Rpg Maker Developers Group

# * KWeatherArea VX * #
#   Scripter : Kyonides
#   v1.2.0 - 2025-03-25

# This scriptlet allows you to set regional weather effects on the current map.
# It works as usual. If you enter an area, the rain or snow will soon appear.
# Obviously, it will quickly vanish once you leave that area.

# If you ever remove an active weather area, it will revert the weather to
# the last effect set via weather effects event command if any.

# * Script Call * #

# - Add a Regional Weather Area
# - Step #1
#   Create 2 local variables: Use integers only, i.e. 1, 16 or 25.
#   W stands for Width or how wide this rectangle is supposed to be.
#   H stands for Height or how tall this rectangle is supposed to be.
# area = [X, Y, W, H]
# gm = $game_map

#   Example:
# area = [7, 10, 4, 6]
# gm = $game_map

# - Step #2
#   Use this call now:
#   - AreaID is an integer, 1+.
#   - Type is one of the RM's weather types: 1 being rain, 2 storm & 3 snow.
# gm.add_weather_area(AreaID, Type, area)
#   Example:
# gm.add_weather_area(1, 1, area)

# - Remove a Regional Weather Area (Temporarily?)
#   - AreaID is an integer, 1+.
# $game_map.remove_weather_area(AreaID)

class WeatherArea
  def initialize
    @id = 0
    @type = 0
    @area = Rect.new(0, 0, 0, 0)
  end

  def set_rect(*coords)
    coords = coords.flatten
    @area.x = coords.shift
    @area.y = coords.shift
    @area.width = coords.shift
    @area.height = coords.shift
  end

  def inside?(px, py)
    w = @area.x + @area.width - 1
    h = @area.y + @area.height - 1
    px.between?(@area.x, w) and py.between?(@area.y, h)
  end
  attr_accessor :id, :type, :area
end

class Game_Screen
  def change_weather(type, max)
    @weather_type = type
    @weather_max = (max + 1) * 4.0
    @weather_duration = 0
  end

  def previous_weather
    @weather_type = @weather_type_target
    @weather_max = @weather_max_target
    @weather_duration = 0
  end
end

class Game_Map
  alias :kyon_weather_area_gm_map_init :initialize
  alias :kyon_weather_area_gm_map_stp :setup
  alias :kyon_weather_area_gm_map_up :update
  def initialize
    kyon_weather_area_gm_map_init
    init_weather
  end

  def init_weather
    @weather_map_areas = {}
    @weather_area_id = 0
  end

  def setup(map_id)
    kyon_weather_area_gm_map_stp(map_id)
    load_weather_areas
  end

  def load_weather_areas
    @weather_areas = @weather_map_areas[@map_id] || {}
  end

  def add_weather_area(area_id, new_type, *coords)
    area = WeatherArea.new
    area.id = area_id
    area.type = new_type
    area.set_rect(*coords)
    areas = @weather_map_areas[@map_id] ||= {}
    areas[area_id] = area
    @weather_areas = areas
  end

  def remove_weather_area(area_id)
    @weather_areas.delete(area_id)
    return if @weather_area_id != area_id
    reset_weather
  end

  def reset_weather
    @screen.previous_weather
    @weather_area_id = 0
  end

  def update
    kyon_weather_area_gm_map_up
    update_weather_areas
  end

  def update_weather_areas
    return if @weather_areas.empty?
    px, py = $game_player.xy
    return if @weather_x == px and @weather_y == py
    @weather_x = px
    @weather_y = py
    new_area = @weather_areas.find {|key, val| val.inside?(px, py) }
    unless new_area
      reset_weather
      return
    end
    return if @weather_area_id == new_area[0]
    @weather_area_id, area = new_area
    @screen.change_weather(area.type, 10)
  end

  def aftermath_weather_area
    if @weather_area_id == 0
      reset_weather
    else
      area = @weather_areas[@weather_area_id]
      @screen.change_weather(area.type, 10)
    end
  end
end

class Game_Player
  def xy
    [@x, @y]
  end
end

class Spriteset_Battle
  alias :kyon_weather_area_sprtst_btl_crt_pix :create_pictures
  alias :kyon_weather_area_sprtst_btl_up_pix :update_pictures
  alias :kyon_weather_area_sprtst_btl_disp :dispose
  def create_pictures
    create_weather
    kyon_weather_area_sprtst_btl_crt_pix
  end

  def create_weather
    @weather = Spriteset_Weather.new(@viewport2)
    update_weather
  end

  def update_weather
    @weather.type = $game_map.screen.weather_type
    @weather.max = $game_map.screen.weather_max
    @weather.ox = $game_map.display_x / 8
    @weather.oy = $game_map.display_y / 8
    @weather.update
  end

  def update_pictures
    kyon_weather_area_sprtst_btl_up_pix
    update_weather
  end

  def dispose
    @weather.dispose
    kyon_weather_area_sprtst_btl_disp
  end
end

class Scene_Battle
  alias :kyon_weather_area_scn_btl_end :battle_end
  def battle_end(result)
    $game_map.aftermath_weather_area
    kyon_weather_area_scn_btl_end(result)
  end
end