https://github.com/simmsb/simple-ecs

A simple Entity Component System written in C
https://github.com/simmsb/simple-ecs

Last synced: 12 months ago
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A simple Entity Component System written in C

• Host: GitHub
• URL: https://github.com/simmsb/simple-ecs
• Owner: simmsb
• License: mit
• Created: 2019-05-19T04:33:31.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2019-06-01T06:11:25.000Z (about 7 years ago)
• Last Synced: 2025-04-22T00:03:18.231Z (about 1 year ago)
• Language: C
• Size: 23.4 KB
• Stars: 1
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: Readme.md
  • License: LICENSE

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README

          
 # Simple ECS

 This is a simple ECS framework for C

# Example

```c

#include 

#include 

#include "entity.h"

#include "component.h"

#include "system.h"

struct position_storage {

  int32_t x, y;

};

DEFINE_COMPONENT(position, struct position_storage);

REGISTER_COMPONENT(position, struct position_storage);

struct velocity_storage {

  int32_t dx, dy;

};

DEFINE_COMPONENT(velocity, struct velocity_storage);

REGISTER_COMPONENT(velocity, struct velocity_storage);

REGISTER_SYSTEM(update_velocity_values, {

  FOR_JOIN_COMPONENT_2(position, velocity, d, {

    d.position->x += d.velocity->dx;

    d.position->y += d.velocity->dy;

  });

});

int main() {

  uint32_t test_entity = new_entity_id();

  position.add_value(test_entity, (struct position_storage){.x = 0, .y = 0});

  velocity.add_value(test_entity, (struct velocity_storage){.dx = 1, .dy = 2});

  while (true) {

    run_systems();

  }

}

```