C#脚本实践(四): 反射与序列化

• 序列化
• 这个比较简单, .net直接就支持, 以XML序列化为例:
  

  public static string SerializeToString (object obj){XmlSerializer serializer = new XmlSerializer (obj.GetType ()); using (StringWriter writer = new StringWriter()) {serializer.Serialize (writer, obj); return writer.ToString ();}}public static T SerializeFromString<T> (string xml){XmlSerializer serializer = new XmlSerializer (typeof(T));  using (StringReader reader = new StringReader(xml)) {return (T)serializer.Deserialize (reader);}}

  public struct Vector3{public float x;public float y;public float z;}public class TestClass{public int testInt = 1234;public float testFloat = 0.2341f;public bool[] boolArray = {true, false, false, true};public Vector3 position;public TestClass (){this.position.x = 100;this.position.y = 100;this.position.z = 0;}}

  结果如下:

  <?xml version="1.0" encoding="utf-8"?><TestClass xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">  <testInt>1234</testInt>  <testFloat>0.2341</testFloat>  <boolArray>    <boolean>true</boolean>    <boolean>false</boolean>    <boolean>false</boolean>    <boolean>true</boolean>  </boolArray>  <position>    <x>100</x>    <y>100</y>    <z>0</z>  </position></TestClass>

  
  到时候把string用mono api传到C++里, 爱怎么存怎么存. 二进制格式同理
• 反射
• .net本身也支持反射, 问题是如何反射到C++里
• 用mono api取得类的meta信息, 然后反应到编辑器上去编辑
• 如果想偷懒的话, 可以直接用mono创建个窗口, 放个propertygrid控件, 再这个窗口嵌入到主编辑器的界面
  

  int depth = 0;void ListFields(MonoObject* object){assert(NULL != object);++depth;MonoClass* objectClass = mono_object_get_class(object);const char* className = mono_class_get_name(objectClass);printf("[%s]\n", className);void* iter = NULL;MonoClassField* field = NULL;while (field = mono_class_get_fields(objectClass, &iter)){for (int i = 0; i < depth; ++i){printf("\t");}const char* fieldName = mono_field_get_name(field);printf("%s : ", fieldName);MonoType* fieldType = mono_field_get_type(field);int type = mono_type_get_type(fieldType);switch (type){case MONO_TYPE_BOOLEAN:{bool boolValue = false;mono_field_get_value(object, field, &boolValue);printf("%s\n", boolValue ? "true" : "false");}break;case MONO_TYPE_I4:{int intValue = 0;mono_field_get_value(object, field, &intValue);printf("%d\n", intValue);}break;case MONO_TYPE_R4:{float floatValue = 0;mono_field_get_value(object, field, &floatValue);printf("%f\n", floatValue);}break;case MONO_TYPE_CHAR:case MONO_TYPE_I1:case MONO_TYPE_U1:case MONO_TYPE_I2:case MONO_TYPE_U2:case MONO_TYPE_U4:case MONO_TYPE_I:case MONO_TYPE_U:case MONO_TYPE_I8:case MONO_TYPE_U8:case MONO_TYPE_R8:{//@todo}break;case MONO_TYPE_SZARRAY:{MonoObject* value = mono_field_get_value_object(mono_domain_get(), field, object);MonoArray* array = (MonoArray*)value;uintptr_t size = mono_array_length(array);MonoClass* elementClass = mono_class_get_element_class(mono_object_get_class(value));MonoType* elementType = mono_class_get_type(elementClass);switch (mono_type_get_type(elementType)){case MONO_TYPE_BOOLEAN:{bool* data = mono_array_addr(array, bool, 0);for (int i = 0; i < size; ++i){printf("%s ", data[i] ? "true" : "false");}printf("\n");}break;default: //@todobreak;}className = mono_class_get_name(elementClass);}break;case MONO_TYPE_STRING:{MonoObject* value = mono_field_get_value_object(mono_domain_get(), field, object);MonoString* valueString = (MonoString*)value;const char* valueCStr = mono_string_to_utf8(valueString);printf("%s\n", valueCStr);}break;default:{MonoObject* value = mono_field_get_value_object(mono_domain_get(), field, object);ListFields(value);}break;}}--depth;}

  输出:
  

  [TestClass]        testBool : false        testInt : 1234        testFloat : 0.234100        testString : hello        boolArray : true false false true        position : [Vector3]                x : 100.000000                y : 100.000000                z : 0.000000

  
  
  

C#脚本实践(三): 集成到游戏