windows C++ 错误 1 错误 C2227：'->keyPress' 的左侧必须指向类/结构/联合/泛型类型
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C++ Error 1 error C2227: left of '->keyPress' must point to class/struct/union/generic type
提问by Blackelfwolf
Hi I am having trouble with my code. I got error C2227.
嗨，我的代码有问题。我收到错误 C2227。
My code:
我的代码：
Game.h
游戏.h
#ifndef GAME_H
#define GAME_H
#include "drawEngine.h"
#include "Sprite.h"
class Runner
{
public:
bool run();
Runner(){};
protected:
bool getInput(char *c);
void timerUpdate();
private:
int *gamer;
double frameCount;
double startTime;
double lastTime;
int posX;
drawEngine drawArea;
};
#endif
Game.cpp
游戏.cpp
#include "Game.h"
#include <conio.h>
#include <iostream>
#include "drawEngine.h"
#include "Character.h"
#include <windows.h>
using namespace std;
//this will give ME 32 fps
#define GAME_SPEED 25.33
bool Runner::run()
{
drawArea.createSprite(0, '$');
gamer; new Character(&drawArea, 0);
char key = ' ';
startTime = timeGetTime();
frameCount = 0;
lastTime = 0;
posX = 0;
while (key != 'q')
{
while(!getInput(&key))
{
timerUpdate();
}
gamer->keyPress(key);
//cout << "Here's what you pressed: " << key << endl;
}
delete gamer;
cout << frameCount / ((timeGetTime() - startTime) / 100) << " fps " << endl;
cout << "Game Over" << endl;
return true;
}
bool Runner::getInput(char *c)
{
if (kbhit())
{
*c = getch();
return true;
}
}
void Runner::timerUpdate()
{
double currentTime = timeGetTime() - lastTime;
if (currentTime < GAME_SPEED)
return;
frameCount++;
lastTime = timeGetTime();
}
I've never seen this before. I've looked everywhere for an answer but they don't work with my code. I've got other code too that belongs to the same project which I didn't post.
我以前从未见过这个。我到处寻找答案，但它们不适用于我的代码。我也有其他代码属于我没有发布的同一个项目。
采纳答案by Rob Agar
Change
改变
int *gamer;
to
到
Character* gamer;
and
和
gamer; new Character(&drawArea, 0);
to
到
gamer = new Character(&drawArea, 0);
回答by templatetypedef
I think the problem is that you've defined gameras
我认为问题在于你已经定义gamer为
int *gamer;
So when you write
所以当你写
gamer->keyPress(key);
You're trying to call a member function on an int, which is not legal.
您试图在 上调用成员函数int，这是不合法的。
Are you sure you want gamerto be an int *? That seems incorrect.
您确定要gamer成为int *吗？那似乎不正确。
