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TFS 1.X+ Check if item is equiped on player to cast spells

A

Allan Silva

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May 30, 2018
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Hi
I'm trying to put a function to check if the player is using an item, if it is positive, the player can use the ability, otherwise the player can't use the spell, since only players with the equipped item can release the spell.

Lua: 
local weapons = {
        {itemId = 2321}, -- giant smithhammer
        }
      
function onStepIn(cid, item, position, fromPosition)
    if getPlayerItemCount(cid, weapons.itemId) >= count then
    addEvent(onCastSpell, 100, var)
    end
end


local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_HITAREA)
combat:setParameter(COMBAT_PARAM_BLOCKARMOR, 1)
combat:setParameter(COMBAT_PARAM_USECHARGES, 1)
combat:setArea(createCombatArea(AREA_SQUARE1X1))

function onGetFormulaValues(player, skill, attack, factor)
    local level = player:getLevel()
  
    local min = (level / 5) + (skill + attack) * 0.5
    local max = (level / 5) + (skill + attack) * 1.5

    return -min * 1.1, -max * 1.1 -- TODO : Use New Real Formula instead of an %
end

combat:setCallback(CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues")

function onCastSpell(creature, var)
    return combat:execute(creature, var)
end


Anyone know how to change the script and perform this check? I'm using TFS 1.3
Thanks!
 
Last edited:
Solution
Snavy
Here you go. Tested.
Lua: 
local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_HITAREA)
combat:setParameter(COMBAT_PARAM_BLOCKARMOR, 1)
combat:setParameter(COMBAT_PARAM_USECHARGES, 1)
combat:setArea(createCombatArea(AREA_SQUARE1X1))

function onGetFormulaValues(player, skill, attack, factor)
    local level = player:getLevel()
    local min = (level / 5) + (skill + attack) * 0.5
    local max = (level / 5) + (skill + attack) * 1.5
    return -min * 1.1, -max * 1.1 -- TODO : Use New Real Formula instead of an %
end

combat:setCallback(CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues")
function onCastSpell(creature, var)
    local weapons = {
        2321...
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Try:
Lua: 
local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_HITAREA)
combat:setParameter(COMBAT_PARAM_BLOCKARMOR, 1)
combat:setParameter(COMBAT_PARAM_USECHARGES, 1)
combat:setArea(createCombatArea(AREA_SQUARE1X1))

function onGetFormulaValues(player, skill, attack, factor)
    local level = player:getLevel()
    local min = (level / 5) + (skill + attack) * 0.5
    local max = (level / 5) + (skill + attack) * 1.5
    return -min * 1.1, -max * 1.1 -- TODO : Use New Real Formula instead of an %
end

combat:setCallback(CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues")

function onCastSpell(creature, var)
    local weapons = {
        2321, -- giant smithhammer
    }

    local playerWeapon = getPlayerWeapon(cid)
    if playerWeapon and table.find(weapons, playerWeapon.itemid) ~= nil then
        return combat:execute(creature, var)
    end

    doPlayerSendCancel(cid, "You need a special weapon to execute this spell.")
    return false
end
 
Upvote 0 Downvote
Snavy said:
Try:
Lua: 
local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_HITAREA)
combat:setParameter(COMBAT_PARAM_BLOCKARMOR, 1)
combat:setParameter(COMBAT_PARAM_USECHARGES, 1)
combat:setArea(createCombatArea(AREA_SQUARE1X1))

function onGetFormulaValues(player, skill, attack, factor)
    local level = player:getLevel()
    local min = (level / 5) + (skill + attack) * 0.5
    local max = (level / 5) + (skill + attack) * 1.5
    return -min * 1.1, -max * 1.1 -- TODO : Use New Real Formula instead of an %
end

combat:setCallback(CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues")

function onCastSpell(creature, var)
    local weapons = {
        2321, -- giant smithhammer
    }

    local playerWeapon = getPlayerWeapon(cid)
    if playerWeapon and table.find(weapons, playerWeapon.itemid) ~= nil then
        return combat:execute(creature, var)
    end

    doPlayerSendCancel(cid, "You need a special weapon to execute this spell.")
    return false
end
Click to expand...


Lua: 
data/spells/scripts/custom/teste.lua:onCastSpell
data/spells/scripts/custom/teste.lua:22: attempt to call global 'getPlayerWeapon' (a nil value)
 
Upvote 0 Downvote
Allan Silva said:
Lua: 
data/spells/scripts/custom/teste.lua:onCastSpell
data/spells/scripts/custom/teste.lua:22: attempt to call global 'getPlayerWeapon' (a nil value)
Click to expand...
Lua: 
local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_HITAREA)
combat:setParameter(COMBAT_PARAM_BLOCKARMOR, 1)
combat:setParameter(COMBAT_PARAM_USECHARGES, 1)
combat:setArea(createCombatArea(AREA_SQUARE1X1))

function onGetFormulaValues(player, skill, attack, factor)
    local level = player:getLevel()
    local min = (level / 5) + (skill + attack) * 0.5
    local max = (level / 5) + (skill + attack) * 1.5
    return -min * 1.1, -max * 1.1 -- TODO : Use New Real Formula instead of an %
end

combat:setCallback(CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues")
function onCastSpell(creature, var)
    local weapons = {
        2321, -- giant smithhammer
    }

    for slot = CONST_SLOT_RIGHT, CONST_SLOT_LEFT do 
        local playerWeapon = creature:getSlotItem(slot)
        if playerWeapon and table.contains(weapons, playerWeapon) then
            return combat:execute(creature, var)
        end
    end

    doPlayerSendCancel(cid, "You need a special weapon to execute this spell.")
    return false
end
 
Upvote 0 Downvote
Snavy said:
Lua: 
local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_HITAREA)
combat:setParameter(COMBAT_PARAM_BLOCKARMOR, 1)
combat:setParameter(COMBAT_PARAM_USECHARGES, 1)
combat:setArea(createCombatArea(AREA_SQUARE1X1))

function onGetFormulaValues(player, skill, attack, factor)
    local level = player:getLevel()
    local min = (level / 5) + (skill + attack) * 0.5
    local max = (level / 5) + (skill + attack) * 1.5
    return -min * 1.1, -max * 1.1 -- TODO : Use New Real Formula instead of an %
end

combat:setCallback(CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues")
function onCastSpell(creature, var)
    local weapons = {
        2321, -- giant smithhammer
    }

    for slot = CONST_SLOT_RIGHT, CONST_SLOT_LEFT do
        local playerWeapon = creature:getSlotItem(slot)
        if playerWeapon and table.contains(weapons, playerWeapon) then
            return combat:execute(creature, var)
        end
    end

    doPlayerSendCancel(cid, "You need a special weapon to execute this spell.")
    return false
end
Click to expand...

Without erros in console, spells dont work.. Do you believe it is possible to do this check to use spells? I haven't seen anything like it in forum posts. Thanks to try help me XD
 
Upvote 0 Downvote
Here you go. Tested.
Lua: 
local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_HITAREA)
combat:setParameter(COMBAT_PARAM_BLOCKARMOR, 1)
combat:setParameter(COMBAT_PARAM_USECHARGES, 1)
combat:setArea(createCombatArea(AREA_SQUARE1X1))

function onGetFormulaValues(player, skill, attack, factor)
    local level = player:getLevel()
    local min = (level / 5) + (skill + attack) * 0.5
    local max = (level / 5) + (skill + attack) * 1.5
    return -min * 1.1, -max * 1.1 -- TODO : Use New Real Formula instead of an %
end

combat:setCallback(CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues")
function onCastSpell(creature, var)
    local weapons = {
        2321,
    }

    for slot = CONST_SLOT_RIGHT, CONST_SLOT_LEFT do
        local playerWeapon = creature:getSlotItem(slot)
        if playerWeapon and table.contains(weapons, playerWeapon:getId()) then
            return combat:execute(creature, var)
        end
    end

    creature:sendTextMessage(MESSAGE_STATUS_SMALL, "You need a special weapon to cast this spell.")
    return false
end

Allan Silva said:
Do you believe it is possible to do this check to use spells?
Click to expand...
Do you mean this same check for all spells?
 
Last edited by a moderator:
Upvote 0 Downvote
Solution
Snavy said:
Here you go. Tested.
Lua: 
local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_HITAREA)
combat:setParameter(COMBAT_PARAM_BLOCKARMOR, 1)
combat:setParameter(COMBAT_PARAM_USECHARGES, 1)
combat:setArea(createCombatArea(AREA_SQUARE1X1))

function onGetFormulaValues(player, skill, attack, factor)
    local level = player:getLevel()
    local min = (level / 5) + (skill + attack) * 0.5
    local max = (level / 5) + (skill + attack) * 1.5
    return -min * 1.1, -max * 1.1 -- TODO : Use New Real Formula instead of an %
end

combat:setCallback(CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues")
function onCastSpell(creature, var)
    local weapons = {
        2321,
    }

    for slot = CONST_SLOT_RIGHT, CONST_SLOT_LEFT do
        local playerWeapon = creature:getSlotItem(slot)
        if playerWeapon and table.contains(weapons, playerWeapon:getId()) then
            return combat:execute(creature, var)
        end
    end

    creature:sendTextMessage(MESSAGE_STATUS_SMALL, "You need a special weapon to cast this spell.")
    return false
end


Do you mean this same check for all spells?
Click to expand...

You really good, now the scripts working! thanks to help me XD
 
Upvote 0 Downvote

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