C++实现俄罗斯方块

/* 初始化参数 */
enum init_flags
{
 SHOWCONSOLE = 1  // 进入图形模式时，保留控制台的显示
};

/* 颜色常量设置 */
enum COLORS
{
 BLACK = 0,
 BLUE = 0xA80000,
 GREEN = 0x00A800,
 CYAN = 0xA8A800,
 RED  = 0x0000A8,
 MAGENTA = 0xA800A8,
 BROWN = 0x0054A8,
 LIGHTGRAY = 0xA8A8A8,
 DARKGRAY = 0x545454,
 LIGHTBLUE = 0xFC5454,
 LIGHTGREEN = 0x54FC54,
 LIGHTCYAN = 0xFCFC54,
 LIGHTRED = 0x5454FC,
 LIGHTMAGENTA= 0xFC54FC,
 YELLOW = 0x54FCFC,
 WHITE = 0xFCFCFC
};

/* 视图设置信息 */
struct viewporttype
{

 int left, top, right, bottom;
 int clip;
};

/* 线样式 */
enum line_styles
{
    SOLID_LINE   = 0,
    DOTTED_LINE  = 1,
    CENTER_LINE  = 2,
    DASHED_LINE  = 3,
    USERBIT_LINE = 4,   /* User defined line style */
};

/* 线宽 */
enum line_widths
{
    NORM_WIDTH  = 1,
    THICK_WIDTH = 3,
};

/* 线形 */
struct linesettingstype
{
    int linestyle;
    unsigned upattern;
    int thickness;
};

/* 填充模式 */