Progress at night

1 files changed, 52 insertions, 0 deletions

diff --git a/txtgameengine/input/keyboard.py b/txtgameengine/input/keyboard.py
new file mode 100644
index 0000000..1938016
--- /dev/null
+++ b/txtgameengine/input/keyboard.py
@@ -0,0 +1,52 @@
+from enum import IntFlag
+import glfw
+import typing
+from dataclasses import dataclass
+
+if typing.TYPE_CHECKING:
+    from ..scenes import Scene
+
+    SceneLike = typing.TypeAlias('SceneLike', typing.Union[Scene, typing.Type[Scene]])
+
+
+class ModKey(IntFlag):
+    SHIFT = glfw.MOD_SHIFT
+    CONTROL = glfw.MOD_CONTROL
+    ALT = glfw.MOD_ALT
+    SUPER = glfw.MOD_SUPER
+
+
+@dataclass
+class KeyboardEvent:
+    window: typing.Any
+    keycode: int
+    scancode: int
+    action: int
+    mod_keys: int
+
+    def has_modkey(self, modkey: ModKey):
+        return bool(self.mod_keys & modkey)
+
+
+class KeyboardCallbackBuilder:
+    def __init__(self, app):
+        self.app = app
+        self.scene = None
+        self.required_mod_keys = ModKey(0)
+
+    def build(self, callback: typing.Callable[[KeyboardEvent], None]):
+        KeyboardCallback(self.required_mod_keys, callback)
+
+    def only_in_scene(self, scene: 'SceneLike'):
+        self.scene = scene
+        return self
+
+    def with_mod_key(self, mod_key: ModKey):
+        self.required_mod_keys |= mod_key
+        return self
+
+
+class KeyboardCallback:
+    def __init__(self, required_mod_keys, callback: typing.Callable[[KeyboardEvent], None]):
+        self.required_mod_keys = required_mod_keys
+        self.callback = callback