phantomcastle: universal version + split

pygame-wasm/phantomcastle/common.py

@@ -0,0 +1,91 @@
+from abc import ABC, abstractmethod
+from typing import NamedTuple, Optional
+
+FONT_NAME = "Arial"
+
+from sys import platform
+
+IS_WASM = platform == "emscripten"
+
+import pygame
+
+from coords import Coords
+
+
+class SurfaceWithRect(NamedTuple):
+    surface: pygame.Surface
+    rect: pygame.Rect
+
+    def draw_to(self, target: pygame.Surface):
+        target.blit(self.surface, self.rect)
+
+
+class DrawableGameObject(ABC):
+    """обобщение игрового элемента"""
+
+    coords = property(
+        lambda self: self.get_coords(), lambda self, c: self.set_coords(c)
+    )
+
+    def __init__(
+        self,
+        coords: Coords,
+        parent: Optional["DrawableGameObject"] = None,
+        assets: dict | None = None,
+    ):
+        self.parent = parent
+        self.rect = pygame.Rect(coords, coords)
+        self.assets = assets or (parent.assets if parent else None)
+        self._surface = None
+        self._mask = None
+
+    def __str__(self):
+        return f"{self.__class__.__name__}({self.coords})"
+
+    @property
+    def surface(self) -> pygame.Surface | None:
+        return self._surface or (self.parent.surface if self.parent else None)
+
+    @property
+    def mask(self) -> pygame.Mask | None:
+        if not self._mask:
+            self._mask = pygame.mask.from_surface(self.surface.convert_alpha())
+        return self._mask
+
+    def overlap(self, rect: pygame.Rect, mask: pygame.Mask) -> bool:
+        if not self.rect.colliderect(rect):
+            return False
+
+        offset = Coords(*self.rect.topleft) - Coords(*rect.topleft)
+        overlap = mask.overlap(self.mask, offset)
+        return overlap is not None
+
+    @property
+    def scene(self):
+        return self.parent.scene if self.parent else self
+
+    def get_coords(self) -> Coords:
+        return Coords(*self.rect.topleft)
+
+    def set_coords(self, coords: Coords):
+        new_rect = self.rect.copy()
+        new_rect.topleft = coords
+        if self.parent:
+            if self.parent.rect:
+                if not self.parent.rect.contains(new_rect):
+                    return
+        self.rect = new_rect
+
+    @abstractmethod
+    def draw(self):
+        pass
+
+
+class EventHandler(ABC):
+    @abstractmethod
+    def handle_keys(self, keys_pressed):
+        pass
+
+    @abstractmethod
+    def handle_event(self):
+        pass