缩略地图如何做

驴获获

想请问一下地图特别大，看见有的游戏在左上角设置了一个缩略地图，并且有显示主角现在处在的位置，请问这样的功能用代码如何实现呢？新手对代码接触不多，能说的详细一点或者有没有教程链接之类的？谢谢啦

taroxd

https://rpg.blue/thread-224250-1-1.html

fyqinpku

RUBY 代码复制

#encoding:utf-8
# 小地图，不显示事件，只显示玩家位置和地图
# 进入新地图时会生成小地图，地图越大读取时间越久。
# 缓存最近使用的地图，最多10张（可在下面更改）。优先保留常用的地图
# 进入地图按 F5 打开小地图
# 不支持循环的地图。
 
 
class Window_MiniMap < Window_Base
ZoomRate = 0.25 #放大率
Hide_Text = '<hide minimap>'#地图备注中加入这个，该地图不显示小地图
@@cache = {}
@@show = false
 
  def initialize(vp)
    super(Graphics.width - 205, 5, 200, 160) #设置窗口的 x, y, width, height
    self.viewport = vp
    self.visible = false
    self.z = 299
    contents.fill_rect(contents.rect, Color.new(0, 0, 0, 255))#底色
    create_minimap
    create_player_sprite
    refresh_visible
    update
  end
  def update
    super
    update_player_sprite
    update_minimap
    switch_minimap if Input.trigger?(:F5) #设置呼出按键
  end
  def switch_minimap
    @@show = !@@show
    refresh_visible
  end
  def update_minimap
    @minimap.src_rect.x = $game_player.real_x * 32 - @minimap_sw
    @minimap.src_rect.y = $game_player.real_y * 32 - @minimap_sh
  end
  def dispose
    dispose_player_sprite
    @minimap.visible = false
    super
  end
 
 
 
  def create_player_sprite
    @player_sprite = Sprite_MapCharacter.new(viewport, $game_player)
    @player_sprite.z = 301
    @player_sprite.x = x + padding + (@minimap_sw+16)*ZoomRate
    @player_sprite.y = y + padding + (@minimap_sh+28)*ZoomRate
    @player_sprite.color = Color.new(220, 0, 0)
    @player_sprite.zoom_x = @player_sprite.zoom_y = ZoomRate 
  end
  def update_player_sprite
    @player_sprite.update
  end
  def dispose_player_sprite
    @player_sprite.dispose
  end
 
 
  def refresh_visible
    show = !@hide&& @@show
    self.visible = show
    @minimap.visible = show
    @player_sprite.visible = show
  end
  def create_minimap
    @minimap_sw = contents.width / 2 / ZoomRate
    @minimap_sh = contents.height / 2 / ZoomRate
    @minimap = Sprite.new
    @minimap.x = x + padding
    @minimap.y = y + padding
    @minimap.z = 300
 
    spriteset_map = nil
    SceneManager.scene.instance_eval {spriteset_map = @spriteset}
 
    @minimap.bitmap = minimap_bitmap(spriteset_map)
    @minimap.zoom_x = @minimap.zoom_y = ZoomRate
    @minimap.src_rect = Rect.new(0, 0, @minimap_sw*2, @minimap_sh*2)
    @minimap.viewport = viewport
 
  end
 
  def minimap_bitmap(spriteset_map)
 
    hide = false
    $game_map.instance_eval { hide = @map.note.include? Hide_Text }
    @hide= hide
    return nil if @hide
 
    v = @@cache[$game_map.map_id]
    bitmap = v ? v[1] : nil
    if bitmap && !bitmap.disposed?
      v[0] += 1
      return bitmap
    end
 
    spriteset_map.update
    spriteset_map.prepare_snap_minimap
 
    tempSprite = Sprite.new
    rect = contents.text_size( "LOADING" )
    rect.width += 4
    rect.height += 4
    rect.x = Graphics.width - rect.width
    rect.y = Graphics.height - rect.height
    tempSprite.bitmap = Bitmap.new Graphics.width, Graphics.height
    tempSprite.bitmap.fill_rect(tempSprite.bitmap.rect, Color.new(0,0,0) )
    tempSprite.bitmap.draw_text(rect, "LOADING")
    tempSprite.z = 1000
 
    mw = $game_map.width
    mh = $game_map.height
 
 
    bitmap = Bitmap.new( mw*32, mh*32 )
    sw = $game_map.screen_tile_x
    sh = $game_map.screen_tile_y
    (mw.fdiv sw).ceil.times {|x|
      (mh.fdiv sh).ceil.times {|y|
        tempSprite.visible = false
 
        $game_map.set_display_pos(sw * x, sh * y)
        spriteset_map.update_snap_minimap
        dx = $game_map.display_x * 32
        dy = $game_map.display_y * 32
        bp = Graphics.snap_to_bitmap
        bitmap.blt( dx, dy, bp, bp.rect )
        tempSprite.visible = true
        Graphics.update
      }
    }
    tempSprite.bitmap.dispose
    tempSprite.dispose
 
    $game_player.center($game_player.x, $game_player.y)
    spriteset_map.update
 
    if @@cache.size > 10 #设置缓存地图张数
      min_k = 0
      @@cache.each {|k, v| min_k = k if v[0] > min_k}
      @@cache.delete(min_k)[1].dispose
    end
    @@cache[$game_map.map_id] = [1, bitmap]
    return bitmap
  end
end
 
 
class Spriteset_Map
  attr_reader :viewport1
  def prepare_snap_minimap
    @character_sprites.each {|s| s.visible = false}
    @viewport1.tone.set(0, 0, 0, 0)
    @viewport2.color.set(0, 0, 0, 0)
    @viewport3.color.set(0, 0, 0, 0)
  end
  #
  def update_snap_minimap
    update_tileset
    update_tilemap
    update_parallax
#~     update_shadow
#~     update_weather
#~     update_pictures
#~     update_timer
#~     update_viewports
  end
end
 
class Sprite_MapCharacter < Sprite_Character
  def update_other
  end
  def update_position
  end
  def setup_new_effect
  end
  def end_animation
  end
  def start_balloon
  end
  def dispose_balloon
  end
  def update_balloon
  end
  def end_balloon
  end
end
 
class Scene_Map
  alias_method :sminimap_perform_transition, :create_spriteset
  def create_spriteset#perform_transition
    sminimap_perform_transition
    create_mini_map
  end
  alias_method :minimap_terminate, :terminate
  def terminate
    minimap_terminate
    @minimap.dispose
  end
  alias_method :sminimap_post_transfer, :post_transfer
  def post_transfer
    create_mini_map
    sminimap_post_transfer
  end
  def create_mini_map
    t = Graphics.brightness
    Graphics.brightness = 255
    c = @viewport.color
    @viewport.color = Color.new
 
    if @map_name_window && !@map_name_window.disposed?
      v = @map_name_window.visible
      @map_name_window.visible = false
    end
 
 
    @minimap.dispose if @minimap
    @minimap = Window_MiniMap.new(@spriteset.viewport1)
 
    Graphics.brightness = t
    @viewport.color = c
    if @map_name_window && !@map_name_window.disposed?
      @map_name_window.visible = v
    end
  end
end

#encoding:utf-8


# 小地图，不显示事件，只显示玩家位置和地图


# 进入新地图时会生成小地图，地图越大读取时间越久。


# 缓存最近使用的地图，最多10张（可在下面更改）。优先保留常用的地图


# 进入地图按 F5 打开小地图


# 不支持循环的地图。


 


 


class Window_MiniMap < Window_Base


ZoomRate = 0.25 #放大率


Hide_Text = '<hide minimap>'#地图备注中加入这个，该地图不显示小地图


@@cache = {}


@@show = false


 


  def initialize(vp)


    super(Graphics.width - 205, 5, 200, 160) #设置窗口的 x, y, width, height


    self.viewport = vp


    self.visible = false


    self.z = 299


    contents.fill_rect(contents.rect, Color.new(0, 0, 0, 255))#底色


    create_minimap


    create_player_sprite


    refresh_visible


    update


  end


  def update


    super


    update_player_sprite


    update_minimap


    switch_minimap if Input.trigger?(:F5) #设置呼出按键


  end


  def switch_minimap


    @@show = !@@show


    refresh_visible


  end


  def update_minimap


    @minimap.src_rect.x = $game_player.real_x * 32 - @minimap_sw


    @minimap.src_rect.y = $game_player.real_y * 32 - @minimap_sh


  end


  def dispose


    dispose_player_sprite


    @minimap.visible = false


    super


  end


 


 


 


  def create_player_sprite


    @player_sprite = Sprite_MapCharacter.new(viewport, $game_player)


    @player_sprite.z = 301


    @player_sprite.x = x + padding + (@minimap_sw+16)*ZoomRate


    @player_sprite.y = y + padding + (@minimap_sh+28)*ZoomRate


    @player_sprite.color = Color.new(220, 0, 0)


    @player_sprite.zoom_x = @player_sprite.zoom_y = ZoomRate 


  end


  def update_player_sprite


    @player_sprite.update


  end


  def dispose_player_sprite


    @player_sprite.dispose


  end


 


 


  def refresh_visible


    show = !@hide&& @@show


    self.visible = show


    @minimap.visible = show


    @player_sprite.visible = show


  end


  def create_minimap


    @minimap_sw = contents.width / 2 / ZoomRate


    @minimap_sh = contents.height / 2 / ZoomRate


    @minimap = Sprite.new


    @minimap.x = x + padding


    @minimap.y = y + padding


    @minimap.z = 300


 


    spriteset_map = nil


    SceneManager.scene.instance_eval {spriteset_map = @spriteset}


 


    @minimap.bitmap = minimap_bitmap(spriteset_map)


    @minimap.zoom_x = @minimap.zoom_y = ZoomRate


    @minimap.src_rect = Rect.new(0, 0, @minimap_sw*2, @minimap_sh*2)


    @minimap.viewport = viewport


 


  end


 


  def minimap_bitmap(spriteset_map)


 


    hide = false


    $game_map.instance_eval { hide = @map.note.include? Hide_Text }


    @hide= hide


    return nil if @hide


 


    v = @@cache[$game_map.map_id]


    bitmap = v ? v[1] : nil


    if bitmap && !bitmap.disposed?


      v[0] += 1


      return bitmap


    end


 


    spriteset_map.update


    spriteset_map.prepare_snap_minimap


 


    tempSprite = Sprite.new


    rect = contents.text_size( "LOADING" )


    rect.width += 4


    rect.height += 4


    rect.x = Graphics.width - rect.width


    rect.y = Graphics.height - rect.height


    tempSprite.bitmap = Bitmap.new Graphics.width, Graphics.height


    tempSprite.bitmap.fill_rect(tempSprite.bitmap.rect, Color.new(0,0,0) )


    tempSprite.bitmap.draw_text(rect, "LOADING")


    tempSprite.z = 1000


 


    mw = $game_map.width


    mh = $game_map.height


 


 


    bitmap = Bitmap.new( mw*32, mh*32 )


    sw = $game_map.screen_tile_x


    sh = $game_map.screen_tile_y


    (mw.fdiv sw).ceil.times {|x|


      (mh.fdiv sh).ceil.times {|y|


        tempSprite.visible = false


 


        $game_map.set_display_pos(sw * x, sh * y)


        spriteset_map.update_snap_minimap


        dx = $game_map.display_x * 32


        dy = $game_map.display_y * 32


        bp = Graphics.snap_to_bitmap


        bitmap.blt( dx, dy, bp, bp.rect )


        tempSprite.visible = true


        Graphics.update


      }


    }


    tempSprite.bitmap.dispose


    tempSprite.dispose


 


    $game_player.center($game_player.x, $game_player.y)


    spriteset_map.update


 


    if @@cache.size > 10 #设置缓存地图张数


      min_k = 0


      @@cache.each {|k, v| min_k = k if v[0] > min_k}


      @@cache.delete(min_k)[1].dispose


    end


    @@cache[$game_map.map_id] = [1, bitmap]


    return bitmap


  end


end


 


 


class Spriteset_Map


  attr_reader :viewport1


  def prepare_snap_minimap


    @character_sprites.each {|s| s.visible = false}


    @viewport1.tone.set(0, 0, 0, 0)


    @viewport2.color.set(0, 0, 0, 0)


    @viewport3.color.set(0, 0, 0, 0)


  end


  #


  def update_snap_minimap


    update_tileset


    update_tilemap


    update_parallax


#~     update_shadow


#~     update_weather


#~     update_pictures


#~     update_timer


#~     update_viewports


  end


end


 


class Sprite_MapCharacter < Sprite_Character


  def update_other


  end


  def update_position


  end


  def setup_new_effect


  end


  def end_animation


  end


  def start_balloon


  end


  def dispose_balloon


  end


  def update_balloon


  end


  def end_balloon


  end


end


 


class Scene_Map


  alias_method :sminimap_perform_transition, :create_spriteset


  def create_spriteset#perform_transition


    sminimap_perform_transition


    create_mini_map


  end


  alias_method :minimap_terminate, :terminate


  def terminate


    minimap_terminate


    @minimap.dispose


  end


  alias_method :sminimap_post_transfer, :post_transfer


  def post_transfer


    create_mini_map


    sminimap_post_transfer


  end


  def create_mini_map


    t = Graphics.brightness


    Graphics.brightness = 255


    c = @viewport.color


    @viewport.color = Color.new


 


    if @map_name_window && !@map_name_window.disposed?


      v = @map_name_window.visible


      @map_name_window.visible = false


    end


 


 


    @minimap.dispose if @minimap


    @minimap = Window_MiniMap.new(@spriteset.viewport1)


 


    Graphics.brightness = t


    @viewport.color = c


    if @map_name_window && !@map_name_window.disposed?


      @map_name_window.visible = v


    end


  end


end

引自：
https://rpg.blue/thread-333550-1-1.html

第13个