fix proper map tile blocking
debug out player move request offset
fix adding all sprites even those who are not defined in story.py.
fix loading ObjectTiles without names
fix loading ObjectTile type propery
add blocking of other MapObjects, if they are in the blocklist, unless its an AI which fires a CombatEvent
neaten the state process event
neaten function name
add MessageEvent
make event strings consistent. fix MessageEvent param name bug.
basic melee combat system
add GameOverEvent
handle GameOverEvent input
add GameStartEvent
handle GameStartEvent from the menu if not playing
track playing state with proper calls to begin a new game
draw game over message