Base Ability

The abilities are structured from a base class that contain the shared logic for derivatives:

• start_ability() - checks if ability can be used, chooses and plays animation
• cast_ability() - update player state and stamina, wait for cast_time, then perform_ability()
• perform_ability() - template method to override in subclass
• cooldown() - runs timer and resets states

Derived Classes

Abilities are then split into three categories:

• Area - overrides perform_ability() to spawn a collider at selected area.
• Target - overrides perform_ability() to just decrease health of target.
• Aura - overrides perform_ability() to instantiate a passive ability effect.

Then for the actual abilities I save them as Resources with modified data to have them feel different.