边界框和多维数据集在其构造函数中都有一些参数
部首:
#ifndef WALL_H
#define WALL_H
#include "cube.h"
#include "BoundingBox.h"
class Wall
{
private:
Cube* cube;
BoundingBox* boundingBox;
public:
Wall(D3DXVECTOR3 min, D3DXVECTOR3 max);
~Wall();
void Draw(D3DXMATRIX matView, D3DXMATRIX matProjection);
};
#endif
来源:
#include "Wall.h"
Wall::Wall(D3DXVECTOR3 min, D3DXVECTOR3 max)
{
cube = new Cube(D3DXCOLOR(255, 20, 20, 255), min, max);
boundingBox = new BoundingBox(min, max);
}
void Wall::Draw(D3DXMATRIX matView, D3DXMATRIX matProjection)
{
cube->Draw(matView, matProjection);
}
Wall::~Wall()
{
delete cube;
delete boundingBox;
}
我的问题是,如何修改这些类,以便cube和boundingBox不是指针而只是实例?提前谢谢。
答案 0 :(得分:2)
非常简单。就像这样:
#ifndef WALL_H
#define WALL_H
#include "cube.h"
#include "BoundingBox.h"
class Wall
{
private:
Cube cube;
BoundingBox boundingBox;
public:
Wall(D3DXVECTOR3 min, D3DXVECTOR3 max);
void Draw(D3DXMATRIX matView, D3DXMATRIX matProjection);
};
#endif
源:
#include "Wall.h"
Wall::Wall(D3DXVECTOR3 min, D3DXVECTOR3 max)
:cube(D3DXCOLOR(255, 20, 20, 255), min, max)
,boundingBox(min, max)
{
}
void Wall::Draw(D3DXMATRIX matView, D3DXMATRIX matProjection)
{
cube.Draw(matView, matProjection);
}
答案 1 :(得分:0)
生成cube
和boundingBox
常规(非指针)类成员,然后使用初始化列表为它们调用适当的构造函数,例如
Wall::Wall(D3DXVECTOR3 min, D3DXVECTOR3 max) :
cube(D3DXCOLOR(255, 20, 20, 255), min, max),
boundingBox(min, max)
{
// nothing
}
答案 2 :(得分:0)
首先,当您使用指针时,这是错误的:boundingBox = BoundingBox(min, max);
new
之前应该有BoundingBox
。
您可以简单地调整类中属性的声明:
class Wall
{
private:
Cube cube;
BoundingBox boundingBox;
public:
Wall(D3DXVECTOR3 min, D3DXVECTOR3 max);
~Wall();
void Draw(D3DXMATRIX matView, D3DXMATRIX matProjection);
};
现在你调整你的CTOR:
Wall::Wall(D3DXVECTOR3 min, D3DXVECTOR3 max) : cube(D3DXCOLOR(255, 20, 20, 255), min, max), boundingBox(min, max)
{ }