Fix bee targeting fail across wrap world edge
Previously, the bee always aimed for the light area, no matter where you actually put the target. It also got confused whenever it flew across the wrap world edge.
How the bee works now:
1) The placed bee target is *not* recalculated when it was placed in the "gray" part of the wrap world edge. This allows for more fine-tuning.
1a) Place target in light area: bee aims for target light area
1b) Place target in gray area: bee aims for target, but flies to gray area first
2) Bee target is recalculated whenever bee passes the wrap world edge.
/*
** $Id: lzio.h,v 1.21.1.1 2007/12/27 13:02:25 roberto Exp $
** Buffered streams
** See Copyright Notice in lua.h
*/
#ifndef lzio_h
#define lzio_h
#include "lua.h"
#include "lmem.h"
#define EOZ (-1) /* end of stream */
typedef struct Zio ZIO;
#define char2int(c) cast(int, cast(unsigned char, (c)))
#define zgetc(z) (((z)->n--)>0 ? char2int(*(z)->p++) : luaZ_fill(z))
typedef struct Mbuffer {
char *buffer;
size_t n;
size_t buffsize;
} Mbuffer;
#define luaZ_initbuffer(L, buff) ((buff)->buffer = NULL, (buff)->buffsize = 0)
#define luaZ_buffer(buff) ((buff)->buffer)
#define luaZ_sizebuffer(buff) ((buff)->buffsize)
#define luaZ_bufflen(buff) ((buff)->n)
#define luaZ_resetbuffer(buff) ((buff)->n = 0)
#define luaZ_resizebuffer(L, buff, size) \
(luaM_reallocvector(L, (buff)->buffer, (buff)->buffsize, size, char), \
(buff)->buffsize = size)
#define luaZ_freebuffer(L, buff) luaZ_resizebuffer(L, buff, 0)
LUAI_FUNC char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n);
LUAI_FUNC void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader,
void *data);
LUAI_FUNC size_t luaZ_read (ZIO* z, void* b, size_t n); /* read next n bytes */
LUAI_FUNC int luaZ_lookahead (ZIO *z);
/* --------- Private Part ------------------ */
struct Zio {
size_t n; /* bytes still unread */
const char *p; /* current position in buffer */
lua_Reader reader;
void* data; /* additional data */
lua_State *L; /* Lua state (for reader) */
};
LUAI_FUNC int luaZ_fill (ZIO *z);
#endif