Module: GameMechanics

Defined in:
lib/game_mechanics.rb

Constant Summary collapse

@@save_file = 
'../lib/save_game.json'

Instance Method Summary collapse

Instance Method Details

#bar_low ⇒ Object 



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# File 'lib/game_mechanics.rb', line 86

def bar_low
  "-"*61
end

#bar_top ⇒ Object 



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# File 'lib/game_mechanics.rb', line 78

def bar_top
  "_"*27 + " STATS " + "_"*27
end

#combat(bad_guy) ⇒ Object 



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# File 'lib/game_mechanics.rb', line 90

def combat bad_guy
  # create an opponent
  @bad_guy = bad_guy.new
  # scale power of opponent to level of player
  @bad_guy.cur_hp       = @bad_guy.hp*@player.lvl
  @bad_guy.cur_mana     = @bad_guy.mana*@player.lvl
  @bad_guy.dmg      = @bad_guy.dmg*@player.lvl
  puts @bad_guy.name + " says, you kill my father, now you will die!!" unless (@bad_guy.name == "ROUS" or @bad_guy.name == "Skeleton")
  move = 0
  until move == "2"
    begin
      puts # formatting
      puts bar_low + "--"
      puts " #{@player.name} - HP: #{@player.cur_hp} - Mana: #{@player.cur_mana} | - VS - | #{@bad_guy.name} - HP: #{@bad_guy.cur_hp} - Mana: #{@bad_guy.cur_mana}"
      puts bar_low + "--"
      puts # formatting
      puts "#{@bad_guy.name} vs. #{@player.name}, what will you do?"
      puts "[1]. Attack."
      puts "[2]. Run."
      prompt; move = gets.chomp
    end while not (move == "1" or move == "2")
    case
    when move == "1"
      puts # formatting
      if @player.class.to_s == "Knight"
        puts "#{@player.name} swings the mighty sword at the #{@bad_guy.name}."
        puts # formatting
        dmg_mod = (@player.str-10)/2 # knights use their str for damage mod
        @dmg_dlt = dice(@player.dmg) + dmg_mod
      elsif @player.class.to_s == "Wizard"
        begin
          puts "How many magic darts will you shoot?"
          puts "[1]."
          puts "[2]."
          puts "[3]."
        prompt; darts = gets.chomp.to_i
        end while not (darts == 1 or darts == 2 or darts == 3)
        puts # formatting
        puts "#{@player.name} conjures #{darts} magic darts that zip toward the #{@bad_guy.name}."
        dmg_mod = (@player.int-10)/2 # wizards use their int for damage mod
        @dmg_dlt = dice(@player.dmg) + darts*@player.lvl + dmg_mod# more darts more damage, scales with level
        @player.cur_mana = @player.cur_mana - darts*@player.lvl # more darts more mana spent, scales with level
      end
      miss_chance = dice(100)
      agi_boost = (@bad_guy.agi-10)*2 + @bad_guy.dodge
      if (1..agi_boost).include?(miss_chance)
          puts @bad_guy.name + " jumps out of the way, avoiding being hit by " + @player.name + "!"
          puts # formatting
      else
        @dmg_dlt = @dmg_dlt - @bad_guy.armor/4
        @dmg_dlt = 0 if @dmg_dlt < 1
        puts #formatting
        puts "You deal #{@dmg_dlt} damage to the #{@bad_guy.name}." unless @dmg_dlt < 1
        puts # formatting
        @bad_guy.cur_hp = @bad_guy.cur_hp - @dmg_dlt
      end
      if @bad_guy.cur_hp <= 0
        puts "You have slain the #{@bad_guy.name} and won the day!"
        # rewards for winning the battle!
        @player.xp = @player.xp + @bad_guy.xp
        @player.coin = @player.coin + @bad_guy.coin
        save_data
        return
      else
        puts "#{@bad_guy.name} viciously attacks #{@player.name}!"
        puts # formatting
        miss_chance = dice(100)
        agi_boost = (@player.agi-10)*2 + @player.dodge
        if (1..agi_boost).include?(miss_chance)
          puts @player.name + " totally leaps out of the way, avoiding being hit by " + @bad_guy.name + "!"
        else
          dmg_taken = dice(@bad_guy.dmg) - @player.armor/4
          dmg_taken = 0 if dmg_taken < 1
          @player.cur_hp = @player.cur_hp - dmg_taken
          puts "#{@bad_guy.name} hits YOU for #{dmg_taken} damage!" unless dmg_taken < 1
          puts "OUCH!" unless dmg_taken < 1
        end
        puts #formatting
      end
      if @player.cur_hp <= 0
        puts "You were killed by the #{@bad_guy.name}."
        puts "Killed dead."
        puts # formatting
        puts "It happens to the best of us #{@player.name}."
        puts "Fortunately for you, the game of Destiny never ends."
        puts "The game will exit now and you can restart in town."
        puts # formatting
        puts "Better luck next time, eh?"
        exit
      end
    when move == "2"
      puts # formatting
      puts "Sometimes the right thing to do is run."
      puts "This is one of those times."
      puts # formatting
      puts "You shout what is that? and point frantically in the opposite direction."
      puts "The #{@bad_guy.name} turns to look and you high tail it away!"
      save_data
      return
    end
  end
  
end

#dice(sides = 6, &block) ⇒ Object 



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# File 'lib/game_mechanics.rb', line 194

def dice(sides=6,&block)
  if block_given?
    block.call(rand(1..sides))
  else
    rand(1..sides)
  end
end

#load_data ⇒ Object 



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# File 'lib/game_mechanics.rb', line 46

def load_data
  load_info = JSON.parse(File.read(@@save_file))
  role = load_info['role']
  if role == "Knight"
    @player = Knight.new
  elsif role == "Wizard"
    @player = Wizard.new
  end
  # Set stats based off information in load_info
  @player.lvl      = load_info['lvl']
  @player.xp       = load_info['xp']   
  @player.coin     = load_info['coin']
  @player.name     = load_info['name']
  @player.cur_hp   = load_info['cur_hp']
  @player.cur_mana = load_info['cur_mana']
  # Adjust stats based off player level
  @player.hp       = @player.hp*@player.lvl
  @player.mana     = @player.mana*@player.lvl
  @player.dmg      = @player.dmg*@player.lvl
  @player
  # I was trying to do the above assignments with iteration, there has to be a way!
#    load_info.each do |attribute, value|
#      @player.#{attribute} = value unless attribute == "role"
#    end  
end

#prompt ⇒ Object 



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# File 'lib/game_mechanics.rb', line 5

def prompt
  print ">> "
end

#random_encounter ⇒ Object 



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# File 'lib/game_mechanics.rb', line 202

def random_encounter
  chance = dice(20)
  case
  when (1..2).include?(chance)
    puts # formatting
    puts "You get the feeling you are being watched..."
    puts # formatting
  when (3..4).include?(chance)
    puts # formatting
    puts "You notice a coin stuck in the dirt, pry it loose,"
    puts "and place the coin in your wallet."
    puts "Today must be your lucky day, #{@player.name}!"
    @player.xp = @player.xp + 50
    @player.coin = @player.coin + 1
    puts # formatting
  when (5..8).include?(chance)
    puts #format
    puts "A small goblin springs from the shadows and attacks!!"
    puts #format
    combat(Goblin)
  when (9..11).include?(chance)
    puts #format
    puts "You hear squeeking sounds. BIG squeeking sounds!"
    puts #format
    combat(GiantRat)
  when (12..15).include?(chance)
    puts #format
    puts "A kobold peers out of a hole in the wall and then snarls."
    puts #format
    combat(Kobold)
  when (16..18).include?(chance)
    puts #format
    puts "Although you have never heard bones scrape across a floor"
    puts "before, you know without a doubt what approaches..."
    puts #format
    combat(Skeleton)
  when (19..20).include?(chance)
    puts # formatting
    trip_event = dice(3)
    trip_part = "knee" if trip_event == 1
    trip_part = "elbow" if trip_event == 2
    trip_part = "hands" if trip_event == 3
    puts "You stumble and scrape your #{trip_part}."
    puts "You take 1 damage."
    puts # formatting
    @player.cur_hp = @player.cur_hp - 1
  end 
end

#restore_player ⇒ Object 



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# File 'lib/game_mechanics.rb', line 72

def restore_player
  @player.cur_hp   = @player.hp
  @player.cur_mana = @player.mana
  save_data
end

#save_data ⇒ Object 



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# File 'lib/game_mechanics.rb', line 17

def save_data
  case
  when (0..1000).include?(@player.xp)
    @player.lvl = 1
  when (1001..2500).include?(@player.xp)
    @player.lvl = 2
  when (2501..5000).include?(@player.xp)
    @player.lvl = 3
  when (5001..8000).include?(@player.xp)
    @player.lvl = 4
  when (8001..11500).include?(@player.xp)
    @player.lvl = 5
  when (11501..15000).include?(@player.xp)
    @player.lvl = 6
  end
  save_info = {
    role:     @player.class,
    cur_hp:   @player.cur_hp,
    cur_mana: @player.cur_mana,
    xp:       @player.xp,
    lvl:      @player.lvl,
    coin:     @player.coin,
    name:     @player.name
  }
  File.open(@@save_file, "w") do |f|
    f.write(save_info.to_json)
  end
end

#stat_bar(name, xp, lvl, coin, cur_hp, cur_mana) ⇒ Object 



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# File 'lib/game_mechanics.rb', line 82

def stat_bar name, xp, lvl, coin, cur_hp, cur_mana
  "  Name: #{name} | XP: #{xp} | Lvl: #{lvl} | Coin: #{coin} | HP: #{cur_hp} | Mana: #{cur_mana}"
end

#yes_no ⇒ Object 



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# File 'lib/game_mechanics.rb', line 9

def yes_no
  #restrict input to valid answers, but don't worry about case
  begin
    puts "Please enter [yes] or [no]:"
    prompt; @game_select = STDIN.gets.chomp.downcase
  end while not (@game_select == "yes" or @game_select == "no")
end