Bump version

lib/cyberarm_engine.rb

@@ -24,6 +24,7 @@ require_relative "cyberarm_engine/transform"
 require_relative "cyberarm_engine/ray"
 require_relative "cyberarm_engine/background"
 require_relative "cyberarm_engine/background_nine_slice"
+require_relative "cyberarm_engine/background_image"
 require_relative "cyberarm_engine/animator"
 
 require_relative "cyberarm_engine/text"

lib/cyberarm_engine/background_image.rb

@@ -0,0 +1,93 @@
+module CyberarmEngine
+  class BackgroundImage
+    include CyberarmEngine::Common
+    attr_accessor :x, :y, :z, :mode
+    attr_reader :image, :width, :height, :color
+
+    def initialize(image_path: nil, x: 0, y: 0, z: 0, width: 0, height: 0, mode: :fill, color: Gosu::Color::WHITE)
+      @image_path = image_path
+      @image = get_image(image_path) if image_path
+
+      @x = x
+      @y = y
+      @z = z
+      @width = width
+      @height = height
+
+      @mode = mode
+
+      @color = color
+
+      @cached_tiling = nil
+    end
+
+    def image=(image_path)
+      @cached_tiling = nil if image_path != @image_path
+      @image_path = image_path
+      @image = image_path ? get_image(image_path) : image_path
+    end
+
+    def width=(n)
+      @cached_tiling = nil if @width != n
+      @width = n
+    end
+
+    def height=(n)
+      @cached_tiling = nil if @height != n
+      @height = n
+    end
+
+    def color=(c)
+      @cached_tiling = nil if @color != c
+      @color = c
+    end
+
+    def width_scale
+      (@width.to_f / @image.width).abs
+    end
+
+    def height_scale
+      (@height.to_f / @image.height).abs
+    end
+
+    def draw
+      return unless @image
+
+      Gosu.clip_to(@x, @y, @width, @height) do
+        send(:"draw_#{mode}")
+      end
+    end
+
+    def draw_stretch
+      @image.draw(@x, @y, @z, width_scale, height_scale, @color)
+    end
+
+    def draw_tiled
+      @cached_tiling ||= Gosu.record(@width, @height) do
+        height_scale.ceil.times do |y|
+          width_scale.ceil.times do |x|
+            @image.draw(x * @image.width, y * @image.height, @z, 1, 1, @color)
+          end
+        end
+      end
+
+      @cached_tiling.draw(@x, @y, @z)
+    end
+
+    def draw_fill
+      if @width * width_scale > height * height_scale
+        draw_fill_width
+      else
+        draw_fill_height
+      end
+    end
+
+    def draw_fill_width
+      @image.draw(@x, @y, @z, width_scale, width_scale, @color)
+    end
+
+    def draw_fill_height
+      @image.draw(@x, @y, @z, height_scale, height_scale, @color)
+    end
+  end
+end

lib/cyberarm_engine/common.rb

@@ -95,7 +95,7 @@ module CyberarmEngine
     end
 
     def window
-      $window
+      CyberarmEngine::Window.instance
     end
 
     def control_down?

lib/cyberarm_engine/game_object.rb

@@ -7,7 +7,7 @@ module CyberarmEngine
     attr_reader :alpha
 
     def initialize(options = {})
-      $window.current_state.add_game_object(self) if options[:auto_manage] || options[:auto_manage].nil?
+      window.current_state.add_game_object(self) if options[:auto_manage] || options[:auto_manage].nil?
 
       @options = options
       @image = options[:image] ? image(options[:image]) : nil
@@ -55,9 +55,9 @@ module CyberarmEngine
 
       if $debug
         show_debug_heading
-        $window.draw_circle(@position.x, @position.y, radius, 9999, @debug_color)
+        Gosu.draw_circle(@position.x, @position.y, radius, 9999, @debug_color)
         if @debug_text.text != ""
-          $window.draw_rect(@debug_text.x - 10, (@debug_text.y - 10), @debug_text.width + 20, @debug_text.height + 20,
+          Gosu.draw_rect(@debug_text.x - 10, (@debug_text.y - 10), @debug_text.width + 20, @debug_text.height + 20,
                             Gosu::Color.rgba(0, 0, 0, 200), 9999)
           @debug_text.draw
         end
@@ -102,13 +102,13 @@ module CyberarmEngine
     end
 
     def _x_visible
-      x.between?(($window.width / 2) - @world_center_point.x, ($window.width / 2) + @world_center_point.x) ||
-        x.between?((@world_center_point.x - $window.width / 2), ($window.width / 2) + @world_center_point.x)
+      x.between?((window.width / 2) - @world_center_point.x, (window.width / 2) + @world_center_point.x) ||
+        x.between?((@world_center_point.x - window.width / 2), (window.width / 2) + @world_center_point.x)
     end
 
     def _y_visible
-      y.between?(($window.height / 2) - @world_center_point.y, ($window.height / 2) + @world_center_point.y) ||
-        y.between?(@world_center_point.y - ($window.height / 2), ($window.height / 2) + @world_center_point.y)
+      y.between?((window.height / 2) - @world_center_point.y, (window.height / 2) + @world_center_point.y) ||
+        y.between?(@world_center_point.y - (window.height / 2), (window.height / 2) + @world_center_point.y)
     end
 
     def heading(ahead_by = 100, _object = nil, angle_only = false)
@@ -153,10 +153,6 @@ module CyberarmEngine
       @color = Gosu::Color.rgba(@color.red, @color.green, @color.blue, int)
     end
 
-    def draw_rect(x, y, width, height, color, z = 0)
-      $window.draw_rect(x, y, width, height, color, z)
-    end
-
     def button_up(id)
     end
 
@@ -190,12 +186,12 @@ module CyberarmEngine
     # Duplication... so DRY.
     def each_circle_collision(object, _resolve_with = :width, &block)
       if object.class != Class && object.instance_of?(object.class)
-        $window.current_state.game_objects.select { |i| i.instance_of?(object.class) }.each do |o|
+        window.current_state.game_objects.select { |i| i.instance_of?(object.class) }.each do |o|
           distance = Gosu.distance(x, y, object.x, object.y)
           block.call(o, object) if distance <= radius + object.radius && block
         end
       else
-        list = $window.current_state.game_objects.select { |i| i.instance_of?(object) }
+        list = window.current_state.game_objects.select { |i| i.instance_of?(object) }
         list.each do |o|
           next if self == o
 
@@ -206,9 +202,9 @@ module CyberarmEngine
     end
 
     def destroy
-      if $window.current_state
-        $window.current_state.game_objects.each do |o|
-          $window.current_state.game_objects.delete(o) if o.is_a?(self.class) && o == self
+      if window.current_state
+        window.current_state.game_objects.each do |o|
+          window.current_state.game_objects.delete(o) if o.is_a?(self.class) && o == self
         end
       end
     end
@@ -220,13 +216,13 @@ module CyberarmEngine
 
     def self.each_circle_collision(object, _resolve_with = :width, &block)
       if object.class != Class && object.instance_of?(object.class)
-        $window.current_state.game_objects.select { |i| i.instance_of?(self) }.each do |o|
+        window.current_state.game_objects.select { |i| i.instance_of?(self) }.each do |o|
           distance = Gosu.distance(o.x, o.y, object.x, object.y)
           block.call(o, object) if distance <= o.radius + object.radius && block
         end
       else
-        lista = $window.current_state.game_objects.select { |i| i.instance_of?(self) }
-        listb = $window.current_state.game_objects.select { |i| i.instance_of?(object) }
+        lista = window.current_state.game_objects.select { |i| i.instance_of?(self) }
+        listb = window.current_state.game_objects.select { |i| i.instance_of?(object) }
         lista.product(listb).each do |o, o2|
           next if o == o2
 
@@ -238,9 +234,9 @@ module CyberarmEngine
 
     def self.destroy_all
       INSTANCES.clear
-      if $window.current_state
-        $window.current_state.game_objects.each do |o|
-          $window.current_state.game_objects.delete(o) if o.is_a?(self.class)
+      if window.current_state
+        window.current_state.game_objects.each do |o|
+          window.current_state.game_objects.delete(o) if o.is_a?(self.class)
         end
       end
     end

lib/cyberarm_engine/game_state.rb

@@ -9,7 +9,7 @@ module CyberarmEngine
       @options = options
       @game_objects = []
       @global_pause = false
-      $window.text_input = nil unless options[:preserve_text_input]
+      window.text_input = nil unless options[:preserve_text_input]
 
       @down_keys = {}
     end
@@ -30,48 +30,23 @@ module CyberarmEngine
       @game_objects.each(&:update)
     end
 
-    def draw_bounding_box(box)
-      x = box.x
-      y = box.y
-      max_x = box.max_x
-      max_y = box.max_y
-
-      color = Gosu::Color.rgba(255, 127, 64, 240)
-
-      # pipe = 4
-      # Gosu.draw_rect(x-width, y-height, x+(width*2), y+(height*2), color, Float::INFINITY)
-      # puts "BB render: #{x}:#{y} w:#{x.abs+width} h:#{y.abs+height}"
-      # Gosu.draw_rect(x, y, x.abs+width, y.abs+height, color, Float::INFINITY)
-
-      # TOP LEFT to BOTTOM LEFT
-      $window.draw_line(
-        x, y, color,
-        x, max_y, color,
-        Float::INFINITY
-      )
-      # BOTTOM LEFT to BOTTOM RIGHT
-      $window.draw_line(
-        x, max_y, color,
-        max_x, max_y, color,
-        Float::INFINITY
-      )
-      # BOTTOM RIGHT to TOP RIGHT
-      $window.draw_line(
-        max_x, max_y, color,
-        max_x, y, color,
-        Float::INFINITY
-      )
-      # TOP RIGHT to TOP LEFT
-      $window.draw_line(
-        max_x, y, color,
-        x, y, color,
-        Float::INFINITY
-      )
+    def needs_redraw?
+      true
     end
 
-    def destroy
-      @options.clear
-      @game_objects.clear
+    def drop(filename)
+    end
+
+    def gamepad_connected(index)
+    end
+
+    def gamepad_disconnected(index)
+    end
+
+    def gain_focus
+    end
+
+    def lose_focus
     end
 
     def button_down(id)
@@ -90,6 +65,54 @@ module CyberarmEngine
       end
     end
 
+    def close
+      window.close!
+    end
+
+    def draw_bounding_box(box)
+      x = box.x
+      y = box.y
+      max_x = box.max_x
+      max_y = box.max_y
+
+      color = Gosu::Color.rgba(255, 127, 64, 240)
+
+      # pipe = 4
+      # Gosu.draw_rect(x-width, y-height, x+(width*2), y+(height*2), color, Float::INFINITY)
+      # puts "BB render: #{x}:#{y} w:#{x.abs+width} h:#{y.abs+height}"
+      # Gosu.draw_rect(x, y, x.abs+width, y.abs+height, color, Float::INFINITY)
+
+      # TOP LEFT to BOTTOM LEFT
+      Gosu.draw_line(
+        x, y, color,
+        x, max_y, color,
+        Float::INFINITY
+      )
+      # BOTTOM LEFT to BOTTOM RIGHT
+      Gosu.draw_line(
+        x, max_y, color,
+        max_x, max_y, color,
+        Float::INFINITY
+      )
+      # BOTTOM RIGHT to TOP RIGHT
+      Gosu.draw_line(
+        max_x, max_y, color,
+        max_x, y, color,
+        Float::INFINITY
+      )
+      # TOP RIGHT to TOP LEFT
+      Gosu.draw_line(
+        max_x, y, color,
+        x, y, color,
+        Float::INFINITY
+      )
+    end
+
+    def destroy
+      @options.clear
+      @game_objects.clear
+    end
+
     def add_game_object(object)
       @game_objects << object
     end

lib/cyberarm_engine/opengl/renderer/renderer.rb

@@ -4,7 +4,7 @@ module CyberarmEngine
 
     def initialize
       @bounding_box_renderer = BoundingBoxRenderer.new
-      @opengl_renderer = OpenGLRenderer.new(width: $window.width, height: $window.height)
+      @opengl_renderer = OpenGLRenderer.new(width: CyberarmEngine::Window.instance.width, height: CyberarmEngine::Window.instance.height)
     end
 
     def draw(camera, lights, entities)

lib/cyberarm_engine/text.rb

@@ -43,9 +43,9 @@ module CyberarmEngine
         when :left
           @x = 0 + BUTTON_PADDING
         when :center
-          @x = ($window.width / 2) - (@textobject.text_width(@text) / 2)
+          @x = (CyberarmEngine::Window.instance.width / 2) - (@textobject.text_width(@text) / 2)
         when :right
-          @x = $window.width - BUTTON_PADDING - @textobject.text_width(@text)
+          @x = CyberarmEngine::Window.instance.width - BUTTON_PADDING - @textobject.text_width(@text)
         end
       end
     end

lib/cyberarm_engine/ui/dsl.rb

@@ -116,7 +116,7 @@ module CyberarmEngine
     end
 
     private def element_parent
-      $__current_container__
+      CyberarmEngine::Element::Container.current_container
     end
 
     private def container(klass, options = {}, &block)
@@ -126,12 +126,12 @@ module CyberarmEngine
       _container = klass.new(options, block)
 
       old_parent = element_parent
-      $__current_container__ = _container
+      CyberarmEngine::Element::Container.current_container = _container
 
       _container.build
       _container.parent.add(_container)
 
-      $__current_container__ = old_parent
+      CyberarmEngine::Element::Container.current_container = old_parent
 
       _container
     end

lib/cyberarm_engine/ui/element.rb

@@ -38,6 +38,7 @@ module CyberarmEngine
 
       @style.background_canvas = Background.new
       @style.background_nine_slice_canvas = BackgroundNineSlice.new
+      @style.background_image_canvas = BackgroundImage.new
       @style.border_canvas = BorderCanvas.new(element: self)
 
       @style_event = :default
@@ -60,6 +61,7 @@ module CyberarmEngine
 
       set_background
       set_background_nine_slice
+      set_background_image
 
       set_border_thickness
       set_border_color
@@ -104,6 +106,14 @@ module CyberarmEngine
       @style.background_nine_slice_bottom    = safe_style_fetch(:background_nine_slice_bottom) || @style.background_nine_slice_from_edge
     end
 
+    def set_background_image
+      @style.background_image = safe_style_fetch(:background_image)
+      @style.background_image_mode = safe_style_fetch(:background_image_mode) || :stretch
+      @style.background_image_color = safe_style_fetch(:background_image_color) || Gosu::Color::WHITE
+      @style.background_image_canvas.mode = @style.background_image_mode
+      @style.background_image_canvas.color = @style.background_image_color
+    end
+
     def set_border_thickness
       @style.border_thickness = safe_style_fetch(:border_thickness)
 
@@ -288,6 +298,7 @@ module CyberarmEngine
 
       @style.background_canvas.draw
       @style.background_nine_slice_canvas.draw
+      @style.background_image_canvas.draw
       @style.border_canvas.draw
 
       render
@@ -429,11 +440,34 @@ module CyberarmEngine
     def dimensional_size(size, dimension)
       raise "dimension must be either :width or :height" unless %i[width height].include?(dimension)
 
-      if size.is_a?(Numeric) && size.between?(0.0, 1.0)
-        (@parent.send(:"content_#{dimension}") * size).round - send(:"noncontent_#{dimension}").round
+      new_size = if size.is_a?(Numeric) && size.between?(0.0, 1.0)
+        (@parent.send(:"content_#{dimension}") * size).floor - send(:"noncontent_#{dimension}").floor
       else
         size
       end
+
+      if @parent && @style.fill # Handle fill behavior
+        fill_siblings = @parent.children.select { |c| c.style.fill }.count.to_f # include self since we're dividing
+
+        if dimension == :width && @parent.is_a?(Flow)
+          space_available_width = ((@parent.content_width - (@parent.children.reject { |c| c.style.fill }).map(&:outer_width).sum) / fill_siblings)
+          space_available_width = space_available_width.nan? ? 0 : space_available_width.floor # The parent element might not have its dimensions, yet.
+
+          return space_available_width - noncontent_width
+
+        elsif dimension == :height && @parent.is_a?(Stack)
+          space_available_height = ((@parent.content_height - (@parent.children.reject { |c| c.style.fill }).map(&:outer_height).sum) / fill_siblings)
+          space_available_height = space_available_height.nan? ? 0 : space_available_height.floor # The parent element might not have its dimensions, yet.
+
+          return space_available_height - noncontent_height
+        end
+
+      else # Handle min_width/height and max_width/height
+        return @style.send(:"min_#{dimension}") if @style.send(:"min_#{dimension}") && new_size < @style.send(:"min_#{dimension}")
+        return @style.send(:"max_#{dimension}") if @style.send(:"max_#{dimension}") && new_size > @style.send(:"max_#{dimension}")
+      end
+
+      new_size
     end
 
     def background=(_background)
@@ -450,6 +484,7 @@ module CyberarmEngine
 
       @style.background_canvas.update
       update_background_nine_slice
+      update_background_image
       @style.border_canvas.update
     end
 
@@ -477,6 +512,24 @@ module CyberarmEngine
       @style.background_nine_slice_canvas.image = @style.background_nine_slice
     end
 
+    def background_image=(image_path)
+      @style.background_image = image_path.is_a?(Gosu::Image) ? image_path : get_image(image_path)
+      update_background_image
+    end
+
+    def update_background_image
+      @style.background_image_canvas.x = @x
+      @style.background_image_canvas.y = @y
+      @style.background_image_canvas.z = @z
+      @style.background_image_canvas.width = width
+      @style.background_image_canvas.height = height
+
+      @style.background_image_canvas.mode = @style.background_image_mode
+      @style.background_image_canvas.color = @style.background_image_color
+
+      @style.background_image_canvas.image = @style.background_image
+    end
+
     def root
       return self if is_root?
 

lib/cyberarm_engine/ui/elements/button.rb

@@ -64,8 +64,8 @@ module CyberarmEngine
             @scale_y = 1
           end
 
-          @width = _width || @image.width.round * @scale_x
-          @height = _height || @image.height.round * @scale_y
+          @width = _width || @image.width.floor * @scale_x
+          @height = _height || @image.height.floor * @scale_y
 
           update_background
         else

lib/cyberarm_engine/ui/elements/container.rb

@@ -6,6 +6,16 @@ module CyberarmEngine
       attr_accessor :stroke_color, :fill_color
       attr_reader :children, :gui_state, :scroll_position
 
+      def self.current_container
+        @@current_container
+      end
+
+      def self.current_container=(container)
+        raise ArgumentError, "Expected container to an an instance of CyberarmEngine::Element::Container, got #{container.class}" unless container.is_a?(CyberarmEngine::Element::Container)
+
+        @@current_container = container
+      end
+
       def initialize(options = {}, block = nil)
         @gui_state = options.delete(:gui_state)
         super
@@ -35,23 +45,23 @@ module CyberarmEngine
       def clear(&block)
         @children.clear
 
-        old_container = $__current_container__
+        old_container = CyberarmEngine::Element::Container.current_container
 
-        $__current_container__ = self
+        CyberarmEngine::Element::Container.current_container = self
         block.call(self) if block
 
-        $__current_container__ = old_container
+        CyberarmEngine::Element::Container.current_container = old_container
 
         root.gui_state.request_recalculate
       end
 
       def append(&block)
-        old_container = $__current_container__
+        old_container = CyberarmEngine::Element::Container.current_container
 
-        $__current_container__ = self
+        CyberarmEngine::Element::Container.current_container = self
         block.call(self) if block
 
-        $__current_container__ = old_container
+        CyberarmEngine::Element::Container.current_container = old_container
 
         root.gui_state.request_recalculate
       end
@@ -122,29 +132,8 @@ module CyberarmEngine
           _width = dimensional_size(@style.width, :width)
           _height = dimensional_size(@style.height, :height)
 
-          @width  = _width  || (@children.map { |c| c.x + c.outer_width }.max || 0).round
-          @height = _height || (@children.map { |c| c.y + c.outer_height }.max || 0).round
-
-          # min width/height
-          @width = @style.min_width if @style.min_width && @width < @style.min_width
-          @height = @style.min_height if @style.min_height && @height < @style.min_height
-
-          # max width/height
-          @width = @style.max_width if @style.max_width && @width > @style.max_width
-          @height = @style.max_height if @style.max_height && @height > @style.max_height
-
-          # FIXME: Detect if other siblings (parents children) also want to fill and share space with them
-          if @parent && @style.fill
-            fill_siblings = @parent.children.select { |c| c.style.fill }.count.to_f # include self since we're dividing
-
-            space_available_width = ((@parent.content_width - (@parent.children.map(&:outer_width).sum - outer_width)) / fill_siblings).floor
-            space_available_height = ((@parent.content_height - (@parent.children.map(&:outer_height).sum - outer_height)) / fill_siblings).floor
-
-            @width = space_available_width - inner_width if @parent.is_a?(Flow)
-            @height = space_available_height - inner_height if @parent.is_a?(Stack)
-
-            # pp ["siblings: #{fill_siblings}", "parent is flow: #{@parent.is_a?(Flow)}", "parent is stack: #{@parent.is_a?(Stack)}", [@parent.content_width, space_available_width, @width, outer_width], [@parent.content_height, space_available_height, @height, outer_height]]
-          end
+          @width  = _width  || (@children.map { |c| c.x + c.outer_width }.max || 0).floor
+          @height = _height || (@children.map { |c| c.y + c.outer_height }.max || 0).floor
         end
 
         # Move child to parent after positioning

lib/cyberarm_engine/ui/elements/edit_box.rb

@@ -98,7 +98,7 @@ module CyberarmEngine
       end
 
       def row_at(y)
-        ((y - @text.y) / @text.textobject.height).round
+        ((y - @text.y) / @text.textobject.height).floor
       end
 
       def column_at(x, y)

lib/cyberarm_engine/ui/elements/image.rb

@@ -45,8 +45,8 @@ module CyberarmEngine
           @scale_y = 1
         end
 
-        @width = _width || @image.width.round * @scale_x
-        @height = _height || @image.height.round * @scale_y
+        @width = _width || @image.width.floor * @scale_x
+        @height = _height || @image.height.floor * @scale_y
 
         update_background
       end

lib/cyberarm_engine/ui/elements/list_box.rb

@@ -17,6 +17,8 @@ module CyberarmEngine
         @menu.define_singleton_method(:recalculate_menu) do
           @x = @__list_box.x
           @y = @__list_box.y + @__list_box.height
+
+          @y = @__list_box.y - height if @y + height > window.height
         end
         @menu.instance_variable_set(:"@__list_box", self)
 
@@ -29,6 +31,13 @@ module CyberarmEngine
         self.choose = @choose
       end
 
+      def render
+        super
+
+        w = @text.textobject.text_width("▼")
+        @text.textobject.draw_text("▼", @x + content_width - w, @y + @style.padding_top, @z, 1, 1, @text.color)
+      end
+
       def choose=(item)
         valid = @items.detect { |i| i == item }
         raise "Invalid value '#{item}' for choose, valid options were: #{@items.map { |i| "#{i.inspect}" }.join(", ")}" unless valid

lib/cyberarm_engine/ui/elements/text_block.rb

@@ -18,7 +18,14 @@ module CyberarmEngine
       end
 
       def render
-        @text.draw
+        # Gosu.clip_to is too expensive to always use so check if we actually need it.
+        if @text.width > width || @text.height > height
+          Gosu.clip_to(@x, @y, width, height) do
+            @text.draw
+          end
+        else
+          @text.draw
+        end
       end
 
       def recalculate
@@ -36,8 +43,8 @@ module CyberarmEngine
 
         handle_text_wrapping(_width)
 
-        @width  = _width  || @text.width.round
-        @height = _height || @text.height.round
+        @width  = _width  || @text.width.floor
+        @height = _height || @text.height.floor
 
         @text.y = @style.border_thickness_top + @style.padding_top + @y
         @text.z = @z + 3

lib/cyberarm_engine/ui/gui_state.rb

@@ -12,7 +12,7 @@ module CyberarmEngine
 
       @root_container = Element::Stack.new(gui_state: self)
       @game_objects << @root_container
-      $__current_container__ = @root_container
+      CyberarmEngine::Element::Container.current_container = @root_container
 
       @active_width  = window.width
       @active_height = window.height
@@ -90,6 +90,8 @@ module CyberarmEngine
       @menu&.update
       super
 
+      return unless window.has_focus?
+
       new_mouse_over = @menu.hit_element?(window.mouse_x, window.mouse_y) if @menu
       new_mouse_over ||= @root_container.hit_element?(window.mouse_x, window.mouse_y)
 
@@ -135,10 +137,6 @@ module CyberarmEngine
       @active_height = window.height
     end
 
-    def tool_tip_delay
-      250 # ms
-    end
-
     def button_down(id)
       super
 
@@ -175,6 +173,10 @@ module CyberarmEngine
       @focus.button_up(id) if @focus.respond_to?(:button_up)
     end
 
+    def tool_tip_delay
+      @tip.style.delay || 250 # ms
+    end
+
     def redirect_mouse_button(button)
       hide_menu unless @menu && (@menu == @mouse_over) || (@mouse_over&.parent == @menu)
 

lib/cyberarm_engine/ui/theme.rb

@@ -154,6 +154,7 @@ module CyberarmEngine
       },
 
       ToolTip: { # < TextBlock
+        delay: 100, # ms
         color: Gosu::Color::WHITE,
         padding_top: 4,
         padding_bottom: 4,

lib/cyberarm_engine/version.rb

@@ -1,4 +1,4 @@
 module CyberarmEngine
   NAME    = "InDev".freeze
-  VERSION = "0.20.0".freeze
+  VERSION = "0.21.0".freeze
 end

lib/cyberarm_engine/window.rb

@@ -8,21 +8,33 @@ module CyberarmEngine
 
     attr_accessor :show_cursor
     attr_writer :exit_on_opengl_error
-    attr_reader :last_frame_time
+    attr_reader :last_frame_time, :states
 
     def self.now
       Gosu.milliseconds
     end
 
     def self.dt
-      $window.last_frame_time / 1000.0
+      instance.last_frame_time / 1000.0
+    end
+
+    def self.instance=(window)
+      raise ArgumentError, "Expected window to be a subclass of CyberarmEngine::Window, got: #{window.class}" unless window.is_a?(CyberarmEngine::Window)
+
+      @@instance = window
+    end
+
+    def self.instance
+      @@instance
     end
 
     def initialize(width: 800, height: 600, fullscreen: false, update_interval: 1000.0 / 60, resizable: false, borderless: false)
       @show_cursor = false
+      @has_focus = false
 
       super(width, height, fullscreen: fullscreen, update_interval: update_interval, resizable: resizable, borderless: borderless)
-      $window = self
+      Window.instance = self
+
       @last_frame_time = Gosu.milliseconds - 1
       @current_frame_time = Gosu.milliseconds
       self.caption = "CyberarmEngine #{CyberarmEngine::VERSION} #{Gosu.language}"
@@ -34,13 +46,14 @@ module CyberarmEngine
     end
 
     def draw
-      current_state.draw if current_state
+      current_state&.draw
     end
 
     def update
       Stats.clear
 
-      current_state.update if current_state
+      current_state&.update
+
       @last_frame_time = Gosu.milliseconds - @current_frame_time
       @current_frame_time = Gosu.milliseconds
     end
@@ -49,6 +62,48 @@ module CyberarmEngine
       @show_cursor
     end
 
+    def needs_redraw?
+      current_state ? current_state.needs_redraw? : true
+    end
+
+    def drop(filename)
+      current_state&.drop(filename)
+    end
+
+    def gamepad_connected(index)
+      current_state&.gamepad_connected(index)
+    end
+
+    def gamepad_disconnected(index)
+      current_state&.gamepad_disconnected(index)
+    end
+
+    def gain_focus
+      @has_focus = true
+
+      current_state&.gain_focus
+    end
+
+    def lose_focus
+      @has_focus = false
+
+      current_state&.lose_focus
+    end
+
+    def button_down(id)
+      super
+      current_state&.button_down(id)
+    end
+
+    def button_up(id)
+      super
+      current_state&.button_up(id)
+    end
+
+    def close
+      current_state ? current_state.close : super
+    end
+
     def dt
       @last_frame_time / 1000.0
     end
@@ -61,16 +116,6 @@ module CyberarmEngine
       @exit_on_opengl_error
     end
 
-    def button_down(id)
-      super
-      current_state.button_down(id) if current_state
-    end
-
-    def button_up(id)
-      super
-      current_state.button_up(id) if current_state
-    end
-
     def push_state(klass, options = {})
       options = { setup: true }.merge(options)
 
@@ -108,6 +153,10 @@ module CyberarmEngine
       @states.shift
     end
 
+    def has_focus?
+      @has_focus
+    end
+
     # Sourced from https://gist.github.com/ippa/662583
     def draw_circle(cx, cy, r, z = 9999, color = Gosu::Color::GREEN, step = 10)
       0.step(360, step) do |a1|