Hmm, if you only have one system, then yes, those are the same.
But if you have multiple systems (say collision detection, physics, damage/health, control(ai or player)) you can then build things up lego brick style.
For example, a basic wall will just participate in the collision detection system and nothing else, but now it's easy to add in breakable walls by giving them a hp value and defence value for the damage system.
But if you have multiple systems (say collision detection, physics, damage/health, control(ai or player)) you can then build things up lego brick style.
For example, a basic wall will just participate in the collision detection system and nothing else, but now it's easy to add in breakable walls by giving them a hp value and defence value for the damage system.
Does that help?