Stairs Movement

#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=## Stairs Movement v 1.1#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=### FenixFyreX## Final Fantasy VI had stairs that the player actually walked up. Their direction# became two way on these stairs, left or right. This script replicates that# feature.##-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#StairsRegionID = 10   # The region ID to use for designating staircasesStairsOffset   = 4    # The height of one tileset staircase plank (about 4px)CharAnimSpeed  = 2    # The speed at which a sprite cycles through frames#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=## End of Config. Do not edit below.#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#class Game_Map  def stairs?(x,y)    region_id(x,y) == StairsRegionID  endendclass Game_CharacterBase    # give other coders access to checking stairs status  attr_reader :on_stairs, :stairs_d  alias on_stairs? on_stairs    # check whether character is on stairs  def check_stairs    @on_stairs = stairs?(0)  end    # Checks if there are any sets of stairs in the given direction  def stairs?(d)    return case d    when 0      $game_map.stairs?(@x,@y)    when 2      $game_map.stairs?(@x-1,@y+1) || $game_map.stairs?(@x+1,@y+1)    when 4      $game_map.stairs?(@x-1,@y-1) || $game_map.stairs?(@x-1,@y+1)    when 6      $game_map.stairs?(@x+1,@y-1) || $game_map.stairs?(@x+1,@y+1)    when 8      $game_map.stairs?(@x-1,@y-1) || $game_map.stairs?(@x+1,@y-1)    else      false    end  end    # Checks passability in the given direction for stairs  def stairs_passable?(x, y, d)    x2 = $game_map.round_x_with_direction(x, d)    y2 = $game_map.round_y_with_direction(y, d)    return false unless $game_map.valid?(x2, y2)    return true if @through || debug_through?    return false unless map_passable?(x, y, d)    return false if collide_with_characters?(x2, y2)    return true  end    # Moves the character in the given direction diagonally up or down stairs  def move_diag_stairs(d, horz, vert, turn_ok)    x,y = @x+horz,@y+vert    horz = [4,6][[-1,1].index(horz)]    vert = [8,2][[-1,1].index(vert)]    @move_succeed = stairs_passable?(x,y,d)    d = [4,6][[[4,8],[6,8],[4,2],[6,2]].index([horz,vert])%2]    set_direction(d) if turn_ok    if @move_succeed      @x = $game_map.round_x_with_direction(@x, horz)      @y = $game_map.round_y_with_direction(@y, vert)      @real_x = $game_map.x_with_direction(@x, reverse_dir(horz))      @real_y = $game_map.y_with_direction(@y, reverse_dir(vert))      increase_steps    end  end    # Returns the stair vector for the given direction  def stair_vector(d)    x,y = 0,0    case d    when 4,6      x = [-1,1][[4,6].index(d)]      y = $game_map.stairs?(@x+x,@y-1) ? -1 : 1    when 2,8      y = [-1,1][[8,2].index(d)]      x = $game_map.stairs?(@x-1,@y+y) ? -1 : 1    end    [x,y]  end    # Checks whether or not the character is not getting on or off stairs  def midstairs?    @on_stairs && stairs?(reverse_dir(@direction))  end    # Alters original move method to put stairs into effect  alias move_straight_no_stairs move_straight  def move_straight(d, turn_ok = true)    if on_stairs? && stairs?(d)      @stairs_d = d      move_diag_stairs(d, *stair_vector(d), turn_ok)    else      d = @direction if @on_stairs && [2,8].include?(d)      move_straight_no_stairs(d, turn_ok)    end    check_stairs  end    alias move_diagonal_for_stairs move_diagonal  def move_diagonal(horz, vert)    if self.is_a?(Game_Follower) && @preceding_character.on_stairs?      check_stairs      if on_stairs? && stairs?(@preceding_character.stairs_d)        d = @preceding_character.stairs_d        move_diag_stairs(d, *stair_vector(d), true)      else        move_diagonal_for_stairs(horz, vert)      end    else      move_diagonal_for_stairs(horz, vert)    end  end    # Shift the y coordinate of the character's sprite to compensate for stairs  alias shift_y_for_stairs shift_y  def shift_y(*a,&bl)    shift_y_for_stairs(*a,&bl) + (midstairs? ? StairsOffset : 0)  end    # Update the sprite more to create pace-per-step effect on stairs  alias update_anime_count_for_stairs update_anime_count  def update_anime_count(*a,&bl)    ac = @anime_count    update_anime_count_for_stairs(*a,&bl)    @anime_count += CharAnimSpeed if midstairs?  endendclass Game_Player < Game_Character  alias move_straight_for_stairs move_straight  def move_straight(*a,&bl)    @followers.move if stairs_passable?(@x,@y,a[0]) if on_stairs?    move_straight_for_stairs(*a,&bl)  endend#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=## End of Script#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#