Questions tagged [entity-system]
A programming paradigm in which gameobjects (entities) are composed out of components, and are operated upon by systems. Each entity is an ID that points to specific components.
401 questions
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How to structure this concept in ECS?
High level At a high level, I'm looking to create a galaxy exploration-style game. A number of points of interest will be selectable on the map (I'd like to aim for several hundred, but flexible and ...
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Entity Framework and reactive
In my games using entity framework (for example using https://github.com/libgdx/ashley ) help me to separate data from logic in different systems. But a problem I've found is how to handle events ...
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3 votes
2 answers
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How do different compositions/types of entities interact in an ECS-system?
I have a working ECS-system set up, largely inspired by this brilliant article (not at all required reading to be able to answer my question) on https://indiegamedev.net/ showcasing an ECS-system with ...
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How to handle various collision effects within an Entity Component System?
Let's say we have three enemies, a bear trap, a fire trap, and a minotaur. When you walk over the bear trap, the game spawns an invisible entity that, upon the player colliding with it, slows the ...
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How do I contiguously store and iterate over ECS components in C++?
I'm writing an entity component system and want to store each type of component separately and contiguously in memory in a way that's easy to iterate over. Component...
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2 votes
2 answers
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How to Implement ECS Archetypes in C#?
I'm trying to figure out how to implement a simple ECS with an Archetype approach, similar to what Unity's ECS uses. An archetype is just a category for entities that have a specific set of components....
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1 answer
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Should abilities have their state and functionality separated?
I'm developing a top-down game using Javascript and Canvas in an ECS architecture. I'm wondering, which of these is better from a design / elegance point of view? Method 1: Combining the ability ...
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0 votes
1 answer
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Cannot decide between using a MessageBus and entities for events in my ECS game
For example, let's say that the player walks into an enemy and in response, a chain of events should occur (such as: his score goes up, the enemy dies, a cinematic starts, etc.) I see two "proper&...
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