game_messages.py

'''
Copyright (C) 2018 Stefano Peris <xenonlab.develop@gmail.com>

Github repository: <https://github.com/XenonLab-Studio/The_Dungeon_of_Sin.git>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
'''


import libtcodpy as libtcod

import textwrap


class Message:
    def __init__(self, text, color=libtcod.white):
        self.text = text
        self.color = color


class MessageLog:
    def __init__(self, x, width, height):
        self.messages = []
        self.x = x
        self.width = width
        self.height = height

    def add_message(self, message):
        # Split the message if necessary, among multiple lines
        new_msg_lines = textwrap.wrap(message.text, self.width)

        for line in new_msg_lines:
            # If the buffer is full, remove the first line to make room for the new one
            if len(self.messages) == self.height:
                del self.messages[0]

            # Add the new line as a Message object, with the text and the color
            self.messages.append(Message(line, message.color))