１. 關於linux curses庫，不多說，google下便知道，就像當年的TC下的視窗程式庫一樣

 2.  事情源於在chinaunix上看到了the4king在c/c++論壇上的帖子：

程式碼的編譯命令是:

#  gcc file.c  -lrt -lcurses

我的平臺是Ubuntu10.04

3.  先閱讀原始碼，瞭解其思想。

   該打字遊戲的實現思想大致如下：

   介面如下幾部分組成，topwin（也就是顯示字母下落動畫效果的視窗）,numwin(成績框，記錄輸入字元數及命中數)

   其它訊號處理倒是簡單，對應了'1'暫停，'2'退出等功能。

   主執行緒： 

   以字串darwscr代表整個topwin的輸出內容

   do{

   　　在最上面一行產生若干個字元(數量很少)。然後將新字串重寫回topwin，重新整理顯示

   　　呼叫changekey()，然後檢查checkkey()在location[]記錄的命中字元，並把當前命中位置置成'@'，把上次命中位置置成' '

   　　將topwin自第二行開始向下移動一行///注意這個地方沒有加鎖，有執行緒同步問題

   　}

   checkkey()執行緒：

   do{

        接收鍵盤輸入

         在當前darwscr裡，找出命中位置，並記錄到緩衝區中  //有執行緒同步問題

　}

4. 觀察其程式碼，發現一些不足之處

第一個地方，新增一個basewin，完全覆蓋原始主視窗，因為發現在不同的終端下，預設原始主視窗的背景不一致，現在用basewin來統一一下，這樣做有些移植性的意思哈。

首先，changekey()函式與函式之間用了不必要的訊號量，完全可以用函式呼叫來代替

其次，每交topwin下移一行（產生動畫效果）時，呼叫changekey()函式一次，實際上最多隻能處理一個input字元，效果就是如果某一行的字元數大於topwin的高度LINES，

那麼很悲劇，你無論鍵盤敲得多快，只能眼睜睜看著這一行落地而毫無辦法。而且原始碼裡只用了一個變數去儲存最近的命中字元，如果你輸入很快，後面就會覆蓋前面的。

解決辦法很簡單：

先建立輸入緩衝區，這裡用了一個迴圈佇列，長度為1000，客觀地講應該不會溢位。

接著，就是改動changekey()的stop()時間，把節省下來的時間用於迴圈讀緩衝區，爭取在有限的時間裡多處理幾個命中的字元。

最後，完成上面這些改動之後，編譯執行，緩衝區的效果是有了，可以在一次動畫效果之間命中多個字元，但問題又來了，發現顯示命中效果有問題，個別字元的命中效果產生了偏離，比如明明是第n行的第12個字元命中，卻顯示成了第n-行的第12個字元命中。檢查了下程式碼，發現是多執行緒的問題。原始碼在checkkey()裡檢查命中字元，並把其位置記錄到緩衝區裡，問題是，如果checkkey()恰好發生在一次動畫效果之前，那麼由於隨後發生了動畫效果，剛剛在checkkey()裡記錄的命中位置就不準確了，於是需要在動畫效果的程式碼中檢查緩衝區，並修正已有資料的偏移。同時，應該保證checkkey()修改緩衝區的程式碼與動畫程式碼互斥。同一時刻只能有一個執行， 不然就混亂了！

可以通過增加訊號量控制來改進這個問題

checkkey()執行緒：

  迴圈接收鍵盤輸入

  訊號量P操作，進入臨界區

 　在當前darwscr裡，找出命中位置，並記錄到緩衝區中

  訊號量V操作，退出臨界區

主執行緒，對應地改動：

   sem_wait(&sem_location);

            動畫效果區程式碼

    sem_post(&sem_location);

  改動後的程式碼如下：

#include <unistd.h> #include <stdlib.h> #include <stdio.h> #include <string.h> #include <time.h> #include <sys/time.h> #include <curses.h> #include <pthread.h> #include <semaphore.h> #include <signal.h> /* 靜態視窗設定後可以關閉 動態視窗設定後不應該關閉，應該保持開啟狀態，使之長期有效 視窗建立後，如果沒有主動呼叫refresh()是不會出現的，所以想讓誰出現就呼叫對應的wrefresh(win) **/ void *checkkey (void *arg); void *changekey (void *arg); void *isover (void *arg); char *darwscr; char *basestr; WINDOW *a_win,*b_win,*c_win; WINDOW *topwin,*bottomwin, *pausewin,*overwin,*numwin, *basewin; pthread_t main_tid; sem_t sem_location, sem_lastlocation; int n=400000,FLAG=1,hited_num=0,typed_num=0; void releasewin() { free(darwscr); free(basestr); sem_destroy(&sem_location); sem_destroy(&sem_lastlocation); delwin(topwin);delwin(pausewin);delwin(numwin); delwin(overwin);endwin(); } void contin () { touchwin(topwin); wrefresh(topwin); } void paus () { touchwin(pausewin); wrefresh(pausewin); pause(); } void game_over () { touchwin(overwin);wrefresh(overwin); pause(); FLAG=0; return; } void stop (int usec) { struct timeval tv; tv.tv_sec=0; tv.tv_usec=usec; select(0,NULL,NULL,NULL,&tv); } int main () { int i,j,res,s=0; struct sigaction to_pause,to_continue,to_over; initscr(); noecho();cbreak();keypad(stdscr,TRUE);curs_set(0); clear(); refresh(); darwscr = (char*) calloc((LINES-2)*(COLS-15),1); basestr = (char*) calloc(LINES*COLS,1); if(darwscr==NULL || basestr==NULL) { perror("Malloc Failure");endwin();exit(1); } basewin = newwin(LINES,COLS,0,0); topwin=newwin(LINES-2,COLS-15,0,8); bottomwin=newwin(1,30, LINES-1,(COLS-30)/2); pausewin=newwin(1,COLS/2,LINES/2,COLS/4); overwin=newwin(3,COLS/2,LINES/2+1,COLS/4); numwin=newwin(1,9,LINES-1,COLS/2+18); if(topwin==NULL || pausewin==NULL || overwin==NULL || numwin==NULL || bottomwin==NULL) { perror("Create window Failure");endwin();exit(1); } if(!has_colors()) { perror("Devices not support colors"); delwin(topwin);delwin(pausewin);delwin(overwin); delwin(numwin);endwin();exit(1); } if(start_color()!=OK) { perror("Initialize Colors Failure"); delwin(topwin);delwin(pausewin);delwin(overwin); delwin(numwin);endwin();exit(1); } init_pair(1,COLOR_WHITE,COLOR_BLACK); init_pair(2,COLOR_GREEN, COLOR_RED); init_pair(3,COLOR_YELLOW, COLOR_BLUE); init_pair(4,COLOR_YELLOW, COLOR_BLUE); init_pair(5,COLOR_BLACK, COLOR_CYAN); //////////// wattron(basewin, COLOR_PAIR(2)); for(i=0;i<LINES;i++) { for(j=0; j<COLS; j++) if(j== 7 || j==COLS-7) *(basestr+i*(COLS) + j) = '+'; else *(basestr+i*(COLS) + j) = ' '; } mvwaddstr(basewin,0,0,basestr); wrefresh(basewin); wattron(topwin, COLOR_PAIR(5)); memset(darwscr,' ', (LINES-2)*(COLS-15)); mvwaddstr(topwin,0,0, darwscr); wrefresh(topwin); wattron(bottomwin,COLOR_PAIR(2)); mvwprintw(bottomwin,0,0,"%s","Press '1' to PAUSE,'2' to QUIT"); wrefresh(bottomwin); wattroff(bottomwin,COLOR_PAIR(2)); wattron(numwin,COLOR_PAIR(2)); mvwprintw(numwin,0,0,"[%3d/%-3d]",hited_num,typed_num); wrefresh(numwin); wattron(pausewin,COLOR_PAIR(2)); mvwprintw(pausewin,0,2,"%s","Press 'CTRL-C' to Continue."); wattroff(pausewin,COLOR_PAIR(2)); wattron(overwin,COLOR_PAIR(3)); for(i=0;i<3;i++) { for(j=0;j<COLS/2;j++) mvwaddch(overwin,i,j,' '); } wattroff(overwin,COLOR_PAIR(3)); wattron(overwin,COLOR_PAIR(4)); mvwprintw(overwin,1,COLS/4-4,"%s","GAME OVER"); mvwprintw(overwin,2,COLS/4-8,"%s","'CTRL-C' to QUIT"); wattroff(overwin,COLOR_PAIR(4)); to_pause.sa_handler=paus; sigemptyset(&to_pause.sa_mask); to_pause.sa_flags=0; sigaction(SIGUSR1,&to_pause,0); to_continue.sa_handler=contin; sigemptyset(&to_continue.sa_mask); to_continue.sa_flags=0; sigaction(SIGINT,&to_continue,0); to_over.sa_handler=game_over; sigemptyset(&to_over.sa_mask); to_over.sa_flags=0; sigaction(SIGUSR2,&to_over,0); ///////////////////////// main_tid=pthread_self(); pthread_t new_one; if(pthread_create(&new_one,NULL,checkkey,(void *)darwscr)) { perror("Thread Create Failure"); releasewin();exit(1); } if(sem_init(&sem_location,0,1)||sem_init(&sem_lastlocation,0,0)) { perror("Semaphore Initialize Failure"); releasewin();exit(1); } sleep(1); s=(int)time(NULL); while(FLAG) { s+=n/1000; srand(s); for(i=0;i<COLS-15;i++) { //1000的區間，0-994都是空，994-999列印字母 double tmp = rand(); int zone = abs((int)(tmp/(double)RAND_MAX*1000)); if(zone < 994) *(darwscr+i)=' '; else { zone = abs(tmp)%('z'-'a') + 'a'; *(darwscr+i) = (char) zone; } } mvwaddstr(topwin,0,0,darwscr); wrefresh(topwin); changekey(darwscr); ////下移一行,sem_location用於與checkkey() sem_wait(&sem_location); memmove(darwscr+COLS-15,darwscr,(LINES-3)*(COLS-15)); tuneLocation(); sem_post(&sem_location); mvwprintw(numwin,0,0,"[%3d/%-3d]",hited_num,typed_num); wrefresh(numwin); } releasewin(); exit(1); } /* 迴圈佇列：location[1000], 1000的長度客觀上講不會出現迴圈佇列滿的現象 checkkey 只進行入隊操作 影響tail changekey 只進行出隊操作 影響head head == tail 為空 */ #define QUEUE_LEN 1000 int location[1000], last_location[QUEUE_LEN], times=0; volatile int head = 0; volatile int tail = 0; void tuneLocation(){ int i=0; for(i=head; i!=tail; i=(i+1)%QUEUE_LEN) location[i] += COLS-15; } void *checkkey (void *arg) { int i,key; char *p=(char *)arg; while(1) { key=getch(); ++typed_num; if(key=='1') pthread_kill(main_tid,SIGUSR1); else if(key=='2') FLAG=0; else if(key>='a' && key<='z') { sem_wait(&sem_location); for(i=(LINES-2)*(COLS-15)-1;i>=0;i--) { if(*(p+i)==key) { location[(tail++)%QUEUE_LEN] = i; ++hited_num; break; } } sem_post(&sem_location); } } } void *changekey (void *arg) { const char space=' '; const char over='@'; char *p=(char *)arg; int m; int i,j,k,l,tmp_tail; ++times; if(times<30) n=400000; else if(times>=30 && times <60) n=350000; else if(times>=60 && times<100) n=300000; else if(times>=100 && times<150) n=250000; else if(times>=150 && times <220) n=200000; else n=150000; //stop(n/2) + stop(n/10)*8 stop(n/2); /////清除上次命中的字元‘＠’ for(l=0; last_location[l]!=0; l++) { *(p+last_location[l]) = space; last_location[l] = 0; } i=0,j=0; while(j<8) { tmp_tail = tail; while(head != tmp_tail) { *(p + location[head]) = over; last_location[i++] = location[head] + COLS - 15; head = (head+1)%QUEUE_LEN; } stop(n/10); j++; } for(m=(LINES-2)*(COLS-15)-1; m>=(LINES-3)*(COLS-15); m--) { if(*(p+m)>='a' && *(p+m)<='z') pthread_kill(main_tid,SIGUSR2); } } 

5.   在完成原打字遊戲的改進後，我想再增加功能，把打字遊戲變成單詞練習遊戲，就像一些打字練習的軟體一樣

　　基本思路是，生成一系列的小視窗，視窗有兩行，一行是單詞，隨機產生，一行空等待使用者輸入

　　動畫效果還是主執行緒實現，定時迴圈。

　　當用戶輸入的單詞完全匹配小視窗上的單詞時，視窗消失（不要delwin()，應該回收到一個pool中，以重複使用）

　　程式碼如下：

#include <unistd.h> #include <stdlib.h> #include <stdio.h> #include <string.h> #include <time.h> #include <sys/time.h> #include <curses.h> #include <pthread.h> #include <semaphore.h> #include <signal.h> #include <assert.h> /* 這個版本準備做一個單詞擊打遊戲 **/ ////////////////////////////////巨集定義區///////////////////// #define MAX_WORDS 10 #define TOP_WIDTH (COLS-15) #define TOP_HEIGHT (LINES-2) #define MOVE_WIDTH 10 #define MOVE_HEIGHT 2 #define OFFSET_MW 3 #define QUEUE_LEN 1000 ////////////////////////////////全域性變數///////////////////// char *topstr; char *basestr; char *movestr; WINDOW *a_win, *b_win, *c_win; WINDOW *topwin, *bottomwin, *pausewin,*overwin,*numwin, *basewin, *movewin; pthread_t main_tid; sem_t sem_keybuffer, sem_movequeue, sem_first; int FLAG=1, hited_num=0, typed_num=0; int keybuffer[QUEUE_LEN];//鍵盤輸入迴圈佇列 volatile int head = 0; volatile int tail = 0; int n=400000, times=0; //速度調節引數 /////////////////////////////////////////////////////////// void *receivekey (void *arg); void *checkMatch (void* one); void *isover (void *arg); /////////////////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////////////// typedef struct { WINDOW* win; int finish; int match_flag; int y; int x; int startx; int starty; char length; char word[100]; int index;//待匹配字元位置　0 ~~ (length-1) }MOVWIN; typedef struct { int length; MOVWIN* array[MAX_WORDS]; int cursize; int index; //最早的視窗 }MOVWINQUEUE; MOVWINQUEUE moveQueue = { .length = MAX_WORDS, .cursize = 0, .index = 0 }; typedef struct { int length; MOVWIN* array[MAX_WORDS+10]; int index; }MOVWINPOOL; MOVWINPOOL movePool = { .index = 0, .length = MAX_WORDS }; void addToQueue(MOVWINQUEUE* pool, MOVWIN* mw) { assert(mw); assert(mw->win); int i=0; for(i=0; i<pool->length; i++) { if(pool->array[i]==NULL) { pool->array[i] = mw; pool->cursize ++; break; } } } //remove mw from queue void removeFromQueue(MOVWINQUEUE* pool, MOVWIN* mw) {//TODO:::未檢察溢位，本程式不會出現 assert(mw); int i=0; for(i=0; i<pool->length; i++) { if(pool->array[i] == mw) { pool->array[i] = NULL; pool->cursize --; break; } } } void getFromPool(MOVWINPOOL* pool, MOVWIN** mw) { int i=0; *mw = NULL; for(i=0; i<pool->length; i++) { if(pool->array[i]!=NULL) { *mw = pool->array[i]; pool->array[i] = NULL; break; } } } void addToPool(MOVWINPOOL* pool, MOVWIN* mw) { assert(mw); assert(mw->win); int i=0; for(i=0; i<pool->length; i++) { if(pool->array[i]==NULL) { pool->array[i] = mw; break; } } } void fillMoveWin(MOVWIN* mw, const char* word, int y, int x) { strcpy(mw->word, word); mw->length = strlen(mw->word); mw->index = 0; mw->y = y; mw->x = x; } void initMoveWin(MOVWIN* mw) { wattron(mw->win, A_REVERSE); mvwaddnstr(mw->win, 0, 0, movestr,MOVE_HEIGHT*MOVE_WIDTH); mw->startx = 0; //子視窗內部游標位置 mw->starty = 0; // getbegyx(mw->win, mw->y, mw->x); // mw->x += i*15; //子視窗在父視窗的座標 mw->index = 0; mw->finish = 0; mw->match_flag = 1; } void initPoolAndQueue(MOVWINPOOL* pool, MOVWINQUEUE* queue) { int i; MOVWIN* mw; for(i=0; i<pool->length; i++) pool->array[i] = NULL; for(i=0; i<queue->length; i++) queue->array[i] = NULL; for(i=0; i<pool->length; i++) { mw = (MOVWIN*) malloc(sizeof(MOVWIN)); assert(mw); //TODO::check mw->win = newwin(MOVE_HEIGHT, MOVE_WIDTH, 0, 30); assert(mw->win); initMoveWin(mw); addToPool(pool, mw); } } void releasewin() { free(topstr); free(basestr); sem_destroy(&sem_keybuffer); sem_destroy(&sem_movequeue); delwin(topwin);delwin(pausewin);delwin(numwin); delwin(overwin);endwin();delwin(movewin); } void contin () { touchwin(topwin); wrefresh(topwin); } void paus () { touchwin(pausewin); wrefresh(pausewin); pause(); } void game_over () { touchwin(topwin);wrefresh(topwin); touchwin(overwin);wrefresh(overwin); FLAG=0; return; } void stop (int usec) { struct timeval tv; tv.tv_sec=0; tv.tv_usec=usec; select(0,NULL,NULL,NULL,&tv); } void speedTune() { if(times<30) n=400000; else if(times>=30 && times <60) n=350000; else if(times>=60 && times<100) n=300000; else if(times>=100 && times<150) n=250000; else if(times>=150 && times <220) n=200000; else n=150000; stop(n*1.5); } int main () { int i,j,res,s=0; struct sigaction to_pause,to_continue,to_over; initscr(); noecho();cbreak();keypad(stdscr,TRUE);curs_set(0); clear(); refresh(); basestr = (char*) calloc(LINES*COLS,1); topstr = (char*) calloc((LINES-2)*(COLS-15),1); memset(topstr,' ', (LINES-2)*(COLS-15)); movestr = (char*) calloc(2*10,1); memset(movestr,' ', MOVE_WIDTH*MOVE_HEIGHT); if(topstr==NULL || basestr==NULL) { perror("Malloc Failure");endwin();exit(1); } basewin = newwin(LINES,COLS,0,0); topwin = newwin(TOP_HEIGHT,TOP_WIDTH,0,8); bottomwin = newwin(1,30, LINES-1,(COLS-30)/2); pausewin = newwin(1,COLS/2,LINES/2,COLS/4); overwin = newwin(3,COLS/2,LINES/2+1,COLS/4); numwin = newwin(1,11,LINES-1,COLS/2+18); movewin = newwin(MOVE_HEIGHT, MOVE_WIDTH,0,15); if(topwin==NULL || pausewin==NULL || overwin==NULL || numwin==NULL || bottomwin==NULL || movewin==NULL) { perror("Create window Failure");endwin();exit(1); } if(!has_colors()) { perror("Devices not support colors"); delwin(topwin);delwin(pausewin);delwin(overwin); delwin(numwin);endwin();exit(1); } if(start_color()!=OK) { perror("Initialize Colors Failure"); delwin(topwin);delwin(pausewin);delwin(overwin); delwin(numwin);endwin();exit(1); } init_pair(1,COLOR_WHITE,COLOR_BLACK); init_pair(2,COLOR_GREEN, COLOR_RED); init_pair(3,COLOR_YELLOW, COLOR_BLUE); init_pair(4,COLOR_YELLOW, COLOR_BLUE); init_pair(5,COLOR_BLACK, COLOR_CYAN); //////////// wattron(basewin, COLOR_PAIR(2)); for(i=0;i<LINES;i++) { for(j=0; j<COLS; j++) if(j== 7 || j==COLS-7) *(basestr+i*(COLS) + j) = '+'; else *(basestr+i*(COLS) + j) = ' '; } mvwaddstr(basewin,0,0,basestr); wrefresh(basewin); wattron(topwin, COLOR_PAIR(5)); mvwaddstr(topwin,0,0, topstr); wrefresh(topwin); wattron(bottomwin,COLOR_PAIR(2)); mvwprintw(bottomwin,0,0,"%s","Press '1' to PAUSE,'2' to QUIT"); wrefresh(bottomwin); wattroff(bottomwin,COLOR_PAIR(2)); wattron(numwin,COLOR_PAIR(2)); mvwprintw(numwin,0,0,"[Score:%-3d]",hited_num); wrefresh(numwin); wattron(pausewin,COLOR_PAIR(2)); mvwprintw(pausewin,0,2,"%s","Press 'CTRL-C' to Continue."); wattroff(pausewin,COLOR_PAIR(2)); wattron(overwin,COLOR_PAIR(3)); for(i=0;i<3;i++) { for(j=0;j<COLS/2;j++) mvwaddch(overwin,i,j,' '); } wattroff(overwin,COLOR_PAIR(3)); wattron(overwin,COLOR_PAIR(4)); mvwprintw(overwin,1,COLS/4-4,"%s","GAME OVER"); mvwprintw(overwin,2,COLS/4-8,"%s","'CTRL-C' to QUIT"); wattroff(overwin,COLOR_PAIR(4)); to_pause.sa_handler=paus; sigemptyset(&to_pause.sa_mask); to_pause.sa_flags=0; sigaction(SIGUSR1,&to_pause,0); to_continue.sa_handler=contin; sigemptyset(&to_continue.sa_mask); to_continue.sa_flags=0; sigaction(SIGINT,&to_continue,0); to_over.sa_handler=game_over; sigemptyset(&to_over.sa_mask); to_over.sa_flags=0; sigaction(SIGUSR2,&to_over,0); ///////////////////////// main_tid=pthread_self(); if(sem_init(&sem_keybuffer,0,1)||sem_init(&sem_movequeue,0,1) || sem_init(&sem_first,0,0)) { perror("Semaphore Initialize Failure"); releasewin();exit(1); } sleep(1); s=(int)time(NULL); // int y=0,x=20; // mvwin(movewin,y,x); // MOVWIN one = // { // .startx = 0, // .starty = 0, // .x = x, // .y = y, // .length = 5, // .word = "hello", // .index = 0, // .finish = 0, // .match_flag = 1, // .win = movewin // }; // mvwaddnstr(one.win, one.starty, one.startx, one.word, one.length); // wrefresh(one.win); initPoolAndQueue(&movePool, &moveQueue); pthread_t new_one, new_two; MOVWIN* tmp = NULL; int rand_x, rand_y; //TODO:: char* rand_word[9] = {"hello","world","linux","windows","google","baidu","redhat","sun","oracel"}; int wi = 0; //rand_word的索引 int lasty = OFFSET_MW;//小視窗間距 int isfirst = 1; while(FLAG) { rand_y = 0; rand_x = abs(rand()%(COLS-30)) + 10; //是否需要新增新視窗到queue sem_wait(&sem_movequeue); if(moveQueue.cursize < MAX_WORDS && lasty >= OFFSET_MW ) { getFromPool(&movePool, &tmp); { mvwaddnstr(tmp->win, 0, 0, movestr, MOVE_HEIGHT*MOVE_WIDTH); fillMoveWin(tmp, rand_word[wi], 0, rand_x); wi = (wi+1)%9; } mvwaddnstr(tmp->win, tmp->starty, tmp->startx, tmp->word, tmp->length); mvwin(tmp->win, tmp->y, tmp->x); wrefresh(tmp->win); addToQueue(&moveQueue, tmp); lasty = 0; } sem_post(&sem_movequeue); if(isfirst) { if(pthread_create(&new_one,NULL,receivekey,(void *)topstr) || pthread_create(&new_two,NULL,checkMatch, NULL)) { perror("Thread Create Failure"); releasewin();exit(1); } sem_post(&sem_first); isfirst = 0; } speedTune(); ///集體動畫效果 refresh(); mvwaddnstr(topwin, 0, 0, topstr, (LINES-2)*(COLS-15)); wnoutrefresh(topwin); sem_wait(&sem_movequeue); for(j=0; j<moveQueue.length; j++) { tmp = NULL; if(moveQueue.array[j] != NULL) { tmp = moveQueue.array[j]; //判斷落地單詞 if(tmp->y == TOP_HEIGHT-MOVE_HEIGHT) { pthread_kill(main_tid, SIGUSR2); pause(); } //完成的消失(可以不匹配) if(tmp->finish == 1) { tmp->finish = 0; mvwin(tmp->win, tmp->y+5, tmp->x+5); removeFromQueue(&moveQueue, tmp); addToPool(&movePool, tmp); tmp == NULL; ++hited_num; ++times; //速度調節相關 } else//動畫效果 { tmp->y = tmp->y + 1; mvwin(tmp->win, tmp->y, tmp->x); wnoutrefresh(tmp->win); } } } sem_post(&sem_movequeue); doupdate(); ///重新整理成績 mvwprintw(numwin,0,0,"[Score:%-3d]",hited_num); wrefresh(numwin); /////// lasty ++; } wattroff(topwin, COLOR_PAIR(5)); releasewin(); exit(1); } /* 迴圈佇列：location[1000], 1000的長度客觀上講不會出現迴圈佇列滿的現象 checkMatch 只進行入隊操作 影響tail changekey 只進行出隊操作 影響head head == tail 為空 */ void *receivekey (void *arg) { int i,key; char *p=(char *)arg; while(1) { key=getch(); ++typed_num; if(key=='1') pthread_kill(main_tid,SIGUSR1); else if(key=='2') FLAG=0; else { keybuffer[tail] = key; tail = (tail+1)%QUEUE_LEN; ++typed_num; } } } #define INCRIMENT(one) / if(one->index < one->length) one->index++; #define DECRIMENT(one) / if(one->index > 0) one->index--; #define DO_BACKSPACE(one) do{ / mvwaddch(one->win, one->starty+1, one->startx + one->index, ' '); / DECRIMENT(one); / wrefresh(one->win); / }while(0) #define CHECK_FINISH(one) / if(one->index>=one->length && one->match_flag) / { one->finish = 1; / mvwin(one->win, 0, 60); / } #define DO_MATCH(one, ch) do{ / wattron(one->win, A_UNDERLINE); / mvwaddch(one->win, one->starty+1, one->startx+one->index, ch); / one->index ++; / wrefresh(one->win); / wattroff(one->win, A_UNDERLINE); / }while(0) #define DO_MISMATCH(one, ch) { / wattron(one->win, A_BOLD); / mvwaddch(one->win, one->starty+1, one->startx+one->index, ch); / one->match_flag = 0; / one->index ++; / wrefresh(one->win); / wattroff(one->win, A_BOLD); / } #define IS_MATCH_KEY(ch) ((ch)>='a'&&(ch)<='z') #define IS_CONTROL_KEY(ch) ((ch)==27 || (ch) == KEY_BACKSPACE ) void* checkMatch (void* arg) { int m; int i,j,k,l; int buffer[100]; int buf_size=0; sem_wait(&sem_first); MOVWIN* mw = NULL; i=0,j=0; while(1) { //獲得儘可能大的buffer buf_size = 0; int tmptail= tail; while(head != tmptail) { buffer[buf_size++] = keybuffer[head]; head = (head+1)%QUEUE_LEN; } //遍歷buffer for(i=0; i<buf_size; i++) { int ch = buffer[i]; if(IS_MATCH_KEY(ch) || IS_CONTROL_KEY(ch)) { //匹配視窗為空？ if(NULL == mw) {///遍歷moveQueue,找出合適的視窗 sem_wait(&sem_movequeue); for(j=0; j<moveQueue.length; j++) { if(moveQueue.array[j] && moveQueue.array[j]->word[0]== ch && moveQueue.array[j]->finish==0) { mw = moveQueue.array[j]; break; } } sem_post(&sem_movequeue); } //有匹配視窗? if(mw) { if(IS_MATCH_KEY(ch)) { //超過index就不再進行 if(mw->index < mw->length) { if(ch == mw->word[mw->index]) { DO_MATCH(mw, ch); //檢查是否完成 if(mw->index >= mw->length) { mw->finish = 1; mw = NULL; } } else DO_MISMATCH(mw, ch); } } else { DO_BACKSPACE(mw); } } } } } } 

　　這個單詞練習遊戲還有很多地方沒有完善，比如單詞庫隨機功能，計數功能有問題（懶得改了），或者還有bug,但跑起來還像那麼回事，如下圖：

6.  需要說明的是refresh()函式的功能，在這上面犯了不少錯誤：

refresh()就是重新整理主螢幕（預設的螢幕）

a)   程式初始化階段，清除主螢幕，否則有時候程式啟動後，視窗上很多亂碼和不知名的符號！

b)　如果程式裡生成了好幾個視窗，並頻繁操作它們的位置，那麼也需要定時地重新整理主螢幕，否則同樣是視窗上顯示混亂！