Scissors, Paper, Rock Game - Is this the code efficient?

#Greeting - greets the player and gets their name.
def player
puts "Enter player name: "
name = gets
puts "Hi #{name}Lets play scissors, paper, rock."
return name
end


#Weapon Selection - gets the players weapon of choice.
def select_weapon
puts "Please select your weapon of choice by type: 1 for scissors, 2 for paper or 3 for rock: "
weapon = gets.to_i

if weapon == 1
return "scissors"

elsif weapon == 2
return "paper"

elsif weapon == 3
return "rock"

else 
return "error"
end

end


#AI Weapon - the computer picks a weapon.
def ai_select_weapon
aispr = rand(1..3)

if aispr == 1
return "scissors"

elsif aispr == 2
return "paper"

elsif aispr == 3
return "rock"


end  
end



#Play! - Runs the game.

name = player
weapon = select_weapon
aispr = ai_select_weapon

puts "You have selected #{weapon}"
puts "The hivemind has selected #{aispr}"
puts "#{weapon} vs #{aispr}"

if weapon == "scissors" and aispr == "paper"
puts "#{name} WINS a cutting victory!"

elsif weapon == "paper" and aispr == "rock"
puts "#{name} surrounds the enemy for the WIN"

elsif weapon == "rock" and aispr == "scissors"
puts "SMASHING! #{name} takes the WIN"

elsif weapon.eql?(aispr)
puts "#{name} and the computer tied. How boring, try again"

else puts "You lose. Try again"

end