Snake C + + implementation

Recently did not turn over the once written program. It's really offensive. Once really do not understand anything. Just have a program is quite interesting, sophomore time wrote a snake game. Although the program is very ugly, there are a lot of loopholes. But it was also the program that made me really start to like programming. Not much to say. Look at the code first.

#include <iostream> #include <windows.h> #include <ctime> #include <cstdlib> #include < Conio.h>using namespace Std;int N;     The size of the wall, written here in order to control int foods[2];//Food's horizontal ordinate int m=1; Control speed void Gotoxy (int x,int y)//Position function, after input coordinates. The cursor moves to that location for output {COORD pos;p os.   X=2*x; Because the following output graphs are accounted for two position Pos. Y=y; SetConsoleCursorPosition (GetStdHandle (Std_output_handle), POS);//cursor Control position}void color (int a)//color function { Setconsoletextattribute (GetStdHandle (Std_output_handle), a);//So there's just one count.}void init () {//init wall for (int i=0;i<=   n;i++) for (int j=0;j<=n;j++) {Gotoxy (i, j); if (i==0| | i==n| | j==0| |   J==n) {Gotoxy (i, j);   Color (10); cout<< "";} Fence else {Gotoxy (i, j); color (3); cout<< "-";}     Can play the area}}void guize () {gotoxy (5,8); Color (2);   cout<< "welcome you to play this very fun snake game";     Gotoxy (5,9);    Color (2); cout<< "This game is made by Lu Ximing. More rough, please forgive me ";     Gotoxy (n+1,1); Color (12); cout<< "Please press W,s,a,d to control the direction";     Gotoxy (n+1,2); Color (12);      cout<< "Please press SPACEBAR to pause";     Gotoxy (n+1,3); Color (12); cout<< "Your score:"; Sleep (2000);     Gotoxy (5,8); Color (2);   cout<< "";     Gotoxy (5,9);    Color (2); cout<< "";} void food () {//Fruit generation. Use time to do variable Srand ((unsigned) (NULL)), Foods[0]=rand ()% (n-1) +1;//fruit horizontal foods[1]=rand ()% (n-1) +1;//Fruit's ordinate}int m    Ain () {char again= ' r ';    while (again== ' R ') {int err = 0; The input must be correctly inferred Do{err++;if (err>1) {gotoxy (0,0);cout<< "The range you entered is not correct, please enter again"; Sleep (500);}    Gotoxy (0,0);cout<< "Please set the width of the fence, the range is 10-25, press ENTER to determine:";cin>>n; Gotoxy (0,1);cout<< "Please set the difficulty, 1-Simple 2-medium 3-difficult. Press the ENTER key to determine: ";cin>>m;    Gotoxy (0,0);cout<< ""; Gotoxy (0,1); Sleep (;cout<<) ""; while (n<=9| | n>=26| | m<=0| |     M&GT;=4);     int * * snake=null;//defines a snake that is used to control the movement of the snake coordinates int score=0;int tail[2];       The horizontal ordinate of the tail int len=3;     The length of the initial snake char ch= ' P '; The parameter used to control the direction char sH= ' P ';      Used to suppress the movement of the snake in the opposite direction int yw=1;    Used to infer whether to bite yourself int count=1; Control level guize (); init ();//Wall snake= (int**) realloc (Snake,4*len);//For snake request Len length 4 bytes space for (int i=0;i<len;i++) snake [I]=new int[2];for (i=0;i<len;i++) {snake[i][0]=n/2; snake[i][1]=n/2+i; Gotoxy (snake[i][0],snake[i][1]); color (14 );       cout<< "★" <<endl;//with ★ to form the part of the snake}//So that the formation of a 3-length snake s1:food (); Produces a fruit for (i=len-1;i>=0;i--) if (foods[0]==snake[i][0]&&foods[1]==snake[i][1])//prevents the fruit from being long on the snake body goto s1;        Gotoxy (Foods[0],foods[1]);        Color (4); cout<< "" <<endl;              int zt=0; Used to pause while (1)//formally enter the game stage {tail[0]=snake[len-1][0];//Tail of the horizontal axis tail[1]=snake[len-1][1];//tail of the ordinate gotoxy (tail[0],tail[1     ]);      Color (3);cout<< "-";   Gotoxy (0,4);        Color (10); cout<< "", if (ch!= ') {for (i=len-1;i>0;i--) {Snake[i][0]=snake[i-1][0];snake[i][1]=snake[i-1][1];gotoxy ( SNAKE[I][0],SNAKE[I][1]); color;cout<< "★" <<endl; The previous section is replaced by a later section}} if (Kbhit ())//infer if there is aKey Press {gotoxy (0,n+2); Ch=getch ();} if ((sh== ' a ' &&ch== ' d ') | | (sh== ' d ' &&ch== ' a ') | | (sh== ' W ' &&ch== ' s ') | | (sh== ' s ' &&ch== ' W ') | |  (ch!= ' A ' &&ch!= ' W ' &&ch!= ' d ' &&ch!= ' s ' &&ch!= '))    Ch=sh; Suppress snake reverse move switch (CH)//move Direction {case ' W ': Snake[0][1]--;break;case ' s ': Snake[0][1]++;break;case ' a ': snake[0][0]--;break;                  Case ' d ': snake[0][0]++;break;case ": break;   Press the SPACEBAR to pause} sh=ch; Gotoxy (snake[0][0],snake[0][1]); Color (+);cout<< "★" <<endl; Sleep (ABS (300/m-0.1*score-5*count));//The addition of fractions will get faster if (snake[0][0]==foods[0]&&snake[0][1]==foods[1])// After eating apples, the snake scores plus 1.     The serpent grows 1{score+=5; After eating the fruit the scores also correspond to add len++;snake= (int**) realloc (Snake,4*len);//For snake new application len length of 4 bytes of space. Since Len has changed snake[len-1]=new Int[2];s2:food (); Generates a new fruit for (i=len-1;i>=0;i--) if (foods[0]==snake[i][0]&&foods[1]==snake[i][1])//prevents the fruit from being long on the snake body goto S2;        Gotoxy (Foods[0],foods[1]);        Color (4);   cout<< "" <<endl; Gotoxy (n+7,3); color (;cout<)<score<<endl;if (score%50==0) Count++;color (2*count), Gotoxy (n+2,4);cout<< "section" <<count<<               "Off";}            Yw=1;   for (i=1;i<len;i++) if (score>=5&&snake[i][1]==snake[0][1]&&snake[i][0]==snake[0][0])//Bite Yourself       yw=0; if (ch== ') zt=score;if ((YW==0&AMP;&AMP;SCORE&GT;ZT) | | snake[0][1]==0| | snake[0][1]==n| | snake[0][0]==0| | snake[0][0]==n)//bite yourself or hit the fence after the failure {gotoxy (1,N/2); color (); if (score<100) cout<< "So fast dead, really failed. To refuel Ah, rookie level "<<endl;else if (score<200) cout<<" The game is not bad.    Continue to work, Master level "<<endl;else cout<<" play so good, is simply the Great God level "<<endl; delete []snake;      Sleep (+); goto s;   }}s:for (i=0;i<=n;i++) for (int j=0;j<=n;j++) {Gotoxy (i, j); cout<< "";} Gotoxy (1,n/2+1); color (;cout<<) "Press R again.     Other key cancel: "; Gotoxy (13,n/2+1); color (n); Cin>>again;system ("CLS");} return 0;}

The results are as follows:

Can see. The function is realized, and I think it's kinda fun. But there are several obvious flaws in this program:

1. The code is too ugly, all kinds of incorrect qi, I think I now see a bit of difficulty.

2. This program can only be performed correctly under Visual c++6.0, and errors such as redefinition and undefined may occur in other environments. Just look at the for loop I wrote and I should know what's going on.

3, a lot of Goto Ah, C + + was originally to avoid goto, but once was thought to be good, and did not think there is anything wrong!

Alas, think of how ignorant you have been, just a celebrity is not said, life is to constantly find himself is a SB process, although do not know who said, but I want to study is so!

Snake C + + implementation