程序已触发断点，0x77239D11 (ntdll.dll) 处未处理的异常：0xC0000374：堆已损坏（参数：0x7726D8D0）
program has triggered a breakpoint, Unhandled exception at 0x77239D11 (ntdll.dll): 0xC0000374: A heap has been corrupted (parameters: 0x7726D8D0)
了解实体组件架构的请跳过解释！
解释：
好的，所以我正在尝试创建一个实体组件系统，但我遇到了一个非常奇怪的问题，直到现在才发生过，基本上我有一个包含一些变量的实体 class （如名称、标签、id）和一个指针向量，它跟踪添加到实体的所有组件，即实体 class，所有组件都派生自组件 class，它有一个类型（char*），以及启动、更新等虚函数，etc.This 是您创建组件的方式：
#pragma once
class printcomponent : public Component {
printcomponent() : Component("printcomponent"){} // the printcomponent constructor derives from the component constructor which takes a char* as parameter, and sets the component's type to that char*
void Start(){
cout << "This is printed on start" << endl;
}
void Update(){
cout << "This gets printed every frame" << endl;
}
~printcomponent();//destructor
}
我的问题：
好吧，只有当我尝试获取 Rigidbody2d 类型的组件时，我的问题才会出现，这是 "PhysicalObject.cpp"，physicalobject 是一种实体类型，它已经有一些组件，比如预制件，所以我不不必总是向实体类型添加相同的组件，例如物理对象：
#include "stdafx.h"
#include "Public.h" // all the public variables are in here, and declared in Public.cpp
#include "PhysicalObject.h"
PhysicalObject::PhysicalObject(float boxwidth, float boxheight, float gscale, bool fixedr, float nDnsity, float nFricton, string name, string tag, bool isactive, bool isstatic) : Entity(name, tag, isactive, isstatic) // so basically the constructor creates an entity
{
this->AddComponent<Transfrm>(b2Vec2(0.f, 0.f), 0.f, b2Vec2(1.f, 1.f)); // i add a transform component
this->AddComponent<RigidBody2D>(gscale, fixedr); // i add a rigidbody2d component, there is no problem when adding components
this->AddComponent<SprtRend>(this); // again spriterenderer component
trans = this->GetComponent<Transfrm>(); // okay so i have 2 variables for easily accessing specific components, i have one trans for transform, and one rigidb for rigidbody2d, basically calling this instead of getting component is much more efficient !
rigidb = this->GetComponent<RigidBody2D>(); // this is the line causing me problems, the previous line doesn't cause any problem, but this causes an Unhandled exception, in the function GetComponent of Entity.h
}
错误指向 "entity.h" getcomponent 函数
Entity.h:
// 添加组件、构造函数等函数。
template <typename T>
T* GetComponent() {
T t; // so basically this function creates a new given type T and loops through all the components until it finds a matching type
for (unsigned i = 0; i < AllComponents.size(); i++) {
if (AllComponents.at(i)->Type == t.Type) { // when debugging in this line, in the 'autos' window, it shows the type as "RigidBody2D", which is fine, but after i continue to the other line, it gives me the unhandled exception and the type of 't' is something like: "/x" and some numbers, which makes no sense, and doesn't occur when getting other components.
return dynamic_cast<T*>(AllComponents.at(i));
break;
}
}
cout << "Entity: " << Name << " Does Not Have Component of Type: " << t.Type << endl;
}
// desctructor
最后是RigidBody2d.h文件，里面有rigidbody组件，和其他组件没什么区别，但是还是报错
RigidBody2D.h: // 我将展示所有代码，因为我不确定是什么导致了这个问题，所以如果 post 变得非常长，我深表歉意，另请注意，我已经在我的引擎中实现了 box2d 库，因此其中有一些变量和函数，我认为它们不会导致任何错误。
#pragma once
#include "Component.h"
#include "Transfrm.h" // i need the transform component for the rigidbody because it contains a position, rotation, etc.
class RigidBody2D : public Component
{
public:
b2BodyDef bodyDef;
Transfrm* Trans;
b2Body* Body;
float* GScale; // this pointer needs to point to the gravity scale variable of body
bool* FreezeRot; // this pointer needs to point to the freeze rotation variable of body
bool IsKinematic;
void SetGScale(float newgs){
*GScale = newgs;
}
void SetFreezeRot(bool newfr) {
*FreezeRot = newfr;
}
void SetIsKinetic(bool newisk) {
IsKinematic = newisk;
}
RigidBody2D(float gscale = 1.f, bool fixedr = false); // constructor, before i used 2 constructors one with no parameters, but that caused me errors, because the compilier didn't know which constructor to use since they were the same(didn't require parameters)
~RigidBody2D();
};
最后 RigidBody2D.cpp:
#include "stdafx.h"
#include "Public.h"
#include "RigidBody2D.h"
RigidBody2D::RigidBody2D(float gscale, bool fixedr) : Component("RigidBody2D")
{
Trans = new Transfrm(b2Vec2(0.f, 0.f), 0.f, b2Vec2(1.f, 1.f));
bodyDef.type = b2_dynamicBody;
bodyDef.position.Set(Trans->Position.x, Trans->Position.y);
bodyDef.gravityScale = gscale;
bodyDef.fixedRotation = fixedr;
GScale = &bodyDef.gravityScale;
FreezeRot = &bodyDef.fixedRotation;
Body = CurrentPhysicsWorld->CreateBody(&bodyDef);
}
RigidBody2D::~RigidBody2D() {
delete Trans;
delete GScale;
delete FreezeRot;
CurrentPhysicsWorld->DestroyBody(Body);
};
我对巨大的 post 感到非常抱歉，它花了我大约 2 个小时来写，但我已经搜索和调试了 3 天，但仍然找不到解决方案，因为我从来没有遇到过这样的问题，在此先感谢。
对我来说这部分看起来很奇怪：
RigidBody2D::RigidBody2D(float gscale, bool fixedr) : Component("RigidBody2D")
^^^^^^^ gscale is a float
{
Trans = new Transfrm(b2Vec2(0.f, 0.f), 0.f, b2Vec2(1.f, 1.f));
bodyDef.type = b2_dynamicBody;
bodyDef.position.Set(Trans->Position.x, Trans->Position.y);
bodyDef.gravityScale = gscale;
^^^^
Used for initialization of bodyDef.gravityScale
bodyDef.fixedRotation = fixedr;
GScale = &bodyDef.gravityScale;
^^^^^^
Pointer to bodyDef.gravityScale
FreezeRot = &bodyDef.fixedRotation;
Body = CurrentPhysicsWorld->CreateBody(&bodyDef);
}
RigidBody2D::~RigidBody2D() {
delete Trans;
delete GScale;
^^^^^^^^
Delete of bodyDef member which wasn't created by new
delete FreezeRot;
CurrentPhysicsWorld->DestroyBody(Body);
};
所以在我看来，您正在尝试 delete 并非由 new
创建的内容
一些突出的事情：
GetComponent 并不总是 return 任何东西，这很容易导致未定义的行为。
在 ~RigidBody2D() 中，您正在 delete 创建两个对象 – GScale 和 FreezeRot – 它们不是使用 new 创建的，但属于通过 bodyDef.
当然，这是未定义的。
这两个是否足以解决你的问题很难猜测。
根据您发布的代码，我怀疑可能还有许多其他类似问题需要查找。
我认为问题在于您如何手动删除 GScale 和 FreezeRot。在 GetComponent 中，您创建了一个临时对象 T，它将在函数结束时超出范围。如果您搜索 RigidBody 类型，它的析构函数将在函数完成时调用，删除一些指针，应该留给 Box2D 管理。
作为解决方法，我建议删除代码帽以删除这 2 个成员，并为每种类型创建一个名为 Type 的静态成员，以便您可以执行以下操作：
T::Type
不必创建临时对象：
T t;
T.type
了解实体组件架构的请跳过解释！
解释：
好的，所以我正在尝试创建一个实体组件系统，但我遇到了一个非常奇怪的问题，直到现在才发生过，基本上我有一个包含一些变量的实体 class （如名称、标签、id）和一个指针向量，它跟踪添加到实体的所有组件，即实体 class，所有组件都派生自组件 class，它有一个类型（char*），以及启动、更新等虚函数，etc.This 是您创建组件的方式：
#pragma once
class printcomponent : public Component {
printcomponent() : Component("printcomponent"){} // the printcomponent constructor derives from the component constructor which takes a char* as parameter, and sets the component's type to that char*
void Start(){
cout << "This is printed on start" << endl;
}
void Update(){
cout << "This gets printed every frame" << endl;
}
~printcomponent();//destructor
}
我的问题：
好吧，只有当我尝试获取 Rigidbody2d 类型的组件时，我的问题才会出现，这是 "PhysicalObject.cpp"，physicalobject 是一种实体类型，它已经有一些组件，比如预制件，所以我不不必总是向实体类型添加相同的组件，例如物理对象：
#include "stdafx.h"
#include "Public.h" // all the public variables are in here, and declared in Public.cpp
#include "PhysicalObject.h"
PhysicalObject::PhysicalObject(float boxwidth, float boxheight, float gscale, bool fixedr, float nDnsity, float nFricton, string name, string tag, bool isactive, bool isstatic) : Entity(name, tag, isactive, isstatic) // so basically the constructor creates an entity
{
this->AddComponent<Transfrm>(b2Vec2(0.f, 0.f), 0.f, b2Vec2(1.f, 1.f)); // i add a transform component
this->AddComponent<RigidBody2D>(gscale, fixedr); // i add a rigidbody2d component, there is no problem when adding components
this->AddComponent<SprtRend>(this); // again spriterenderer component
trans = this->GetComponent<Transfrm>(); // okay so i have 2 variables for easily accessing specific components, i have one trans for transform, and one rigidb for rigidbody2d, basically calling this instead of getting component is much more efficient !
rigidb = this->GetComponent<RigidBody2D>(); // this is the line causing me problems, the previous line doesn't cause any problem, but this causes an Unhandled exception, in the function GetComponent of Entity.h
}
错误指向 "entity.h" getcomponent 函数 Entity.h:
// 添加组件、构造函数等函数。
template <typename T>
T* GetComponent() {
T t; // so basically this function creates a new given type T and loops through all the components until it finds a matching type
for (unsigned i = 0; i < AllComponents.size(); i++) {
if (AllComponents.at(i)->Type == t.Type) { // when debugging in this line, in the 'autos' window, it shows the type as "RigidBody2D", which is fine, but after i continue to the other line, it gives me the unhandled exception and the type of 't' is something like: "/x" and some numbers, which makes no sense, and doesn't occur when getting other components.
return dynamic_cast<T*>(AllComponents.at(i));
break;
}
}
cout << "Entity: " << Name << " Does Not Have Component of Type: " << t.Type << endl;
}
// desctructor
最后是RigidBody2d.h文件，里面有rigidbody组件，和其他组件没什么区别，但是还是报错
RigidBody2D.h: // 我将展示所有代码，因为我不确定是什么导致了这个问题，所以如果 post 变得非常长，我深表歉意，另请注意，我已经在我的引擎中实现了 box2d 库，因此其中有一些变量和函数，我认为它们不会导致任何错误。
#pragma once
#include "Component.h"
#include "Transfrm.h" // i need the transform component for the rigidbody because it contains a position, rotation, etc.
class RigidBody2D : public Component
{
public:
b2BodyDef bodyDef;
Transfrm* Trans;
b2Body* Body;
float* GScale; // this pointer needs to point to the gravity scale variable of body
bool* FreezeRot; // this pointer needs to point to the freeze rotation variable of body
bool IsKinematic;
void SetGScale(float newgs){
*GScale = newgs;
}
void SetFreezeRot(bool newfr) {
*FreezeRot = newfr;
}
void SetIsKinetic(bool newisk) {
IsKinematic = newisk;
}
RigidBody2D(float gscale = 1.f, bool fixedr = false); // constructor, before i used 2 constructors one with no parameters, but that caused me errors, because the compilier didn't know which constructor to use since they were the same(didn't require parameters)
~RigidBody2D();
};
最后 RigidBody2D.cpp:
#include "stdafx.h"
#include "Public.h"
#include "RigidBody2D.h"
RigidBody2D::RigidBody2D(float gscale, bool fixedr) : Component("RigidBody2D")
{
Trans = new Transfrm(b2Vec2(0.f, 0.f), 0.f, b2Vec2(1.f, 1.f));
bodyDef.type = b2_dynamicBody;
bodyDef.position.Set(Trans->Position.x, Trans->Position.y);
bodyDef.gravityScale = gscale;
bodyDef.fixedRotation = fixedr;
GScale = &bodyDef.gravityScale;
FreezeRot = &bodyDef.fixedRotation;
Body = CurrentPhysicsWorld->CreateBody(&bodyDef);
}
RigidBody2D::~RigidBody2D() {
delete Trans;
delete GScale;
delete FreezeRot;
CurrentPhysicsWorld->DestroyBody(Body);
};
我对巨大的 post 感到非常抱歉，它花了我大约 2 个小时来写，但我已经搜索和调试了 3 天，但仍然找不到解决方案，因为我从来没有遇到过这样的问题，在此先感谢。
对我来说这部分看起来很奇怪：
RigidBody2D::RigidBody2D(float gscale, bool fixedr) : Component("RigidBody2D")
^^^^^^^ gscale is a float
{
Trans = new Transfrm(b2Vec2(0.f, 0.f), 0.f, b2Vec2(1.f, 1.f));
bodyDef.type = b2_dynamicBody;
bodyDef.position.Set(Trans->Position.x, Trans->Position.y);
bodyDef.gravityScale = gscale;
^^^^
Used for initialization of bodyDef.gravityScale
bodyDef.fixedRotation = fixedr;
GScale = &bodyDef.gravityScale;
^^^^^^
Pointer to bodyDef.gravityScale
FreezeRot = &bodyDef.fixedRotation;
Body = CurrentPhysicsWorld->CreateBody(&bodyDef);
}
RigidBody2D::~RigidBody2D() {
delete Trans;
delete GScale;
^^^^^^^^
Delete of bodyDef member which wasn't created by new
delete FreezeRot;
CurrentPhysicsWorld->DestroyBody(Body);
};
所以在我看来，您正在尝试 delete 并非由 new
一些突出的事情：
GetComponent 并不总是 return 任何东西，这很容易导致未定义的行为。
在 ~RigidBody2D() 中，您正在 delete 创建两个对象 – GScale 和 FreezeRot – 它们不是使用 new 创建的，但属于通过 bodyDef.
当然，这是未定义的。
这两个是否足以解决你的问题很难猜测。
根据您发布的代码，我怀疑可能还有许多其他类似问题需要查找。
我认为问题在于您如何手动删除 GScale 和 FreezeRot。在 GetComponent 中，您创建了一个临时对象 T，它将在函数结束时超出范围。如果您搜索 RigidBody 类型，它的析构函数将在函数完成时调用，删除一些指针，应该留给 Box2D 管理。
作为解决方法，我建议删除代码帽以删除这 2 个成员，并为每种类型创建一个名为 Type 的静态成员，以便您可以执行以下操作：
T::Type
不必创建临时对象：
T t;
T.type