3 * Support multiple TileSets per TMX map.
5 * Add brief or brief+long Doxygen Documentation to all public and private
6 classes, functions, structs, and enums.
8 * Create our own C++ wrapper of libxml2 so we can use std::strings to avoid
11 * Support for persistent music.
13 * Preserve aspect ratio in fullscreen.
15 * Try moving descriptor filenames from constructors + class members to init()
18 * Fix the --help option's formatting.
20 * Tsunagari loses access to the console once the game window is opened on
23 * Diagonal movement in all modes with correct input detection.
25 * Entity movement speed should be declared in Entity descriptor.