From a0a40e9259b9e8be4e677c8c29dfdfb89eb81ce8 Mon Sep 17 00:00:00 2001
From: Jonas Bernard <public.jbernard@web.de>
Date: Sat, 24 Apr 2021 04:19:39 +0200
Subject: Progress at night

---
 txtgameengine/input/__init__.py  |  0
 txtgameengine/input/callbacks.py | 31 ++++++++++++++++++++++++
 txtgameengine/input/keyboard.py  | 52 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 83 insertions(+)
 create mode 100644 txtgameengine/input/__init__.py
 create mode 100644 txtgameengine/input/callbacks.py
 create mode 100644 txtgameengine/input/keyboard.py

(limited to 'txtgameengine/input')

diff --git a/txtgameengine/input/__init__.py b/txtgameengine/input/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/txtgameengine/input/callbacks.py b/txtgameengine/input/callbacks.py
new file mode 100644
index 0000000..476c103
--- /dev/null
+++ b/txtgameengine/input/callbacks.py
@@ -0,0 +1,31 @@
+import typing
+from .keyboard import ModKey, KeyboardCallback, KeyboardEvent, KeyboardCallbackBuilder
+
+if typing.TYPE_CHECKING:
+    from ..app import TxtGameApp
+
+
+class CallbackHandler:
+    def __init__(self, app: 'TxtGameApp'):
+        self.app = app
+        self.keyboard_callbacks: typing.List[KeyboardCallback] = []
+
+    def register_keyboard_callback(self, callback: KeyboardCallback):
+        self.keyboard_callbacks.append(callback)
+
+    def get_keyboard_input_callback(self, window: typing.Any, keycode: int, scancode: int, action: int, mod_keys: int):
+        event = KeyboardEvent(window, keycode, scancode, action, ModKey(mod_keys))
+        for callback in self.keyboard_callbacks:
+            if event.mod_keys == callback.required_mod_keys:
+                continue
+
+            callback.callback(event)
+
+    def get_mouse_move_callback(self, window: typing.Any, pos_x: float, pos_y: float):
+        pass
+
+    def get_mouse_click_callback(self, window: typing.Any, button: int, action: int, mod_keys: int):
+        pass
+
+    def keyboard_callback(self) -> KeyboardCallbackBuilder:
+        return KeyboardCallbackBuilder(self.app)
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
-- 
cgit