#===============================================================================
# Mouse System
# By Jet10985 (Jet)
# Some Code by: Woratana, Berka
# Uses: Modern Algebra's Path Finding Script
# Super Heavy Testing/Debug Help/Requested By: Nathanial (Beleren)
#===============================================================================
# This script will allow full use of the mouse inside of rmvx for various
# purposes.
# This script has: 6 customization options.
#===============================================================================
# Overwritten Methods:
# None
#-------------------------------------------------------------------------------
# Aliased methods:
# Scene_Map: update, terminate, update_transfer_player
# Input: update, trigger?, press?, repeat?, dir4, dir8
# Window_Selectable: update, top_row=
# Scene_File: update
# Window_NameInput: update
# Game_Temp: initialize
# Game_Event: initialize, update
#===============================================================================

#==============================================================================
#  Path Finding
#  Version: 2.0
#  Author: modern algebra (rmrk.net)
#  Date: April 10, 2008
#==============================================================================
#  Thanks:
#    Patrick Lester! For his tutorial on A* Pathfinding algorithm (found at: 
#        http://www.gamedev.net/reference/articles/article2003.asp) as well as 
#        another amazingly helpful tutorial on using binary heaps (found at: 
#        http://www.policyalmanac.org/games/binaryHeaps.htm). Without his excellent
#        tutorials, this script would not exist. So major thanks to him.
#    Zeriab, for tricking me into believing that this was an actual exercise.
#        Also, his table printout actually makes Tables useable :P
#==============================================================================

=begin
Showing text above event when mouse hovers:

If you want a message to appear over an event's head if the mouse is hovering
over the event, put this comment in the event:

MOUSE TEXT MESSAGE HERE

everything after TEXT will be the hovering display.
--------------------------------------------------------------------------------
Change mouse picture above event when mouse hovers:

If you want the mouse's picture to temporarily change whne over an event, put
this comment in the event

MOUSE PIC NAME/NUMBER

if you put a name, the mouse will become that picture, but if you put a number
then the mouse will become the icon that is the id number
--------------------------------------------------------------------------------
Specific mouse click movement routes:

If you want the player to land specifically in a square around an event when
they click to move on the event, put one of these comments in the event:

MOUSE MOVE UP/LEFT/RIGHT/DOWN

only put the direction that you want the player to land on.
--------------------------------------------------------------------------------
Click to activate:

If you want an event to automatically start when it is clicked on, place
this in an event comment:

MOUSE CLICK
--------------------------------------------------------------------------------
Don't stop the player when walking over a touch event:

By default, this script will stop a mouse-caused movement if the player walks
over/under a player touch/event touch event. If you want the event to activate,
but for the player to keep walking to their destination, put this comment in the
event:

MOUSE NOSTOP
--------------------------------------------------------------------------------
Ignore Events:

To have an event be ignored when the mouse makes it's movement path (as if the
event isn't there), put this comment in the event:

MOUSE THROUGH
--------------------------------------------------------------------------------
Extra Notes:

In selectable windows that have more items than what's shown, players can
either put the mouse below the window to scroll down, OR use the mouse's
scroll wheel to scroll up/down.

You can activate action button events by standing next to the event and clicking
on it with the mouse.
=end
module JetMouse
  
  # If you are using a graphic, this is it.
  # It must be in the Graphics/System folder.
  CURSOR_PICTURE = "cursor-mouse"
  
  # If you aren't using a graphic, this icon will be the mouse.
  # To use the icon, just put a non-existant picture as the above config
  ICON_INDEX = 3
  
  # Do you want the player to be able to move by clicking the mouse?
  ALLOW_MOUSE_MOVEMENT = true
  
  # Do you want mouse movement to do 8-dir walking?
  # Requires 8-Dir Walking by Jet.
  DO_8DIR_WALKING = false
  
  # Turning this switch on will make the mouse invisible and unusuable until
  # the switch is turned off
  TURN_MOUSE_OFF_SWITCH = 20
  
  # Do you want the mouse to check for mouse wheel scrolling in selectbale
  # windows? Not using this may reduce some rare cases of lag.
  USE_WHEEL_DETECTION = false
  
end

#===============================================================================
# DON'T EDIT FURTHER UNLESS YOU KNOW WHAT TO DO.
#===============================================================================
module Mouse
  
  Get_Message = Win32API.new('user32', 'GetMessage', 'plll', 'l')
  GetAsyncKeyState = Win32API.new("user32", "GetAsyncKeyState", 'i', 'i')
  GetKeyState = Win32API.new("user32", "GetKeyState", 'i', 'i')
  SetCursorPos = Win32API.new('user32', 'SetCursorPos', 'nn', 'n')
  GetCursorPo = Win32API.new('user32', 'GetCursorPos', 'p', 'i')
  ScreenToClient = Win32API.new('user32', 'ScreenToClient', 'lp', 'i')
  FindWindowA = Win32API.new('user32', 'FindWindowA', 'pp', 'l')
  GetClientRect = Win32API.new('user32', 'GetClientRect', 'lp', 'i')
  GetWindowRect = Win32API.new('user32', 'GetWindowRect', 'lp', 'i')
  contents = File.open('Game.ini', 'r') { |f| f.read }
  q = contents[/Title=(.+)/].nil? ? "cccc" : $1
  @handle = FindWindowA.call('RGSS Player', q)
  module_function
  
  Point = Struct.new(:x, :y)
  
  Message = Struct.new(:message, :wparam, :lparam, :pt)
  
  Param = Struct.new(:x, :y, :scroll)
  
  Scroll = 0x0000020A
  
  def hiword(dword); return ((dword&0xffff0000) >> 16)&0x0000ffff; end
  def loword(dword); return dword&0x0000ffff; end
    
  def word2signed_short(value)
    return value if (value&0x8000) == 0
    return -1 * ((~value&0x7fff) + 1)
  end
  
  def unpack_dword(buffer, offset = 0)
    ret = buffer[offset + 0]&0x000000ff
    ret |= (buffer[offset + 1] << (8 * 1))&0x0000ff00
    ret |= (buffer[offset + 2] << (8 * 2))&0x00ff0000
    ret |= (buffer[offset + 3] << (8 * 3))&0xff000000
    return ret
  end
  
  def unpack_msg(buffer)
    msg = Message.new; msg.pt = Point.new
    msg.message=unpack_dword(buffer,4*1)
    msg.wparam = unpack_dword(buffer, 4 * 2)
    msg.lparam = unpack_dword(buffer,4*3)
    msg.pt.x = unpack_dword(buffer, 4 * 5)
    msg.pt.y = unpack_dword(buffer, 4 * 6)
    return msg
  end
  
  def wmcallback(msg)
    return unless msg.message == Scroll
    param = Param.new
    param.x = word2signed_short(loword(msg.lparam))
    param.y = word2signed_short(hiword(msg.lparam))
    param.scroll = word2signed_short(hiword(msg.wparam))
    return [param.x, param.y, param.scroll]
  end
  
  def click?(button)
    return false if $game_switches[JetMouse::TURN_MOUSE_OFF_SWITCH]
    return true if @keys.include?(button)
    return false
  end 
  
  def press?(button)
    return false if $game_switches[JetMouse::TURN_MOUSE_OFF_SWITCH]
    return true if @press.include?(button)
    return false
  end
  
  def set_pos(x_pos = 0, y_pos = 0)
    width,height = client_size
    if (x_pos.between?(0, width) && y_pos.between?(0, height))
      SetCursorPos.call(client_pos[0] + x_pos,client_pos[1] + y_pos)
    end
  end
  
  def update
    return if $game_switches[JetMouse::TURN_MOUSE_OFF_SWITCH]
    @pos = Mouse.pos
    @keys, @press = [], []
    @keys.push(1) if GetAsyncKeyState.call(1)&0x01==1
    @keys.push(2) if GetAsyncKeyState.call(2)&0x01==1
    @keys.push(3) if GetAsyncKeyState.call(4)&0x01==1
    @press.push(1) if pressed?(1)
    @press.push(2) if pressed?(2)
    @press.push(3) if pressed?(4)
  end 
  
  def pressed?(key)
    return true unless GetKeyState.call(key).between?(0, 1)
    return false
  end
  
  def global_pos
    pos = [0, 0].pack('ll')
    GetCursorPo.call(pos) != 0 ? (return pos.unpack('ll')):(return [0, 0])
  end
  
  def pos
    return 0, 0 if $game_switches[JetMouse::TURN_MOUSE_OFF_SWITCH]
    x, y = screen_to_client(*global_pos)
    width, height = client_size
    begin
      x = 0 if x <= 0; y = 0 if y <= 0
      x = width if x >= width; y = height if y >= height
      return x, y
    end
  end
  
  def screen_to_client(x, y)
    return nil unless x && y
    pos = [x, y].pack('ll')
    ScreenToClient.call(@handle, pos) != 0 ?(return pos.unpack('ll')):(return [0, 0])
  end
  
  def client_size
    rect = [0, 0, 0, 0].pack('l4')
    GetClientRect.call(@handle, rect)
    right,bottom = rect.unpack('l4')[2..3]
    return right, bottom
  end
  
  def client_pos
    rect=[0, 0, 0, 0].pack('l4')
    GetWindowRect.call(@handle, rect)
    left, upper = rect.unpack('l4')[0..1]
    return left + 4, upper + 30
  end
  
  def grid
    return [-1, -1] if $game_switches[JetMouse::TURN_MOUSE_OFF_SWITCH]
    return [-1, -1] if @pos.nil?
    return [(@pos[0]/32), (@pos[1]/32)]
  end
  
  def true_grid
    return [grid[0] + $game_map.display_x / 256, grid[1] + $game_map.display_y / 256]
  end
  
  def area?(x, y, width, height)
    return false if $game_switches[JetMouse::TURN_MOUSE_OFF_SWITCH]
    return false if @pos.nil?
    return @pos[0].between?(x, width + x) && @pos[1].between?(y, height + y)
  end
  
  def scroll
    msg="\0"*32;Get_Message.call(msg,0,0,0);r=wmcallback(unpack_msg(msg))
    return r if !r.nil?
  end
end

class Sprite_Cursor < Sprite_Base
  
  attr_accessor :current_cursor, :not_default
  
  include JetMouse
  
  def initialize
    super
    @current_cursor = ""
    @not_default = false
    Win32API.new('user32', 'ShowCursor', 'i', 'i').call(0)
    self.z = 5004
    create_cursor(CURSOR_PICTURE)
    $game_switches = []
    update
  end
  
  def create_cursor(cursor = "")
    self.bitmap.dispose unless self.bitmap.nil?
    self.bitmap = nil
    begin
      self.bitmap = Cache.system(cursor)
      @current_cursor = cursor
    rescue
      self.bitmap = Bitmap.new(24, 24)
      bitmap = Cache.system("Iconset")
      rect = Rect.new(ICON_INDEX % 16 * 24, ICON_INDEX / 16 * 24, 24, 24)
      self.bitmap.blt(0, 0, bitmap, rect)
      @current_cursor = ICON_INDEX
    end
    @not_default = false
  end
  
  def change_cursor(cursor)
    self.bitmap.dispose unless self.bitmap.nil?
    self.bitmap = nil
    begin
      self.bitmap = Cache.system(cursor)
      @current_cursor = cursor
      @not_default = true
    rescue
      begin
        self.bitmap = Bitmap.new(24, 24)
        bitmap = Cache.system("Iconset")
        rect = Rect.new(cursor % 16 * 24, cursor / 16 * 24, 24, 24)
        self.bitmap.blt(0, 0, bitmap, rect)
        @current_cursor = cursor
        @not_default = true
      rescue
        create_cursor(CURSOR_PICTURE)
      end
    end
  end

  def update
    if $game_switches[TURN_MOUSE_OFF_SWITCH]
      self.opacity = 0 unless self.opacity == 0
    end
    self.opacity = 255 unless self.opacity == 255
    super
    x = self.x
    y = self.y
    self.x, self.y = Mouse.pos
    self.x -= 8 if @not_default
    self.y -= 8 if @not_default
  end
    
  def dispose
    super
  end
end

$cursor = Sprite_Cursor.new

module Input
  
  class << self
    
    alias jet5888_press? press? unless $@
    def press?(arg)
      if arg == Input::C
        return true if Mouse.press?(1)
      elsif arg == Input::B
        return true if Mouse.press?(2)
      end
      jet5888_press?(arg)
    end
    
    alias jet5888_repeat? repeat? unless $@
    def repeat?(arg)
      if arg == Input::C
        return true if Mouse.click?(1)
      elsif arg == Input::B
        return true if Mouse.click?(2)
      end
      jet5888_repeat?(arg)
    end
    
    alias jet5888_trigger? trigger? unless $@
    def trigger?(arg)
      if arg == Input::C
        return true if Mouse.click?(1)
      elsif arg == Input::B
        return true if Mouse.click?(2)
      end
      jet5888_trigger?(arg)
    end
    
    alias jet8432_update update unless $@
    def update(*args, &block)
      jet8432_update(*args, &block)
      if $game_switches[JetMouse::TURN_MOUSE_OFF_SWITCH] && $cursor.opacity != 0
        $cursor.opacity = 0
      end
      $cursor.update unless $game_switches[JetMouse::TURN_MOUSE_OFF_SWITCH]
      Mouse.update unless $game_switches[JetMouse::TURN_MOUSE_OFF_SWITCH]
    end
  
    alias jet1626_dir4 dir4 unless $@
    def dir4(*args, &block)
      if !$game_temp.nil?
        if $game_temp.move_because_of_mouse
          if !$game_temp.mouse_path.empty? && $game_player.movable? && 
              !$game_map.interpreter.running? && $scene.is_a?(Scene_Map)
            f = $game_temp.mouse_path.reverse!.pop
            $game_temp.mouse_path.reverse!
            return f.code * 2
          else
            $game_temp.move_because_of_mouse = false
          end
        end
      end
      jet1626_dir4(*args, &block)
    end
    
    alias jet1626_dir8 dir8 unless $@
    def dir8(*args, &block)
      if !$game_temp.nil?
        if $game_temp.move_because_of_mouse
          if !$game_temp.mouse_path.empty? && $game_player.movable? && 
              !$game_map.interpreter.running? && $scene.is_a?(Scene_Map)
            f = $game_temp.mouse_path.reverse!.pop
            $game_temp.mouse_path.reverse!
            if [1, 2, 3, 4].include?(f.code)
              return f.code * 2
            else
              case f.code
              when 5
                return 1
              when 6
                return 3
              when 7
                return 7
              when 8
                return 9
              end
            end
          else
            $game_temp.move_because_of_mouse = false
          end
        end
      end
      jet1626_dir8(*args, &block)
    end
  end
end

class Game_Character
  
  def find_mouse_path(trgt_x, trgt_y)
    path = $game_map.find_path (self.x, self.y, trgt_x, trgt_y, 
    JetMouse::DO_8DIR_WALKING, 0, self)
    return [] if path.empty? or trgt_x == self.x && trgt_y == self.y
    return path.reverse!
  end
end

class Game_Map

  def removefrom_binaryheap
    @open_nodes[1] = @open_nodes[@listsize]
    @listsize -= 1
    v = 1
    loop do
      u = v
      w = 2*u
      if w + 1 <= @listsize
        v = w if @total_cost[@open_nodes[u]] >= @total_cost[@open_nodes[w]]
        v = w + 1 if @total_cost[@open_nodes[v]] >= @total_cost[@open_nodes[w + 1]]
      elsif w <= @listsize
        v = w if @total_cost[@open_nodes[u]] >= @total_cost[@open_nodes[w]]
      end
      if u == v
        break
      else
        temp = @open_nodes[u]
        @open_nodes[u] = @open_nodes[v]
        @open_nodes[v] = temp
      end
    end
  end
  
  def find_path (src_x, src_y, trgt_x, trgt_y, diagonal, max_iterations, char)
    $game_temp.making_path = true
    path = []
    return path if !char.passable? (trgt_x, trgt_y)
    max_elements = width*height + 2
    openx = Table.new (max_elements)
    openy = Table.new (max_elements)
    @open_nodes = Table.new (max_elements)
    @total_cost = Table.new (max_elements)
    heuristic = Table.new (max_elements)
    step_cost = Table.new (width, height)
    parent_x = Table.new (width, height)
    parent_y = Table.new (width, height)
    actual_list = Table.new (width, height)
    new_openid = 1
    @open_nodes[1] = 1
    openx[1] = src_x
    openy[1] = src_y
    dist = [(trgt_x - src_x).abs, (trgt_y - src_y).abs]
    heuristic[1] = diagonal ? (dist.max*14) + (dist.min*10) : (dist[0] + dist[1])*10
    @total_cost[1] = heuristic[1]
    actual_list[src_x, src_y] = 1
    @listsize = 1
    count = 0
    loop do
      break if actual_list[trgt_x, trgt_y] != 0
      count += 1
      Graphics.update if count % 500 == 0
      return path if count == max_iterations
      return path if @listsize == 0
      node = @open_nodes[1]
      parent_xval, parent_yval = openx[node], openy[node]
      actual_list[parent_xval, parent_yval] = 2
      removefrom_binaryheap
      for i in 0...8
        break if i > 3 && !diagonal
        x, y = case i
        when 0 then [parent_xval, parent_yval - 1]
        when 1 then [parent_xval, parent_yval + 1]
        when 2 then [parent_xval - 1, parent_yval] 
        when 3 then [parent_xval + 1, parent_yval]
        when 4 then [parent_xval - 1, parent_yval - 1]
        when 5 then [parent_xval + 1, parent_yval - 1]
        when 6 then [parent_xval - 1, parent_yval + 1]
        when 7 then [parent_xval + 1, parent_yval + 1]
        end
        next if actual_list[x,y] == 2
        next unless char.passable? (x, y)
        if i > 3
          next unless case i
          when 4 then char.passable? (x + 1, y) || char.passable? (x, y + 1)
          when 5 then char.passable? (x - 1, y) || char.passable? (x, y + 1)
          when 6 then char.passable? (x + 1, y) || char.passable? (x, y - 1)
          when 7 then char.passable? (x - 1, y) || char.passable? (x, y - 1)
          end
        end
        plus_step_cost = ((x - parent_xval).abs + (y - parent_yval).abs) > 1 ? 14 : 10
        temp_step_cost = step_cost[parent_xval, parent_yval] + plus_step_cost
        if actual_list[x,y] == 1
          if temp_step_cost < step_cost[x, y]
            parent_x[x, y] = parent_xval
            parent_y[x, y] = parent_yval
            step_cost[x, y] = temp_step_cost
            index = 1
            while index < @listsize
              index += 1
              break if openx[@open_nodes[index]] == x &&
                                                openy[@open_nodes[index]] == y
            end
            @total_cost[@open_nodes[index]] = temp_step_cost + heuristic[@open_nodes[index]]
          else
            next
          end
        else
          new_openid += 1
          @listsize += 1
          @open_nodes[@listsize] = new_openid
          step_cost[x, y] = temp_step_cost
          d = [(trgt_x - x).abs, (trgt_y - y).abs]
          heuristic[new_openid] = diagonal ? (d.max*14) + (d.min*10) : (d[0] + d[1])*10
          @total_cost[new_openid] = temp_step_cost + heuristic[new_openid]
          parent_x[x, y] = parent_xval
          parent_y[x, y] = parent_yval
          openx[new_openid] = x
          openy[new_openid] = y
          index = @listsize
          actual_list[x, y] = 1
        end
        while index != 1
          temp_node = @open_nodes[index]
          if @total_cost[temp_node] <= @total_cost[@open_nodes[index / 2]] 
            @open_nodes[index] = @open_nodes[index / 2]
            index /= 2
            @open_nodes[index] = temp_node
          else
            break
          end
        end
      end
    end
    path_x, path_y = trgt_x, trgt_y
    while path_x != src_x || path_y != src_y
      prnt_x, prnt_y = parent_x[path_x, path_y], parent_y[path_x, path_y]
      if path_x < prnt_x
        code = path_y < prnt_y ? 7 : path_y > prnt_y ? 5 : 2
      elsif path_x > prnt_x
        code = path_y < prnt_y ? 8 : path_y > prnt_y ? 6 : 3 
      else
        code = path_y < prnt_y ? 4 : 1
      end
      path.push (RPG::MoveCommand.new (code))
      path_x, path_y = prnt_x, prnt_y
    end
    $game_temp.making_path = false
    return path
  end
end

class Game_Temp
  
  attr_accessor :move_because_of_mouse
  attr_accessor :mouse_controlled_object
  attr_accessor :making_path
  attr_accessor :mouse_path
  attr_accessor :did_mouse_change
  
  alias jet6742_initialize initialize unless $@
  def initialize(*args, &block)
    jet6742_initialize(*args, &block)
    @move_because_of_mouse = false
    @making_path = false
    @mouse_path = []
  end
end

class Window_Selectable
  
  alias jet6742_update update unless $@
  def update(*args, &block)
    jet6742_update(*args, &block)
    form_rect_array if @rect_array.nil?
    update_mouse if self.active && self.visible && !@rect_array.nil?
  end
  
  alias jet7222_top_row top_row= unless $@
  def top_row=(*args, &block)
    @last_cursor_move = 0 if @last_cursor_move.nil?
    @last_cursor_move -= 1
    return if @in_rect_loop || @last_cursor_move > 0
    jet7222_top_row(*args, &block)
    @last_cursor_move = 10
  end
  
  def form_rect_array
    @rect_array = []
    orig_index = @index
    @in_rect_loop = true
    (0..@item_max - 1).each do |i|
      @index = i
      update_cursor
      rect = self.cursor_rect
      ix = self.x + 16 + rect.x
      iy = self.y + 16 + rect.y
      @rect_array.push(Rect.new(ix, iy, rect.width, rect.height))
    end
    @in_rect_loop = false
    @index = orig_index
    update
  end
  
  def update_mouse
    if JetMouse::USE_WHEEL_DETECTION
      f = Mouse.scroll
      if !f.nil?
        if f[2] < 0
          if contents.height > self.height && self.oy - contents.height < -self.height + 32
            self.top_row = self.top_row + 1
          end
        else
          self.top_row = self.top_row - 1 if contents.height > self.height
        end
      end
    end
    original_index = @index
    fake_index = -2
    for rect in @rect_array
      if Mouse.area?(rect.x - self.ox, rect.y - self.oy, rect.width, rect.height)
        fake_index = @rect_array.index(rect)
        break
      end
    end
    @index = fake_index == -2 ? original_index : fake_index
    update_cursor
  end
end

class Window_NameInput
  
  alias wor_winnam_upd_mouse update unless $@
  def update(*args, &block)
    wor_winnam_upd_mouse(*args, &block)
    if self.active and self.visible
      (0..TABLE[@mode].size - 1).each do |i|
      irect = item_rect(i)
      irx = self.x + 16 + irect.x - self.ox
      iry = self.y + 16 + irect.y - self.oy
      @index = i if Mouse.area?(irx, iry, irect.width, irect.height)
      end
    end
  end
end

class Window_PartyCommand
  
  def update_mouse
    (0..@item_max - 1).each do |i|
    irect = item_rect(i)
    irx = self.viewport.ox + 16 + irect.x - self.ox
    iry = 288 + 16 + irect.y - self.oy
    self.index = i if Mouse.area?(irx, iry, irect.width, irect.height)
    end
  end
end

class Window_ActorCommand
  
  def update_mouse
    (0..@item_max - 1).each do |i|
    irect = item_rect(i)
    irx = self.viewport.ox + 288 + 16 + irect.x
    iry = 288 + 16 + irect.y
    self.index = i if Mouse.area?(irx, iry, irect.width, irect.height)
    end
  end
end

class Window_Message
  
  def update_mouse
    (0..@item_max - 1).each do |i|
      irect = item_rect(i)
      irx = self.x + 16 + irect.x - self.ox
      iry = self.y + 16 + irect.y - self.oy + ($game_message.choice_start * WLH)
      self.index = i if Mouse.area?(irx, iry, irect.width, irect.height)
    end
  end
end

class Window_ShopSell
  
  def refresh
    super
    form_rect_array
  end
end

class Scene_File
  
  alias wor_scefil_upd_mouse update unless $@
  def update(*args, &block)
    (0..@item_max - 1).each do |i|
      ix = @savefile_windows[i].x
      iy = @savefile_windows[i].y
      iw = @savefile_windows[i].width
      ih = @savefile_windows[i].height
      if Mouse.area?(ix, iy, iw, ih)
        @savefile_windows[@index].selected = false
        @savefile_windows[i].selected = true
        @index = i
      end
    end
    wor_scefil_upd_mouse(*args, &block)
  end
end

class Window_EventPopUp < Window_Base
  
  def initialize(x, y, width, height, text)
    super(x, y, width, height)
    self.opacity = 0
    @text = text
    refresh
  end
  
  def refresh
    self.contents.clear
    self.contents.draw_text(0, 0, self.width, 24, @text)
  end
end


class Game_Event
  
  attr_accessor :popup_window, :page
  
  def check_for_comment(regexp)
    return false if @list.nil?
    for item in @list
      if item.code == 108 or item.code == 408
        if !item.parameters[0][regexp].nil?
          return $1.nil? ? true : $1
        end
      end
    end
    return false
  end
  
  def through
    return true if check_for_comment(/MOUSE THROUGH/i) && $game_temp.making_path
    return @through
  end
  
  alias jet2734_update update unless $@
  def update(*args, &block)
    jet2734_update(*args, &block)
    update_mouse_popup
    update_mouse_change
  end
  
  def update_mouse_popup
    switch = $game_switches[JetMouse::TURN_MOUSE_OFF_SWITCH]
    if Mouse.true_grid == [self.x, self.y] && !switch && !@erased
      f = self.check_for_comment(/MOUSE TEXT (.+)/i)
      if f != false
        q = Bitmap.new(1, 1)
        size = q.text_size(f)
        x = self.screen_x - 16 - size.width / 2
        y = self.screen_y - 52 - size.height / 2
        if self.popup_window != nil
          self.popup_window.dispose
          self.popup_window = nil
        end
        self.popup_window = Window_EventPopUp.new(x, y, 
          size.width + 34, size.height + 34, f)
        q.dispose
        q = nil
      end
    else
      if self.popup_window != nil
        self.popup_window.dispose
        self.popup_window = nil
      end
    end
  end
  
  def update_mouse_change
    if Mouse.true_grid == [self.x, self.y]
      f = (self.check_for_comment(/MOUSE PIC (.+)/i) rescue false)
      if f != false
        if f.to_i != 0
          $cursor.change_cursor(f.to_i) unless $cursor.current_cursor == f.to_i
        else
          $cursor.change_cursor(f) unless $cursor.current_cursor == f
        end
        $game_temp.did_mouse_change = true
      end
    end
  end
end


class Scene_Map
  
  alias jet6742_update update unless $@
  def update(*args, &block)
    if !$game_message.visible
      update_mouse_left_click
    end
    jet6742_update(*args, &block)
    check_mouse_change
  end
  
  alias jet7811_terminate terminate unless $@
  def terminate(*args, &block)
    for event in $game_map.events.values
      next if event.popup_window.nil?
      event.popup_window.dispose unless event.popup_window.disposed?
      event.popup_window = nil
    end
    $cursor.create_cursor(JetMouse::CURSOR_PICTURE) if ![JetMouse::CURSOR_PICTURE,
      JetMouse::ICON_INDEX].include?($cursor.current_cursor)
    $cursor.opacity = 0
    jet7811_terminate(*args, &block)
    $cursor.opacity = 255 unless $game_switches[JetMouse::TURN_MOUSE_OFF_SWITCH]
  end
  
  alias jet8887_update_transfer_player update_transfer_player unless $@
  def update_transfer_player(*args, &block)
    if $game_player.transfer?
      $cursor.create_cursor(JetMouse::CURSOR_PICTURE) if ![JetMouse::CURSOR_PICTURE,
        JetMouse::ICON_INDEX].include?($cursor.current_cursor)
    end
    jet8887_update_transfer_player(*args, &block)
  end
  
  def check_mouse_change
    return if $game_switches[JetMouse::TURN_MOUSE_OFF_SWITCH]
    if $game_message.visible || $game_player.transfer?
      $cursor.create_cursor(JetMouse::CURSOR_PICTURE) if ![JetMouse::CURSOR_PICTURE,
        JetMouse::ICON_INDEX].include?($cursor.current_cursor)
      return
    end
    $cursor.create_cursor(JetMouse::CURSOR_PICTURE) if $game_temp.did_mouse_change.nil? && 
      ![JetMouse::CURSOR_PICTURE, JetMouse::ICON_INDEX].include?($cursor.current_cursor)
    $game_temp.did_mouse_change = nil
  end
  
  def do_closest_path_check(ev)
    se = $game_player
    sx = se.x - ev.x
    sy = se.y - ev.y
    if sx != 0 or sy != 0
      if sx.abs >= sy.abs
        if sx >= 0
          if $game_map.passable?(ev.x + 1, ev.y)
            return [ev.x + 1, ev.y] unless $game_map.find_path(se.x, se.y,
              ev.x + 1, ev.y, false, 0, se).empty?
          end
          if sy >= 0
            if $game_map.passable?(ev.x, ev.y + 1)
              return [ev.x, ev.y + 1] unless $game_map.find_path(se.x, se.y,
              ev.x, ev.y + 1, false, 0, se).empty?
            end
          else
            if $game_map.passable?(ev.x, ev.y - 1)
              return [ev.x, ev.y - 1] unless $game_map.find_path(se.x, se.y,
              ev.x, ev.y - 1, false, 0, se).empty?
            end
          end
          if $game_map.passable?(ev.x - 1, ev.y)
            return [ev.x - 1, ev.y] unless $game_map.find_path(se.x, se.y,
              ev.x - 1, ev.y, false, 0, se).empty?
          end
          if sy < 0
            if $game_map.passable?(ev.x, ev.y + 1)
              return [ev.x, ev.y + 1] unless $game_map.find_path(se.x, se.y,
              ev.x, ev.y + 1, false, 0, se).empty?
            end
          else
            if $game_map.passable?(ev.x, ev.y - 1)
              return [ev.x, ev.y - 1] unless $game_map.find_path(se.x, se.y,
              ev.x, ev.y - 1, false, 0, se).empty?
            end
          end
        elsif sx < 0
          if $game_map.passable?(ev.x - 1, ev.y)
            return [ev.x - 1, ev.y] unless $game_map.find_path(se.x, se.y,
              ev.x - 1, ev.y, false, 0, se).empty?
          end
          if sy >= 0
            if $game_map.passable?(ev.x, ev.y + 1)
              return [ev.x, ev.y + 1] unless $game_map.find_path(se.x, se.y,
              ev.x, ev.y + 1, false, 0, se).empty?
            end
          else
            if $game_map.passable?(ev.x, ev.y - 1)
              return [ev.x, ev.y - 1] unless $game_map.find_path(se.x, se.y,
              ev.x, ev.y - 1, false, 0, se).empty?
            end
          end
          if $game_map.passable?(ev.x + 1, ev.y)
            return [ev.x + 1, ev.y] unless $game_map.find_path(se.x, se.y,
              ev.x + 1, ev.y, false, 0, se).empty?
          end
          if sy < 0
            if $game_map.passable?(ev.x, ev.y + 1)
              return [ev.x, ev.y + 1] unless $game_map.find_path(se.x, se.y,
              ev.x, ev.y + 1, false, 0, se).empty?
            end
          else
            if $game_map.passable?(ev.x, ev.y - 1)
              return [ev.x, ev.y - 1] unless $game_map.find_path(se.x, se.y,
              ev.x, ev.y - 1, false, 0, se).empty?
            end
          end
        end
      else
        if sy > 0
          if $game_map.passable?(ev.x, ev.y + 1)
            return [ev.x, ev.y + 1] unless $game_map.find_path(se.x, se.y,
              ev.x, ev.y + 1, false, 0, se).empty?
          end
          if sx >= 0
            if $game_map.passable?(ev.x + 1, ev.y)
              return [ev.x + 1, ev.y] unless $game_map.find_path(se.x, se.y,
              ev.x + 1, ev.y, false, 0, se).empty?
            end
          else
            if $game_map.passable?(ev.x - 1, ev.y)
              return [ev.x - 1, ev.y] unless $game_map.find_path(se.x, se.y,
              ev.x - 1, ev.y, false, 0, se).empty?
            end
          end
          if $game_map.passable?(ev.x, ev.y - 1)
            return [ev.x, ev.y - 1] unless $game_map.find_path(se.x, se.y,
              ev.x, ev.y - 1, false, 0, se).empty?
          end
          if sx < 0
            if $game_map.passable?(ev.x + 1, ev.y)
              return [ev.x + 1, ev.y] unless $game_map.find_path(se.x, se.y,
              ev.x + 1, ev.y, false, 0, se).empty?
            end
          else
            if $game_map.passable?(ev.x - 1, ev.y)
              return [ev.x - 1, ev.y] unless $game_map.find_path(se.x, se.y,
              ev.x - 1, ev.y, false, 0, se).empty?
            end
          end
        elsif sy < 0
          if $game_map.passable?(ev.x, ev.y - 1)
            return [ev.x, ev.y - 1] unless $game_map.find_path(se.x, se.y,
              ev.x, ev.y - 1, false, 0, se).empty?
          end
          if sx >= 0
            if $game_map.passable?(ev.x + 1, ev.y)
              return [ev.x + 1, ev.y] unless $game_map.find_path(se.x, se.y,
              ev.x + 1, ev.y, false, 0, se).empty?
            end
          else
            if $game_map.passable?(ev.x - 1, ev.y)
              return [ev.x - 1, ev.y] unless $game_map.find_path(se.x, se.y,
              ev.x - 1, ev.y, false, 0, se).empty?
            end
          end
          if $game_map.passable?(ev.x, ev.y + 1)
            return [ev.x, ev.y + 1] unless $game_map.find_path(se.x, se.y,
              ev.x, ev.y + 1, false, 0, se).empty?
          end
          if sx < 0
            if $game_map.passable?(ev.x + 1, ev.y)
              return [ev.x + 1, ev.y] unless $game_map.find_path(se.x, se.y,
              ev.x + 1, ev.y, false, 0, se).empty?
            end
          else
            if $game_map.passable?(ev.x - 1, ev.y)
              return [ev.x - 1, ev.y] unless $game_map.find_path(se.x, se.y,
              ev.x - 1, ev.y, false, 0, se).empty?
            end
          end
        end
      end
    end
    return false
  end

  def update_mouse_left_click
    return if $game_map.interpreter.running? || $game_player.transfer?
    if Mouse.click?(1)
      event_activated = false
      for event in $game_map.events_xy(*Mouse.true_grid)
        if event.check_for_comment(/MOUSE CLICK/i)
          event.start
          event_activated = true
        elsif (event.x - $game_player.x).abs + (event.y - $game_player.y).abs == 1
          if ![3, 4].include?(event.trigger) && 
                (![0, 2].include?(event.priority_type) || event.trigger == 0) &&
                  ![0, 1].include?(event.page.list.size)
            if (event.y - $game_player.y).abs >
                (event.x - $game_player.x).abs
              if event.y - $game_player.y > 0
                $game_player.turn_down
              else
                $game_player.turn_up
              end
            else
              if event.x - $game_player.x > 0
                $game_player.turn_right
              else
                $game_player.turn_left
              end
            end
            event.start
            event_activated = true
            break
          end
        end
        if !event_activated
          for i in ["UP", "DOWN", "RIGHT", "LEFT"]
            if event.check_for_comment(/MOUSE MOVE #{i}/i)
              event_activated = true
              case i
              when "UP"
                x, y = event.x, event.y - 1
              when "DOWN"
                x, y = event.x, event.y + 1
              when "LEFT"
                x, y = event.x - 1, event.y
              when "RIGHT"
                x, y = event.x + 1, event.y
              end
              break
            end
          end
        end
        if !event_activated
          if $game_player.passable?(*Mouse.true_grid)
            x, y = *Mouse.true_grid
            event_activated = true
            break
          end
        end
        if !event_activated
          q = do_closest_path_check(event)
          if q != false
            x, y = q[0], q[1]
            event_activated = true
            break
          end
        end
      end
      if !event_activated
        if $game_player.map_passable?(*Mouse.true_grid)
          x, y = *Mouse.true_grid
        end
      end
      if !x.nil?
        $game_temp.move_because_of_mouse = true
        g = $game_player.find_mouse_path(x, y)
        $game_temp.mouse_path = g
      end
    end
  end
end