Question How to design such functionality in ECS

For instance, in an RPG game, the player controls a warrior wielding a sword. When the player commands the warrior to swing the sword, the character plays the corresponding swinging animation. If the sword makes contact with an enemy, it deals damage and applies effects based on the player's skills. For example, if the player has a skill that causes stun, the enemy might become stunned. Similarly, if an enemy swings their sword at the player, the system checks if the player possesses skills like damage reflection.

My initial thought is to utilize colliders for implementation. For instance, activate the collider at a specific animation frame (e.g., the first quarter of the swinging animation). However, this approach could face challenges. For instance, with an organic creature's melee attack, like a creature capable of biting, a collider might need to be placed specifically at its mouth.

Additionally, regarding the computation of bonus effects mentioned above, it might be suitable to have a dedicated system for handling them.

As for an RPG's combat system, based on theory and experience, would it suffice to manage it within a single system?

 

Hey @Bagazi

I don't think super accurate collision detection is really needed. Most games use simpler methods like Ray/Shape Casts for attacks, such as a sword swipe.

Usually, RPG games use a Skill/Ability system for special attacks and effects, but it depends on the game itself.

Unfortunately, Unity doesn't offer a solution for this, but you can check out Unreal's Gameplay Ability System documentation and resources to create your own implementation using DOTS.