Ruby Warrior Presentation: Linear & OOP Solutions

A triumphant quest of adventure, love & destiny all

within a few lines of codehttps://www.bloc.io/ruby-warrior#/

by Sveatoslav Circel aka MEDBEDb

Level 1You see before yourself a long hallway with stairs

at the end. There is nothing in the way. Call

warrior.walk! to walk forward in the Player

'play_turn' method.

Solution:

class Player

def play_turn(warrior)

warrior.walk!

end

end

Level 2It is too dark to see anything, but you smell

sludge nearby. Use warrior.feel.empty? to see if

there is anything in front of you, and

warrior.attack! to fight it. Remember, you can

only do one action (ending in !) per turn.

class Player

def play_turn(warrior)

if warrior.feel.empty?

warrior.walk!

elsif warrior.feel.enemy?

warrior.attack!

end

end

end

class Player

def initialize

@max_health = 20

end

def attacks(warrior)

if warrior.feel.enemy?

warrior.attack!

else

warrior.walk!

end

end

def play_turn(warrior)

attacks(warrior)

end

end

#LINEAR #OBJECT ORIENTED

Solution Solution

Level 3The air feels thicker than before. There must be

a horde of sludge. Be careful not to die! Use

warrior.health to keep an eye on your health, and

warrior.rest! to earn 10% of max health back.

class Player

def play_turn(warrior)

if warrior.feel.empty? and warrior.health == 20

warrior.walk!

elsif warrior.feel.empty? and warrior.health < 20

warrior.rest!

elsif warrior.feel.enemy?

warrior.attack!

end

end

end

#LINEAR #OBJECT ORIENTED

Solution Solutionclass Player

def initialize

@max_health = 20

@mid_health = @max_health/2

end

def attacks(warrior)

if warrior.feel.enemy?

warrior.attack!

else

warrior.walk!

end

end

def play_turn(warrior)

if warrior.feel.empty? and warrior.health < @mid_health

warrior.rest!

else

attacks(warrior)

end

end

end

Level 4

You can hear bow strings being stretched. No new abilities

this time, but you must be careful not to rest while taking

damage. Save a @health instance variable and compare it

on each turn to see if you're taking damage.

class Player

def play_turn(warrior)

@max_health = 20

@current_health = warrior.health

if warrior.feel.empty? and warrior.health == @max_health

warrior.walk!

elsif warrior.feel.empty? and @current_health >= @health

warrior.rest!

elsif warrior.feel.enemy?

warrior.attack!

else

warrior.walk!

end

@health = warrior.health

end

end

class Player

def initialize

@max_health = 20

@mid_health = @max_health/2

@last_health = @max_health

end

def attacks(warrior)

if warrior.feel.enemy?

warrior.attack!

else

warrior.walk!

end

end

def diminishing_health(warrior)

warrior.health < @last_health

end

def play_turn(warrior)

if diminishing_health(warrior)

attacks(warrior)

elsif !diminishing_health(warrior) and warrior.health < @max_health

warrior.rest!

else

attacks(warrior)

end

@last_health = warrior.health

end

end

#LINEAR #OBJECT ORIENTED

Solution Solution

Level 5

You hear cries for help. Captives must need

rescuing. Use warrior.feel.captive? to see if there

is a captive and warrior.rescue! to rescue him.

Don't attack captives.

class Player

def play_turn(warrior)

@max_health = 20

@current_health = warrior.health

if warrior.feel.empty? and warrior.health == @max_health

warrior.walk!

elsif warrior.feel.empty? and @current_health >= @health

warrior.rest!

elsif warrior.feel.enemy?

warrior.attack!

elsif warrior.feel.captive?

warrior.rescue!

else

warrior.walk!

end

@health = warrior.health

end

end

class Player

def initialize

@max_health = 20

@mid_health = @max_health/2

@last_health = @max_health

end

def movement(warrior)

if warrior.feel.enemy?

attacks(warrior)

elsif warrior.feel.captive?

warrior.rescue!

else

warrior.walk!

end

end

def attacks(warrior)

if warrior.feel.enemy?

warrior.attack!

else

warrior.walk!

end

end

#LINEAR #OBJECT ORIENTED

Solution Solution

def diminishing_health(warrior)

warrior.health < @last_health

end

def play_turn(warrior)

if diminishing_health(warrior)

movement(warrior)

elsif !diminishing_health(warrior)

and warrior.health < @max_health

warrior.rest!

else

movement(warrior)

end

@last_health = warrior.health

end

end

Level 6

The wall behind you feels a bit further away in

this room. And you hear more cries for help. You

can walk backward by passing ':backward' as an

argument to walk!. Same goes for feel, rescue!

and attack!. Archers have a limited attack

distance.

class Player

def play_turn(warrior)

@maxlas_health = 20

@danger_health = 9

@current_health = warrior.health

if warrior.feel.empty? and warrior.health == @max_health

warrior.walk!

elsif warrior.feel.empty? and @current_health >= @health

warrior.rest!

elsif warrior.health < @danger_health and @current_health < @health

warrior.walk!(:backward)

elsif warrior.feel.enemy?

warrior.attack!

elsif warrior.feel.captive?

warrior.rescue!

else

warrior.walk!

end

@health = warrior.health

end

end

class Player

def initialize

@max_health = 20

@mid_health = @max_health/2

@last_health = @max_health

end

def movement(warrior)

if warrior.feel.enemy?

attacks(warrior)

elsif warrior.feel.captive?

warrior.rescue!

else

warrior.walk!

end

end

def attacks(warrior)

if warrior.feel.enemy?

warrior.attack!

else

warrior.walk!

end

end

def diminishing_health(warrior)

warrior.health < @last_health

end

def play_turn(warrior)

if diminishing_health(warrior)

and warrior.health <= @mid_health

warrior.walk!(:backward)

elsif diminishing_health(warrior)

movement(warrior)

elsif !diminishing_health(warrior)

and warrior.health < @max_health

warrior.rest!

else

movement(warrior)

end

@last_health = warrior.health

end

end

#LINEAR #OBJECT ORIENTED

Solution Solution

Level 7

You feel a wall right in front of you and an

opening behind you. You are not as effective at

attacking backward. Use warrior.feel.wall? and

warrior.pivot! to turn around.

class Player

def play_turn(warrior)

@max_health = 20

@current_health = warrior.health

@danger_health = 9

if warrior.feel.wall?

warrior.pivot!

elsif warrior.feel.empty? and warrior.health == @max_health

warrior.walk!

elsif warrior.feel.empty? and @current_health >= @health

warrior.rest!

elsif warrior.health < @danger_health and @current_health < @health

warrior.walk!(:backward)

elsif warrior.feel.enemy?

warrior.attack!

elsif warrior.feel.captive?

warrior.rescue!

else

warrior.walk!

end

@health = warrior.health

end

end

class Player

def initialize

@max_health = 20

@mid_health = @max_health/2

@last_health = @max_health

end

def movement(warrior)

if warrior.feel.enemy?

attacks(warrior)

elsif warrior.feel.wall?

warrior.pivot!

elsif warrior.feel.captive?

warrior.rescue!

else

warrior.walk!

end

end

def attacks(warrior)

if warrior.feel.enemy?

warrior.attack!

else

warrior.walk!

end

end

def diminishing_health(warrior)

warrior.health < @last_health

end

def play_turn(warrior)

if diminishing_health(warrior)

and warrior.health <= @mid_health

warrior.walk!(:backward)

elsif diminishing_health(warrior)

movement(warrior)

elsif !diminishing_health(warrior)

and warrior.health < @max_health

warrior.rest!

else

movement(warrior)

end

@last_health = warrior.health

end

end

#LINEAR #OBJECT ORIENTED

Solution Solution

Level 8

You hear the mumbling of wizards. Beware of

their deadly wands! Good thing you found a bow.

Use warrior.look to determine your surroundings,

and warrior.shoot! to fire an arrow.

Linear Solution:class Player

def play_turn(warrior)

@max_health = 20

@current_health = warrior.health

@danger_health = 9

if warrior.feel.wall?

warrior.pivot!

elsif warrior.feel.captive?

warrior.rescue!

elsif warrior.look.find_all {|space| space.captive? }.size.to_i == 1

warrior.walk!

elsif warrior.look.find_all {|space| space.enemy? }.size.to_i == 2

warrior.shoot!

elsif warrior.look.find_all {|space| space.enemy? }.size.to_i == 3

warrior.shoot!

elsif warrior.look.find_all {|space| space.enemy? }.size.to_i == 0

warrior.walk!

elsif warrior.health < @danger_health and @current_health < @health

warrior.walk!(:backward)

else

warrior.shoot!

end

@health = warrior.health

end

end

OOP Solution:class Player

def initialize

@max_health = 20

@mid_health = @max_health/2

@last_health = @max_health

end

def get_enemies(warrior)

find_enemies(warrior) or find_enemies(warrior, :backward)

end

def find_enemies(warrior, where = :forward)

enemy_spaces = warrior.look(where).find_all {|space| space.enemy? }

return enemy_spaces.any?

end

def get_captives(warrior)

find_captives(warrior) or find_captives(warrior, :backward)

end

def find_captives(warrior, where = :forward)

captive_spaces = warrior.look(where).find_all {|space| space.captive? }

return captive_spaces.any?

end

def rescues(warrior)

if warrior.feel.captive?

warrior.rescue!

else

warrior.walk!

end

end

def movement(warrior)

if get_captives(warrior)

rescues(warrior)

elsif get_enemies(warrior)

attacks(warrior)

elsif warrior.feel.wall?

warrior.pivot!

else

warrior.walk!

end

end

def attacks(warrior)

if warrior.feel.enemy?

warrior.attack!

elsif find_enemies(warrior)

warrior.shoot!

end

end

def diminishing_health(warrior)

warrior.health < @last_health

end

def play_turn(warrior)

if diminishing_health(warrior)

and warrior.health <= @mid_health

warrior.walk!(:backward)

elsif diminishing_health(warrior)

movement(warrior)

elsif !diminishing_health(warrior)

and warrior.health < @max_health

warrior.rest!

elsif warrior.feel.captive?

warrior.rescue!

else

movement(warrior)

end

@last_health = warrior.health

end

end

Level 9

Time to hone your skills and apply all of the

abilities that you have learned. Watch your

back.

Linear Solution:class Player

def play_turn(warrior)

@max_health = 20

@current_health = warrior.health

@mid_health = 9

@danger_health = 3

if warrior.feel.wall?

warrior.pivot!

elsif warrior.feel.captive?

warrior.rescue!

elsif warrior.look(:backward).find_all {|space| space.enemy? }.size.to_i == 1

warrior.shoot!(:backward)

elsif warrior.look.find_all {|space| space.enemy? }.size.to_i == 2

warrior.shoot!

elsif warrior.health == @max_health

warrior.walk!

elsif warrior.look.find_all {|space| space.enemy? }.size.to_i == 0 and @current_health >= @health

warrior.rest!

elsif warrior.health < @mid_health and @current_health < @health

warrior.walk!(:backward)

else

warrior.shoot!

end

@health = warrior.health

end

end

OOP Solution:class Player

def initialize

@max_health = 20

@mid_health = @max_health/2

@danger_health = @max_health * 3 / 4

@last_health = @max_health

end

def get_enemies(warrior)

find_enemies(warrior) or

find_enemies(warrior, :backward)

end

def find_enemies(warrior, where = :forward)

enemy_spaces =

warrior.look(where).find_all {|space|

space.enemy? }

return enemy_spaces.any?

end

def get_captives(warrior)

find_captives(warrior) or

find_captives(warrior, :backward)

end

def find_captives(warrior, where = :forward)

captive_spaces =

warrior.look(where).find_all {|space|

space.captive? }

return captive_spaces.any?

end

def rescues(warrior)

if warrior.feel.captive?

warrior.rescue!

else

warrior.walk!

end

end

def movement(warrior)

if get_captives(warrior)

rescues(warrior)

elsif get_enemies(warrior)

attacks(warrior)

elsif warrior.feel.wall?

warrior.pivot!

else

warrior.walk!

end

end

def attacks(warrior)

if warrior.feel(:backward).enemy?

warrior.pivot!

elsif warrior.feel.enemy?

warrior.attack!

elsif

find_enemies(warrior, :backward)

warrior.shoot!(:backward)

elsif find_enemies(warrior)

warrior.shoot!

end

end

def diminishing_health(warrior)

warrior.health < @last_health

end

def play_turn(warrior)

if diminishing_health(warrior) and warrior.health <= @mid_health

warrior.walk!(:backward)

elsif diminishing_health(warrior)

movement(warrior)

elsif !diminishing_health(warrior) and warrior.health < @max_health

warrior.rest!

elsif warrior.feel.captive?

warrior.rescue!

else

movement(warrior)

end

@last_health = warrior.health

end

end