Free Hero Mesh

} Value;
#define UVALUE(x,y) ((Value){.u=x,.t=y})
#define SVALUE(x,y) ((Value){.s=x,.t=y})
#define NVALUE(x) SVALUE(x,TY_NUMBER)
#define CVALUE(x) UVALUE(x,TY_CLASS)
#define MVALUE(x) UVALUE(x,TY_MESSAGE)
#define ZVALUE(x) UVALUE(x,TY_STRING)
#define OVALUE(x) ((x)==VOIDLINK?NVALUE(0):UVALUE(x,objects[x]->generation))
#define ValueTo64(v) (((sqlite3_int64)((v).u))|(((sqlite3_int64)((v).t))<<32))

#define N_MESSAGES 24
extern const char*const standard_message_names[];
extern const char*const standard_sound_names[];
extern const char*const heromesh_key_names[256];

extern Uint32 firstobj,lastobj;
extern Uint32 playfield[64*64];
extern Uint8 pfwidth,pfheight;
extern Sint8 gameover,key_ignored;
extern Uint8 generation_number_inc;
extern Uint32 move_number;

const char*value_string_ptr(Value v);
void pfunlink(Uint32 n);
void pflink(Uint32 n);
Uint32 objalloc(Uint16 c);
void objtrash(Uint32 n);
void annihilate(void);
const char*execute_turn(int key);
const char*init_level(void);