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enemy.rb
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enemy.rb
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require_relative 'gameobject'
require_relative 'block'
class Enemy < GameObject
# Public: initialize moveless enemy at the specified coordinates.
#
# relative_position - place where center of the enemy will be located.
# price - how much player earns if he kills one enemy.
def initialize(relative_position, price = 200)
super 1.u, 1.u, Gosu::Color::BLUE, relative_position
@damage = 1.0
@price = price
end
# Public: react to interaction with some object by
# calling object's certain method and changing itself.
#
# interaction_object - Object that has intersected.
# intersection_side - The side symbol where the intersection occured.
# :top, :left, :right, :bottom, :none (Default value)
#
# Returns nothing.
def contacted_with(interaction_object, intersection_side = :none)
case interaction_object
when Player
# Die if player has jumped on top
if intersection_side == :top
interaction_object.force_jump
@active = false
@price ||= 200
interaction_object.score += @price
else
interaction_object.add_damage(@damage)
end
end
end
end