Lua Spell - createitem

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Hello, I'm doing some custom spells and now I've hit a wall.

I'm trying to use this:

setCombatParam(combat, COMBAT_PARAM_CREATEITEM, 1988)

In a wave spell.

I'm also confused why when I use such a spell/rune item on the ground/myself, the item will spawn on the ground, but when I use the spell on a monster it will not, why?

Here's example of a firewave that i want to make a little custom by creating items on the areas that are hit:

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_FIREDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_HITBYFIRE)
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, CONST_ANI_FIRE)
setAttackFormula(combat, COMBAT_FORMULA_LEVELMAGIC, 5, 5, 1.2, 2)

local area = createCombatArea(AREA_WAVE4, AREADIAGONAL_WAVE4)
setCombatArea(combat, area)

function onCastSpell(cid, var)
	return doCombat(cid, combat, var)
end

Here's an example on my rune that I can shoot on myself to spawn and item, but not on a monster to spawn an item (the damage and all other effects plays when used on monster);
l

ocal combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TARGETCASTERORTOPMOST, true)
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_HOLYDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_HOLYDAMAGE)
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, CONST_ANI_HOLY)
setCombatParam(combat, COMBAT_PARAM_CREATEITEM, 1988)
setCombatFormula(combat, COMBAT_FORMULA_LEVELMAGIC, -1.5, -15, -2.5, -25)

function onCastSpell(cid, var)
	return doCombat(cid, combat, var)
end

I need support with why the item won't spawn on a monster, and I guess request on howto make area spell items (I remember I did this somehow with 8.0 xml server, but it has a different setup when reading spells)

Using TFS 3.6pl1

 

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I'd really apriciate if someone that knows about this can help me out a little here

 

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It has to do with the xml line

 

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 allowfaruse="1" charges="1" lvl="100" maglv="5" exhaustion="2000" needtarget="1" blocktype="solid" event="script" value="attack/tess.lua"/>

/\ The rune.

 words="tresa mortos" lvl="12" mana="25" prem="1" range="5" casterTargetOrDirection="1" blockwalls="1" exhaustion="1500" needlearn="0" event="script" value="attack/estestos.lua">

/\ the instant spell

Don't really know why it's possible to use on myself and spawn the item but not on a monster. As for the instant spell... No clue

 

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rune

 allowfaruse="1" charges="1" lvl="100" maglv="5" exhaustion="2000" blocktype="solid" event="script" value="attack/tess.lua"/>

as for the instant spell nothing inside that lua is creating an item

 

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this is the instant spell that is not spawning the item when targeted on monsters, but when shooting it out in the blue (in front of yourself) it spawns

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_FIREWORK_YELLOW)
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, CONST_ANI_HOLY)
setCombatParam(combat, COMBAT_PARAM_CREATEITEM, 2148)
setCombatFormula(combat, COMBAT_FORMULA_LEVELMAGIC, -1, -10, -1, -20, 5, 5, 1.4, 2.1)

function onCastSpell(cid, var)
	return doCombat(cid, combat, var)
end

Thank you for the help on the rune, it works as intended now!
However the instant spell is still a mystery