Initial import

Scripts/RPG/Scene_File.rb

@@ -0,0 +1,204 @@
+# -*- coding: utf-8 -*-
+#==============================================================================
+# ** Scene_File
+#------------------------------------------------------------------------------
+#  This class performs common processing for the save screen and load screen.
+#==============================================================================
+
+class Scene_File < Scene_MenuBase
+  #--------------------------------------------------------------------------
+  # * Start Processing
+  #--------------------------------------------------------------------------
+  def start
+    super
+    create_help_window
+    create_savefile_viewport
+    create_savefile_windows
+    init_selection
+  end
+  #--------------------------------------------------------------------------
+  # * Termination Processing
+  #--------------------------------------------------------------------------
+  def terminate
+    super
+    @savefile_viewport.dispose
+    @savefile_windows.each {|window| window.dispose }
+  end
+  #--------------------------------------------------------------------------
+  # * Frame Update
+  #--------------------------------------------------------------------------
+  def update
+    super
+    @savefile_windows.each {|window| window.update }
+    update_savefile_selection
+  end
+  #--------------------------------------------------------------------------
+  # * Create Help Window
+  #--------------------------------------------------------------------------
+  def create_help_window
+    @help_window = Window_Help.new(1)
+    @help_window.set_text(help_window_text)
+  end
+  #--------------------------------------------------------------------------
+  # * Get Help Window Text
+  #--------------------------------------------------------------------------
+  def help_window_text
+    return ""
+  end
+  #--------------------------------------------------------------------------
+  # * Create Save File Viewport
+  #--------------------------------------------------------------------------
+  def create_savefile_viewport
+    @savefile_viewport = Viewport.new
+    @savefile_viewport.rect.y = @help_window.height
+    @savefile_viewport.rect.height -= @help_window.height
+  end
+  #--------------------------------------------------------------------------
+  # * Create Save File Window
+  #--------------------------------------------------------------------------
+  def create_savefile_windows
+    @savefile_windows = Array.new(item_max) do |i|
+      Window_SaveFile.new(savefile_height, i)
+    end
+    @savefile_windows.each {|window| window.viewport = @savefile_viewport }
+  end
+  #--------------------------------------------------------------------------
+  # * Initialize Selection State
+  #--------------------------------------------------------------------------
+  def init_selection
+    @index = first_savefile_index
+    @savefile_windows[@index].selected = true
+    self.top_index = @index - visible_max / 2
+    ensure_cursor_visible
+  end
+  #--------------------------------------------------------------------------
+  # * Get Number of Items
+  #--------------------------------------------------------------------------
+  def item_max
+    DataManager.savefile_max
+  end
+  #--------------------------------------------------------------------------
+  # * Get Number of Save Files to Show on Screen
+  #--------------------------------------------------------------------------
+  def visible_max
+    return 4
+  end
+  #--------------------------------------------------------------------------
+  # * Get Height of Save File Window
+  #--------------------------------------------------------------------------
+  def savefile_height
+    @savefile_viewport.rect.height / visible_max
+  end
+  #--------------------------------------------------------------------------
+  # * Get File Index to Select First
+  #--------------------------------------------------------------------------
+  def first_savefile_index
+    return 0
+  end
+  #--------------------------------------------------------------------------
+  # * Get Current Index
+  #--------------------------------------------------------------------------
+  def index
+    @index
+  end
+  #--------------------------------------------------------------------------
+  # * Get Top Index
+  #--------------------------------------------------------------------------
+  def top_index
+    @savefile_viewport.oy / savefile_height
+  end
+  #--------------------------------------------------------------------------
+  # * Set Top Index
+  #--------------------------------------------------------------------------
+  def top_index=(index)
+    index = 0 if index < 0
+    index = item_max - visible_max if index > item_max - visible_max
+    @savefile_viewport.oy = index * savefile_height
+  end
+  #--------------------------------------------------------------------------
+  # * Get Bottom Index
+  #--------------------------------------------------------------------------
+  def bottom_index
+    top_index + visible_max - 1
+  end
+  #--------------------------------------------------------------------------
+  # * Set Bottom Index
+  #--------------------------------------------------------------------------
+  def bottom_index=(index)
+    self.top_index = index - (visible_max - 1)
+  end
+  #--------------------------------------------------------------------------
+  # * Update Save File Selection
+  #--------------------------------------------------------------------------
+  def update_savefile_selection
+    return on_savefile_ok     if Input.trigger?(:C)
+    return on_savefile_cancel if Input.trigger?(:B)
+    update_cursor
+  end
+  #--------------------------------------------------------------------------
+  # * Save File [OK]
+  #--------------------------------------------------------------------------
+  def on_savefile_ok
+  end
+  #--------------------------------------------------------------------------
+  # * Save File [Cancel]
+  #--------------------------------------------------------------------------
+  def on_savefile_cancel
+    Sound.play_cancel
+    return_scene
+  end
+  #--------------------------------------------------------------------------
+  # * Update Cursor
+  #--------------------------------------------------------------------------
+  def update_cursor
+    last_index = @index
+    cursor_down (Input.trigger?(:DOWN))  if Input.repeat?(:DOWN)
+    cursor_up   (Input.trigger?(:UP))    if Input.repeat?(:UP)
+    cursor_pagedown   if Input.trigger?(:R)
+    cursor_pageup     if Input.trigger?(:L)
+    if @index != last_index
+      Sound.play_cursor
+      @savefile_windows[last_index].selected = false
+      @savefile_windows[@index].selected = true
+    end
+  end
+  #--------------------------------------------------------------------------
+  # * Move Cursor Down
+  #--------------------------------------------------------------------------
+  def cursor_down(wrap)
+    @index = (@index + 1) % item_max if @index < item_max - 1 || wrap
+    ensure_cursor_visible
+  end
+  #--------------------------------------------------------------------------
+  # * Move Cursor Up
+  #--------------------------------------------------------------------------
+  def cursor_up(wrap)
+    @index = (@index - 1 + item_max) % item_max if @index > 0 || wrap
+    ensure_cursor_visible
+  end
+  #--------------------------------------------------------------------------
+  # * Move Cursor One Page Down
+  #--------------------------------------------------------------------------
+  def cursor_pagedown
+    if top_index + visible_max < item_max
+      self.top_index += visible_max
+      @index = [@index + visible_max, item_max - 1].min
+    end
+  end
+  #--------------------------------------------------------------------------
+  # * Move Cursor One Page Up
+  #--------------------------------------------------------------------------
+  def cursor_pageup
+    if top_index > 0
+      self.top_index -= visible_max
+      @index = [@index - visible_max, 0].max
+    end
+  end
+  #--------------------------------------------------------------------------
+  # * Scroll Cursor to Position Within Screen
+  #--------------------------------------------------------------------------
+  def ensure_cursor_visible
+    self.top_index = index if index < top_index
+    self.bottom_index = index if index > bottom_index
+  end
+end