Lua Function Player can/can not use spells/runes

[VirrageS]

[LUA FUNCTION] Can/can not cast spell/runes​

Description:
This function set for player that can/can not use spells/runes.
Simple but usefull function.

Example:

spells.xml

	<instant name="Silence" words="silence" lvl="40" mana="500" range="5" needtarget="1" blockwalls="1" exhaustion="10000" needlearn="0" event="script" value="silence.lua">
		<vocation id="1"/>
		<vocation id="2"/>
		<vocation id="5"/>
		<vocation id="6"/>
	</instant>

silence.lua

local config = {
	silenceTime = 5000 -- in miliseconds
}

function onCastSpell(cid, var)
	local target = variantToNumber(var)

	doPlayerSetNoCastSpell(target, true) -- NEW function
	doSendMagicEffect(getThingPos(target), CONST_ME_MAGIC_BLUE)
	doSendAnimatedText(getThingPos(target), 'Silenced', COLOR_RED)
	doPlayerSendCancel(target, 'You can not use spells and runes for ' .. config.silenceTime / 1000 .. ' seconds.')

	addEvent(canCastSpell, config.silenceTime, target)
	return true
end

function canCastSpell(cid)
	if isPlayer(cid) then
		doPlayerSetNoCastSpell(cid, false) -- NEW function
	end
end

Warning:
If you don't know what you are doing, don't change anything and just leave from this theard.

Test:
I tested it on TFS 0.4 trunk 3884 (it should work on better versions).




Edit:


spells.cpp

Below:
[cpp]
bool Spell::checkSpell(Player* player) const
{
if(player->hasFlag(PlayerFlag_CannotUseSpells))
return false;
[/cpp]

Paste:
[cpp]
if(player->getNoCastSpell())
return false;
[/cpp]



Below:
[cpp]
bool InstantSpell::canCast(const Player* player) const
{
if(player->hasFlag(PlayerFlag_CannotUseSpells))
return false;
[/cpp]

Paste:
[cpp]
if(player->getNoCastSpell())
return false;
[/cpp]



Below:
[cpp]
ReturnValue RuneSpell::canExecuteAction(const Player* player, const Position& toPos)
{
if(player->hasFlag(PlayerFlag_CannotUseSpells))
return RET_CANNOTUSETHISOBJECT;
[/cpp]

Paste:
[cpp]
if(player->getNoCastSpell())
return RET_CANNOTUSETHISOBJECT;
[/cpp]


luascript.cpp

Below:
[cpp]
void LuaInterface::registerFunctions()
{
//example(...)
//lua_register(L, "name", C_function);
[/cpp]

Paste:
[cpp]
//doPlayerSetNoCastSpell(cid, block)
lua_register(m_luaState, "doPlayerSetNoCastSpell", LuaInterface::luaDoPlayerSetNoCastSpell);

//getPlayerNoCastSpell(cid)
lua_register(m_luaState, "getPlayerNoCastSpell", LuaInterface::luaGetPlayerNoCastSpell);
[/cpp]



Below:
[cpp]
int32_t LuaInterface::luaGetPlayerTradeState(lua_State* L)
{
return internalGetPlayerInfo(L, PlayerInfoTradeState);
}
[/cpp]

Paste:
[cpp]
int32_t LuaInterface::luaDoPlayerSetNoCastSpell(lua_State* L)
{
//doPlayerSetNoCastSpell(cid, block)
bool block = popNumber(L);

ScriptEnviroment* env = getEnv();
if(Player* player = env->getPlayerByUID(popNumber(L)))
{
player->setNoCastSpell(block);
lua_pushboolean(L, true);
}
else
{
errorEx(getError(LUA_ERROR_PLAYER_NOT_FOUND));
lua_pushboolean(L, false);
}

return 1;
}

int32_t LuaInterface::luaGetPlayerNoCastSpell(lua_State* L)
{
//getPlayerNoCastSpell(cid)
ScriptEnviroment* env = getEnv();
if(Player* player = env->getPlayerByUID(popNumber(L)))
lua_pushboolean(L, player->getNoCastSpell());
else
{
errorEx(getError(LUA_ERROR_PLAYER_NOT_FOUND));
lua_pushboolean(L, false);
}

return 1;
}
[/cpp]


luascript.h

Below:
[cpp]
//lua functions
[/cpp]

Paste:
[cpp]
static int32_t luaDoPlayerSetNoCastSpell(lua_State* L);
static int32_t luaGetPlayerNoCastSpell(lua_State* L);
[/cpp]


player.cpp

Below:
[cpp]
bool Player::hasLearnedInstantSpell(const std::string& name) const
{
if(hasFlag(PlayerFlag_CannotUseSpells))
return false;
[/cpp]

Paste:
[cpp]
if(getNoCastSpell())
return false;
[/cpp]



Below:
[cpp]
pzLocked = isConnecting = addAttackSkillPoint = requestedOutfit = false;
saving = true;
[/cpp]

Paste:
[cpp]
cannotCastSpell = false;
[/cpp]


player.h

Below:
[cpp]
//combat functions
[/cpp]

Paste:
[cpp]
void setNoCastSpell(bool _cannotCastSpell)
{
cannotCastSpell = _cannotCastSpell;
}
bool getNoCastSpell() const {return cannotCastSpell;}
[/cpp]



Below:
[cpp]
bool outfitAttributes;
bool addAttackSkillPoint;
[/cpp]

Paste:
[cpp]
bool cannotCastSpell;
[/cpp]

 

[Exedion]

i think this can be done in pure lua, but thanks anyway

 

[zakius]

@up: yeah, by muting player or adding storage check in every spell

condition would be even better, no need to addEvent

 

[VirrageS]

i think this can be done in pure lua, but thanks anyway

Yes of course. It can be done in onCast event and return false. But I think it is more easier to use it on function, because no need to make a new event and check storages always when you want to make a simple spell or other script.

 

[Erikas Kontenis]

this idea me take to lineage2