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我的引擎的構造函數用自己的指針(this)構造音頻,視頻和輸入對象。但是,當我調試時,我看到構造的enginePtr的所有類與調試器提供的值不同。這個指針由Object(this)設置!= this
當我在裏面窺視時,例如,我看到,pRender的enginePtr與引擎的值不同。他們大多數都設置爲NULL,這會導致渲染崩潰。
這裏是我的引擎構造:
cEngine::cEngine(int flag) {
if (!al_get_system_driver()) {
this->isRunning = true;
al_init();
// Uses DirectX by default, uncomment ALLEGRO_OPENGL for OpenGL.
if (flag == OPENGL_WINDOW || flag == OPENGL) al_set_new_display_flags(ALLEGRO_RESIZABLE | ALLEGRO_OPENGL);
else if (flag == DIRECTX_WINDOW || flag == DIRECTX) al_set_new_display_flags(ALLEGRO_RESIZABLE);
else if (flag == OPENGL_FULLSCREEN) al_set_new_display_flags(ALLEGRO_FULLSCREEN | ALLEGRO_OPENGL);
else if (flag == DIRECTX_FULLSCREEN) al_set_new_display_flags(ALLEGRO_FULLSCREEN);
this->display = createDisplay("Motherload C++", -1, -1, 640, 480);
srand((unsigned) time(0));
pCam = new cCam(this);
pIO = new cIO(this);
pMap = new cMap(this, setPoint(50, 50), setPoint(13, 20)); // 13, 20
pPlayer = new cPlayer(this);
pAudio = new cAudio(this);
pRender = new cRender(this);
pEvents = new cEvents(this);
}
}
cRender構造:
cRender::cRender(cEngine* pEngine) {
this->pPlayerLoc = pPlayerLoc;
this->BLACK = al_map_rgb(30, 100, 200);
this->needsRedraw = false;
this->pEngine = pEngine;
al_init_font_addon();
al_init_ttf_addon();
splitImages();
//this->font = al_load_font("C:/resource/gisha.ttf", 24, 0);
//this->img = al_load_bitmap("C:/resource/rock.png");
}
感謝
沒有什麼概念錯誤,你正在嘗試......必須是一個小的實現細節。你可以向我們展示這些類之一的構造函數嗎(cCam,CIO,cAudio或其他...?) – 2010-11-12 02:38:54
@Tony參見上面的編輯 – jmasterx 2010-11-12 02:40:40
這不應該編譯,'pReander = new cRender((this);'是語法上不可編譯 – dreamlax 2010-11-12 02:40:42