Initial import

Scripts/RPG/SceneManager.rb

@@ -0,0 +1,95 @@
+# -*- coding: utf-8 -*-
+#==============================================================================
+# ** SceneManager
+#------------------------------------------------------------------------------
+#  This module manages scene transitions. For example, it can handle
+# hierarchical structures such as calling the item screen from the main menu
+# or returning from the item screen to the main menu.
+#==============================================================================
+
+module SceneManager
+  #--------------------------------------------------------------------------
+  # * Module Instance Variables
+  #--------------------------------------------------------------------------
+  @scene = nil                            # current scene object
+  @stack = []                             # stack for hierarchical transitions
+  @background_bitmap = nil                # background bitmap
+  #--------------------------------------------------------------------------
+  # * Execute
+  #--------------------------------------------------------------------------
+  def self.run
+    DataManager.init
+    Audio.setup_midi if use_midi?
+    @scene = first_scene_class.new
+    @scene.main while @scene
+  end
+  #--------------------------------------------------------------------------
+  # * Get First Scene Class
+  #--------------------------------------------------------------------------
+  def self.first_scene_class
+    $BTEST ? Scene_Battle : Scene_Title
+  end
+  #--------------------------------------------------------------------------
+  # * Use MIDI?
+  #--------------------------------------------------------------------------
+  def self.use_midi?
+    $data_system.opt_use_midi
+  end
+  #--------------------------------------------------------------------------
+  # * Get Current Scene
+  #--------------------------------------------------------------------------
+  def self.scene
+    @scene
+  end
+  #--------------------------------------------------------------------------
+  # * Determine Current Scene Class
+  #--------------------------------------------------------------------------
+  def self.scene_is?(scene_class)
+    @scene.instance_of?(scene_class)
+  end
+  #--------------------------------------------------------------------------
+  # * Direct Transition
+  #--------------------------------------------------------------------------
+  def self.goto(scene_class)
+    @scene = scene_class.new
+  end
+  #--------------------------------------------------------------------------
+  # * Call
+  #--------------------------------------------------------------------------
+  def self.call(scene_class)
+    @stack.push(@scene)
+    @scene = scene_class.new
+  end
+  #--------------------------------------------------------------------------
+  # * Return to Caller
+  #--------------------------------------------------------------------------
+  def self.return
+    @scene = @stack.pop
+  end
+  #--------------------------------------------------------------------------
+  # * Clear Call Stack
+  #--------------------------------------------------------------------------
+  def self.clear
+    @stack.clear
+  end
+  #--------------------------------------------------------------------------
+  # * Exit Game
+  #--------------------------------------------------------------------------
+  def self.exit
+    @scene = nil
+  end
+  #--------------------------------------------------------------------------
+  # * Create Snapshot to Use as Background
+  #--------------------------------------------------------------------------
+  def self.snapshot_for_background
+    @background_bitmap.dispose if @background_bitmap
+    @background_bitmap = Graphics.snap_to_bitmap
+    @background_bitmap.blur
+  end
+  #--------------------------------------------------------------------------
+  # * Get Background Bitmap
+  #--------------------------------------------------------------------------
+  def self.background_bitmap
+    @background_bitmap
+  end
+end