//**画蛇的相关类，实现时并没有用到多态性**//
class AbstractDraw{
public:
virtual void Draw(int x,int y)=0;
};
class Drawhead:public AbstractDraw{
public:
void Draw(int x,int y);
};
class Drawbody:public AbstractDraw{
public:
void Draw(int x,int y);
};
class Cleantail:public AbstractDraw{
public:
void Draw(int x,int y);
};
class DrawBean:public AbstractDraw{
public:
void Draw(int x,int y);
};
void Drawhead::Draw(int x,int y){
SuperCol Brush;
int sx,sy;
sx=getmaxx()/2-19*fudu;sy=getmaxy()/2-14*fudu;
Brush.circle3(sx+(x+0.5)*fudu,sy+(y+0.5)*fudu,fudu/2,BLUE,RED);
}
void Drawbody::Draw(int x,int y){
SuperCol Brush;
int sx,sy;
sx=getmaxx()/2-19*fudu;sy=getmaxy()/2-14*fudu;
Brush.bar2(sx+x*fudu,sy+y*fudu,sx+(x+1)*fudu,sy+(y+1)*fudu,BLUE);
}
void Cleantail::Draw(int x,int y){
SuperCol Brush;
int sx,sy;
sx=getmaxx()/2-19*fudu;sy=getmaxy()/2-14*fudu;
Brush.bar2(sx+x*fudu,sy+y*fudu,sx+(x+1)*fudu,sy+(y+1)*fudu,BLACK);
}
void DrawBean::Draw(int x,int y){
SuperCol Brush;
int sx,sy;
sx=getmaxx()/2-19*fudu;sy=getmaxy()/2-14*fudu;
Brush.circle3(sx+(x+0.5)*fudu,sy+(y+0.5)*fudu,fudu/2,YELLOW,WHITE);
}
//* /*负责图形函数的起始与静态场景的绘制*/ *//
class ScreenLayOut{
public:
void GraphicStart();
void GraphicEnd();
void ErrorDetect();
void test();
};
void ScreenLayOut::GraphicStart(){
int gdriver,gmode;
gdriver=DETECT;
gmode=VGAHI;
//Kinitgraph(&gdriver,&gmode,"D:\\TC\\BGI");//Bgi's address shoud be compitabled with Source File
initgraph(&gdriver,&gmode,address);
cleardevice();//Haha Got it!!!
}
void ScreenLayOut::GraphicEnd(){
closegraph();
}
void ScreenLayOut::ErrorDetect(){
int errorcode=0;
errorcode = graphresult();
if (errorcode != grOk) /* an error occurred */
{
GameStatur=Exit;
printf("Graphics error: %s\n", grapherrormsg(errorcode));
printf("Press any key to halt:");
getch();
}
}
void ScreenLayOut::test(){
;
}
class Snake{//核心的蛇类
public:
void Insert(Snake *now);
void DirChan();
void CheckEatSelf();
void CheckEatBean();
Snake(){
mx=0;my=0;mdir=Right;next=NULL;
}
Snake(int x,int y,Direction dir,Snake *s=NULL){
mx=x;
my=y;
mdir=dir;
next=s;
}
void show();
//void Bianli();
int getx(){return mx;}
int gety(){return my;}
int getdir(){return mdir;}
void setdir(Direction p){mdir=p;
DirChan(); }
void Bianlidir();//精->遍链表并改变相关变量值的函数
bool EatSelf();
//void SetTail(){this->next=NULL;}
bool HitWall();//碰墙检测
void MakeNewBean(Obstacle Ob[],int num,Bean &tmpD);//产生新豆
bool HitBrack(Obstacle Ob[],int num);//碰障碍物检测
bool GotBean(Bean dou);//吃到豆子的检测
private:
int mx;
int my;
Direction mdir;
Snake *next;
//here you didn't use new/delete ,which is surely a hidden dangerous.
//As a beginner ,I forgive you.
};
void Snake::show(){
cout<<" x: "<<mx<<" y: "<<my<<" dir "<<mdir<<" -> ";
if(next)next->show();
else cout<<"End\n";
}
void Snake::DirChan(){
switch(this->mdir){
case Up:this->my--;break;
case Down:this->my++;break;
case Left:this->mx--;break;
case Right:this->mx++;break;
default:break;
}
}
void Snake::Insert(Snake *now){
now->next=this->next;//注意了，now 的内部是可以访问的，这给没有友元的TC带来很大的方便.
this->next=now;
now->mx=this->mx;now->my=this->my;now->mdir=this->mdir;
// cout<<(now->next==NULL);
DirChan();//yes
}
void Snake::Bianlidir(){//from tail to head ,not head to tail
if(next){
next->Bianlidir();
next->mdir=this->mdir;
next->DirChan();
}
}
bool Snake::EatSelf(){
bool flag=false;
Snake *pTmp=NULL;
if(next){
for(pTmp=next;pTmp!=NULL;pTmp=pTmp->next)
{if((this->getx()==pTmp->getx())&&(this->gety()==pTmp->gety()))
{
flag=true;
break;
}
}
}
return flag;
}
bool Snake::HitWall(){
bool flag=false;
//Bad smell,for the bare number!.
if((this->mx<0)||(this->mx>37)||(this->my<0)||(this->my>27))
{
flag=true;
}
return flag;
}
void Snake::MakeNewBean(Obstacle Ob[],int num,Bean &tmpD){
bool flag=true;
int i=0,j=0,dx=0,dy=0;
Snake *pTmp=NULL;
int tmpArray[38][28];
for(i=0;i<38;i++){
for(j=0;j<28;j++){
tmpArray[i][j]=0;
}
}
randomize();
for(i=0;i<num;i++){
if(Ob[i].flag){
tmpArray[Ob[i].x][Ob[i].y]=1;
}
}
if(next){
for(pTmp=next;pTmp!=NULL;pTmp=pTmp->next)
{
tmpArray[pTmp->getx()][pTmp->gety()]=1;
}
}
flag=false;
while(!flag)
{dx=random(35)+1;
dy=random(25)+1;
// cout<<"dx"<<dx;
if(tmpArray[dx][dy]==0){
tmpD.x=dx;
tmpD.y=dy;
flag=true;
}
}
gotoxy(2,2);
printf("Score:%d",Score);
Score++;
}
bool Snake::HitBrack(Obstacle Ob[],int num)
{ bool flag=false;
int i=0 ;
for(i=0;i<num;i++){
if(Ob[i].flag){
if((Ob[i].x==this->getx())&&(Ob[i].y==this->gety()))flag=true;
}
}
return flag;
}
bool Snake::GotBean(Bean dou){
//Consider a multiple beans mode?Too complicated ,maybe.
bool flag=false;
if((dou.x==this->getx())&&(dou.y==this->gety()))flag=true;
return flag;
}
