c++ - SDL 游戏在加载二级时卡住

Question

我的游戏的第一个关卡可以正确构建和播放，当我更改源文件以使其首先加载时，我的第二个关卡也是如此。但是，当我完成第一关并加载第二关时，游戏卡住了。具体来说，所有图像(字符、背景等)都可以正常渲染，但它们无法移动，并且控件没有任何响应(但是，调试确实显示按键仍在注册中)。

我认为最有可能导致问题的文件是我的 GameScreenManager.ccp。

#include "GameScreenManager.h"
#include "GameScreenLevel1.h"
#include "GameScreenLevel2.h"
#include "GameScreen.h"

GameScreenManager::GameScreenManager(SDL_Renderer* renderer, SCREENS startScreen)
{
    mRenderer = renderer;
    mCurrentScreen = NULL;

    //Ensure first screen is set up.
    ChangeScreen(startScreen);
}

GameScreenManager::~GameScreenManager()
{
    mRenderer = NULL;
    delete mCurrentScreen;
    mCurrentScreen = NULL;
}

void GameScreenManager::Update(float deltaTime, SDL_Event e)
{
    if(mCurrentScreen != NULL)
    {
        mCurrentScreen->Update(deltaTime, e);
    }

    //Check if Level 1 is completed
    CompleteCheck();
}

void GameScreenManager::Render()
{
    if(mCurrentScreen != NULL)
    {
        mCurrentScreen->Render();
    }
}

void GameScreenManager::ChangeScreen(SCREENS startScreen)
{
    //Clear up the old screen.
    if(mCurrentScreen != NULL)
    {
        delete mCurrentScreen;
    }
    GameScreenLevel1* tempScreen;
    GameScreenLevel2* tempScreen2;
    switch(startScreen)
    {
        case SCREEN_LEVEL1:
            tempScreen = new GameScreenLevel1(mRenderer);
            mCurrentScreen = (GameScreen*)tempScreen;
            tempScreen = NULL;
        break;
        case SCREEN_LEVEL2:
            tempScreen2 = new GameScreenLevel2(mRenderer);
            mCurrentScreen = (GameScreen*)tempScreen2;
            tempScreen2 = NULL;
        break;
    }
}

void GameScreenManager::CompleteCheck()
{
    if(GameScreenLevel1::complete)
    {
        ChangeScreen(SCREEN_LEVEL2);
    }
}

有人认为他们可以发现问题吗？

Answer 1

if(GameScreenLevel1::complete)
    {
        ChangeScreen(SCREEN_LEVEL2);
    }

似乎总是如此。您需要在加载第二个级别后将其设置为 false。