Powerup Refactor

Suggested Architecture:

Player:

• Motivation: Player should not be very concerned with powerups, and are only responsible for things such as incrementing their own stats
• No longer deals with spawning powerup-related effects
• No longer has any behavior dictating how it should respond to being hit based on temporary armor effects (responsibility of the effect actor)
• Only increments their stat when ordered to
• Only remembers the current armor effect actor (if any) that is attached (so other powerups can override or refresh it)

Powerups:

• Motivation: Powerups should handle most of their behavior themselves, whether its the temporary armor effects, or the spawning VFX/SFX
• Split into 2 base BPs: InstantPowerup, TempPowerup
• TempPowerup has duration variable, so we can set a default global duration, or tweak individual powerups durations (correspondingly, this duration is removed from the player)
• InstantPowerups should just tell the player to increment their specific value
• TempPowerups should spawn an EffectActor attached to the player, that has a lifespan of duration
• Test to see if the player already has a powerup of the same class, and if so, refresh the lifespan

EffectActor (for TempPowerups):

• The armor effect will manifest as an actor (this is currently how it is implemented visually)
• Add a capsule collider bigger than the player to take the lazer hits for the player
• Invoke necessary behavior on player/lazer