How to add melee splash damage?

[ascar]

ok, its working, i extrated your file with a website special link.........
function is 4 8

[ascar]

is it possible to modify the radius of splash with another item?
It seems impossible to put formulea in missile.txt... the only thing not numerical working is "lvl" but its not what i want (means lvl 90 you hit all the screen lol...)
I tried to put the splash stat on other item with different radius but its only working on weapons... maybe i just need to modify something in "item stat cost.txt" ?

[Spectrum]

is it possible to modify the radius of splash with another item?
It seems impossible to put formulea in missile.txt... the only thing not numerical working is "lvl" but its not what i want (means lvl 90 you hit all the screen lol...)
I tried to put the splash stat on other item with different radius but its only working on weapons... maybe i just need to modify something in "item stat cost.txt" ?

If you make any progress, please do let us know. I am working on a very similar problem here: How to add splash damage to melee and make it skill-dependent?

[Cypress]

Hi ascar and Spectrum, you can do that with Radial Splash.

skills.txt

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skill	Id	charclass	skilldesc	srvstfunc	srvdofunc	prgstack	srvprgfunc1	srvprgfunc2	srvprgfunc3	prgcalc1	prgcalc2	prgcalc3	prgdam	srvmissile	decquant	lob	srvmissilea	srvmissileb	srvmissilec	srvoverlay	aurafilter	aurastate	auratargetstate	auralencalc	aurarangecalc	aurastat1	aurastatcalc1	aurastat2	aurastatcalc2	aurastat3	aurastatcalc3	aurastat4	aurastatcalc4	aurastat5	aurastatcalc5	aurastat6	aurastatcalc6	auraevent1	auraeventfunc1	auraevent2	auraeventfunc2	auraevent3	auraeventfunc3	auratgtevent	auratgteventfunc	passivestate	passiveitype	passivestat1	passivecalc1	passivestat2	passivecalc2	passivestat3	passivecalc3	passivestat4	passivecalc4	passivestat5	passivecalc5	passiveevent	passiveeventfunc	summon	pettype	petmax	summode	sumskill1	sumsk1calc	sumskill2	sumsk2calc	sumskill3	sumsk3calc	sumskill4	sumsk4calc	sumskill5	sumsk5calc	sumumod	sumoverlay	stsuccessonly	stsound	stsoundclass	stsounddelay	weaponsnd	dosound	dosound a	dosound b	tgtoverlay	tgtsound	prgoverlay	prgsound	castoverlay	cltoverlaya	cltoverlayb	cltstfunc	cltdofunc	cltprgfunc1	cltprgfunc2	cltprgfunc3	cltmissile	cltmissilea	cltmissileb	cltmissilec	cltmissiled	cltcalc1	*cltcalc1 desc	cltcalc2	*cltcalc2 desc	cltcalc3	*cltcalc3 desc	warp	immediate	enhanceable	attackrank	noammo	range	weapsel	itypea1	itypea2	itypea3	etypea1	etypea2	itypeb1	itypeb2	itypeb3	etypeb1	etypeb2	anim	seqtrans	monanim	seqnum	seqinput	durability	UseAttackRate	LineOfSight	TargetableOnly	SearchEnemyXY	SearchEnemyNear	SearchOpenXY	SelectProc	TargetCorpse	TargetPet	TargetAlly	TargetItem	AttackNoMana	TgtPlaceCheck	ItemEffect	ItemCltEffect	ItemTgtDo	ItemTarget	ItemCheckStart	ItemCltCheckStart	ItemCastSound	ItemCastOverlay	skpoints	reqlevel	maxlvl	reqstr	reqdex	reqint	reqvit	reqskill1	reqskill2	reqskill3	restrict	State1	State2	State3	delay	leftskill	repeat	checkfunc	nocostinstate	usemanaondo	startmana	minmana	manashift	mana	lvlmana	interrupt	InTown	aura	periodic	perdelay	finishing	passive	progressive	general	scroll	calc1	*calc1 desc	calc2	*calc2 desc	calc3	*calc3 desc	calc4	*calc4 desc	Param1	*Param1 Description	Param2	*Param2 Description	Param3	*Param3 Description	Param4	*Param4 Description	Param5	*Param5 Description	Param6	*Param6 Description	Param7	*Param7 Description	Param8	*Param8 Description	InGame	ToHit	LevToHit	ToHitCalc	ResultFlags	HitFlags	HitClass	Kick	HitShift	SrcDam	MinDam	MinLevDam1	MinLevDam2	MinLevDam3	MinLevDam4	MinLevDam5	MaxDam	MaxLevDam1	MaxLevDam2	MaxLevDam3	MaxLevDam4	MaxLevDam5	DmgSymPerCalc	EType	EMin	EMinLev1	EMinLev2	EMinLev3	EMinLev4	EMinLev5	EMax	EMaxLev1	EMaxLev2	EMaxLev3	EMaxLev4	EMaxLev5	EDmgSymPerCalc	ELen	ELevLen1	ELevLen2	ELevLen3	ELenSymPerCalc	aitype	aibonus	cost mult	cost add
radialsplash	400													splash											2+(stat('strength'.accr)+stat('dexterity'.accr))/200																																																																																				1	2		none												SC	SC	xx																	1																							1						1	7	5	0	1																																		1																																													0

missiles.txt

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Missile	Id	pCltDoFunc	pCltHitFunc	pSrvDoFunc	pSrvHitFunc	pSrvDmgFunc	SrvCalc1	*srv calc 1 desc	Param1	*param1 desc	Param2	*param2 desc	Param3	*param3 desc	Param4	*param4 desc	Param5	*param5 desc	CltCalc1	*client calc 1 desc	CltParam1	*client param1 desc	CltParam2	*client param2 desc	CltParam3	*client param3 desc	CltParam4	*client param4 desc	CltParam5	*client param5 desc	{filtered}	*server hit calc 1 desc	{filtered}	*server hit param1 desc	{filtered}	*server hit param2 desc	{filtered}	*server hit param3 desc	CHitCalc1	*client hit calc1 desc	cHitPar1	*client hit param1 desc	cHitPar2	*client hit param2 desc	cHitPar3	*client hit param3 desc	DmgCalc1	*damage calc 1	dParam1	*damage param1 desc	dParam2	*damage param2 desc	Vel	MaxVel	VelLev	Accel	Range	LevRange	Light	Flicker	Red	Green	Blue	InitSteps	Activate	LoopAnim	CelFile	animrate	AnimLen	AnimSpeed	RandStart	SubLoop	SubStart	SubStop	CollideType	CollideKill	CollideFriend	LastCollide	Collision	ClientCol	ClientSend	NextHit	NextDelay	xoffset	yoffset	zoffset	Size	SrcTown	CltSrcTown	CanDestroy	ToHit	AlwaysExplode	Explosion	Town	NoUniqueMod	NoMultiShot	Holy	CanSlow	ReturnFire	GetHit	SoftHit	KnockBack	Trans	Qty	Pierce	SpecialSetup	MissileSkill	Skill	ResultFlags	HitFlags	HitShift	ApplyMastery	SrcDamage	Half2HSrc	SrcMissDmg	MinDamage	MinLevDam1	MinLevDam2	MinLevDam3	MinLevDam4	MinLevDam5	MaxDamage	MaxLevDam1	MaxLevDam2	MaxLevDam3	MaxLevDam4	MaxLevDam5	DmgSymPerCalc	EType	EMin	MinELev1	MinELev2	MinELev3	MinELev4	MinELev5	Emax	MaxELev1	MaxELev2	MaxELev3	MaxELev4	MaxELev5	EDmgSymPerCalc	ELen	ELevLen1	ELevLen2	ELevLen3	HitClass	NumDirections	LocalBlood	DamageRate	TravelSound	HitSound	ProgSound	ProgOverlay	ExplosionMissile	SubMissile1	SubMissile2	SubMissile3	HitSubMissile1	HitSubMissile2	HitSubMissile3	HitSubMissile4	CltSubMissile1	CltSubMissile2	CltSubMissile3	CltHitSubMissile1	CltHitSubMissile2	CltHitSubMissile3	CltHitSubMissile4	EOL
splash	706	1		1	44																																																				2				255	255	255	1	0	0	null	1024	1	16					3	1		1		1							3				1	1								1									5		8		128																																			32																						0

Particular benefits of using Radial Splash:
(1) Easy to control radius, defined by aurarangecalc which allows calculations (in the examples above, I gave it a basic calc that gives more radius with strength and dexterity).
(2) Large control over how it deals damage. You can prevent it from gaining +damage% entirely if you want, making it behave kind of like Vengeance's elemental damage in that it only uses your base damage values (i.e. if you have 100 physical damage and +500% damage, your splash will still only deal 100 damage). You could prevent +damage% from applying, then re-apply only the pieces of +damage% you want. For example, you could make it so that only strength and dexterity (but not other sources of +damage% like might and fanaticism) increase splash damage.
(3) Does not use nextdelay. Melee splash that uses nextdelay is really awkward, since any other source of nextdelay will interrupt it. For example, Stormlash in a mod with Nextdelay Splash is almost worthless, since each Tornado it produces has nextdelay=25, which would prevent you from dealing melee splash for 25 frames. This also means that Nextdelay Splash can't really be given to minions or hirelings, otherwise the player will be competing with their own melee splash. Radial Splash does not have this issue, since it is instantaneous radial damage.

There are a few oddities/drawbacks as well:
(1) You can't really have a custom splash shape when using radial splash, it will always be a circular explosion from a specified point in space (in the example skills.txt given, it will spawn from the enemy attacked). Nextdelay methods can, for example, shoot out specific patterns of missiles. From playing around with Radial Splash, I think the shape feels good as long as the radius isn't absurdly huge.
(2) The way it appends +damage% is funky. It will ONLY apply +damage% IF the missile hits a target. Moreover, sources of specific +damage% versus a monster, like +damage% vs undead, will apply to everyone within radius if the target hit is of the same type. The settings I have in my above missiles.txt example is purposely made to ensure that it will hit a target almost always. As such, there are a few possibilities for what will happen. Let's take an example of 100 physical damage, +50% damage from Strength and strbonus, and +50% damage vs undead:
(a) Splash-creating missile misses. No damage is dealt, the splash isn't even created.
(b) Splash-creating missile hits nothing, detonating in the air. Only base damage is dealt: 100 damage is dealt to everything in radius.
(c) Splash-creating missile hits a non-undead target. Base damage is applied with +50% damage from strength: 150 damage is dealt to everything in radius.
(d) Splash-creating missile hits an undead target. Base damage is applied with +50% damage from strength and +50% damage vs undead: 200 damage is dealt to everything in radius, even non-undead targets.

If you decide to try out Radial Splash and notice anything odd about it or have any issues, then let me know! Also note that it obeys resultflags and hitflags, so you can prevent it from dealing hit-effects and a few other things. Preventing hit-effects would, for example, allow you to prevent it from dealing crushing blow and allow you to safely give it via ctc-on-striking without having to worry about it self-triggering.

[eleriaqueen]

Interesting post Cypress!
Resultflags/Hitflags seem woefully under-documented though. Skills.txt fileguide contains little info about them.

In your non-missile skill guide I see that

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resultflag=32 prevents quite a few effects from being applied, like ctc on striking and crushing blow

Okay, is there a reference for these resultflags/hitflags somewhere ?
Thank you for your time Cypress.

[Cypress]

Hi eleriaqueen, there is now: https://d2mods.info/forum/viewtopic.php?f=4&t=67405. It lists all of the hitflags/resultflags described in D2R txt file guide and the results of my testing, although some are still not understood or maybe deprecated.

[eleriaqueen]

Thanks a lot for your contributions Cypress,
I tried changing paladin's Sacrifice skill into a hit that spawns a small Radial AoE by using funcs 11/19 (Charged Strike) and it worked but I'm not sure about a few things...
In your example you only set srvmissile, not cltmissile, why is that ? Is cltmissile only used for "display" purposes, not for collision ?
Is Charged Strike a good skill to copy funcs from in order to spawn missile on successful hit or is there an alternative ?

[Cypress]

Since it is radial damage, you will likely want to use radial cltside graphics. The best I can think of is immolationarrow's pclthitfunc=12, which produces defined three random clthitsubmissile within the defined radius. Here are the settings I used:

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radialsplash	400													splash											2+(stat('strength'.accr)+stat('dexterity'.accr))/200																																																																							splash													1	2		none												SC	SC	xx																	1	1																						1						1	7	5	0	1										rng	cltside radius																							1																																													0

To radialsplash, I added itemclteffect=1, cltmissile=splash and calc1=rng.

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splash	706	1	12	1	44																										100	fire duration	0	explosion radius (0 = skill)					100	fire duration	0	disc radius (0 = skill)	25	disc density													2				255	255	255	1	0	0	null	1024	1	16					3	1		1		1							3				1	1								1									5		8		128																																			32																		teethexplode	bonespiritexplode	teethexplode		0

For the missile splash, gave it pclthitfunc=12, s.hitcalc1/chitcalc1=100 (how long the cltside missiles last), chitpar1=0 (radius, controlled by skill calc1 if set to 0), chitpar2=25 (density of cltside missiles, you can use a larger or smaller value if you want), clthitsubmissile1/2/3=teethexplode. Oddly, the srvside setting for s.hitcalc1 seems to control chitcalc1, hence why both were set.

For controlling this, all you really need to care about is:
s.hitcalc1/chitcalc1 which should be at least the same value as the clthitsubmissiles so that they do not disappear prematurely (I kept it at 100, the same as immolationarrow; might help reduce lag if you keep it at the exact length of the clthitsubmissile).
chitpar2 density with larger values producing more clthitsubmissile within the radius, if this value is too large you might get lag, especially with high attack speeds.
clthitsubmissile1/2/3, which are randomly selected such that you can have up to three different clthitsubmissiles appearing (I used teethexplode twice and bonespiritexplode once, giving a bias towards the less gaudy teethexplode).

[Bmute]

(in the example skills.txt given, it will spawn from the enemy attacked)

Somehow it spawns from my character. This is very noticeable with a smaller radius. Enemies close to the target but far away from me takes no damage, while enemies behind me (and far away from the target) takes damage. I want it to spawn from the target. What did I do wrong?

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Attack	0		attack	1	1									splash											7																																																																		1	1																		0		both		weap			tpot							A1	A1	A1				1		1	1								1		1									1									1					1		1				0	8	0	0	1					1			1																										1								8	128																																				0

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splash	706	1		1	44																																																				2				255	255	255	1	0	0	null	1024	1	16					3	1		1		1							3				1	1								1									5		8		128																																			32																						0

Also splash doesn't do crushing blow. I tested with a beefy Champion Decayed and he was at 90% life after I whacked his friend for 2 minutes! How do I add it to the splash?

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Vengeance	111	pal	vengeance	35	2									splash											7																																																							1																													1	3		h2h		mele										A1	A1	xx				1		1	1								1		1									18	20					Zeal								1						1	6	0	1	1										ln12+skill('Resist Fire'.blvl)*par8+skill('Salvation'.blvl)*par7	fire damage%	ln12+skill('Resist Cold'.blvl)*par8+skill('Salvation'.blvl)*par7	cold damage%	ln12+skill('Resist Cold'.blvl)*par8+skill('Salvation'.blvl)*par7	ltng damage%			70	percent damage	18	percent damage per level	0	?	0	?	0	?	0	?	0	damage synergy	0	damage synergy	1	20	10						8	128														cold														30	15	15	15				640	16000

Most importantly, skill effects aren't added to the splash, for example the elemental damage in Vengeance. How do I add this to the splash as well?

[Cypress]

Hello Bmute.

Your first issue is because you are casting the splash directly with Attack, instead of using it as ctc. The settings of itemeffect=1, itemclteffect=1 make it so that the ctc effects (i.e. the splash) are released from the target rather than the user. You can sort of fix this by giving the Splash missile additional Range and a lot more Vel so that the Splash missile will detonate onto the monster along the path of your attack.

If you want crushing blow, then you will want to set in missiles.txt: Splash's HitFlags=32.

As for adding damage bonuses to Splash, you can sort of do that. For your example, you could make it so Vengeance gives its elemental damage bonuses via aurastats while swinging, in which case Vengeance's damage bonus will be added to any concurrent weapon damage events like Splash. Or you could make it so Vengeance releases its own special splash, which only deals Vengeance's elemental damage.

[ascar]

Since it is radial damage, you will likely want to use radial cltside graphics. The best I can think of is immolationarrow's pclthitfunc=12, which produces defined three random clthitsubmissile within the defined radius. Here are the settings I used:

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radialsplash	400													splash											2+(stat('strength'.accr)+stat('dexterity'.accr))/200																																																																							splash													1	2		none												SC	SC	xx																	1	1																						1						1	7	5	0	1										rng	cltside radius																							1																																													0

To radialsplash, I added itemclteffect=1, cltmissile=splash and calc1=rng.

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splash	706	1	12	1	44																										100	fire duration	0	explosion radius (0 = skill)					100	fire duration	0	disc radius (0 = skill)	25	disc density													2				255	255	255	1	0	0	null	1024	1	16					3	1		1		1							3				1	1								1									5		8		128																																			32																		teethexplode	bonespiritexplode	teethexplode		0

For the missile splash, gave it pclthitfunc=12, s.hitcalc1/chitcalc1=100 (how long the cltside missiles last), chitpar1=0 (radius, controlled by skill calc1 if set to 0), chitpar2=25 (density of cltside missiles, you can use a larger or smaller value if you want), clthitsubmissile1/2/3=teethexplode. Oddly, the srvside setting for s.hitcalc1 seems to control chitcalc1, hence why both were set.

For controlling this, all you really need to care about is:
s.hitcalc1/chitcalc1 which should be at least the same value as the clthitsubmissiles so that they do not disappear prematurely (I kept it at 100, the same as immolationarrow; might help reduce lag if you keep it at the exact length of the clthitsubmissile).
chitpar2 density with larger values producing more clthitsubmissile within the radius, if this value is too large you might get lag, especially with high attack speeds.
clthitsubmissile1/2/3, which are randomly selected such that you can have up to three different clthitsubmissiles appearing (I used teethexplode twice and bonespiritexplode once, giving a bias towards the less gaudy teethexplode).

Thanks, i found the generic splash skill that you can find in this forum or some mods, but seems to not work on all items...

I will test your solution !

[kolo1234]

Sorry for the necro but did the file jessedazebra uploaded get blocked? their link is gone. can anyone please help me?

I am also trying to copy Cypress' code but I cant seem to follow completely as some entries are confusing: on the missiles.txt code after cltParam5=2 for "*client Param5 desc" theres like 3 255 entries under it that dont align for me and I have no idea where to place them and if it should matter I am also using "D2Excel Plus"

Any advice would be greatly appreciated!