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n71' href='#n71'>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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 
/*
Minetest
Copyright (C) 2013 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.
*/

#include "lua_api/l_nodetimer.h"
#include "lua_api/l_internal.h"
#include "serverenvironment.h"
#include "map.h"


int NodeTimerRef::gc_object(lua_State *L) {
	NodeTimerRef *o = *(NodeTimerRef **)(lua_touserdata(L, 1));
	delete o;
	return 0;
}

NodeTimerRef* NodeTimerRef::checkobject(lua_State *L, int narg)
{
	luaL_checktype(L, narg, LUA_TUSERDATA);
	void *ud = luaL_checkudata(L, narg, className);
	if(!ud) luaL_typerror(L, narg, className);
	return *(NodeTimerRef**)ud;  // unbox pointer
}

int NodeTimerRef::l_set(lua_State *L)
{
	MAP_LOCK_REQUIRED;
	NodeTimerRef *o = checkobject(L, 1);
	ServerEnvironment *env = o->m_env;
	if(env == NULL) return 0;
	f32 t = luaL_checknumber(L,2);
	f32 e = luaL_checknumber(L,3);
	env->getMap().setNodeTimer(NodeTimer(t, e, o->m_p));
	return 0;
}

int NodeTimerRef::l_start(lua_State *L)
{
	MAP_LOCK_REQUIRED;
	NodeTimerRef *o = checkobject(L, 1);
	ServerEnvironment *env = o->m_env;
	if(env == NULL) return 0;
	f32 t = luaL_checknumber(L,2);
	env->getMap().setNodeTimer(NodeTimer(t, 0, o->m_p));
	return 0;
}

int NodeTimerRef::l_stop(lua_State *L)
{
	MAP_LOCK_REQUIRED;
	NodeTimerRef *o = checkobject(L, 1);
	ServerEnvironment *env = o->m_env;
	if(env == NULL) return 0;
	env->getMap().removeNodeTimer(o->m_p);
	return 0;
}

int NodeTimerRef::l_is_started(lua_State *L)
{
	MAP_LOCK_REQUIRED;
	NodeTimerRef *o = checkobject(L, 1);
	ServerEnvironment *env = o->m_env;
	if(env == NULL) return 0;

	NodeTimer t = env->getMap().getNodeTimer(o->m_p);
	lua_pushboolean(L,(t.timeout != 0));
	return 1;
}

int NodeTimerRef::l_get_timeout(lua_State *L)
{
	MAP_LOCK_REQUIRED;
	NodeTimerRef *o = checkobject(L, 1);
	ServerEnvironment *env = o->m_env;
	if(env == NULL) return 0;

	NodeTimer t = env->getMap().getNodeTimer(o->m_p);
	lua_pushnumber(L,t.timeout);
	return 1;
}

int NodeTimerRef::l_get_elapsed(lua_State *L)
{
	MAP_LOCK_REQUIRED;
	NodeTimerRef *o = checkobject(L, 1);
	ServerEnvironment *env = o->m_env;
	if(env == NULL) return 0;

	NodeTimer t = env->getMap().getNodeTimer(o->m_p);
	lua_pushnumber(L,t.elapsed);
	return 1;
}


NodeTimerRef::NodeTimerRef(v3s16 p, ServerEnvironment *env):
	m_p(p),
	m_env(env)
{
}

NodeTimerRef::~NodeTimerRef()
{
}

// Creates an NodeTimerRef and leaves it on top of stack
// Not callable from Lua; all references are created on the C side.
void NodeTimerRef::create(lua_State *L, v3s16 p, ServerEnvironment *env)
{
	NodeTimerRef *o = new NodeTimerRef(p, env);
	*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
	luaL_getmetatable(L, className);
	lua_setmetatable(L, -2);
}

void NodeTimerRef::set_null(lua_State *L)
{
	NodeTimerRef *o = checkobject(L, -1);
	o->m_env = NULL;
}

void NodeTimerRef::Register(lua_State *L)
{
	lua_newtable(L);
	int methodtable = lua_gettop(L);
	luaL_newmetatable(L, className);
	int metatable = lua_gettop(L);

	lua_pushliteral(L, "__metatable");
	lua_pushvalue(L, methodtable);
	lua_settable(L, metatable);  // hide metatable from Lua getmetatable()

	lua_pushliteral(L, "__index");
	lua_pushvalue(L, methodtable);
	lua_settable(L, metatable);