FallingRocks

using System;
using System.Collections.Generic;
using System.Threading;
/* 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.
 * Rocks are the symbols ^, @, *, &, +, %, $, #, !, ., ;, - distributed with appropriate density.
 * The dwarf is (O). Ensure a constant game speed by Thread.Sleep(150).
 * Implement collision detection and scoring system. */
class Object
{
    public int x;
    public int y;
    public string c;
    public ConsoleColor color;
}

class FallingRocks
{
    static void PrintOnPosition(int x, int y, string str, ConsoleColor color = ConsoleColor.Gray)
    {
        Console.SetCursorPosition(x, y);
        Console.ForegroundColor = color;
        Console.Write(str);
    }

    static void RockMover(Object rock)
    {
        rock.y++;
    }

    static void Main()
    {
        int simplicity = 150;
        int lives = 5;
        int score = 0;
        int level = 0;
        Console.BufferWidth = Console.WindowWidth = 40;
        Console.BufferHeight = Console.WindowHeight = 40;

        //creating dwarf`s left side "("
        Object dwarfLeftSide = new Object();
        dwarfLeftSide.x = (Console.WindowWidth / 2) - 1;
        dwarfLeftSide.y = Console.WindowHeight - 1;
        dwarfLeftSide.c = "(";
        dwarfLeftSide.color = ConsoleColor.White;
        //creating dwarf`s head "O"
        Object dwarfHead = new Object();
        dwarfHead.x = dwarfLeftSide.x + 1;
        dwarfHead.y = Console.WindowHeight - 1;
        dwarfHead.c = "O";
        dwarfHead.color = ConsoleColor.White;
        //creating dwarf`s right side ")"
        Object dwarfRightSide = new Object();
        dwarfRightSide.x = dwarfHead.x + 1;
        dwarfRightSide.y = Console.WindowHeight - 1;
        dwarfRightSide.c = ")";
        dwarfRightSide.color = ConsoleColor.White;

        List<Object> rocksForPrint = new List<Object>();

        while (lives > 0)
        {
            bool collision = false;

            //printing player on the screen
            PrintOnPosition(dwarfLeftSide.x, dwarfLeftSide.y, dwarfLeftSide.c, dwarfLeftSide.color);
            PrintOnPosition(dwarfHead.x, dwarfHead.y, dwarfHead.c, dwarfHead.color);
            PrintOnPosition(dwarfRightSide.x, dwarfRightSide.y, dwarfRightSide.c, dwarfRightSide.color);

            //moving player
            while (Console.KeyAvailable)
            {
                ConsoleKeyInfo pressedKey = Console.ReadKey();

                if (pressedKey.Key == ConsoleKey.LeftArrow)
                {
                    if (dwarfLeftSide.x >= 1)
                    {
                        dwarfLeftSide.x = dwarfLeftSide.x - 1;
                        dwarfHead.x = dwarfHead.x - 1;
                        dwarfRightSide.x = dwarfRightSide.x - 1;
                    }
                }
                else if (pressedKey.Key == ConsoleKey.RightArrow)
                {
                    if (dwarfRightSide.x < Console.WindowWidth - 1)
                    {
                        dwarfLeftSide.x = dwarfLeftSide.x + 1;
                        dwarfHead.x = dwarfHead.x + 1;
                        dwarfRightSide.x = dwarfRightSide.x + 1;
                    }
                }
            }

            //creating row whit rocks
            string[] rocksString = { "^", "@", "*", "&", "+", "%", "$", "#", "!", ".", ";" };
            ConsoleColor[] rocksColor = { ConsoleColor.White, ConsoleColor.Green, ConsoleColor.Yellow, ConsoleColor.Red, ConsoleColor.Cyan, ConsoleColor.Magenta };
            Random pickArock = new Random();
            Random rockDensity = new Random();
            Random pickXcoordinate = new Random();
            Random pickRockColor = new Random();

            int density = rockDensity.Next(0, 5);

            for (int i = 0; i < density; i++)
            {
                Object rock = new Object();
                rock.x = pickXcoordinate.Next(1, (Console.WindowWidth - 1));
                rock.y = 0;

                //to prevent that random gives every time the same number in loop
                for (int j = 0; j <= 1; j++)
                {
                    rock.c = rocksString[pickArock.Next(0, rocksString.Length)];
                }

                //to prevent that random gives every time the same number in loop
                for (int k = 0; k <= 1; k++)
                {
                    rock.color = rocksColor[pickRockColor.Next(0, rocksColor.Length)];
                }

                rocksForPrint.Add(rock);
            }

            //moving all rocks down
            foreach (var item in rocksForPrint)
            {
                RockMover(item);
            }

            //printing rocks on the screen
            foreach (var rock in rocksForPrint)
            {
                if (rock.y < Console.WindowHeight - 1)
                {
                    PrintOnPosition(rock.x, rock.y, rock.c, rock.color);
                }
            }

            //cuting the List of roks
            if (rocksForPrint.Count > 250)
            {
                for (int i = 0; i < 10; i++)
                {
                    rocksForPrint.RemoveAt(0);
                }
            }

            //cheks for that the dwarf had been hit by some of the rocks
            for (int i = 0; i < rocksForPrint.Count; i++)
            {
                if ((dwarfLeftSide.x == rocksForPrint[i].x || dwarfHead.x == rocksForPrint[i].x || dwarfRightSide.x == rocksForPrint[i].x) && dwarfHead.y == rocksForPrint[i].y)
                {
                    collision = true;
                }
            }

            if (collision)
            {
                Console.Beep();
                //prints dead dwarf
                PrintOnPosition(dwarfLeftSide.x, dwarfLeftSide.y, "*", ConsoleColor.Red);
                PrintOnPosition(dwarfHead.x, dwarfHead.y, "*", ConsoleColor.Red);
                PrintOnPosition(dwarfRightSide.x, dwarfRightSide.y, "*", ConsoleColor.Red);
                lives--;
            }

            score++;
            Thread.Sleep(simplicity);
            Console.Clear();

            //checks for difficulty
            if (score % 100 == 0)
            {
                simplicity = simplicity - 10;
                level++;
            }
        }

        Console.Clear();
        Console.WriteLine("Game over");
        Console.WriteLine("You died on level {0}. Your score is {1}", level, (score - 40));
        Console.WriteLine("Press [Enter] to exit");
        Console.ReadLine();
        Environment.Exit(0);
    }
}