector2(cx,value,&v);
                if (ok)
                {
                    ret->push_back(static_cast<Vec2>(v));
                }
            }
            else
            {
                JS_ReportError(cx,"not supported type in array");
                return false;
            }
        }
    }
    
    return true;
}

5、以上可以在xcode上跑起来，如果需要打包安卓包，需要在Android.mk中添加

	../../../js-bindings/cocos2d-x/cocos/user/SwimAlg.cpp\
	../../../custom/auto/jsb_SwimAlg.cpp \

$(LOCAL_PATH)/../../../js-bindings/cocos2d-x/cocos/user \

原文链接：https://www.f2er.com/cocos2dx/340903.html

cocos2d js 调用 c++ 版本cocos2d js 3.6

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