step.h

void c_step(CCpr *env) {

  memset(env->rewards, 0, env->num_agents * sizeof(float));
  memset(env->interactive_food_agent_count, 0,
         (env->width * env->height + 7) / 8);

  for (int i = 0; i < env->num_agents; i++) {
    step_agent(env, i);
  }

  spawn_foods(env);

  compute_observations(env);
}