// 2. Define a system (logic) class MovementSystem : public artemis::EntityProcessingSystem { private: artemis::ComponentMapper<Position> posMapper; artemis::ComponentMapper<Velocity> velMapper;
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void processEntity(artemis::Entity &e) override { Position &pos = posMapper.get(e); Velocity &vel = velMapper.get(e); pos.x += vel.vx; pos.y += vel.vy; } }; Velocity &vel = velMapper.get(e)
// 3. In your main(): create world, entities, and run int main() { artemis::World world; world.setSystem(new MovementSystem()); world.initialize(); pos.x += vel.vx