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Arrow Over Head II - Script Version

Latest Post

Kain Nobel

Member

1,678
Introduction

First off, I would like to credit 3 people...

punkid89: Created the origional 'event' system I based this script from.

brewmiester: Helped me a LONG time ago on worthless old version of this script, back when I didn't know what the heck I was doing!

and...

Poccil: Although I re-wrote it somewhat, I used one of his scriptlets for the "Priority" function of this script.

Instructions

Comes with a customizable module. You can enable/disable the script by setting 'true' or 'false', set the Offset of the arrow without editing the script, determine your own graphic, etc. Also, there's 3 modes...

"Hold": Must hold the determined button in order for the graphic to appear.

"Toggle": Graphic turns on/off when you press your magic button

"Priority": Graphic will appear only when 'behind' something. This feature needs a tiny bit of modification, I'll fix it later on.

The Script
Code: 
#===============================================================================
# ~** Check Player/Event Priority **~
#-------------------------------------------------------------------------------
#   This scriptlet is used to check player/event priority (is player under a
# tree?)
#===============================================================================
class Bitmap
  # Fast methods for retrieving bitmap data
  RtlMoveMemory_pii = Win32API.new('kernel32', 'RtlMoveMemory', 'pii', 'i')
  RtlMoveMemory_ipi = Win32API.new('kernel32', 'RtlMoveMemory', 'ipi', 'i')
  def set_data(x)
    RtlMoveMemory_ipi.call(self.address, x, x.length)    
  end
  def get_data
    data = "rgba" * width * height
    RtlMoveMemory_pii.call(data, self.address, data.length)
    return data
  end
  def address
    if !@address
      buffer, ad = "rgba", object_id * 2 + 16
      RtlMoveMemory_pii.call(buffer, ad, 4)
      ad = buffer.unpack("L")[0] + 8
      RtlMoveMemory_pii.call(buffer, ad, 4)
      ad = buffer.unpack("L")[0] + 16
      RtlMoveMemory_pii.call(buffer, ad, 4)
      @address=buffer.unpack("L")[0]
    end
    return @address
  end
end
################################################################################
#===============================================================================
# ** Game_Character
#-------------------------------------------------------------------------------
#   Added method to Game_Character to check if they're 'under' an object on map.
#===============================================================================
class Game_Character
  #-----------------------------------------------------------------------------
  # * Behind Object?
  #-----------------------------------------------------------------------------
  def behind_object?
    return self.screen_z < $game_map.priority(self.x,self.y)
  end
end
#===============================================================================
# ** Game_Map
#-------------------------------------------------------------------------------
#   Added quick methods to determine if tile is blank, or to determine the
# priority of a certain tile in a 'readable' format.
#===============================================================================
class Game_Map
  #-----------------------------------------------------------------------------
  # * Tile is Blank?
  #-----------------------------------------------------------------------------
  def tile_is_blank?(tile_id)
    return false unless tile_id > 384
    tile = RPG::Cache.tile(@tileset_name, tile_id, 0)
    if tile.get_data[/^(...\0)+$/] # Fast way to check whether alpha of all pixels is 0
      return true
    end
    return false
  end
  #-----------------------------------------------------------------------------
  # * Priority
  #-----------------------------------------------------------------------------
  def priority(x, y)
    z_max = 0
    unless @map_id == 0
      for i in [2, 1, 0]
        tile_id = data[x, y, i]
        next if tile_id.nil? || tile_id == 0
        unless @priorities[tile_id] == 0
          ypos = (y * 32) - (self.display_y / 4)
          unless tile_is_blank?(tile_id)
            z_max = [z_max, ypos + @priorities[tile_id] * 32 + 32].max
          end
        end
      end
    end
    return z_max
  end
end

Code: 
#===============================================================================
# ~** Arrow Over Head **~
#-------------------------------------------------------------------------------
# Written by  : Kain Nobel (With Help from Brewmiester @ RMXP.org, thanks!)
# Version     : 0.2
# Last Update : 2/29/2008
# Created On  : 3/5/2008
#-------------------------------------------------------------------------------
# REQUIRES
#   Poccil's "Check Priority" scriptlet, which is packaged with this script.
#===============================================================================
module ArrowHead
  Enabled     = true
  Graphic     = "YouHere"
  Mode        = "Priority"
  Offset      = nil
  Opacity     = 160
  Button      = Input::C
  SwitchID    = nil
  XcludeMaps  = [3]
end
#===============================================================================
# ** Scene_Map
#-------------------------------------------------------------------------------
#   This class has been aliased to include the "Arrow Over Head" script to work.
#===============================================================================
class Scene_Map
  #-----------------------------------------------------------------------------
  # * Alias Listings
  #-----------------------------------------------------------------------------
  alias_method :kn_arrowhead_scene_map_main,    :main
  alias_method :kn_arrowhead_scene_map_update,  :update
  #-----------------------------------------------------------------------------
  # * Main Method (*Aliased*)
  #-----------------------------------------------------------------------------
  def main
    # If script is enabled
    if ArrowHead::Enabled
      # Create Arrowhead Sprite
      @ah_viewport = Viewport.new(0, 0, 64, 64)
      @blank      = RPG::Cache.picture("")
      @arrowhead  = Sprite.new
      @arrowhead.bitmap = RPG::Cache.picture(ArrowHead::Graphic) rescue @blank
      @arrowhead.x = $game_player.screen_x - 16
      unless ArrowHead::Offset.nil?
        @arrowhead.y = $game_player.screen_y - ArrowHead::Offset
      else
        @arrowhead.y = $game_player.screen_y - 72
      end
      @arrowhead.z = 600
      @arrowhead.opacity = ArrowHead::Opacity unless ArrowHead::Opacity.nil?
      @arrowhead.visible = true
    end
    # Call origional method
    kn_arrowhead_scene_map_main
    # Dispose after loop do stuff if Scene isn't a Scene_Map
    @arrowhead.dispose unless @arrowhead.nil?
  end
  #-----------------------------------------------------------------------------
  # * Update Method (*Aliased*)
  #-----------------------------------------------------------------------------
  def update
    kn_arrowhead_scene_map_update
    if ArrowHead::Enabled and not ArrowHead::XcludeMaps.include?($game_map.map_id)
      # Set Arrow's X/Y Positions
      @arrowhead.x = $game_player.screen_x - 16
      unless ArrowHead::Offset.nil?
        @arrowhead.y = $game_player.screen_y - ArrowHead::Offset
      else
        @arrowhead.y = $game_player.screen_y - 72
      end
      # Determine Mode
      case ArrowHead::Mode
      when "Hold"
        @arrowhead.visible = Input.press?(ArrowHead::Button)
      when "Toggle"
        if Input.trigger?(ArrowHead::Button)
          @arrowhead.visible = !@arrowhead.visible
        end
      when "Priority"
        @arrowhead.visible = $game_player.behind_object?
      end
      # Update Switch (if specified)
      if ArrowHead::SwitchID.is_a?(Integer)
        $game_switches[ArrowHead::SwitchID] = @arrowhead.visible
      end
    else
      if $game_map.map_id != $game_temp.player_new_map_id
        @arrowhead.visible = false unless @arrowhead.nil?
      else
        @arrowhead.visible = true unless @arrowhead.nil?
      end
    end
  end
end

Filler Graphics

This is what I use...

http://i224.photobucket.com/albums/dd28 ... ouHere.png[/img]

Or you can use punkid89's graphic he uses with his system, somewhere in here.

http://www.rmxp.org/forums/index.php?topic=24456.0

Also, you can use these too for showing entrance ways, or whatever you want.

http://i224.photobucket.com/albums/dd28 ... ocator.png[/img]

They're character graphics, so you can change the hue/opacity for them. I like to animate mine like so...

http://i224.photobucket.com/albums/dd288/Kain_Nobel/KN-Arrow_Over_Head_tut_1.png[/img]
 

diablosbud

Member

61
I have an odd error, basically if I have the script enabled, and I enter a map it shows YouHere.png, usually above or in the left bottom side of the player character, and when I press my input key (it is on toggle mode), it does nothing, so the picture follows me around. Could you please help me fix this error? Here is the script, with the options I selected:
Code: 
#===============================================================================
# ~** Arrow Over Head **~
#-------------------------------------------------------------------------------
# Written by  : Kain Nobel (With Help from Brewmiester @ RMXP.org, thanks!)
# Version     : 0.2
# Last Update : 2/29/2008
# Created On  : 3/5/2008
#-------------------------------------------------------------------------------
# REQUIRES
#   Poccil's "Check Priority" scriptlet, which is packaged with this script.
#===============================================================================
module ArrowHead
  Enabled     = true
  Graphic     = "YouHere"
  Mode        = "Toggle"
  Offset      = nil
  Opacity     = 160
  Button      = Input::R
  SwitchID    = nil
  XcludeMaps  = []
end
#===============================================================================
# ** Scene_Map
#-------------------------------------------------------------------------------
#   This class has been aliased to include the "Arrow Over Head" script to work.
#===============================================================================
class Scene_Map
  #-----------------------------------------------------------------------------
  # * Alias Listings
  #-----------------------------------------------------------------------------
  alias_method :kn_arrowhead_scene_map_main,    :main
  alias_method :kn_arrowhead_scene_map_update,  :update
  #-----------------------------------------------------------------------------
  # * Main Method (*Aliased*)
  #-----------------------------------------------------------------------------
  def main
    # If script is enabled
    if ArrowHead::Enabled
      # Create Arrowhead Sprite
      @ah_viewport = Viewport.new(0, 0, 64, 64)
      @blank      = RPG::Cache.picture("")
      @arrowhead  = Sprite.new
      @arrowhead.bitmap = RPG::Cache.picture(ArrowHead::Graphic) rescue @blank
      @arrowhead.x = $game_player.screen_x - 16
      unless ArrowHead::Offset.nil?
        @arrowhead.y = $game_player.screen_y - ArrowHead::Offset
      else
        @arrowhead.y = $game_player.screen_y - 72
      end
      @arrowhead.z = 600
      @arrowhead.opacity = ArrowHead::Opacity unless ArrowHead::Opacity.nil?
      @arrowhead.visible = true
    end
    # Call origional method
    kn_arrowhead_scene_map_main
    # Dispose after loop do stuff if Scene isn't a Scene_Map
    @arrowhead.dispose unless @arrowhead.nil?
  end
  #-----------------------------------------------------------------------------
  # * Update Method (*Aliased*)
  #-----------------------------------------------------------------------------
  def update
    kn_arrowhead_scene_map_update
    if ArrowHead::Enabled and not ArrowHead::XcludeMaps.include?($game_map.map_id)
      # Set Arrow's X/Y Positions
      @arrowhead.x = $game_player.screen_x - 16
      unless ArrowHead::Offset.nil?
        @arrowhead.y = $game_player.screen_y - ArrowHead::Offset
      else
        @arrowhead.y = $game_player.screen_y - 72
      end
      # Determine Mode
      case ArrowHead::Mode
      when "Hold"
        @arrowhead.visible = Input.press?(ArrowHead::Button)
      when "Toggle"
        if Input.trigger?(ArrowHead::Button)
          @arrowhead.visible = !@arrowhead.visible
        end
      when "Priority"
        @arrowhead.visible = $game_player.behind_object?
      end
      # Update Switch (if specified)
      if ArrowHead::SwitchID.is_a?(Integer)
        $game_switches[ArrowHead::SwitchID] = @arrowhead.visible
      end
    else
      if $game_map.map_id != $game_temp.player_new_map_id
        @arrowhead.visible = false unless @arrowhead.nil?
      else
        @arrowhead.visible = true unless @arrowhead.nil?
      end
    end
  end
end
 

superkboom

Member

26
Hey, if I may ask, can you use this for npc's in the game?  I was thinking this could be used as a way to determine quests characters.  I tried looking into this, but unfortunately, my findings weren't so rewarding.  Haha, finally I found this, maybe you could edit the script and add the npc to the script so that the arrow would maybe flash over that persons head.  Better yet, a way to show an animation instead of a picture would be excellent.
 

seven

Member

2,849
You know, if it gets to the point where you need to edit the script to suit your needs, you do realize you can use events. I mean, it is based off an event tutorial if I heard correctly.
 
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