Questions tagged [entity-component-system]
The entity-component-system is an architectural pattern that uses very few and simple entity classes whose instances are dynamically composed of components that provide structural and behavioral features.
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How are ECS and DoD combined?
Where is this array of components over whitch queries are done to run through systems? How do the components get into those arrays? How does the query system work?
Does this combined system even have ...
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How can I better design systems and components in ECS?
I'm working on a game from scratch in C++ which is based on an Entity Component System and I've ran into a bit of a problem with the way I've been designing my systems and components. I find myself ...
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What is a common practice to refer to other datas within a data oriented design?
This question has been in my mind for a while now, especially in the context of high performance, interactive 3d applications. Just want to find out what is the general practices in DoD for ...
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What would the database schema look like for a Entity Component System architecture of web app?
I found previous SE questions like this.
I'm familiar with the typical RDBMS backed MVC web app framework. To illustrate what I am thinking of, let's use the examples of Bunny and Carrot from this [...
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Rust/specs – what is the good/idiomatic way of design level walls/static objects handling in an ECS architecture
Warning: long question ahead, don't be afraid, I just tried to be as precise as possible about details for who wants them but many paragraphs are skipables if you already understood what I want ;).
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How to model interaction between entities in ECS?
I am exploring the ECS pattern and my pet project is a simulation of an economy where the primary mode of interaction between economic agents is a transaction. Some of these agents are market makers (...
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Writing a data-oriented ECS update loop that handles multiple components
So I have an engine in progress that's structured like this:
entities are simple ids (unsigned short)
components are stored in pools which are static members
systems are stored by the manager, and ...
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Designing an Entity Component System for interfacing with a scripting language
I am currently building an Entity Component System (ECS) in cython in order to speed up operating on large numbers of game objects in python. In the process of building this system, I ran into the ...
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different collision geometries in a component based game engine
I'm writing a simple game engine and after a lot of rethinking/refactoring I settled with sort of a component based architecture (not strictly ECS, but it isn't inheritance based anymore either). So ...
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How do you actually access the data of individual components in an Entity-Component-System design? (C++)
I've been scouring information on Entity-Component-System designs for weeks to try to figure out how to implement it in C++, and there are lots of wonderful explanations for different aspects of it, ...
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Difference between MVC and ECS
Following reading Thomas Owens response (many thanks to him) on Is it reasonable to build applications (not games) using a component-entity-system architecture? and his explanation on what is ECS ...
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Isn't an Entity-Component System terrible for decoupling/information hiding?
The title is intentionally hyperbolic and it may just be my inexperience with the pattern but here's my reasoning:
The "usual" or arguably straightforward way of implementing entities is by ...
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How does one resolve low level types dependent on high level types?
I frequently come across this problem when developing games and simulations. As an example, I'm currently writing an implementation of chess. I'm using it as a vehicle to experiment with entity-...
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OOP ECS vs Pure ECS
Firstly, I am aware that this question links with the topic of game development but I have decided to ask it here since it really comes down to a more general software engeneering problem.
During the ...
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C#, Static classes and Inheritance
As a beginner I'll try to explain my problem as good as I can:
I'm currently trying to program a "simple" ECS. My basic idea is that I have a base "Entity class" which includes all sorts of functions ...
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A more data oriented design approach to Entity Component System
I'm creating my first c++ game engine project (for learning purposes) and in it I've attempted to implement an entity/component system utilizing some data oriented design principles while also not ...
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How to allow for custom Rules in a Entity Component System designed game engine?
So I've been doing a lot of research into game engines, and Entity Component System (ECS) seems to be the most flexible and extendable design to use.
Just to summarize, in ECS the basic idea is that ...
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Bottleneck performance in ECS
I've been looking into building an entity-component-system. Basically, an entity is just an id wrapped around a struct, components are data belonging to that entity(and reference said id), and systems ...
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Generalization of phase based systems for card and board games
In an exercise of futility I'm trying to abstract and generalize a framework where to build any turn/rule based system. I've had a head start but after decompiling HearthStone I'm second-guessing that ...
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Entity Component System Coupling
Lately I've been working on a small personal project which is basically an Entity Component System framework with autoupdated Systems.
While I have a pretty good idea on the way the framework should ...
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Implementing state-driven agents within an Entity-Component-System approach
A state-driven agent is an agent that performs an action based on its current state. The logic can be implemented through the use of a D-FSM that changes state depending on the Agent's "perception" ...
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Is the Entity Component System architecture object oriented by definition?
Is the Entity Component System architecture object oriented, by definition? It seems more procedural or functional to me. My opinion is that it doesn't prevent you from implementing it in an OO ...
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How to avoid "managers" in my code
I'm currently re-designing my Entity System, for C++, and I have a lot of Managers. In my design, I have these classes, in order to tie my library together. I've heard a lot of bad things when it ...
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Entity-Component-System architecture: interaction between systems
I am studying the Entity-Component-System architecture philosophy. As I have read about it, a typical entity system has:
1) Entities - which are merely ID tags which have a number of components
2) ...
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