2048

require 'io/console'
class Base_game
    def initialize
        @table = [[0,0,0,0],[0,0,0,0],[0,0,0,0],[0,0,0,0]]
        @score = 0
        2.times{create_random}
        game
    end

    def create_random
        iszero = true
        if @table.flatten.count(0) == 0
            return 0
        end
        while(iszero)
            int1 = rand(0..3)
            int2 = rand(0..3)
            float1 = rand(0.0..100.0).round(2)
            if @table[int1][int2] == 0
                if float1 <= 10.0
                    @table[int1][int2] = 4
                else
                    @table[int1][int2] = 2
                end
                iszero = false
            end
        end
    end
    def compare
        currindex = 3
        3.times do
            currlvl = 1
            currindex.times do
                if @line[currindex-currlvl] != 0 && @line[currindex] !=  @line[currindex-currlvl]
                    break
                elsif @line[currindex] == @line[currindex-currlvl]
                    temp1 = @line[currindex]
                    @line[currindex] = temp1*2
                    @line[currindex-currlvl] = 0
                    break
                end
                currlvl += 1
            end
            currindex -= 1
        end
    end
    def sort
        3.times do
            number = 0
            3.times do
                if @line[number+1]==0
                    @line[number+1]=@line[number]
                    @line[number]=0
                end
                number += 1
            end
        end
    end

    def game
        while(true)
            @old_table = @table.clone
            system('cls')
            ui_index = 0
            puts "* * * * * * * * * * * * * * * * *"
            4.times do
                puts "* *   *   *   *\n*  #{@table[ui_index][0] if @table[ui_index][0] != 0}    *   #{@table[ui_index][1] if @table[ui_index][1] != 0}  *   #{@table[ui_index][2] if @table[ui_index][2] != 0}  *   #{@table[ui_index][3] if @table[ui_index][3] != 0}  *\n*    *   *   *   *\n* * * * * * * * * * * * * * * * *"
                ui_index += 1
            end
            puts "@score: #{@score}"
            STDIN.raw!
            key = STDIN.getc
            case key
                when 'c'
                    exit
                when 'd'
                    currline = 0
                    4.times do
                        @line = @table[currline].clone
                        compare
                        sort
                        @table[currline] = @line
                        currline += 1
                    end
                when 'a'
                    currline = 0
                    4.times do
                        @line = @table[currline].clone.reverse
                        compare
                        sort
                        @table[currline] = @line.reverse
                        currline += 1
                    end
                when 'w'
                    currline = 0
                    4.times do
                        @line = [@table[0][currline],@table[1][currline],@table[2][currline],@table[3][currline]].reverse
                        compare
                        sort
                        @line.reverse!
                        @table[0][currline] = @line[0]
                        @table[1][currline] = @line[1]
                        @table[2][currline] = @line[2]
                        @table[3][currline] = @line[3]
                        currline += 1
                    end
                when 's'
                    currline = 0
                    4.times do
                        @line = [@table[0][currline],@table[1][currline],@table[2][currline],@table[3][currline]]
                        compare
                        sort
                        @table[0][currline] = @line[0]
                        @table[1][currline] = @line[1]
                        @table[2][currline] = @line[2]
                        @table[3][currline] = @line[3]
                        currline += 1
                    end
            end
            create_random #if @old_table != @table
        end
    end
end
Base_game.new