Menu_02.py差异

menu_02.py

--- /pb1/repo/arcade/doc/tutorials/menu/menu_01.py
+++ /pb1/repo/arcade/doc/tutorials/menu/menu_02.py
@@ -4,6 +4,7 @@
 Shows the usage of almost every gui widget, switching views and making a modal.
 """
 import arcade
+import arcade.gui
 
 # Screen title and size
 SCREEN_WIDTH = 800
@@ -12,19 +13,79 @@
 
 
 class MainView(arcade.View):
-    """ Main application class."""
+    """This is the class where your normal game would go."""
 
     def __init__(self):
         super().__init__()
+
+        self.manager = arcade.gui.UIManager()
+
+        switch_menu_button = arcade.gui.UIFlatButton(text="Pause", width=250)
+
+        # Initialise the button with an on_click event.
+        @switch_menu_button.event("on_click")
+        def on_click_switch_button(event):
+            # Passing the main view into menu view as an argument.
+            menu_view = MenuView(self)
+            self.window.show_view(menu_view)
+
+        # Use the anchor to position the button on the screen.
+        self.anchor = self.manager.add(arcade.gui.UIAnchorLayout())
+
+        self.anchor.add(
+            anchor_x="center_x",
+            anchor_y="center_y",
+            child=switch_menu_button,
+        )
+
+    def on_hide_view(self):
+        # Disable the UIManager when the view is hidden.
+        self.manager.disable()
 
     def on_show_view(self):
         """ This is run once when we switch to this view """
         arcade.set_background_color(arcade.color.DARK_BLUE_GRAY)
 
+        # Enable the UIManager when the view is showm.
+        self.manager.enable()
+
     def on_draw(self):
         """ Render the screen. """
         # Clear the screen
         self.clear()
+
+        # Draw the manager.
+        self.manager.draw()
+
+
+class MenuView(arcade.View):
+    """Main menu view class."""
+
+    def __init__(self, main_view):
+        super().__init__()
+
+        self.manager = arcade.gui.UIManager()
+
+        self.main_view = main_view
+
+    def on_hide_view(self):
+        # Disable the UIManager when the view is hidden.
+        self.manager.disable()
+
+    def on_show_view(self):
+        """ This is run once when we switch to this view """
+
+        # Makes the background darker
+        arcade.set_background_color([rgb - 50 for rgb in arcade.color.DARK_BLUE_GRAY])
+
+        self.manager.enable()
+
+    def on_draw(self):
+        """ Render the screen. """
+
+        # Clear the screen
+        self.clear()
+        self.manager.draw()
 
 
 def main():