Features

Must

Should

bug: MoveTo action stops after a while; why? MoveTo has a duration based on time, even when it shouldn't have any.
Sim movement is subjugated to Time.
Place furniture.
Move furniture.
Build.
Player can cancel currently developing Actions.
Different Furnitures affect different to the Needs based on their stats.
Free will. Resource.
Sims can themselves cancel Actions (based on mood, inability to perform, etc.).

Could

Add the rest of Needs (Room, Fun & Social).
Add the rest of Actions.
Make laying to restore Comfort.
Work.
Buy & building cost simoleons.
Adequate Needs increment values of Furnitures to the real ones:
- Ranges from 1 to 10.
- Also, Needs values goes from -100 to 100.
Hours & days.

Won't have

Sim & family creation.
Neighborhood.
Personality.
Work carreers.

Refactors

Create a "gauge" for ints that are clamped between two values.
Make Sim.Perform(Action) private. Sim should encapsulate which action it must perform, taking into account the Action Queue.