Cut the main loop into smaller functions to have more modularity
Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>
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e8fa0ece22
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GPG Key ID:
3A75C55819C8CF85
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@ -73,102 +73,7 @@ class Squinnondation:
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squirrel.hazelnuts[(instance.args.client_address, instance.args.client_port)] = hazelnut
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Worm(squirrel).start()
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while True:
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squirrel.refresh_history()
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squirrel.refresh_input()
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if not instance.no_emoji:
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squirrel.refresh_emoji_pad()
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key = screen.getkey(curses.LINES - 1, 3 + len(squirrel.nickname) + squirrel.input_index)
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if key == "\x7f": # backspace
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if squirrel.input_index:
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squirrel.input_index -= 1
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squirrel.input_buffer = squirrel.input_buffer[:squirrel.input_index] \
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+ squirrel.input_buffer[squirrel.input_index + 1:]
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continue
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elif key == "KEY_LEFT":
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squirrel.input_index = max(0, squirrel.input_index - 1)
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continue
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elif key == "KEY_RIGHT":
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squirrel.input_index = min(len(squirrel.input_buffer), squirrel.input_index + 1)
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continue
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elif key == "KEY_UP":
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squirrel.last_line = min(max(curses.LINES - 3, squirrel.last_line - 1), len(squirrel.history) - 1)
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continue
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elif key == "KEY_DOWN":
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squirrel.last_line = min(len(squirrel.history) - 1, squirrel.last_line + 1)
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continue
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elif key == "KEY_PPAGE":
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squirrel.last_line = min(max(curses.LINES - 3, squirrel.last_line - (curses.LINES - 3)),
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len(squirrel.history) - 1)
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continue
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elif key == "KEY_NPAGE":
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squirrel.last_line = min(len(squirrel.history) - 1, squirrel.last_line + (curses.LINES - 3))
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continue
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elif key == "KEY_HOME":
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squirrel.input_index = 0
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continue
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elif key == "KEY_END":
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squirrel.input_index = len(squirrel.input_buffer)
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continue
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elif key == "KEY_RESIZE":
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continue
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elif key == "KEY_MOUSE":
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try:
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_, x, y, _, attr = curses.getmouse()
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except curses.error:
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# This is not a valid click
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continue
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if not instance.no_emoji:
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if y == curses.LINES - 1 and x >= curses.COLS - 3:
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# Click on the emoji
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squirrel.emoji_panel_page *= -1
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elif squirrel.emoji_panel_page > 0 and y == curses.LINES - 4 and x >= curses.COLS - 5:
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squirrel.emoji_panel_page += 1
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elif squirrel.emoji_panel_page > 1 and y == curses.LINES - curses.LINES // 2 - 1 \
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and x >= curses.COLS - 5:
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squirrel.emoji_panel_page -= 1
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elif squirrel.emoji_panel_page > 0 and y >= curses.LINES // 2 - 1 and x >= curses.COLS // 2 - 1:
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pad_y, pad_x = y - (curses.LINES - curses.LINES // 2) + 1,\
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(x - (curses.COLS - curses.COLS // 3)) // 2
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height, width = squirrel.emoji_pad.getmaxyx()
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height -= 1
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width -= 1
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emojis = list(unicode_codes.UNICODE_EMOJI)
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emojis = [c for c in emojis if len(c) == 1]
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size = (height - 2) * (width - 4) // 2
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page = emojis[(squirrel.emoji_panel_page - 1) * size:squirrel.emoji_panel_page * size]
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index = pad_y * (width - 4) // 2 + pad_x
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char = page[index]
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if char:
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demojized = emoji.demojize(char)
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if char != demojized:
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for c in reversed(demojized):
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curses.ungetch(c)
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continue
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elif len(key) > 1:
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squirrel.add_system_message(f"unmanaged key press: {key}")
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continue
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elif key != "\n":
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squirrel.input_buffer = squirrel.input_buffer[:squirrel.input_index] + key \
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+ squirrel.input_buffer[squirrel.input_index:]
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squirrel.input_index += 1
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continue
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msg = squirrel.input_buffer
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squirrel.input_buffer = ""
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squirrel.input_index = 0
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if not msg:
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continue
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msg = f"<{squirrel.nickname}> {msg}"
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squirrel.add_message(msg)
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for hazelnut in list(squirrel.hazelnuts.values()):
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pkt = Packet.construct(DataTLV.construct(msg))
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squirrel.send_packet(hazelnut, pkt)
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squirrel.wait_for_key()
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class TLV:
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@ -238,8 +143,7 @@ class Pad1TLV(TLV):
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def handle(self, squirrel: "Squirrel", sender: "Hazelnut") -> None:
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# TODO Add some easter eggs
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squirrel.add_system_message(f"For each byte in the packet that I received, you will die today. "
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"And eat cookies.")
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squirrel.add_system_message("For each byte in the packet that I received, you will die today. And eat cookies.")
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@property
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def tlv_length(self) -> int:
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@ -312,7 +216,7 @@ class HelloTLV(TLV):
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+ (":3_hearts:" if self.is_long else "smiling_eyes:"))
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@property
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def is_long(self):
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def is_long(self) -> bool:
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return self.length == 16
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@ -608,6 +512,140 @@ class Squirrel(Hazelnut):
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"""
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return self.socket.recvfrom(1024)
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def wait_for_key(self) -> None:
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"""
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Infinite loop where we are waiting for a key of the user.
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"""
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while True:
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self.refresh_history()
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self.refresh_input()
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if not self.squinnondation.no_emoji:
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self.refresh_emoji_pad()
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key = self.squinnondation.screen.getkey(curses.LINES - 1, 3 + len(self.nickname) + self.input_index)
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if key == "KEY_MOUSE":
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try:
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_, x, y, _, attr = curses.getmouse()
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except curses.error:
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# This is not a valid click
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pass
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else:
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self.handle_mouse_click(y, x, attr)
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finally:
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continue
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self.handle_key_pressed(key)
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def handle_key_pressed(self, key: str) -> None:
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"""
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Process the key press from the user.
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"""
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if key == "\x7f": # backspace
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# delete character at the good position
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if self.input_index:
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self.input_index -= 1
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self.input_buffer = self.input_buffer[:self.input_index] + self.input_buffer[self.input_index + 1:]
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return
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elif key == "KEY_LEFT":
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# Navigate in the message to the left
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self.input_index = max(0, self.input_index - 1)
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return
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elif key == "KEY_RIGHT":
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# Navigate in the message to the right
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self.input_index = min(len(self.input_buffer), self.input_index + 1)
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return
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elif key == "KEY_UP":
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# Scroll up in the history
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self.last_line = min(max(curses.LINES - 3, self.last_line - 1), len(self.history) - 1)
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return
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elif key == "KEY_DOWN":
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# Scroll down in the history
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self.last_line = min(len(self.history) - 1, self.last_line + 1)
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return
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elif key == "KEY_PPAGE":
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# Page up in the history
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self.last_line = min(max(curses.LINES - 3, self.last_line - (curses.LINES - 3)), len(self.history) - 1)
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return
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elif key == "KEY_NPAGE":
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# Page down in the history
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self.last_line = min(len(self.history) - 1, self.last_line + (curses.LINES - 3))
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return
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elif key == "KEY_HOME":
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# Place the cursor at the beginning of the typing word
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self.input_index = 0
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return
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elif key == "KEY_END":
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# Place the cursor at the end of the typing word
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self.input_index = len(self.input_buffer)
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return
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elif len(key) > 1:
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# Unmanaged complex key
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return
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elif key != "\n":
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# Insert the pressed key in the current message
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self.input_buffer = self.input_buffer[:self.input_index] + key + self.input_buffer[self.input_index:]
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self.input_index += 1
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return
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# Send message to neighbours
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msg = self.input_buffer
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self.input_buffer = ""
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self.input_index = 0
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if not msg:
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return
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msg = f"<{self.nickname}> {msg}"
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self.add_message(msg)
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pkt = Packet.construct(DataTLV.construct(msg))
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for hazelnut in list(self.hazelnuts.values()):
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self.send_packet(hazelnut, pkt)
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def handle_mouse_click(self, y: int, x: int, attr: int) -> None:
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"""
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The user clicks on the screen, at coordinates (y, x).
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According to the position, we can indicate what can be done.
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"""
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if not self.squinnondation.no_emoji:
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if y == curses.LINES - 1 and x >= curses.COLS - 3:
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# Click on the emoji, open or close the emoji pad
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self.emoji_panel_page *= -1
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elif self.emoji_panel_page > 0 and y == curses.LINES - 4 and x >= curses.COLS - 5:
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# Open next emoji page
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self.emoji_panel_page += 1
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elif self.emoji_panel_page > 1 and y == curses.LINES - curses.LINES // 2 - 1 \
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and x >= curses.COLS - 5:
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# Open previous emoji page
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self.emoji_panel_page -= 1
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elif self.emoji_panel_page > 0 and y >= curses.LINES // 2 - 1 and x >= curses.COLS // 2 - 1:
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pad_y, pad_x = y - (curses.LINES - curses.LINES // 2) + 1, \
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(x - (curses.COLS - curses.COLS // 3) + 1) // 2
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# Click on an emoji on the pad to autocomplete an emoji
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self.click_on_emoji_pad(pad_y, pad_x)
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def click_on_emoji_pad(self, pad_y: int, pad_x: int) -> None:
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"""
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The emoji pad contains the list of all available emojis.
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Clicking on a emoji auto-complete the emoji in the input pad.
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"""
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height, width = self.emoji_pad.getmaxyx()
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height -= 1
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width -= 1
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emojis = list(unicode_codes.UNICODE_EMOJI)
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emojis = [c for c in emojis if len(c) == 1]
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size = (height - 2) * (width - 4) // 2
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page = emojis[(self.emoji_panel_page - 1) * size:self.emoji_panel_page * size]
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index = pad_y * (width - 4) // 2 + pad_x
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char = page[index]
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if char:
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demojized = emoji.demojize(char)
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if char != demojized:
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for c in reversed(demojized):
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curses.ungetch(c)
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def add_message(self, msg: str) -> None:
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"""
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Store a new message into the history.
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