[Author: fukuyama] Caterpillar

# train_actor
=begin

Caterpillar walking script

Copyright © 2005 fukuyama

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

http://www.gnu.org/licenses/lgpl.html
http://www.opensource.gr.jp/lesser/lgpl.ja.html

=end

# Config.rb
#==============================================================================
# ■ Train_Actor::Config
#------------------------------------------------------------------------------
# Caterpillar movement of actor is carried out on map
#==============================================================================

module Train_Actor

# ●Switch setup for transparent status
# When true, switch control is used
# TRANSPARENT_SWITCH = true
TRANSPARENT_SWITCH = false

# ●Switch number for transparent status
# When TRANSPARENT_SWITCH is true, transparency will be activated when the switch of this number is on
TRANSPARENT_SWITCHES_INDEX = 20

# ●Maximum number of actors
# There will be support for a large number of people in a party in the future...
TRAIN_ACTOR_SIZE_MAX = 7

# Constants
DOWN_LEFT = 1
DOWN_RIGHT = 3
UP_LEFT = 7
UP_RIGHT = 9
JUMP = 5

end

# rgss

# Spriteset_Map_Module.rb
#==============================================================================
# ■ Spriteset_Map_Module
#------------------------------------------------------------------------------
# Caterpillar movement of actor is carried out on map
#==============================================================================

module Train_Actor

  module Spriteset_Map_Module

    def setup_actor_character_sprites?
      return @setup_actor_character_sprites_flag != nil
    end

    def setup_actor_character_sprites(characters)
      if !setup_actor_character_sprites?
        for character in characters.reverse
          @character_sprites.unshift(
          Sprite_Character.new(@viewport1, character)
          )
        end
      @setup_actor_character_sprites_flag = true
      end
    end

  end

end

class Spriteset_Map
  include Train_Actor::Spriteset_Map_Module
end

# Scene_Map_Module.rb
#==============================================================================
# ■ Scene_Map_Module
#------------------------------------------------------------------------------
# Caterpillar movement of actor is carried out on map
#==============================================================================

module Train_Actor

  module Scene_Map_Module
    def setup_actor_character_sprites(characters)
      @spriteset.setup_actor_character_sprites(characters)
    end
  end

end

class Scene_Map
  include Train_Actor::Scene_Map_Module
end

# Game_Party_Module.rb
#==============================================================================
# ■ Game_Party_Module
#------------------------------------------------------------------------------
# Caterpillar movement of actor is carried out on map
#==============================================================================

module Train_Actor

  module Game_Party_Module
  attr_reader :characters

    def actors_dead?
      for actor in actors
        if actor.dead?
          return true
        end
      end
      return false
    end

    def update_party_order
      if not actors_dead?
        return actors
      end
      alive_actors = []
      dead_actors = []
      for actor in actors
        if actor.dead?
          dead_actors.push actor
        else
          alive_actors.push actor
        end
      end
      return alive_actors + dead_actors
    end

    def setup_actor_character_sprites
      if @characters.nil?
        @characters = []
        for i in 1 ... TRAIN_ACTOR_SIZE_MAX
          @characters.push(Game_Party_Actor.new)
        end
      end
      setup_actors = update_party_order
      for i in 1 ... TRAIN_ACTOR_SIZE_MAX
        @characters[i - 1].setup(setup_actors[i])
      end
      if $scene.class.method_defined?('setup_actor_character_sprites')
        $scene.setup_actor_character_sprites(@characters)
      end
    end

    def update_party_actors
      update_party_order
      setup_actor_character_sprites
      transparent = $game_player.transparent
      if transparent == false
        if TRANSPARENT_SWITCH
          transparent = $game_switches[TRANSPARENT_SWITCHES_INDEX]
        end
      end
      for character in @characters
        character.transparent = transparent
        character.move_speed = $game_player.move_speed
        character.step_anime = $game_player.step_anime
        character.update
      end
    end

    def moveto_party_actors( x, y )
      setup_actor_character_sprites
      for character in @characters
        character.moveto( x, y )
      end
      if @move_list == nil
        @move_list = []
      end
      move_list_setup
    end

    def move_party_actors
      if @move_list == nil
        @move_list = []
        move_list_setup
      end
      @move_list.each_index do |i|
      if @characters[i] != nil
        case @move_list[i].type
        when Input::DOWN
          @characters[i].move_down(@move_list[i].args[0])
        when Input::LEFT
          @characters[i].move_left(@move_list[i].args[0])
        when Input::RIGHT
          @characters[i].move_right(@move_list[i].args[0])
        when Input::UP
          @characters[i].move_up(@move_list[i].args[0])
        when DOWN_LEFT
          @characters[i].move_lower_left
        when DOWN_RIGHT
          @characters[i].move_lower_right
        when UP_LEFT
          @characters[i].move_upper_left
        when UP_RIGHT
          @characters[i].move_upper_right
        when JUMP
          @characters[i].jump(@move_list[i].args[0],@move_list[i].args[1])
        end
      end
    end
  end

  class Move_List_Element

    def initialize(type,args)
      @type = type
      @args = args
    end

    def type
      return @type
    end

    def args
      return @args
    end
  end

  def move_list_setup
    for i in 0 .. TRAIN_ACTOR_SIZE_MAX
      @move_list[i] = nil
    end
  end

  def add_move_list(type,*args)
    @move_list.unshift(Move_List_Element.new(type,args)).pop
  end

  def move_down_party_actors(turn_enabled = true)
    move_party_actors
    add_move_list(Input::DOWN,turn_enabled)
  end

  def move_left_party_actors(turn_enabled = true)
    move_party_actors
    add_move_list(Input::LEFT,turn_enabled)
  end

  def move_right_party_actors(turn_enabled = true)
    move_party_actors
    add_move_list(Input::RIGHT,turn_enabled)
  end

  def move_up_party_actors(turn_enabled = true)
    move_party_actors
    add_move_list(Input::UP,turn_enabled)
  end

  def move_lower_left_party_actors
    move_party_actors
    add_move_list(DOWN_LEFT)
  end

  def move_lower_right_party_actors
    move_party_actors
    add_move_list(DOWN_RIGHT)
  end

  def move_upper_left_party_actors
    move_party_actors
    add_move_list(UP_LEFT)
  end

  def move_upper_right_party_actors
    move_party_actors
    add_move_list(UP_RIGHT)
  end

  def jump_party_actors(x_plus, y_plus)
    move_party_actors
    add_move_list(JUMP,x_plus, y_plus)
  end

end

end

class Game_Party
  include Train_Actor::Game_Party_Module
end

# Game_Player_Module.rb
#==============================================================================
# ■ Game_Player_Module
#------------------------------------------------------------------------------
# Caterpillar movement of actor is carried out on map
#==============================================================================

module Train_Actor

  module Game_Player_Module
  attr_reader :move_speed
  attr_reader :step_anime

    def update_party_actors
      $game_party.update_party_actors
      $game_party.actors.each do |actor|
      if actor.dead?
        next
      end
      @character_name = actor.character_name
      @character_hue = actor.character_hue
      break
    end
  end

  def update
    update_party_actors
    super
  end

  def moveto( x, y )
    $game_party.moveto_party_actors( x, y )
    super( x, y )
  end

  def move_down(turn_enabled = true)
    if passable?(@x, @y, Input::DOWN)
      $game_party.move_down_party_actors(turn_enabled)
    end
    super(turn_enabled)
  end

  def move_left(turn_enabled = true)
    if passable?(@x, @y, Input::LEFT)
      $game_party.move_left_party_actors(turn_enabled)
    end
    super(turn_enabled)
  end

  def move_right(turn_enabled = true)
    if passable?(@x, @y, Input::RIGHT)
      $game_party.move_right_party_actors(turn_enabled)
    end
    super(turn_enabled)
  end

  def move_up(turn_enabled = true)
    if passable?(@x, @y, Input::UP)
      $game_party.move_up_party_actors(turn_enabled)
    end
    super(turn_enabled)
  end

  def move_lower_left
    # When possible to move from down→left or from left→down
    if (passable?(@x, @y, Input::DOWN) and passable?(@x, @y + 1, Input::LEFT)) or
    (passable?(@x, @y, Input::LEFT) and passable?(@x - 1, @y, Input::DOWN))
      $game_party.move_lower_left_party_actors
    end
    super
  end

  def move_lower_right
    # When possible to move from down→right or from right→down
    if (passable?(@x, @y, Input::DOWN) and passable?(@x, @y + 1, Input::RIGHT)) or
    (passable?(@x, @y, Input::RIGHT) and passable?(@x + 1, @y, Input::DOWN))
      $game_party.move_lower_right_party_actors
    end
    super
  end

  def move_upper_left
    # When possible to move from up→left or from left→up
    if (passable?(@x, @y, Input::UP) and passable?(@x, @y - 1, Input::LEFT)) or
    (passable?(@x, @y, Input::LEFT) and passable?(@x - 1, @y, Input::UP))
       $game_party.move_upper_left_party_actors
    end
    super
  end

  def move_upper_right
    # When possible to move from up→right or from right→up
    if (passable?(@x, @y, Input::UP) and passable?(@x, @y - 1, Input::RIGHT)) or
    (passable?(@x, @y, Input::RIGHT) and passable?(@x + 1, @y, Input::UP))
      $game_party.move_upper_right_party_actors
    end
    super
  end

  def jump(x_plus, y_plus)
  # New coordinates are calculated
    new_x = @x + x_plus
    new_y = @y + y_plus
    # When addition values are (0,0), it is possible to jump to the destination
    if (x_plus == 0 and y_plus == 0) or passable?(new_x, new_y, 0)
      $game_party.jump_party_actors(x_plus, y_plus)
    end
    super(x_plus, y_plus)
  end
end

end

class Game_Player
  include Train_Actor::Game_Player_Module
end

# Game_Event_Module.rb
#==============================================================================
# ■ Game_Event_Module
#------------------------------------------------------------------------------
# Caterpillar movement of actor is carried out on map
#==============================================================================

module Train_Actor

  module Game_Event_Module
#--------------------------------------------------------------------------
# ● Judgement determined
# x : X coordinates
# y : Y coordinates
# d : Direction (0,2,4,6,8) ※ 0 = Checks if all directions are not able to be passed (for a jump)
# return : Passing is impossible (false), possible (true)
#--------------------------------------------------------------------------
    def passable?(x, y, d)
      result = super(x, y, d)
      if result
      # New coordinates are searched for
        new_x = x + (d == 6 ? 1 : d == 4 ? -1 : 0)
        new_y = y + (d == 2 ? 1 : d == 8 ? -1 : 0)
      # Loops for actor in train
      for actor in $game_party.characters
# When displayed
        if not actor.character_name.empty?
# When actor's coordinates correspond to the destination
          if actor.x == new_x and actor.y == new_y
# When event
            if self != $game_player
# Passing is impossible
              return false
            end
          end
        end
      end
    end
    return result
  end
end

end

class Game_Event
  include Train_Actor::Game_Event_Module
end

# Game_Party_Actor.rb
#==============================================================================
# ■ Game_Party_Actor
#------------------------------------------------------------------------------
# Caterpillar movement of actor is carried out on map
#==============================================================================

module Train_Actor

  class Game_Party_Actor < Game_Character
  attr_writer :move_speed
  attr_writer :step_anime

    def initialize
      super()
      @through = true
    end

    def setup(actor)
    # The file name and hue of the character are set
      if actor != nil and (not actor.dead?) # When dead, it is erased for the time being...
        @character_name = actor.character_name
        @character_hue = actor.character_hue
      else
        @character_name = ""
        @character_hue = 0
      end
      # Opacity and blending method are initialized
      @opacity = 255
      @blend_type = 0
    end

    def screen_z(height = 0)
      if $game_player.x == @x and $game_player.y == @y
        return $game_player.screen_z(height) - 1
      end
      super(height)
    end

#--------------------------------------------------------------------------
# ● Move down
# turn_enabled : Flag that permits direction change on the spot
#--------------------------------------------------------------------------
      def move_down(turn_enabled = true)
      # Face down
        if turn_enabled
          turn_down
        end
        # When possible to pass
        if passable?(@x, @y, Input::DOWN)
        # Face down
          turn_down
        # Update coordinates
          @y += 1
        end
      end
#--------------------------------------------------------------------------
# ● Move left
# turn_enabled : Flag that permits direction change on the spot
#--------------------------------------------------------------------------
      def move_left(turn_enabled = true)
        # Face left
        if turn_enabled
          turn_left
        end
        # When possible to pass
        if passable?(@x, @y, Input::LEFT)
        # Face left
          turn_left
        # Update coordinates
          @x -= 1
        end
      end
#--------------------------------------------------------------------------
# ● Move right
# turn_enabled : Flag that permits direction change on the spot
#--------------------------------------------------------------------------
      def move_right(turn_enabled = true)
        # Face right
        if turn_enabled
          turn_right
        end
        # When possible to pass
        if passable?(@x, @y, Input::RIGHT)
          # Face right
          turn_right
          # Update coordinates
          @x += 1
        end
      end
#--------------------------------------------------------------------------
# ● Move up
# turn_enabled : Flag that permits direction change on the spot
#--------------------------------------------------------------------------
      def move_up(turn_enabled = true)
        # Face up
        if turn_enabled
          turn_up
        end
        # When possible to pass
        if passable?(@x, @y, Input::UP)
          # Face up
          turn_up
          # Update coordinates
          @y -= 1
        end
      end
#--------------------------------------------------------------------------
# ● Move lower left
#--------------------------------------------------------------------------
      def move_lower_left
        # When no direction fixation
        unless @direction_fix
          # Turn left when facing right, turn down when facing up
          @direction = (@direction == Input::RIGHT ? Input::LEFT : @direction == Input::UP ? Input::DOWN : @direction)
        end
        # When possible to move from down→left or from left→down
        if (passable?(@x, @y, Input::DOWN) and passable?(@x, @y + 1, Input::LEFT)) or
        (passable?(@x, @y, Input::LEFT) and passable?(@x - 1, @y, Input::DOWN))
        # Update coordinates
          @x -= 1
          @y += 1
        end
      end
#--------------------------------------------------------------------------
# ● Move lower right
#--------------------------------------------------------------------------
      def move_lower_right
      # When no direction fixation
        unless @direction_fix
        # Turn right when facing left, turn down when facing up
          @direction = (@direction == Input::LEFT ? Input::RIGHT : @direction == Input::UP ? Input::DOWN : @direction)
        end
        # When possible to move from down→right or from right→down
        if (passable?(@x, @y, Input::DOWN) and passable?(@x, @y + 1, Input::RIGHT)) or
        (passable?(@x, @y, Input::RIGHT) and passable?(@x + 1, @y, Input::DOWN))
          # Update coordinates
          @x += 1
          @y += 1
        end
      end
#--------------------------------------------------------------------------
# ● move upper left
#--------------------------------------------------------------------------
      def move_upper_left
        # When no direction fixation
        unless @direction_fix
        # Turn left when facing right, turn up when facing down
          @direction = (@direction == Input::RIGHT ? Input::LEFT : @direction == Input::DOWN ? Input::UP : @direction)
        end
        # When possible to move from up→left or from left→up
        if (passable?(@x, @y, Input::UP) and passable?(@x, @y - 1, Input::LEFT)) or
        (passable?(@x, @y, Input::LEFT) and passable?(@x - 1, @y, Input::UP))
          # Update coordinates
          @x -= 1
          @y -= 1
        end
      end
#--------------------------------------------------------------------------
# ● move upper right
#--------------------------------------------------------------------------
  def move_upper_right
    # When no direction fixation
    unless @direction_fix
    # Turn right when facing left, turn up when facing down
      @direction = (@direction == Input::LEFT ? Input::RIGHT : @direction == Input::DOWN ? Input::UP : @direction)
    end
    # When possible to move from up→right or from right→up
    if (passable?(@x, @y, Input::UP) and passable?(@x, @y - 1, Input::RIGHT)) or
    (passable?(@x, @y, Input::RIGHT) and passable?(@x + 1, @y, Input::UP))
    # Update coordinates
      @x += 1
      @y -= 1
    end
  end
end

end