fix: imbuement shrine and time guardian script errors

data-canary/scripts/actions/objects/imbuement_shrine.lua

@@ -5,7 +5,7 @@ function imbuement.onUse(player, item, fromPosition, target, toPosition, isHotke
 		return player:sendTextMessage(MESSAGE_EVENT_ADVANCE, "You did not collect enough knowledge from the ancient Shapers. Visit the Shaper temple in Montag for help.")
 	end
 
-	if not target or not (target:isItem()) then
+	if not target or type(target) ~= "userdata" or not target:isItem() then
 		return player:sendTextMessage(MESSAGE_EVENT_ADVANCE, "You can only use the shrine on an valid item.")
 	end
 

data-canary/scripts/actions/other/bed_modification_kits.lua

@@ -19,8 +19,12 @@ end
 local bedModificationKits = Action()
 
 function bedModificationKits.onUse(player, item, fromPosition, target, toPosition, isHotkey)
+	if not target or type(target) ~= "userdata" or not target:isItem() then
+		return false
+	end
+
 	local newBed = setting[item:getId()]
-	if not newBed or type(target) ~= "userdata" or not target:isItem() then
+	if not newBed then
 		return false
 	end
 

data-otservbr-global/scripts/actions/object/imbuement_shrine.lua

@@ -5,7 +5,7 @@ function imbuement.onUse(player, item, fromPosition, target, toPosition, isHotke
 		return player:sendTextMessage(MESSAGE_EVENT_ADVANCE, "You did not collect enough knowledge from the ancient Shapers. Visit the Shaper temple in Thais for help.")
 	end
 
-	if not target or not (target:isItem()) then
+	if type(target) ~= "userdata" or not target:isItem() then
 		return player:sendTextMessage(MESSAGE_EVENT_ADVANCE, "You can only use the shrine on an valid item.")
 	end
 

data-otservbr-global/scripts/lib/register_actions.lua

@@ -240,7 +240,7 @@ local function addFerumbrasAscendantReward(player, target, toPosition)
 end
 
 function onDestroyItem(player, item, fromPosition, target, toPosition, isHotkey)
-	if not target or target == nil or type(target) ~= "userdata" or not target:isItem() then
+	if not target or type(target) ~= "userdata" or not target:isItem() then
 		return false
 	end
 

data-otservbr-global/scripts/quests/cults_of_tibia/actions_analyser.lua

@@ -6,7 +6,7 @@ function cultsOfTibiaAnalyser.onUse(player, item, fromPosition, target, toPositi
 		return true
 	end
 
-	if not target:isItem() then
+	if not target or type(target) ~= "userdata" or not target:isItem() then
 		return false
 	end
 

data-otservbr-global/scripts/quests/cults_of_tibia/actions_counter_agent.lua

@@ -19,7 +19,7 @@ function cultsOfTibiaCounter.onUse(player, item, fromPosition, target, toPositio
 		return true
 	end
 
-	if not target:isItem() then
+	if not target or type(target) ~= "userdata" or not target:isItem() then
 		return false
 	end
 

data-otservbr-global/scripts/quests/cults_of_tibia/actions_magnifier.lua

@@ -7,7 +7,7 @@ function cultsOfTibiaMagnifier.onUse(player, item, fromPosition, target, toPosit
 		return true
 	end
 
-	if not target:isItem() then
+	if not target or type(target) ~= "userdata" or not target:isItem() then
 		return false
 	end
 

data-otservbr-global/scripts/quests/dangerous_depth/actions_gnomish_pesticide.lua

@@ -4,7 +4,7 @@ function dangerousDepthPesticide.onUse(player, item, fromPosition, target, toPos
 		return true
 	end
 
-	if not (target or target:isItem()) then
+	if not target or type(target) ~= "userdata" or not target:isItem() then
 		return false
 	end
 

data-otservbr-global/scripts/quests/dangerous_depth/actions_using_crystals.lua

@@ -405,7 +405,7 @@ function dangerousDepthCrystals.onUse(player, item, fromPosition, target, toPosi
 		return true
 	end
 
-	if not target or not target.isItem or not target:isItem() then
+	if not target or type(target) ~= "userdata" or not target:isItem() then
 		return false
 	end
 

data-otservbr-global/scripts/quests/lower_roshamuul/actions_mixture.lua

@@ -5,7 +5,7 @@ local buckets = {
 
 local lowerRoshamuulMixtune = Action()
 function lowerRoshamuulMixtune.onUse(player, item, fromPosition, target, toPosition, isHotkey)
-	if (target == nil) or not target:isItem() then
+	if not target or type(target) ~= "userdata" or not target:isItem() then
 		return false
 	end
 

data-otservbr-global/scripts/quests/lower_roshamuul/actions_mortar.lua

@@ -1,6 +1,6 @@
 local lowerRoshamuulMortar = Action()
 function lowerRoshamuulMortar.onUse(player, item, fromPosition, target, toPosition, isHotkey)
-	if (target == nil) or not target:isItem() then
+	if not target or type(target) ~= "userdata" or not target:isItem() then
 		return false
 	end
 

data-otservbr-global/scripts/quests/lower_roshamuul/actions_trough.lua

@@ -1,6 +1,6 @@
 local lowerRoshamuulTrough = Action()
 function lowerRoshamuulTrough.onUse(player, item, fromPosition, target, toPosition, isHotkey)
-	if (target == nil) or not target:isItem() then
+	if not target or type(target) ~= "userdata" or not target:isItem() then
 		return false
 	end
 

data-otservbr-global/scripts/quests/primal_ordeal_quest/magma_bubble_fight.lua

@@ -208,7 +208,7 @@ function chargedFlameAction.onUse(player, item, fromPosition, target, toPosition
 	if not player then
 		return false
 	end
-	if not target or not target:isItem() then
+	if not target or type(target) ~= "userdata" or not target:isItem() then
 		return false
 	end
 	if target:getId() ~= config.cooledCrystalId then

data-otservbr-global/scripts/quests/spike_tasks/actions_fertilizer.lua

@@ -8,7 +8,7 @@ function spikeTasksFertilizer.onUse(player, item, fromPosition, target, toPositi
 		return false
 	end
 
-	if (target == nil) or not target:isItem() or (target:getId() ~= 19215) then
+	if not target or type(target) ~= "userdata" or not target:isItem() or (target:getId() ~= 19215) then
 		return false
 	end
 

data-otservbr-global/scripts/quests/spike_tasks/actions_lode_stone.lua

@@ -14,7 +14,7 @@ function spikeTasksStone.onUse(player, item, fromPosition, target, toPosition, i
 		return false
 	end
 
-	if (target == nil) or not target:isItem() or (target:getId() ~= 19217) then
+	if not target or type(target) ~= "userdata" or not target:isItem() or (target:getId() ~= 19217) then
 		return false
 	end
 

data-otservbr-global/scripts/quests/spike_tasks/actions_spirit_shovel.lua

@@ -12,7 +12,7 @@ function spikeTasksShovel.onUse(player, item, fromPosition, target, toPosition,
 		return player:sendCancelMessage(RETURNVALUE_NOTPOSSIBLE)
 	end
 
-	if (target == nil) or not target:isItem() or (target:getId() ~= 19211) then
+	if not target or type(target) ~= "userdata" or not target:isItem() or (target:getId() ~= 19211) then
 		return player:sendCancelMessage(RETURNVALUE_NOTPOSSIBLE)
 	end
 

data-otservbr-global/scripts/quests/spike_tasks/actions_tuning_fork.lua

@@ -4,7 +4,7 @@ function spikeTasksFork.onUse(player, item, fromPosition, target, toPosition, is
 		return player:sendCancelMessage(RETURNVALUE_NOTPOSSIBLE)
 	end
 
-	if (target == nil) or not target:isItem() or (target:getId() ~= 19208) then
+	if not target or type(target) ~= "userdata" or not target:isItem() or (target:getId() ~= 19208) then
 		return player:sendCancelMessage(RETURNVALUE_NOTPOSSIBLE)
 	end
 

data-otservbr-global/scripts/spells/monster/time_guardiann.lua

@@ -3,51 +3,94 @@ local monsters = {
 	[2] = { pos = Position(32815, 32664, 14) },
 }
 
-local function functionBack(position, oldpos)
-	local guardian = Tile(position):getTopCreature()
-	local bool, diference, health = false, 0, 0
-	local spectators, spectator = Game.getSpectators(Position(32813, 32664, 14), false, false, 15, 15, 15, 15)
-	for v = 1, #spectators do
-		spectator = spectators[v]
-		if spectator:getName():lower() == "the blazing time guardian" or spectator:getName():lower() == "the freezing time guardian" then
-			oldpos = spectator:getPosition()
-			bool = true
+local function functionBack(pos, oldPos)
+	local position = Position(pos)
+	if not position then
+		return
+	end
+
+	local tile = TIle(position)
+	if not tile then
+		return
+	end
+
+	local guardian = tile:getTopCreature()
+	if not guardian then
+		return
+	end
+
+	local haveGuardianMonster = false
+	local spectator1 = nil
+
+	local spectators1 = Game.getSpectators(Position(32813, 32664, 14), false, false, 15, 15, 15, 15)
+	for index = 1, #spectators1 do
+		spectator1 = spectators1[index]
+		if spectator1 then
+			if spectator1:isMonster() and spectator1:getName():lower() == "the blazing time guardian" or spectator1:getName():lower() == "the freezing time guardian" then
+				oldPos = spectator1:getPosition()
+				haveGuardianMonster = true
+			end
 		end
 	end
-	if not bool then
+
+	if not haveGuardianMonster then
 		guardian:remove()
 		return true
 	end
-	local specs, spec = Game.getSpectators(Position(32813, 32664, 14), false, false, 15, 15, 15, 15)
-	for i = 1, #specs do
-		spec = specs[i]
-		if spec:isMonster() and spec:getName():lower() == "the blazing time guardian" or spec:getName():lower() == "the freezing time guardian" then
-			spec:teleportTo(position)
-			health = spec:getHealth()
-			diference = guardian:getHealth() - health
+
+	local diference = 0
+	local spectator = nil
+
+	local spectators2, spectator2 = Game.getSpectators(Position(32813, 32664, 14), false, false, 15, 15, 15, 15)
+	for i = 1, #spectators2 do
+		spectator2 = spectators2[i]
+		if spectator2 then
+			if spectator2:isMonster() and spectator2:getName():lower() == "the blazing time guardian" or spectator2:getName():lower() == "the freezing time guardian" then
+				spectator2:teleportTo(position)
+				diference = guardian:getHealth() - spectator2:getHealth()
+			end
 		end
 	end
-	guardian:addHealth(-diference)
-	guardian:teleportTo(oldpos)
+
+	if diference > 0 then
+		guardian:addHealth(-diference)
+	end
+
+	guardian:teleportTo(oldPos)
 end
 
 local spell = Spell("instant")
 
 function spell.onCastSpell(creature, var)
-	local index = math.random(1, 2)
 	local monsterPos = creature:getPosition()
 	if monsterPos.z ~= 14 then
 		return true
 	end
+
+	local index = math.random(1, 2)
 	local position = monsters[index].pos
-	local form = Tile(position):getTopCreature()
-	creature:teleportTo(position)
-	local diference, health = 0, 0
-	health = creature:getHealth()
-	diference = form:getHealth() - health
-	form:addHealth(-diference)
-	form:teleportTo(monsterPos)
-	addEvent(functionBack, 30 * 1000, position, monsterPos)
+	if position then
+		local tile = TIle(position)
+		if not tile then
+			return true
+		end
+
+		local form = tile:getTopCreature()
+		if not form then
+			return true
+		end
+
+		creature:teleportTo(position)
+
+		local diference = form:getHealth() - creature:getHealth()
+		if diference and diference > 0 then
+			form:addHealth(-diference)
+		end
+
+		form:teleportTo(monsterPos)
+		addEvent(functionBack, 30 * 1000, position, monsterPos)
+	end
+
 	return true
 end
 

data/scripts/actions/items/exercise_training_weapons.lua

@@ -133,7 +133,7 @@ end
 local exerciseTraining = Action()
 
 function exerciseTraining.onUse(player, item, fromPosition, target, toPosition, isHotkey)
-	if not target or type(target) == "table" or not target:getId() then
+	if not target or type(target) ~= "userdata" or not target:isItem() then
 		return true
 	end