src/mainmenumanager.h


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124

/*
Minetest-c55
Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#ifndef MAINMENUMANAGER_HEADER
#define MAINMENUMANAGER_HEADER

/*
	All kinds of stuff that needs to be exposed from main.cpp
*/
#include "debug.h" // assert
#include "modalMenu.h"
#include "guiPauseMenu.h" //For IGameCallback

extern gui::IGUIEnvironment* guienv;
extern gui::IGUIStaticText *guiroot;

// Handler for the modal menus

class MainMenuManager : public IMenuManager
{
public:
	virtual void createdMenu(GUIModalMenu *menu)
	{
		for(core::list<GUIModalMenu*>::Iterator
				i = m_stack.begin();
				i != m_stack.end(); i++)
		{
			assert(*i != menu);
		}

		if(m_stack.size() != 0)
			(*m_stack.getLast())->setVisible(false);
		m_stack.push_back(menu);
	}

	virtual void deletingMenu(GUIModalMenu *menu)
	{
		// Remove all entries if there are duplicates
		bool removed_entry;
		do{
			removed_entry = false;
			for(core::list<GUIModalMenu*>::Iterator
					i = m_stack.begin();
					i != m_stack.end(); i++)
			{
				if(*i == menu)
				{
					m_stack.erase(i);
					removed_entry = true;
					break;
				}
			}
		}while(removed_entry);

		/*core::list<GUIModalMenu*>::Iterator i = m_stack.getLast();
		assert(*i == menu);
		m_stack.erase(i);*/
		
		if(m_stack.size() != 0)
			(*m_stack.getLast())->setVisible(true);
	}

	u32 menuCount()
	{
		return m_stack.size();
	}

	core::list<GUIModalMenu*> m_stack;
};

extern MainMenuManager g_menumgr;

extern bool noMenuActive();

class MainGameCallback : public IGameCallback
{
public:
	MainGameCallback(IrrlichtDevice *a_device):
		disconnect_requested(false),
		changepassword_requested(false),
		device(a_device)
	{
	}

	virtual void exitToOS()
	{
		device->closeDevice();
	}

	virtual void disconnect()
	{
		disconnect_requested = true;
	}

	virtual void changePassword()
	{
		changepassword_requested = true;
	}

	bool disconnect_requested;
	bool changepassword_requested;
	IrrlichtDevice *device;
};

extern MainGameCallback *g_gamecallback;

#endif
/*
** $Id: lbaselib.c,v 1.191.1.6 2008/02/14 16:46:22 roberto Exp $
** Basic library
** See Copyright Notice in lua.h
*/


#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define lbaselib_c
#define LUA_LIB

#include "lua.h"

#include "lauxlib.h"
#include "lualib.h"


/*
** If your system does not support `stdout', you can just remove this function.
** If you need, you can define your own `print' function, following this
** model but changing `fputs' to put the strings at a proper place
** (a console window or a log file, for instance).
*/
static int luaB_print (lua_State *L) {
  int n = lua_gettop(L);  /* number of arguments */
  int i;
  lua_getglobal(L, "tostring");
  for (i=1; i<=n; i++) {
    const char *s;
    lua_pushvalue(L, -1);  /* function to be called */
    lua_pushvalue(L, i);   /* value to print */
    lua_call(L, 1, 1);
    s = lua_tostring(L, -1);  /* get result */
    if (s == NULL)
      return luaL_error(L, LUA_QL("tostring") " must return a string to "
                           LUA_QL("print"));
    if (i>1) fputs("\t", stdout);
    fputs(s, stdout);
    lua_pop(L, 1);  /* pop result */
  }
  fputs("\n", stdout);
  return 0;
}


static int luaB_tonumber (lua_State *L) {
  int base = luaL_optint(L, 2, 10);
  if (base == 10) {  /* standard conversion */
    luaL_checkany(L, 1);
    if (lua_isnumber(L, 1)) {
      lua_pushnumber(L, lua_tonumber(L, 1));
      return 1;
    }
  }
  else {
    const char *s1 = luaL_checkstring(L, 1);
    char *s2;
    unsigned long n;
    luaL_argcheck(L, 2 <= base && base <= 36, 2, "base out of range");
    n = strtoul(s1, &s2, base);
    if (s1 != s2) {  /* at least one valid digit? */
      while (isspace((unsigned char)(*s2))) s2++;  /* skip trailing spaces */
      if (*s2 == '\0') {  /* no invalid trailing characters? */
        lua_pushnumber(L, (lua_Number)n);
        return 1;
      }
    }
  }
  lua_pushnil(L);  /* else not a number */
  return 1;
}


static int luaB_error (lua_State *L) {
  int level = luaL_optint(L, 2, 1);
  lua_settop(L, 1);
  if (lua_isstring(L, 1) && level > 0) {  /* add extra information? */
    luaL_where(L, level);
    lua_pushvalue(L, 1);
    lua_concat(L, 2);
  }
  return lua_error(L);
}


static int luaB_getmetatable (lua_State *L) {
  luaL_checkany(L, 1);
  if (!lua_getmetatable(L, 1)) {
    lua_pushnil(L);
    return 1;  /* no metatable */
  }
  luaL_getmetafield(L, 1, "__metatable");
  return 1;  /* returns either __metatable field (if present) or metatable */
}


static int luaB_setmetatable (lua_State *L) {
  int t = lua_type(L, 2);
  luaL_checktype(L, 1, LUA_TTABLE);
  luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2,
                    "nil or table expected");
  if (luaL_getmetafield(L, 1, "__metatable"))
    luaL_error(L, "cannot change a protected metatable");
  lua_settop(L, 2);
  lua_setmetatable(L, 1);
  return 1;
}


static void getfunc (lua_State *L, int opt) {
  if (lua_isfunction(L, 1)) lua_pushvalue(L, 1);
  else {
    lua_Debug ar;
    int level = opt ? luaL_optint(L, 1, 1) : luaL_checkint(L, 1);
    luaL_argcheck(L, level >= 0, 1, "level must be non-negative");
    if (lua_getstack(L, level, &ar) == 0)
      luaL_argerror(L, 1, "invalid level");
    lua_getinfo(L, "f", &ar);
    if (lua_isnil(L, -1))
      luaL_error(L, "no function environment for tail call at level %d",
                    level);
  }
}


static int luaB_getfenv (lua_State *L) {
  getfunc(L, 1);
  if (lua_iscfunction(L, -1))  /* is a C function? */
    lua_pushvalue(L, LUA_GLOBALSINDEX);  /* return the thread's global env. */
  else
    lua_getfenv(L, -1);
  return 1;
}


static int luaB_setfenv (lua_State *L) {
  luaL_checktype(L, 2, LUA_TTABLE);
  getfunc(L, 0);
  lua_pushvalue(L, 2);
  if (lua_isnumber(L, 1) && lua_tonumber(L, 1) == 0) {
    /* change environment of current thread */
    lua_pushthread(L);
    lua_insert(L, -2);
    lua_setfenv(L, -2);
    return 0;
  }
  else if (lua_iscfunction(L, -2) || lua_setfenv(L, -2) == 0)
    luaL_error(L,
          LUA_QL("setfenv") " cannot change environment of given object");
  return 1;
}


static int luaB_rawequal (lua_State *L) {
  luaL_checkany(L, 1);
  luaL_checkany(L, 2);
  lua_pushboolean(L, lua_rawequal(L, 1, 2));
  return 1;
}


static int luaB_rawget (lua_State *L) {
  luaL_checktype(L, 1, LUA_TTABLE);
  luaL_checkany(L, 2);
  lua_settop(L, 2);
  lua_rawget(L, 1);
  return 1;
}

static int luaB_rawset (lua_State *L) {
  luaL_checktype(L, 1, LUA_TTABLE);
  luaL_checkany(L, 2);
  luaL_checkany(L, 3);
  lua_settop(L, 3);
  lua_rawset(L, 1);
  return 1;
}


static int luaB_gcinfo (lua_State *L) {
  lua_pushinteger(L, lua_getgccount(L));
  return 1;
}


static int luaB_collectgarbage (lua_State *L) {
  static const char *const opts[] = {"stop", "restart", "collect",
    "count", "step", "setpause", "setstepmul", NULL};
  static const int optsnum[] = {LUA_GCSTOP, LUA_GCRESTART, LUA_GCCOLLECT,
    LUA_GCCOUNT, LUA_GCSTEP, LUA_GCSETPAUSE, LUA_GCSETSTEPMUL};
  int o = luaL_checkoption(L, 1, "collect", opts);
  int ex = luaL_optint(L, 2, 0);
  int res = lua_gc(L, optsnum[o], ex);
  switch (optsnum[o]) {
    case LUA_GCCOUNT: {
      int b = lua_gc(L, LUA_GCCOUNTB, 0);
      lua_pushnumber(L, res + ((lua_Number)b/1024));
      return 1;
    }
    case LUA_GCSTEP: {
      lua_pushboolean(L, res);
      return 1;
    }
    default: {
      lua_pushnumber(L, res);
      return 1;
    }
  }
}


static int luaB_type (lua_State *L) {
  luaL_checkany(L, 1);
  lua_pushstring(L, luaL_typename(L, 1));
  return 1;
}


static int luaB_next (lua_State *L) {
  luaL_checktype(L, 1, LUA_TTABLE);
  lua_settop(L, 2);  /* create a 2nd argument if there isn't one */
  if (lua_next(L, 1))
    return 2;
  else {
    lua_pushnil(L);
    return 1;
  }
}


static int luaB_pairs (lua_State *L) {
  luaL_checktype(L, 1, LUA_TTABLE);
  lua_pushvalue(L, lua_upvalueindex(1));  /* return generator, */
  lua_pushvalue(L, 1);  /* state, */
  lua_pushnil(L);  /* and initial value */
  return 3;
}


static int ipairsaux (lua_State *L) {
  int i = luaL_checkint(L, 2);
  luaL_checktype(L, 1, LUA_TTABLE);
  i++;  /* next value */
  lua_pushinteger(L, i);
  lua_rawgeti(L, 1, i);
  return (lua_isnil(L, -1)) ? 0 : 2;
}


static int luaB_ipairs (lua_State *L) {
  luaL_checktype(L, 1, LUA_TTABLE);
  lua_pushvalue(L, lua_upvalueindex(1));  /* return generator, */
  lua_pushvalue(L, 1);  /* state, */
  lua_pushinteger(L, 0);  /* and initial value */
  return 3;
}


static int load_aux (lua_State *L, int status) {
  if (status == 0)  /* OK? */
    return 1;
  else {
    lua_pushnil(L);
    lua_insert(L, -2);  /* put before error message */
    return 2;  /* return nil plus error message */
  }
}


static int luaB_loadstring (lua_State *L) {
  size_t l;
  const char *s = luaL_checklstring(L, 1, &l);
  const char *chunkname = luaL_optstring(L, 2, s);
  return load_aux(L, luaL_loadbuffer(L, s, l, chunkname));
}


static int luaB_loadfile (lua_State *L) {
  const char *fname = luaL_optstring(L, 1, NULL);
  return load_aux(L, luaL_loadfile(L, fname));
}


/*
** Reader for generic `load' function: `lua_load' uses the
** stack for internal stuff, so the reader cannot change the
** stack top. Instead, it keeps its resulting string in a
** reserved slot inside the stack.
*/
static const char *generic_reader (lua_State *L, void *ud, size_t *size) {
  (void)ud;  /* to avoid warnings */
  luaL_checkstack(L, 2, "too many nested functions");
  lua_pushvalue(L, 1);  /* get function */
  lua_call(L, 0, 1);  /* call it */
  if (lua_isnil(L, -1)) {
    *size = 0;
    return NULL;
  }
  else if (lua_isstring(L, -1)) {
    lua_replace(L, 3);  /* save string in a reserved stack slot */
    return lua_tolstring(L, 3, size);
  }
  else luaL_error(L, "reader function must return a string");
  return NULL;  /* to avoid warnings */
}


static int luaB_load (lua_State *L) {
  int status;
  const char *cname = luaL_optstring(L, 2, "=(load)");
  luaL_checktype(L, 1, LUA_TFUNCTION);
  lua_settop(L, 3);  /* function, eventual name, plus one reserved slot */
  status = lua_load(L, generic_reader, NULL, cname);
  return load_aux(L, status);
}


static int luaB_dofile (lua_State *L) {
  const char *fname = luaL_optstring(L, 1, NULL);
  int n = lua_gettop(L);
  if (luaL_loadfile(L, fname) != 0) lua_error(L);
  lua_call(L, 0, LUA_MULTRET);
  return lua_gettop(L) - n;
}


static int luaB_assert (lua_State *L) {
  luaL_checkany(L, 1);
  if (!lua_toboolean(L, 1))
    return luaL_error(L, "%s", luaL_optstring(L, 2, "assertion failed!"));
  return lua_gettop(L);
}


static int luaB_unpack (lua_State *L) {
  int i, e, n;
  luaL_checktype(L, 1, LUA_TTABLE);
  i = luaL_optint(L, 2, 1);
  e = luaL_opt(L, luaL_checkint, 3, luaL_getn(L, 1));
  if (i > e) return 0;  /* empty range */
  n = e - i + 1;  /* number of elements */
  if (n <= 0 || !lua_checkstack(L, n))  /* n <= 0 means arith. overflow */
    return luaL_error(L, "too many results to unpack");
  lua_rawgeti(L, 1, i);  /* push arg[i] (avoiding overflow problems) */
  while (i++ < e)  /* push arg[i + 1...e] */
    lua_rawgeti(L, 1, i);
  return n;
}


static int luaB_select (lua_State *L) {
  int n = lua_gettop(L);
  if (lua_type(L, 1) == LUA_TSTRING && *lua_tostring(L, 1) == '#') {
    lua_pushinteger(L, n-1);
    return 1;