WEEk13

 Week13

• 先做每周重複的前置作業
• 將上禮拜的最後一個資料夾(12-3)複製，改成week13-1_keyboard__angleID_mouse_motion_angle
• 新增

void keyboard(unsigned char key , int x ,int y){
    if(key=='0') angleID = 0;
    if(key=='1') angleID = 1;
    if(key=='2') angleID = 2;
    if(key=='3') angleID = 3;
}
void mouse(int button, int state, int x, int y){
    oldX = x;
    oldY = y;
}
void motion(int x, int y){
    angle[angleID] += y - oldY;
    oldX = x;
    oldY = y;
    glutPostRedisplay();
}

• 等等
• 使剛彈關節也可以轉動

• 將week13-1_keyboard__angleID_mouse_motion_angleweek複製改成week13-3_FILE_fopen_fclose_fprintf_fscanf
• 將void keyboard(unsigned char key, int x, int y)

加上 if(key=='s'){

        if(fout=NULL) fout = fopen("angle.txt", "w+");

        for(int i=0; i<20; i++){

            printf("%.1f ", angle[i] );

        }

        printf("\n");///產生座標

 再加上if(fout==NULL) fout = fopen("angle.txt", "w+");///產生座標紀錄

  加上  if(key=='s'){

        if(fout==NULL) fout = fopen("angle.txt", "w+");

        for(int i=0; i<20; i++){

            printf("%.1f ", angle[i] );

            fprintf(fout,"%.1f", angle[i] );

     }///產生筆記

加上if(key=='r'){

        if(fin==NULL) fin = fopen ("angle.txt", "r");

        for(int i= 0; i<20; i++){

            fscanf(fin, "%f", & angle[i] );

        }

        glutPostRedisplay();

    }///重複上次動作

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