#include <cstdlib>
#include <iostream>
#include <string>
#include <conio.h>
#include <process.h>

using namespace std;

//car variables
string car("|=|");
string car_frontback("0-0");
string car_space_left("");
string car_space_right("");
int car_space_int = 10;
//int car_health = 100;

//enemy variables
string enemy("|=|");
string enemy_frontback("X=X");
string enemy_space_left("");
string enemy_space_right("");
int enemy_space_int = 0;
int enemy_pos = 0;

//game variables
int row_total = 15;
int space_total = 20;
string game_space("       ");
string line("|");
string show_nothing("   ");
int nothing[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
int i = 0;
int num = 0;

//keyboard variables
const char KEYRIGHT = 75;
const char KEYLEFT = 77;
char arrow = 0;

int main(int argc, char *argv[])
{
    //title screen
    cout << "   -----------------" << endl
         << "   -    Welcome    -" << endl
         << "   -      to       -" << endl
         << "   -   Ultra Car   -" << endl
         << "   -    Racing     -" << endl
         << "   -     3000      -" << endl
         << "   -----------------" << endl
    << "" << endl
    << "Use the left and right keys to dodge cars." << endl
    << "Press any key to start.";
    
    srand(time(NULL));

    //check keyboard
    arrow = kbhit();
    while(arrow !=27) {
                
                //variables
                i = 0; 
                car_space_left = "";
                car_space_right = "";
                enemy_space_left = "";
                enemy_space_right = "";
        
        //wait for kb input... why wait?! :( ..stupid c++
        arrow = getch();     
        switch(arrow)
        {                          
            case KEYLEFT:
                 //left arrow key
                 if (car_space_int <= space_total) car_space_int+=1;
            break;
            case KEYRIGHT:
                 //right arrow key
                 if (car_space_int > 0) car_space_int-=1;
            break;
        }
                
        //space left to the car
        for (i=0; i < car_space_int; i++) {
            car_space_left = car_space_left + " ";
        }
        
        //space right to the car
        for (i=0; i <= space_total-car_space_int; i++) {
            car_space_right = car_space_right + " ";
        }
        
        //set enemy position
        if (enemy_pos == 14) {
            num = 1 + rand() % (20 - 1 + 1);
            enemy_space_int = num;
        }
        
        //space left to the enemy
        for (i=0; i < enemy_space_int; i++) {
            enemy_space_left = enemy_space_left + " ";
        }
        
        //space right to the enemy
        for (i=0; i <= space_total-enemy_space_int; i++) {
            enemy_space_right = enemy_space_right + " ";
        }
        
        
        
        enemy_pos += 1;
        if (enemy_pos > row_total) {
           enemy_pos = 0;
        }
        

        
        //clear screen
        system("cls"); 
        
        //place game screen lower
        
        cout << endl;
        cout << endl;
        cout << endl;
        
        //position of enemy
        for (i=0; i<row_total; i++)
        {
            
             nothing[i] = 0;
             
        }
        
        
        
        nothing[enemy_pos] = 1;
        nothing[enemy_pos+1] = 2;
        nothing[enemy_pos+2] = 1;
        
        //show road, enemy
        for (i=0; i<row_total; i++) {
                  if (nothing[i] == 0) { show_nothing = "   "; }
             else if (nothing[i] == 1) { show_nothing = enemy_frontback; }
             else if (nothing[i] == 2) { show_nothing = enemy; }
        cout << game_space << line << enemy_space_left << show_nothing << enemy_space_right << line << endl;
        }
        
        //show car
        cout << game_space << line << car_space_left << car_frontback << car_space_right << line << endl;
        cout << game_space << line << car_space_left << car           << car_space_right << line << endl;
        cout << game_space << line << car_space_left << car_frontback << car_space_right << line << endl;
        
        cout << endl << "check " << enemy_pos << " + " << i;  
        
          
        }
                
    //end game
    system("PAUSE");
    return EXIT_SUCCESS;
}

//I HAVE A MEMORY LEAK SOMEWHERE!!! :(