使用手機(jī)C4droid編譯器的SDL2庫(kù)寫(xiě)的打飛機(jī) （水平很有限，僅僅是基本實(shí)現(xiàn)能玩） 希望可以和大家一起學(xué)習(xí)進(jìn)步

敵機(jī)

本機(jī)

子彈 這段代碼復(fù)制下來(lái)就能用，圖片素材都在上面，字體順便網(wǎng)上下載 #include #include #include #include #include #include #define WIDTH 1000 #define HEIGHT 2000 #define ERROR_FONT_SIZOF 80 //字體大小 #define FRAMERATE 60 //幀率 #define BULLET_SPEED 5 //子彈速度 #define ENEMY_SPEED 3 //敵機(jī)速度 #define FONT_NANE "/storage/emulated/0/1/resource//ttf/15.ttf" #define PLANE_FILE "/storage/emulated/0/1/resource/aircraft.png" #define BULLET_FILE "/storage/emulated/0/1/resource/bullet.png" #define ENEMY_FILE "/storage/emulated/0/1/resource/enemy.png" //上面的路徑自己修改自己手機(jī)圖片的路徑就好 using namespace std; SDL_Window *window; SDL_Renderer *renderer; TTF_Font *font = NULL; SDL_bool move_no = SDL_FALSE; bool init(); void showvalue(string a, int g, int x, int y); void close(); class plane //飛機(jī)類 { ?public: plane(); SDL_Texture *img; SDL_Surface *simg; int planew; int planeh; SDL_Rect imgr; SDL_Rect srcr; int mouseplane(SDL_Event *event); SDL_Rect &draw(); ~plane(); }; class bullet //子彈類 { ?public: bullet(); SDL_Texture *img; SDL_Surface *simg; SDL_Rect imgr; SDL_Rect srcr; bullet *last; bullet *next; bool show; void move(SDL_Rect rect); int bulletw; int bulleth; SDL_Rect *returect(); void draw(int y); ~bullet(); }; class enemy //敵機(jī)類 { ?public: enemy(); SDL_Texture *img; SDL_Surface *simg; SDL_Rect imgr; SDL_Rect srcr; enemy *last; enemy *next; bool show; SDL_Rect *returect(); int enemyw; int enemyh; SDL_Rect &draw(int y); ~enemy(); }; int main(int argc, char *argv[]) { init(); ?//初始化函數(shù) plane plane1; //飛機(jī)對(duì)象 //這里用指針圓形鏈表創(chuàng)建子彈和敵機(jī) bullet *butemp = new bullet; bullet *butip2, *butip; butip = butemp; butemp->srcr.y = HEIGHT - 50; butemp->next = butemp; butemp->last = butemp; // enemy *entemp = new enemy; enemy *entip2 = new enemy; entip2->srcr.y = 50; enemy *entip = entemp; entip2->next = entemp; entip2->last = entemp; entemp->next = entip2; entemp->last = entip2; // int i = 0; ??//幀數(shù) int grade = 0; //分?jǐn)?shù) int tt = 0; while (1) { long begin = SDL_GetTicks(); //測(cè)時(shí)間開(kāi)點(diǎn) SDL_SetRenderDrawColor(renderer, 55, 55, 55, 255); SDL_RenderClear(renderer); //以上面的顏色清屏，分別是R.G.B.α透明 SDL_Rect bullet_rect; bullet_rect = plane1.draw(); //創(chuàng)建子彈鏈 if (i % 40 == 1) //每到這里往鏈表里面塞一個(gè)對(duì)象 { butemp = butip; butip = new bullet; butip->next = butemp->next; butip->last = butemp; butemp->next->last = butip; butemp->next = butip; butip->move(bullet_rect); //子彈的初始位置等于當(dāng)前本機(jī)的位置 } butip2 = butip; do { butip->draw(5); if (butip->srcr.y < -400) //判斷是否到達(dá)邊界,這里設(shè)置的比較遠(yuǎn)是因?yàn)椴荒茏屚瑫r(shí)只能存在一個(gè)子彈 { butemp = butip; butip->last->next = butip->next; butip->next->last = butip->last; butip = butip->last; butemp->~bullet(); free(butemp); butemp = NULL; } butip = butip->next; } while (butip != butip2); // //創(chuàng)建敵機(jī)鏈 if (i % (60 - (i / 100)) == 1)//敵機(jī)的創(chuàng)建速度跟隨幀率 { entip = entip2->next; entemp = new enemy; entip2->next = entemp; entip->last = entemp; entemp->next = entip; entemp->last = entip2; entip = entemp; } entip2 = entip; do { entip->draw(ENEMY_SPEED + i / 800);//幀數(shù)每增加800個(gè)，速度加1 if (entip->srcr.y > HEIGHT) //判斷是否到達(dá)邊界 { entemp = entip; entip->last->next = entip->next; entip->next->last = entip->last; entip = entip->last; entemp->~enemy(); free(entemp); entemp = NULL; } entip = entip->next; } while (entip != entip2); ///////* butip2 = butip; entip2 = entip; do { do { //判斷是否接觸 if (SDL_HasIntersection(entip->returect(), butip->returect())) { //showvalue("jz", entip->srcr.y, 0, 300); butip->show = false; //這里不刪除，發(fā)現(xiàn)總會(huì)刪除標(biāo)記指針，索性直接這個(gè)鏈元素直接隱藏， entip->show = false; //并且上面的判斷函數(shù)里面的返回該鏈對(duì)象Rect的函數(shù)都返回一個(gè)固定框，確保不會(huì)相交 grade++; } entip = entip->next; } while (entip != entip2); butip = butip->next; } while (butip != butip2); showvalue("grade:", grade, 0, 100); i++; showvalue("zhen", i, 0, 500); int bb = 0; do //循環(huán)判斷敵機(jī)與本機(jī)是否接觸，但這里使用圖片的大小方塊，判定距離有點(diǎn)大 { if (SDL_HasIntersection(&(plane1.srcr), entip->returect())) { showvalue("jz", entip->srcr.y, 0, 300); bb = 1; break; } entip = entip->next; } while (entip != entip2); if (bb) { break; } SDL_RenderPresent(renderer); ////////// SDL_Event event; while (SDL_PollEvent(&event)) { switch (event.type) { case SDL_MOUSEMOTION:; case SDL_MOUSEBUTTONDOWN:; case SDL_MOUSEBUTTONUP: plane1.mouseplane(&event); break; case SDL_QUIT: return 0; } } //////*/ long current = SDL_GetTicks(); //測(cè)時(shí)間結(jié)束點(diǎn) long cost = current - begin; long frame = 1000 / FRAMERATE; long delay = frame - cost; if (delay > 0) //通過(guò)上面的來(lái)計(jì)算一幀的時(shí)間。 { SDL_Delay(delay); } } showvalue("beybey", 0, WIDTH / 3, HEIGHT / 2); SDL_RenderPresent(renderer); SDL_Delay(2000); close(); return 0; } bool init() { // 初始化SDL if (SDL_Init(SDL_INIT_VIDEO) < 0) { std::cout << "SDL初始化失敗。SDL錯(cuò)誤：" << SDL_GetError() << std::endl; return false; } // 創(chuàng)建窗口 window = SDL_CreateWindow("SDL Font Rendering", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, WIDTH, HEIGHT, SDL_WINDOW_SHOWN); if (window == NULL) { std::cout << "窗口創(chuàng)建失敗。SDL錯(cuò)誤：" << SDL_GetError() << std::endl; return false; } // 創(chuàng)建渲染器 renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC); if (renderer == NULL) { std::cout << "渲染器創(chuàng)建失敗。SDL錯(cuò)誤：" << SDL_GetError() << std::endl; return false; } // 設(shè)置渲染器繪制顏色為白色 SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF); // 初始化SDL_ttf if (TTF_Init() == -1) { std::cout << "SDL_ttf初始化失敗。SDL_ttf錯(cuò)誤：" << TTF_GetError() << std::endl; return false; } font = TTF_OpenFont(FONT_NANE, ERROR_FONT_SIZOF); if (font == NULL) { std::cout << "字體加載失敗。TTF錯(cuò)誤：" << TTF_GetError() << std::endl; return false; } return true; } void showvalue(string a, int g, int x = 100, int y = 100) //這是一個(gè)顯示字符的函數(shù) { char yy[16]; sprintf(yy, "%s:%d", a.c_str(), g); SDL_Color color = {255, 0, 0, 0}; SDL_Surface *fontsurface = TTF_RenderText_Solid(font, yy, color); SDL_Texture *fontTexture = SDL_CreateTextureFromSurface(renderer, fontsurface); SDL_Rect textRect; textRect.x = x; textRect.y = y; textRect.w = fontsurface->w; textRect.h = fontsurface->h; SDL_FreeSurface(fontsurface); SDL_RenderCopy(renderer, fontTexture, NULL, &textRect); SDL_DestroyTexture(fontTexture); } void close() { // 釋放字體資源 TTF_CloseFont(font); font = NULL; // 銷毀渲染器和窗口 SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); renderer = NULL; window = NULL; // 退出SDL_ttf TTF_Quit(); // 退出SDL SDL_Quit(); } plane::plane() //飛機(jī)類的構(gòu)造函數(shù) { this->img = IMG_LoadTexture(renderer, PLANE_FILE); if (this->img == NULL) { SDL_Log("圖片加載失敗:%s", SDL_GetError()); return; } this->simg = IMG_Load(PLANE_FILE); if (this->simg == NULL) { SDL_Log("圖片加載失敗:%s", SDL_GetError()); return; }; this->planew = WIDTH / 5; //是圖像大小為屏幕寬度的1/5 this->planeh = WIDTH / 5; //(int)( (float)(planew) /(float)(this->simg->w) * (float)(this->simg->h)); this->imgr = {0, 0, (this->simg->w), (this->simg->h)}; this->srcr = {WIDTH / 2 - planew / 2, HEIGHT - planeh * 2, planew, planeh}; } int plane::mouseplane(SDL_Event *event) ////把鼠標(biāo)的位置傳給圖像方塊 { SDL_Point mousep = {event->button.x, event->button.y}; switch (event->type) { case SDL_MOUSEMOTION: { if (move_no == SDL_TRUE) //按下且移動(dòng)鼠標(biāo)時(shí)才能移動(dòng) { showvalue("1", mousep.x, 0, 0); this->srcr.x = event->button.x - this->planew / 2; this->srcr.y = event->button.y - this->planeh / 2; move_no = SDL_TRUE; return 0; } break; } case SDL_MOUSEBUTTONDOWN: { if (SDL_PointInRect(&mousep, &(this->srcr))) //判斷鼠標(biāo)按下的位置是不是在圖像的上 { showvalue("down", 1, 0, 100); move_no = SDL_TRUE; //在圖像上按下了鼠標(biāo) return 0; } break; } case SDL_MOUSEBUTTONUP: { move_no = SDL_FALSE; //松開(kāi)鼠標(biāo)停止移動(dòng)。 return 0; break; } default: break; } return 0; } SDL_Rect &plane::draw() { SDL_RenderCopy(renderer, this->img, &(this->imgr), &(this->srcr)); return this->srcr; } plane::~plane() { SDL_DestroyTexture(this->img); SDL_FreeSurface(this->simg); }; bullet::bullet() { this->img = IMG_LoadTexture(renderer, BULLET_FILE); if (this->img == NULL) { SDL_Log("圖片加載失敗:%s", SDL_GetError()); return; } this->simg = IMG_Load(BULLET_FILE); if (this->simg == NULL) { SDL_Log("圖片加載失敗:%s", SDL_GetError()); return; }; this->bulletw = WIDTH / 30; //根據(jù)屏幕寬度設(shè)置子彈的大小 this->bulleth = WIDTH / 18; this->show = true; //默認(rèn)顯示子彈 this->imgr = {0, 0, (this->simg->w), (this->simg->h)}; this->srcr = {WIDTH / 2, HEIGHT - 100, bulletw, bulleth}; } void bullet::move(SDL_Rect rect) //鼠標(biāo)位置轉(zhuǎn)換成子彈的位置。 { this->srcr.x = rect.x + rect.w / 2 - this->srcr.w / 2; this->srcr.y = rect.y; } void bullet::draw(int y) //顯示子彈，并按照傳入的數(shù)值每幀移動(dòng)。 { this->srcr.y = this->srcr.y - y; if (this->show) { SDL_RenderCopy(renderer, this->img, &(this->imgr), &(this->srcr)); } return; } SDL_Rect *bullet::returect() { if (this->show) { return &(this->srcr); //如果依舊沒(méi)有結(jié)束，始終是判斷為顯示，則輸出該方塊的位置 } else { SDL_Rect temp = {0, 3, 0, 0}; //如果接觸了，位置始終是在這個(gè)點(diǎn)。 return &temp; } } bullet::~bullet() //子彈類的析構(gòu)函數(shù) { SDL_DestroyTexture(this->img); SDL_FreeSurface(this->simg); }; enemy::enemy() //敵機(jī)類的構(gòu)造函數(shù)。 { this->img = IMG_LoadTexture(renderer, ENEMY_FILE); if (this->img == NULL) { SDL_Log("圖片加載失敗:%s", SDL_GetError()); return; } this->simg = IMG_Load(ENEMY_FILE); if (this->simg == NULL) { SDL_Log("圖片加載失敗:%s", SDL_GetError()); return; }; this->enemyw = WIDTH / 6; //按屏幕寬度的比值顯示敵機(jī) this->enemyh = WIDTH / 6; this->show = true; //srand(time(0)); //(int)( (float)(planew) /(float)(this->simg->w) * (float)(this->simg->h)); this->imgr = {0, 0, (this->simg->w), (this->simg->h)}; this->srcr = {(rand() % (WIDTH / this->enemyw)) * this->enemyw, -(this->enemyh), this->enemyw, this->enemyh}; } SDL_Rect &enemy::draw(int y) { this->srcr.y = this->srcr.y + y; if (this->show) { SDL_RenderCopy(renderer, this->img, &(this->imgr), &(this->srcr)); } return this->srcr; } SDL_Rect *enemy::returect() { if (this->show) //如果你是沒(méi)有接觸顯示，則輸出敵機(jī)的位置。 { return &(this->srcr); } else { SDL_Rect temp = {0, 0, 0, 0}; //如果接觸了判斷不顯示，則始終輸出該位置。 return &temp; } } enemy::~enemy() { SDL_DestroyTexture(this->img); SDL_FreeSurface(this->simg); }; //程序?qū)懙煤荃磕_，我也僅僅是游戲愛(ài)好者，沒(méi)有電腦，不足之處請(qǐng)懇請(qǐng)大家積極指導(dǎo)。