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Commit dc9e7f0

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‎snakeGame.cpp‎

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// header files
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#include<iostream>
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#include<time.h>
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#include"headerFile/getchInLinux.h" // for getch() in linux
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#include"headerFile/kbhit3.h" // for kbhit() in Linux
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#include<cstdlib> // for exit()
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using namespace std;
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// class
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class snake
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{
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// by default private
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int borderX,borderY;
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int foodX,foodY;
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int x,y,score;
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int totalSegment;
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int snakeTail[2][100]; //
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string name;
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public:
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snake(); // constructor
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void showBorder();
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void foodGenerate();
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int readEnteredKey();
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int changeDirectcion(int);
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int eatingCheck(); // if food eaten by snake return 1 , else return 0
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void increaseScore();
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void showScore();
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int checkBoundryCollision();
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void addSegment();
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int checkOverlap();
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void delay1();
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};
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snake:: snake()
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{
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system("clear");
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cout<<"Enter Your Good Name: ";
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cin>>name;
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system("clear");
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cout<<"\n SNAKE .................GAME ! \n\n";
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cout<<" RULE OF THIS GAME \n";
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cout<<"\n1.You can move snake in up,Down,Left or Right only by arrow key ";
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cout<<"\nMove Up : by Up arrow key ";
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cout<<"\nMove Down : by Down arrow key";
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cout<<"\nMove Left : by Left arrow key";
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cout<<"\nMove Right: by Right arrow key";
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cout<<"\n\n2.You can exit the game at any time by pressing 'E' or 'e' ";
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cout<<"\n3.For each eaten food You will be awared a 5 point ";
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cout<<"\n\n Happy gaming , Good Luck\n";
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cout<<"\nEnter any key to start..... : ";
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score=0; // initial zero
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borderX=90;
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borderY=30;
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x=borderX/2;
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y=borderY/2;
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totalSegment=0; // snake segment
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}
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void snake:: showScore()
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{
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cout<<"your score: "<<score<<endl<<endl;
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}
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void snake:: showBorder()
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{
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system("clear");
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cout<<" SNAKE GAME ";
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cout<<"\n\nWelcome "<<name<<" , ";
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showScore();
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for(int i=1;i<=borderY;i++)
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{ for(int j=1;j<=borderX;j++)
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if((i==1 || i==borderY )|| (j==1 || j== borderX))
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cout<<".";
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else if(j==foodX && i==foodY)
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cout<<"F";
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else if(checkBoundryCollision())
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{}
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else if(j==x && i==y)
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cout<<"@";
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else if(eatingCheck())
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{
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foodGenerate(); // generate new food for snake
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increaseScore(); // increase score
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delay1();
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delay1();
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delay1();
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delay1();
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delay1();
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addSegment(); // to add segmments
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}
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else // printing snake segments
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{ int temp=0;
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for(int k=1;k<=totalSegment;k++)
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if(j==snakeTail[0][k] && i==snakeTail[1][k])
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{ cout<<"o";
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temp=1;
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}
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if(!temp)
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cout<<" ";
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}
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cout<<endl;
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}
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}
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void snake:: foodGenerate()
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{
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delay1();
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delay1();
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delay1();
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delay1();
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srand(time(NULL));
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while(1)
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{ foodX=rand()%(borderX); // randomly
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foodY=rand()%(borderY);
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if(foodX>1 && foodY>1)
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break;
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}
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totalSegment++; // segments increased by one
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}
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// Reads the user input character and return ascii value of that
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int snake::readEnteredKey()
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{
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char c;
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c = getchInLinux();
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if(c==27 || c==91) // this is just for scan code
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{ c = getchInLinux();
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if(c==27 || c==91) // also for scan code
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c=getchInLinux();
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}
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return c;
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}
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int snake::changeDirectcion(int key)
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{
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switch(key)
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{
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case 69: // ascii of E
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case 101: // ascii of e
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cout<<"\a\a\a\a\a\a\n Thanks for Playing ! \n\a";
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cout<<"\nHit 'Enter' to exit the game \n";
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key=readEnteredKey();
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exit(0);
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case 65: // arrow up
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y--;
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return 1;
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case 66: // arrow down
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y++;
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return 1;
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case 67: // arrow right
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x++;
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return 1;
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case 68: // arrow left
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x--;
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return 1;
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default:
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// cout<<"\n\n \a\a❌ Not Allowed \a\a\a\a");
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return 0;
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}
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}
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int snake::checkBoundryCollision()
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{
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if(x<=1 || x>=borderX || y<=1 || y>=borderY)
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{ system("clear");
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cout<<"\nGame Over ! ";
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showScore();
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delay1();
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delay1();
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exit(0);
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}
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return 0;
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}
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int snake::eatingCheck()
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{
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if(foodX==x && foodY==y)
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return 1;
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return 0;
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}
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void snake::increaseScore()
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{
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score+=5;
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}
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void snake:: addSegment()
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{
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// idea is that , each snake segments will follow its front snake.
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// i.e
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// first segment will follow snake's HEAD
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// 2nd segment " " 1st segment
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// 3rd segment " " 2nd segment
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int prev1X=snakeTail[0][0];
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int prev1Y=snakeTail[1][0];
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int current1X;
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int current1Y;
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snakeTail[0][0]=x;
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snakeTail[1][0]=y;
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for(int i=1;i<totalSegment;i++)
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{
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current1X=snakeTail[0][i];
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current1Y=snakeTail[1][i];
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snakeTail[0][i]=prev1X;
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snakeTail[1][i]=prev1Y;
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prev1X=current1X;
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prev1Y=current1Y;
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}
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}
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int snake:: checkOverlap()
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{
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int i;
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for(i=0;i<totalSegment;i++)
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if(x==snakeTail[0][i] && y==snakeTail[1][i])
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break;
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if(i<totalSegment)
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{
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system("clear");
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cout<<"\nGame Over ! ";
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showScore();
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delay1();
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delay1();
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exit(0);
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}
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return 0;
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}
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void snake::delay1()
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{
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for(int i=1;i<=10000;i++)
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for(int j=1;j<=1000;j++);
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}
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int main() // main function
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{
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int key,d;
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snake s1;
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int x=s1.readEnteredKey();
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x=s1.readEnteredKey();
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system("clear");
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s1.foodGenerate();
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s1.showBorder();
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key=s1.readEnteredKey();
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s1.delay1();
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s1.delay1();
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while(1)
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{
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while(!kbhitInLinux())
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{
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s1.showBorder();
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d=s1.changeDirectcion(key);
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s1.checkOverlap();
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s1.addSegment(); // to add snake segmments
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s1.delay1();
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s1.delay1();
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s1.delay1();
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s1.delay1();
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s1.delay1();
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s1.delay1();
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system("clear");
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}
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s1.showBorder();
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key=s1.readEnteredKey();
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s1.delay1();
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s1.delay1();
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s1.delay1();
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s1.delay1();
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s1.delay1();
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d=s1.changeDirectcion(key);
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s1.checkOverlap();
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s1.addSegment(); // to add segmments
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}
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return 0; // return from main
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}

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