bullet.h

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#ifndef BULLET_H
#define BULLET_H

// 定义子弹基类
class Bullet:public Sprite
{
protected:
	void SetMovement(double speed, int angle);
public:
	static enum BULLET_TYPE { PLAYER_BULLET_FIRE, PLAYER_BULLET_MISSILE, PLAYER_BULLET_ROUND_BULLET,PLAYER_BULLET_BIG_BULLET, ENERMY_BULLET_1, ENERMY_BULLET_2, ENERMY_BULLET_3, BULLET_COUNT};
		//定义敌机和玩家战斗机的子弹类型各有三种类型；
	void Update();
	static int GetFireInterval(BULLET_TYPE BulletType);//设计子弹的类型和运行时的速度
	Bullet(GameWorld *pgw, int x_value, int y_value, double sprite_vx, double sprite_vy);//　构造函数
};
//为每一种子弹定义一个类，其都为子弹基类的派生类
class PlayerBullet_Big:public Bullet
{
public:
	PlayerBullet_Big(GameWorld *pgw, int x_value, int y_value, double sprite_vx, double sprite_vy);
};
// PLAYER_BULLET_FIRE类
class PlayerBullet_Fire:public Bullet
{
public:
	PlayerBullet_Fire(GameWorld *pgw, int x_value, int y_value, double sprite_vx, double sprite_vy);
};

// Missile导弹类
class PlayerBullet_Missile:public Bullet
{
	int Angle, dAngle;
	int x0, Range;
public:
	PlayerBullet_Missile(GameWorld *pgw, int x_value, int y_value, double sprite_vx, double sprite_vy, int angle);
	void Update();
};

// RoundBullet散弹类
class PlayerBullet_RoundBullet:public Bullet
{
public:
	PlayerBullet_RoundBullet(GameWorld *pgw, int x_value, int y_value, double sprite_vx, double sprite_vy, int angle);
};

// 敌机EnermyBullet1的子弹类
class EnermyBullet1:public Bullet
{
public:
	EnermyBullet1(GameWorld *pgw, int x_value, int y_value, double sprite_vx, double sprite_vy, int angle);
};

// 敌机EnermyBullet２的子弹类
class EnermyBullet2:public Bullet
{
public:
	EnermyBullet2(GameWorld *pgw, int x_value, int y_value, double sprite_vx, double sprite_vy, int angle);
};

//敌机EnermyBullet３的子弹类
class EnermyBullet3:public Bullet
{
public:
	EnermyBullet3(GameWorld *pgw, int x_value, int y_value, double sprite_vx, double sprite_vy, int angle);
};
#endif