basgraph.h

来自「教材例子」· C头文件 代码 · 共 34 行

//程序BASGRAPH.HPP(7.2.4)	功能：定义基本图形元素的类界面
#include <graphics.h>
enum BOOLEAN{ FALSE, TRUE};
class LOCATION{
public:
	LOCATION(int x, int y);
	int get_x();
	int get_y();
protected:
	int x_pos, y_pos;
};

class POINT:public LOCATION{
public:
	POINT(int x, int y);
	BOOLEAN is_visible();
	void show();
	void hide();
	void move_to(int x, int y);
protected:
	BOOLEAN visible;
};

class CIRCLE:public POINT{
public:
	CIRCLE(int x, int y, int r);
	void show();
	void hide();
	void move_to(int x, int y);
	void expand(int delta);
	void contract(int delta);
protected:
	int radius;
};