Replace StrEnum types with Literal types.

Several StrEnum types have been replaced with literal
types, including `Anchor` which breaks everything.
This is motivated by a desire to simplify the public api
of this library.

examples/advanced/connect4/connect4/__main__.py

@@ -22,13 +22,9 @@ def __init__(self):
         self._board = Board()
         h, w = self._board.size
 
-        super().__init__(
-            size=(h + 2, w),
-            pos_hint=(0.5, 0.5),
-            anchor="center",
-        )
+        super().__init__(size=(h + 2, w), pos_hint=(0.5, 0.5))
 
-        self._label = TextWidget(size=(1, 10), pos_hint=(None, 0.5), anchor="center")
+        self._label = TextWidget(size=(1, 10), pos_hint=(None, 0.5))
         self.add_widgets(self._board, self._label)
 
     def on_add(self):

examples/advanced/doom_fire.py

@@ -10,7 +10,7 @@
 from nurses_2.colors import Color, ColorPair
 from nurses_2.widgets.graphic_widget import GraphicWidget
 from nurses_2.widgets.slider import Slider
-from nurses_2.widgets.text_widget import Anchor, TextWidget
+from nurses_2.widgets.text_widget import TextWidget
 from nurses_2.widgets.widget import Widget
 
 FIRE_PALETTE = np.array(
@@ -133,7 +133,7 @@ async def on_start(self):
         strength_label = TextWidget(
             size=(1, 22),
             pos_hint=(None, 0.5),
-            anchor=Anchor.TOP_CENTER,
+            anchor="top",
             default_color_pair=SLIDER_DEFAULT,
         )
         strength_label.add_str(f"Current Strength: {doomfire.fire_strength:2d}", (0, 1))
@@ -153,9 +153,7 @@ def slider_update(v):
             handle_color_pair=SLIDER_HANDLE,
         )
 
-        slider_container = Widget(
-            size=(2, 38), pos_hint=(0, 0.5), anchor=Anchor.TOP_CENTER
-        )
+        slider_container = Widget(size=(2, 38), pos_hint=(0, 0.5), anchor="top")
         slider_container.add_widgets(strength_label, slider)
         self.add_widgets(doomfire, slider_container)
 

examples/advanced/fonts.py

@@ -131,7 +131,6 @@ async def on_start(self):
             size=button_canvas.shape,
             pos=(10, 0),
             pos_hint=(None, 0.5),
-            anchor="center",
             is_transparent=True,
         )
         button.canvas["char"] = button_canvas
@@ -140,9 +139,7 @@ async def on_start(self):
         banner = TextWidget(size=(h, w), is_transparent=True)
         banner.canvas["char"] = banner_canvas
 
-        bleed = Bleed(
-            banner, button, size=(h + 9, w), pos_hint=(0.5, 0.5), anchor="center"
-        )
+        bleed = Bleed(banner, button, size=(h + 9, w), pos_hint=(0.5, 0.5))
 
         self.add_widget(bleed)
 

examples/advanced/hack/hack/__main__.py

@@ -45,9 +45,7 @@ async def on_start(self):
 
         modal.memory = memory
 
-        terminal = Image(
-            path=TERMINAL, size=(36, 63), pos_hint=(0.5, 0.5), anchor="center"
-        )
+        terminal = Image(path=TERMINAL, size=(36, 63), pos_hint=(0.5, 0.5))
         container = BOLDCRT(
             size=(22, 53),
             pos=(5, 5),

examples/advanced/hack/hack/modal.py

@@ -30,7 +30,6 @@ def __init__(self, **kwargs):
         self.message_box = TextWidget(
             size=(6, 20),
             pos_hint=(0.5, 0.5),
-            anchor="center",
             default_color_pair=DEFAULT_COLOR_PAIR,
         )
         self.message_box.add_border("heavy")

examples/advanced/io_events.py

@@ -312,14 +312,14 @@ def on_mouse(self, mouse_event):
 
 class InputApp(App):
     async def on_start(self):
-        keyboard = KeyboardWidget(pos_hint=(0.5, 0), anchor="left_center")
-        mouse = MouseWidget(pos_hint=(0.5, 1.0), anchor="right_center")
+        keyboard = KeyboardWidget(pos_hint=(0.5, 0), anchor="left")
+        mouse = MouseWidget(pos_hint=(0.5, 1.0), anchor="right")
 
         container_size = (
             max(keyboard.height, mouse.height),
             keyboard.width + mouse.width + 2,
         )
-        container = Widget(size=container_size, pos_hint=(0.5, 0.5), anchor="center")
+        container = Widget(size=container_size, pos_hint=(0.5, 0.5))
         container.add_widgets(keyboard, mouse)
         self.add_widget(container)
 

examples/advanced/minesweeper/minesweeper/minefield.py

@@ -5,7 +5,7 @@
 
 from nurses_2.io import MouseButton, MouseEventType
 
-from .colors import *
+from .colors import FLAG_COLOR, HIDDEN, HIDDEN_REVERSED
 from .grid import Grid
 from .unicode_chars import FLAG
 
@@ -232,3 +232,12 @@ def render(self, canvas_view, colors_view, source: tuple[slice, slice]):
         colors_view[visible] = self.colors[source][visible]
 
         self.render_children(source, canvas_view, colors_view)
+
+        if self.hidden_cells.sum() == self.nmines:
+            self._game_over(win=True)
+            return
+
+    def _game_over(self, win: bool):
+        self.hidden[:] = 0
+        self._is_gameover = True
+        self.parent.game_over(win=win)

examples/advanced/minesweeper/minesweeper/minesweeper.py

@@ -4,14 +4,23 @@
 import numpy as np
 
 from nurses_2.widgets.behaviors.button_behavior import ButtonBehavior
-from nurses_2.widgets.text_widget import Anchor, Point, TextWidget
+from nurses_2.widgets.text_widget import Point, TextWidget
 from nurses_2.widgets.widget import Widget
 
 from .colors import DATA_BAR, FLAG_COLOR
 from .count import Count
 from .grid import Grid
 from .minefield import Minefield
-from .unicode_chars import *
+from .unicode_chars import (
+    BAD_FLAG,
+    BOMB,
+    COOL,
+    EXPLODED,
+    FLAG,
+    HAPPY,
+    KNOCKED_OUT,
+    SURPRISED,
+)
 
 SIZE = 16, 30
 NMINES = 99
@@ -47,7 +56,7 @@ def __init__(self, pos=Point(0, 0), **kwargs):
 
         self.timer = TextWidget(
             size=(1, 20),
-            anchor=Anchor.TOP_RIGHT,
+            anchor="top-right",
             pos_hint=(None, 0.95),
             default_color_pair=DATA_BAR,
         )
@@ -64,7 +73,6 @@ def __init__(self, pos=Point(0, 0), **kwargs):
         self.reset_button = ResetButton(
             size=(1, 2),
             default_color_pair=DATA_BAR,
-            anchor=Anchor.CENTER,
             pos_hint=(None, 0.5),
         )
 

examples/advanced/palettes.py

@@ -124,7 +124,7 @@ def update_palette():
 
         hue_selector.callback = slope_selector.callback = update_palette
 
-        container = Widget(size=(H + 2, W), pos_hint=(0.5, 0.5), anchor="center")
+        container = Widget(size=(H + 2, W), pos_hint=(0.5, 0.5))
         container.add_widgets(hue_selector, slope_selector, palette)
         self.add_widget(container)
 

examples/advanced/rigid_body_physics.py

@@ -4,9 +4,9 @@
 Requires `pymunk`
 """
 import asyncio
-from enum import Enum
 from math import ceil, degrees
 from pathlib import Path
+from typing import Literal
 
 import cv2
 import numpy as np
@@ -23,13 +23,6 @@
 )
 from nurses_2.widgets.image import Image
 
-
-class RenderMode(str, Enum):
-    OUTLINE = "outline"
-    FILL = "fill"
-    SPRITE = "sprite"
-
-
 BOX_SIZE = W, H = Vec2d(9, 9)
 BOX_MASS = 0.1
 BALL_MASS = 100
@@ -54,14 +47,14 @@ def __init__(
         self,
         space: pymunk.Space,
         dt: float = 0.01,
-        render_mode: RenderMode = RenderMode.SPRITE,
+        render_mode: Literal["outline", "fill", "sprite"] = "sprite",
         shape_color: AColor = AWHITE,
         **kwargs,
     ):
         super().__init__(**kwargs)
         self.space = space
         self.dt = dt
-        self.render_mode = RenderMode(render_mode)
+        self.render_mode = render_mode
         self.shape_color = shape_color
 
     def stop_simulation(self):
@@ -91,7 +84,7 @@ def _draw_space(self):
 
         for shape in self.space.shapes:
             if isinstance(shape, pymunk.shapes.Segment):
-                if self.render_mode is not RenderMode.SPRITE:
+                if self.render_mode != "sprite":
                     a = shape.a.rotated(shape.body.angle) + shape.body.position
                     b = shape.b.rotated(shape.body.angle) + shape.body.position
                     cv2.line(
@@ -101,7 +94,7 @@ def _draw_space(self):
                         self.shape_color,
                     )
             elif isinstance(shape, pymunk.shapes.Poly):
-                if self.render_mode is RenderMode.SPRITE:
+                if self.render_mode == "sprite":
                     angle = degrees(shape.body.angle)
                     rot = cv2.getRotationMatrix2D(BOX_CENTER, angle, 1)
                     box = cv2.boxPoints((BOX_CENTER, BOX_SIZE, angle))
@@ -127,7 +120,7 @@ def _draw_space(self):
                             for vertex in shape.get_vertices()
                         ]
                     )
-                    if self.render_mode is RenderMode.FILL:
+                    if self.render_mode == "fill":
                         cv2.fillPoly(self.texture, [vertices], color=self.shape_color)
                     else:
                         cv2.polylines(
@@ -137,7 +130,7 @@ def _draw_space(self):
                             color=self.shape_color,
                         )
             elif isinstance(shape, pymunk.shapes.Circle):
-                if self.render_mode is RenderMode.SPRITE:
+                if self.render_mode == "sprite":
                     angle == degrees(shape.body.angle)
                     rot = cv2.getRotationMatrix2D(BALL_CENTER, angle, 1)
                     src = cv2.warpAffine(BALL, rot, BALL_SIZE)
@@ -149,7 +142,7 @@ def _draw_space(self):
                     pos = shape.body.position
                     center = to_tex_coords(pos)
                     circle_edge = pos + Vec2d(shape.radius, 0).rotated(shape.body.angle)
-                    if self.render_mode is RenderMode.FILL:
+                    if self.render_mode == "fill":
                         cv2.circle(
                             self.texture,
                             center,

examples/advanced/sandbox/sandbox/sandbox.py

@@ -4,7 +4,7 @@
 
 from nurses_2.colors import ABLACK, ColorPair
 from nurses_2.io import MouseButton
-from nurses_2.widgets.graphic_widget import Anchor, GraphicWidget, Size
+from nurses_2.widgets.graphic_widget import GraphicWidget, Size
 from nurses_2.widgets.text_widget import TextWidget
 
 from .element_buttons import MENU_BACKGROUND_COLOR, ButtonContainer
@@ -25,9 +25,7 @@ class Sandbox(GraphicWidget):
     """
 
     def __init__(self, size: Size):
-        super().__init__(
-            size=size, anchor=Anchor.CENTER, pos_hint=(0.5, 0.5), default_color=ABLACK
-        )
+        super().__init__(size=size, pos_hint=(0.5, 0.5), default_color=ABLACK)
 
     def on_add(self):
         super().on_add()
@@ -40,7 +38,6 @@ def on_add(self):
         self.display = TextWidget(
             size=(1, 9),
             pos=(1, 0),
-            anchor=Anchor.CENTER,
             pos_hint=(None, 0.5),
             default_color_pair=ColorPair.from_colors(Air.COLOR, MENU_BACKGROUND_COLOR),
         )

examples/advanced/shadow_casting.py

@@ -62,7 +62,6 @@ async def on_start(self):
 
         caster = ShadowCaster(
             size=(17, 34),
-            anchor="center",
             map=map_,
             camera=Camera((0, 0), (34, 34)),
             tile_colors=[AWHITE, ACYAN, AMAGENTA],
@@ -196,7 +195,7 @@ def callback(state):
         )
         grid_layout.size = grid_layout.minimum_grid_size
 
-        container = Widget(pos_hint=(0.5, 0.5), anchor="center", size=(17, 58))
+        container = Widget(pos_hint=(0.5, 0.5), size=(17, 58))
         container.add_widgets(caster, grid_layout)
         self.add_widget(container)
 

examples/advanced/snake.py

@@ -122,14 +122,9 @@ async def _update(self):
 
 class SnakeApp(App):
     async def on_start(self):
-        kwargs = dict(
-            size=(HEIGHT // 2, WIDTH),
-            pos_hint=(0.5, 0.5),
-            anchor="center",
-        )
-
+        kwargs = dict(size=(HEIGHT // 2, WIDTH), pos_hint=(0.5, 0.5))
         background = Animation(path=SPINNER, alpha=0.5, **kwargs)
-        # background.play()
+        background.play()
         snake = Snake(**kwargs)
 
         self.add_widgets(background, snake)

examples/advanced/sph/sph/__main__.py

@@ -5,7 +5,7 @@
 from nurses_2.app import App
 from nurses_2.colors import BLACK, WHITE_ON_BLACK, Color, ColorPair
 from nurses_2.io import MouseButton
-from nurses_2.widgets.graphic_widget import Anchor, GraphicWidget
+from nurses_2.widgets.graphic_widget import GraphicWidget
 from nurses_2.widgets.slider import Slider
 from nurses_2.widgets.text_widget import TextWidget
 
@@ -95,7 +95,6 @@ async def on_start(self):
         container = TextWidget(
             size=(height, width),
             pos_hint=(0.5, 0.5),
-            anchor=Anchor.CENTER,
             default_color_pair=WHITE_ON_BLACK,
         )
 

examples/advanced/tetris/tetris/__main__.py

@@ -1,12 +1,11 @@
 from nurses_2.app import App
-from nurses_2.widgets.widget_data_structures import Anchor
 
 from .tetris import Tetris
 
 
 class TetrisApp(App):
     async def on_start(self):
-        tetris = Tetris(pos_hint=(0.5, 0.5), anchor=Anchor.CENTER)
+        tetris = Tetris(pos_hint=(0.5, 0.5))
 
         self.add_widget(tetris)
 

examples/advanced/tetris/tetris/modal_screen.py

@@ -3,7 +3,7 @@
 import numpy as np
 
 from nurses_2.colors import BLACK, Color, ColorPair, gradient
-from nurses_2.widgets.text_widget import Anchor, TextWidget
+from nurses_2.widgets.text_widget import TextWidget
 
 LIGHT_PURPLE = Color.from_hex("8d46dd")
 DARK_PURPLE = Color.from_hex("190c54")
@@ -78,14 +78,12 @@
 class ModalScreen(TextWidget):
     def __init__(
         self,
-        anchor=Anchor.CENTER,
         pos_hint=(0.5, 0.5),
         is_enabled=False,
         **kwargs,
     ):
         super().__init__(
             size=(10, 70),
-            anchor=anchor,
             pos_hint=pos_hint,
             is_enabled=is_enabled,
             **kwargs,

examples/advanced/tetris/tetris/tetris.py

@@ -163,10 +163,10 @@ def __init__(self, matrix_size=(22, 10), arika=True, **kwargs):
         for widget in self.walk():
             setup_background(widget)
 
-        self.held_piece = Piece(pos_hint=(0.5, 0.5), anchor="center", is_enabled=False)
+        self.held_piece = Piece(pos_hint=(0.5, 0.5), is_enabled=False)
         held_space.add_widget(self.held_piece)
 
-        self.next_piece = Piece(pos_hint=(0.5, 0.5), anchor="center", is_enabled=False)
+        self.next_piece = Piece(pos_hint=(0.5, 0.5), is_enabled=False)
         next_space.add_widget(self.next_piece)
 
         self.matrix = np.zeros(matrix_size, dtype=np.bool8)