Class: Entity::Teleporter

Inherits:
Entity
  • Object
show all
Defined in:
lib/game_2d/entity/teleporter.rb

Constant Summary

Constants included from EntityConstants

EntityConstants::CELL_WIDTH_IN_PIXELS, EntityConstants::MAX_VELOCITY, EntityConstants::PIXEL_WIDTH, EntityConstants::WIDTH

Instance Attribute Summary

Attributes inherited from Entity

#a, #moving, #space, #x, #x_vel, #y, #y_vel

Instance Method Summary collapse

Methods inherited from Entity

#accelerate, #all_state, #angle_to_vector, #as_json, #bottom_cell_y, #direction_to, #doomed?, #draw, #draw_angle, #drop_diagonal, #empty_above?, #empty_on_left?, #empty_on_right?, #empty_underneath?, #entities_obstructing, #going_past_entity, #grab!, #grabbed?, #harmed_by, #i_hit, #initialize, #left_cell_x, #move, #move_x, #move_y, #moving?, #next_to, #occupied_cells, #opaque, #pixel_x, #pixel_y, #release!, #right_cell_x, #sleep_now?, #top_cell_y, #update_from_json, #vector_to_angle, #wake!, #warp

Methods included from ClassMethods

#bottom_cell_y_at, #constrain_velocity, #left_cell_x_at, #right_cell_x_at, #top_cell_y_at

Methods included from Transparency

#transparent?

Methods included from Registerable

#nullsafe_registry_id, #registry_id, #registry_id=, #registry_id?, #registry_id_safe

Methods included from Serializable

#<=>, #==, #all_state, as_json, #eql?, from_json, #hash, #to_json, #update_from_json

Constructor Details

This class inherits a constructor from Entity

Instance Method Details

#destroy! ⇒ Object 



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# File 'lib/game_2d/entity/teleporter.rb', line 30

def destroy!
  # destroy destination
end

#draw_zorder ⇒ Object 



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# File 'lib/game_2d/entity/teleporter.rb', line 36

def draw_zorder; ZOrder::Teleporter end

#image_filename ⇒ Object 



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# File 'lib/game_2d/entity/teleporter.rb', line 34

def image_filename; "tele.gif"; end

#should_fall? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/game_2d/entity/teleporter.rb', line 7

def should_fall?; false; end

#to_s ⇒ Object 



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# File 'lib/game_2d/entity/teleporter.rb', line 38

def to_s
  destinations = space.possessions(self).collect do |d|
    "#{d.x}x#{d.y}"
  end.join(', ')
  "#{super} => [#{destinations}]"
end

#update ⇒ Object 



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# File 'lib/game_2d/entity/teleporter.rb', line 9

def update
  space.entities_overlapping(x, y).each do |overlap|
    next if overlap == self
    next if (overlap.x - x).abs > WIDTH/2
    next if (overlap.y - y).abs > HEIGHT/2
    dest = space.possessions(self)
    case dest.size
      when 1 then
        dest = dest.first
        if overlap.entities_obstructing(dest.x, dest.y).empty?
          overlap.warp(dest.x, dest.y)
          overlap.wake!
        end
      when 0 then
        $stderr.puts "#{self}: No destination"
      else
        $stderr.puts "#{self}: Multiple destinations: #{dest.inspect}"
    end
  end
end