Creature respawn

[crankycyclops]

When a creature is killed, the game developer should be able to decide whether or not it will respawn.

[crankycyclops]

In addition to whether or not it's respawnable, should also be able to specify probability of respawn. There should also be a configurable amount of time between when the creature dies and when it respawns, with some default value.

[crankycyclops]

This will be an event / timer duo. The event trigger will execute when the Being dies. If the being is configured with respawn = true, then a timer job will be started for that Being, which will set it back to life after the specified time interval.

[crankycyclops]

There should be messaging involved when the creature respawns, so that players in the room know that a player or creature respawned. Yeah, about configuration... Make sure that we can configure respawn both for players (just default player settings right now) and creatures.

[crankycyclops]

Should be a Being::respawn() function. If interval = 0, then call this directly from event trigger. Otherwise, set a timed job at the specified interval, and have that execute Being::respawn().

[crankycyclops]

#41 will have to be fixed before I can continue on this :(

[crankycyclops]

commit 9c4e483: added timer job for Being respawn.

[crankycyclops]

This is done, but messaging during combat is messed up now. It's because respawn is called by afterDie before the death message goes out. Fix this somehow...