#ifndef _ATTRHASH_H_
#define _ATTRHASH_H_

/* This file is only for the client. */

enum attr_type {
  ATTR_PUBLIC_WORKER,
  ATTR_TILE_IMPROVEMENT		/* up to 256 */
};

void init_attrhash(void);
/* Returns pointer to value. Returns length in *len, unless len == NULL. */
const void *get_attrib(enum attr_type, int id, int *len);
/* Store attribute and send it to server. If len == 0, data is
   ignored. Otherwise it is copied. */
void set_attrib(enum attr_type, int id, int len, const void *data);
void del_attrib(enum attr_type, int id);
/* convenience */
inline void tile_set_attrib(enum attr_type, int x, int y, int len, const void *data) {
  
}

#endif