Falling Rocks

/*
 * * Implement the "Falling Rocks" game in the text console. A small dwarf stays at the bottom of the screen and can move left and right (by the arrows keys). A number of rocks of different sizes and forms constantly fall down and you need to avoid a crash.
 *
 * The game is based on JustCars by Niki's demo
 *
 */

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;

struct Object
{
    public int x;
    public int y;
    public char c;
    public ConsoleColor color;
}

class FallingRocks
{
    static void PrintOnPosition(int x, int y, char c,
        ConsoleColor color = ConsoleColor.Gray)
    {
        Console.SetCursorPosition(x, y);
        Console.ForegroundColor = color;
        Console.Write(c);
    }
    static void PrintStringOnPosition(int x, int y, string str,
        ConsoleColor color = ConsoleColor.Gray)
    {
        Console.SetCursorPosition(x, y);
        Console.ForegroundColor = color;
        Console.Write(str);
    }
    static void Main()
    {
        long scores = 0;
        int speed = 100;
        int acceleration = 1;
        //byte level = 1;
        int playGroundWidht = 30;
        int livesCount = 3;
        Console.BufferHeight = Console.WindowHeight = 20;
        Console.BufferWidth = Console.WindowWidth = 60;
        Object dwarf = new Object();
        dwarf.x = 15;
        dwarf.y = Console.WindowHeight - 1;
        dwarf.c = 'O';
        dwarf.color = ConsoleColor.Cyan;
        char[] rockSymbol = new char[11];
        rockSymbol[1] = '@';
        rockSymbol[2] = '*';
        rockSymbol[3] = '&';
        rockSymbol[4] = '+';
        rockSymbol[5] = '%';
        rockSymbol[6] = '$';
        rockSymbol[7] = '#';
        rockSymbol[8] = '!';
        rockSymbol[9] = '.';
        rockSymbol[10] = ';';

        Random randomGenerator = new Random();
        List<Object> objects = new List<Object>();
        while (true)
        {
            scores = scores + 1;
            if(scores <= 1000 && scores <= 2000)
            {
                acceleration = 1;
            }
            else if (scores < 2000 && scores <= 5000)
            {
                acceleration = 2;
            }
            else if (scores < 5000 && scores <= 10000)
            {
                acceleration = 3;
            }
            else if (scores < 10000 && scores <= 20000)
            {
                acceleration = 4;
            }
            else
            {
                acceleration = 5;
            }

            speed += acceleration;
            if (speed > 500)
            {
                speed = 500;
            }

            bool hitted = false;
            {
                int chance = randomGenerator.Next(0, 100);
                if (chance < 5)
                {
                    Object newObject = new Object();
                    newObject.color = ConsoleColor.DarkGreen;
                    newObject.c = 'L'; // 1 live bonus
                    newObject.x = randomGenerator.Next(0, playGroundWidht);
                    newObject.y = 0;
                    objects.Add(newObject);
                }
                else if (chance < 20)
                {
                    Object newObject = new Object();
                    newObject.color = ConsoleColor.Green;
                    newObject.c = 'S';   // speed bonus
                    newObject.x = randomGenerator.Next(0, playGroundWidht);
                    newObject.y = 0;
                    objects.Add(newObject);
                }
                else if (chance < 25)
                {
                    Object newObject = new Object();
                    newObject.color = ConsoleColor.Blue;
                    newObject.c = 'D'; // scores * 2
                    newObject.x = randomGenerator.Next(0, playGroundWidht);
                    newObject.y = 0;
                    objects.Add(newObject);
                }
                else if (chance < 30)
                {
                    Object newObject = new Object();
                    newObject.color = ConsoleColor.DarkYellow;
                    newObject.c = 'B'; // bonus scores
                    newObject.x = randomGenerator.Next(0, playGroundWidht);
                    newObject.y = 0;
                    objects.Add(newObject);
                }
                else
                {
                    Object newCar = new Object();
                    newCar.color = ConsoleColor.Red;
                    newCar.x = randomGenerator.Next(0, playGroundWidht);
                    newCar.y = 0;
                    newCar.c = rockSymbol[randomGenerator.Next(1, 10)];    // different rocks
                    objects.Add(newCar);
                }
            }

            while (Console.KeyAvailable)
            {
                ConsoleKeyInfo pressedKey = Console.ReadKey(true);

                if (pressedKey.Key == ConsoleKey.LeftArrow)
                {
                    if (dwarf.x - 1 >= 0)
                    {
                        dwarf.x = dwarf.x - 1;
                    }
                }
                else if (pressedKey.Key == ConsoleKey.RightArrow)
                {
                    if (dwarf.x + 1 < playGroundWidht)
                    {
                        dwarf.x = dwarf.x + 1;
                    }
                }
            }
            List<Object> newList = new List<Object>();
            for (int i = 0; i < objects.Count; i++)
            {
                Object oldRock = objects[i];
                Object newRock = new Object();
                newRock.x = oldRock.x;
                newRock.y = oldRock.y + 1;
                newRock.c = oldRock.c;
                newRock.color = oldRock.color;
                if (newRock.c == 'S' && newRock.y == dwarf.y && newRock.x == dwarf.x)
                {
                    speed -= 50;
                    if (speed < 100)
                    {
                        speed = 100;
                    }
                }
                if (newRock.c == 'L' && newRock.y == dwarf.y && newRock.x == dwarf.x)
                {
                    livesCount++;
                }
                if (newRock.c == 'B' && newRock.y == dwarf.y && newRock.x == dwarf.x)
                {
                    scores = scores + 10;
                }
                if (newRock.c == 'D' && newRock.y == dwarf.y && newRock.x == dwarf.x)
                {
                    scores = scores + 20;
                }
                if ((newRock.c == '@' || newRock.c == '*' || newRock.c == '&' || newRock.c == '+' || newRock.c == '%' || newRock.c == '$' || newRock.c == '#' || newRock.c == '!' || newRock.c == '.' || newRock.c == ';') && newRock.y == dwarf.y && newRock.x == dwarf.x)
                {
                    //Console.Beep();
                    livesCount--;
                    hitted = true;

                    while(livesCount <= 0)
                    {
                        PrintStringOnPosition(40, 10, "GAME OVER!!!", ConsoleColor.Red);
                        PrintStringOnPosition(40, 12, "New game -> N", ConsoleColor.Blue);
                        PrintStringOnPosition(40, 14, "Exit -> [esc]", ConsoleColor.Red);
                        ConsoleKeyInfo pressedKey = Console.ReadKey(true);
                        if (pressedKey.Key == ConsoleKey.Escape)
                        {
                            Environment.Exit(0);
                        }
                        if (pressedKey.Key == ConsoleKey.N)
                        {
                            Main();
                        }
                    }
                }
                if (newRock.y < Console.WindowHeight)
                {
                    newList.Add(newRock);
                }
            }
            objects = newList;
            Console.Clear();
            if (hitted)
            {
                objects.Clear();
                if (speed > 200)
                {
                    speed = 150;
                }
                PrintOnPosition(dwarf.x, dwarf.y, 'X', ConsoleColor.Red);
            }
            else
            {
                PrintOnPosition(dwarf.x, dwarf.y, dwarf.c, dwarf.color);
            }
            foreach (Object car in objects)
            {
                PrintOnPosition(car.x, car.y, car.c, car.color);
            }

            PrintStringOnPosition(40, 4, "Scores: " + scores, ConsoleColor.White);
            PrintStringOnPosition(40, 5, "Lives: " + livesCount, ConsoleColor.White);
            PrintStringOnPosition(40, 6, "Speed: " + speed, ConsoleColor.White);
            PrintStringOnPosition(40, 7, "Acceleration: " + acceleration + "/5", ConsoleColor.White);
            //PrintStringOnPosition(40, 8, "Level: " + level + "/10", ConsoleColor.White);

            Thread.Sleep((int)(600 - speed));
        }
    }
}