game.cpp

#include<iostream>
#include<conio.h>
#include<fstream>
#include<dos.h> 
#include <windows.h>
#include <time.h>

#define SCREEN_WIDTH 90
#define SCREEN_HEIGHT 26
#define WIN_WIDTH 70 
using namespace std; 

HANDLE console = GetStdHandle(STD_OUTPUT_HANDLE);
COORD CursorPosition;

void gotoxy(int x, int y){
	CursorPosition.X = x;
	CursorPosition.Y = y;
	SetConsoleCursorPosition(console, CursorPosition);
}

void setcursor(bool visible, DWORD size) {
	if(size == 0)
		size = 20;	
	
	CONSOLE_CURSOR_INFO lpCursor;	
	lpCursor.bVisible = visible;
	lpCursor.dwSize = size;
	SetConsoleCursorInfo(console,&lpCursor);
}

class car
{
	char car[4][4] = { ' ','T','T',' ', 
						'O','&','&','O', 
						' ','&','&',' ',
						'O','Y','Y','O' }; 
	protected:
		int carPos = WIN_WIDTH/2;
		
	public:
		void drawCar(){
			for(int i=0; i<4; i++)
			{
				for(int j=0; j<4; j++)
				{
					HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
					SetConsoleTextAttribute(hConsole, 4);
					gotoxy(j+carPos, i+22); cout<<car[i][j];
					SetConsoleTextAttribute(hConsole, 7);
				}		
			}
		}
		void eraseCar(){
			for(int i=0; i<4; i++){
				for(int j=0; j<4; j++){
					gotoxy(j+carPos, i+22); cout<<" ";
				}
			}
		}
};

class enemy
{
	protected:
		int enemyY[3];
		int enemyX[3];
		int enemyFlag[3];
		
	public:
		void drawEnemy(int ind){
			if( enemyFlag[ind] == true ){
				HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
				SetConsoleTextAttribute(hConsole, 9);
				gotoxy(enemyX[ind], enemyY[ind]);   cout<<"****";  
				gotoxy(enemyX[ind], enemyY[ind]+1); cout<<" ** "; 
				gotoxy(enemyX[ind], enemyY[ind]+2); cout<<"****"; 
				gotoxy(enemyX[ind], enemyY[ind]+3); cout<<" ** ";  
		
			} 
		}
		
		void genEnemy(int ind){
			enemyX[ind] = 17 + rand()%(33);  
		}
		
		void eraseEnemy(int ind){
			if( enemyFlag[ind] == true ){
				gotoxy(enemyX[ind], enemyY[ind]); cout<<"    ";  
				gotoxy(enemyX[ind], enemyY[ind]+1); cout<<"    "; 
				gotoxy(enemyX[ind], enemyY[ind]+2); cout<<"    "; 
				gotoxy(enemyX[ind], enemyY[ind]+3); cout<<"    "; 
			} 
		}
		
		void resetEnemy(int ind){
			eraseEnemy(ind);
			enemyY[ind] = 1;
			genEnemy(ind);
		}
};
class highscore
{
	protected:
		char Hname[20];
		int Hscore;	
	public:
		void displayhighscore(){
			system("cls");
			HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
			SetConsoleTextAttribute(hConsole, 14);
			cout<<"Current Highscore.."<<endl<<endl;
			cout<<"Name"<<"\t"<<"Score"<<endl<<endl;
			SetConsoleTextAttribute(hConsole, 14);
			ifstream score("highscore.txt");
			score>>Hname>>Hscore;
			cout<<Hname<<"\t"<<Hscore;
			score.close();
			getche();
		}
		
};
class instruction
{
	
	
	public:
		void instructions(){
	
			system("cls");
			cout<<"Instructions";
			cout<<"\n----------------";
			cout<<"\n Avoid Cars by moving left or right. ";
			cout<<"\n\n Press 'a' to move left";
			cout<<"\n Press 'd' to move right";
			cout<<"\n Press 'escape' to exit";
			cout<<"\n\nPress any key to go back to menu";
			getch();
		}
		
		
		
};


class game : protected enemy, protected car, protected highscore
{
	int score;
	char name[20];
	int speed;
	
	public:
		
		void entername(){
			system ("cls");
			cout<<"Enter your name: ",
			cin>>name;
		}

		void playmenu(){
			HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
			SetConsoleTextAttribute(hConsole, 14);
			gotoxy(WIN_WIDTH + 7, 2);cout<<"Car Game";
			gotoxy(WIN_WIDTH + 6, 4);cout<<"----------";
			gotoxy(WIN_WIDTH + 6, 11);cout<<"----------";
			gotoxy(WIN_WIDTH + 7, 12);cout<<"Control ";
			gotoxy(WIN_WIDTH + 7, 14);cout<<"-------- ";
			gotoxy(WIN_WIDTH + 7, 15);cout<<"-------- ";
			gotoxy(WIN_WIDTH + 2, 16);cout<<" A Key - Left";
			gotoxy(WIN_WIDTH + 2, 17);cout<<" D Key - Right"; 
			
			gotoxy(18, 4);cout<<"Welcome "<<name;
			gotoxy(18, 7);cout<<"Press any key to Start..";getch();
			gotoxy(18, 4);cout<<"                        ";
			gotoxy(18, 7);cout<<"                        ";
			SetConsoleTextAttribute(hConsole, 7);
		}
		
		void setvalue(){	
			carPos = -1 + WIN_WIDTH/2;
			score = 0;	
			speed = 0;
			enemyFlag[0] = 1;
			enemyFlag[1] = 0;
			enemyY[0] = enemyY[1] = 1;
		}
				
		void drawBorder(){  
			for(int i=0; i<SCREEN_HEIGHT; i++){
				for(int j=0; j<17; j++){
					HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
					SetConsoleTextAttribute(hConsole, 10);
					gotoxy(0+j,i); cout<<"1";
					gotoxy(WIN_WIDTH-j,i); cout<<"1";
					SetConsoleTextAttribute(hConsole, 7);
				}
			} 
			for(int i=0; i<SCREEN_HEIGHT; i++){
				HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
				SetConsoleTextAttribute(hConsole, 10);
				gotoxy(SCREEN_WIDTH,i); cout<<"1";
				SetConsoleTextAttribute(hConsole, 7);
			} 
		} 
		
		int collision(int ind){
			if( enemyY[ind]+4 >= 23 ){
				if( enemyX[ind] + 4 - carPos >= 0 && enemyX[ind] + 4 - carPos < 9  ){
					return 1;
				}
			}
			return 0;
		}
		
		void gameover(){
			system("cls");
			HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
			SetConsoleTextAttribute(hConsole, 4);
			cout<<endl;
			cout<<"\t\t------------------------------"<<endl;
			cout<<"\t\t-------- GAME OVER -----------"<<endl;
	
			cout<<"\t\t------------------------------"<<endl<<endl;
			SetConsoleTextAttribute(hConsole, 7);
			cout<<"\t\tPlayer Name:  "<<name<<endl<<endl;
			cout<<"\t\t-------- You scored: "<<score;
			cout<<" -------"<<endl<<endl;
			checkHscore(score);
			cout<<"\t\tPress escape key to go back to menu.";
			getch();
			while(1){
				char ch = getch();
				if( ch==27){
					break;
				}
			}
		}
		void updateScore(){
			HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
			SetConsoleTextAttribute(hConsole, 14);
			gotoxy(WIN_WIDTH + 7, 5);cout<<"Score: "<<score<<endl;
		}
		void checkHscore(int value){
			int score=value;
			ifstream check("highscore.txt");
			check>>Hname>>Hscore;
			if(score>Hscore){
				writeHighScore(score);
				cout<<"\t\tCongratulations "<< name <<endl<<" \t\tNew High Score!!"<<endl<<endl;
			}
			check.close();
		}
		void writeHighScore(int score) {
		    FILE *fp;
		    fp = fopen("highscore.txt", "w");
		    fprintf(fp, "%s %d",name,score);
		    fclose(fp);
		}

		void play(){
			entername();
			setvalue();  
			system("cls"); 
			drawBorder(); 
			updateScore();
			genEnemy(0);
			genEnemy(1);
			playmenu();
				
			while(1){
				if(kbhit()){
					char ch = getch();
					if( ch=='a' || ch=='A' ){
						if( carPos > 18 )
							carPos -= 8;
					}
					if( ch=='d' || ch=='D' ){
						if( carPos < 50 )
							carPos += 8;
					} 
					if(ch==27){
						break;
					}
				} 
				
				drawCar(); 
				drawEnemy(0); 
				drawEnemy(1); 
				
				if( collision(0) == 1  ){
					gameover();
					return;
				}
				if( collision(1) == 1  ){
					gameover();
					return;
				}  
				Sleep(50 - speed);
				eraseCar();
				eraseEnemy(0);
				eraseEnemy(1);
				
				if( enemyY[0] == 10 )
					if( enemyFlag[1] == 0 )
						enemyFlag[1] = 1;
				
				if( enemyFlag[0] == 1 )
					enemyY[0] += 1;
				
				if( enemyFlag[1] == 1 )
					enemyY[1] += 1;
				 
				if( enemyY[0] > SCREEN_HEIGHT-4 ){
					resetEnemy(0);
					score++;
					updateScore();
				}
				if( enemyY[1] > SCREEN_HEIGHT-4 ){
					resetEnemy(1);
					score++;
					updateScore();
				}
				
				if(score == 5){
					speed=10;
				}
				if(score == 15){
					speed=20;
				}
				if(score == 25){
					speed=30;
				}
				if(score == 35){
					speed=35;
				}
				if(score == 45){
					speed=40;
				}
			}
		}
	
			
		
};



int main()
{
	car c;
	enemy e;
	instruction i;
	game g;
	highscore h;
	
	setcursor(0,0); 
	srand( (unsigned)time(NULL)); 
	 
	do{
		system("cls");
		HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
		SetConsoleTextAttribute(hConsole, 14);
		gotoxy(10,5);  cout << "==============================\n";
	    gotoxy(10,6);  cout << "|         WELCOME TO         |\n";
	    gotoxy(10,7);  cout << "==============================\n";
	    gotoxy(10,8);  cout << "|                            |\n";
	    gotoxy(10,9);  cout << "|          CAR GAME          |\n";
	    gotoxy(10,10); cout << "|    ____________________    |\n";
	    gotoxy(10,11); cout << "|                            |\n";
	    gotoxy(10,12); cout << "|      1. Start Game         |\n";
	    gotoxy(10,13); cout << "|      2. Instructions       |\n";
	    gotoxy(10,14); cout << "|      3. Highscore          |\n";
	    gotoxy(10,15); cout << "|      3. Exit               |\n";
	    gotoxy(10,16); cout << "|                            |\n";
	    gotoxy(10,17); cout << "==============================\n";
		gotoxy(10,18); cout<<"Select option: ";
		SetConsoleTextAttribute(hConsole, 7);
		char op = getche();
		
		if( op=='1')g.play() ;
		else if( op=='2') i.instructions();
		else if( op=='3') h.displayhighscore();
		else if( op=='4') exit(0);
		
	}while(1);
	
	return 0;
}