Forged Alliance Forever

Re: Buffs in runtime

2017-12-13T22:40:50+02:00

I'm currently working on the second path with a global variable. Thanks again, Frank83, for a lot of ideas and examples.

Statistics: Posted by PerfectWay — 13 Dec 2017, 22:40

Re: Buffs in runtime

2017-12-12T23:42:01+02:00

A simple solution is adding a thread (for example 10s timed) in your individual unit script that regulary casts the buff on all your units.

Another way (more cpu optimized) is to create a global var that is set when you build your buff building. Then apply on each new unit the buff (unit.lua OnStopBeingBuilt function) if the var is ok.

For the radius, you just have to cover all the map. 1000 is maybe not enough, i don't know you need to try.

Statistics: Posted by Franck83 — 12 Dec 2017, 23:42

Re: Buffs in runtime

2017-12-12T22:36:48+02:00

This is a good idea, but what about the units that will be built after the radar is completed? For them, the buff will not be applied. A radius of 1000 is how much this is? What is the metric system based on?

Statistics: Posted by PerfectWay — 12 Dec 2017, 22:36

Re: Buffs in runtime

2017-12-10T16:48:33+02:00

I'm just thinking that since your building triggers the buffs, a better way (or the perfectway ) would be to just edit your individual unit script.

For example, building a UEF radar (UEB3101_Script.lua) providing a 20% vision buff to all existing (only) units around :

Code:: local Buff = import('/lua/sim/buff.lua') local TRadarUnit = import('/lua/terranunits.lua').TRadarUnit UEB3101 = Class(TRadarUnit) { OnStopBeingBuilt = function(self,builder,layer) TRadarUnit.OnStopBeingBuilt(self,builder,layer) local units = self:GetAIBrain():GetUnitsAroundPoint(categories.MOBILE, self:GetPosition(), 1000, 'Ally') -- grab all mobile units in 1000 area distance around the radar BuffBlueprint { Name = 'VisionRadius', DisplayName = 'VisionRadius', BuffType = 'VisionRadius', Stacks = 'REPLACE', Duration = -1, Affects = { VisionRadius = { Mult = 1.2, -- +20% vision radius }, }, for k, unit in units do Buff.ApplyBuff(unit , 'VisionRadius') end } end, } TypeClass = UEB3101

Statistics: Posted by Franck83 — 10 Dec 2017, 16:48

Re: Buffs in runtime

2017-12-10T00:39:29+02:00

When you will cast your buff, it depends if you want to apply it on new units only or on already built .

You may need this function for immediate buff on already build units :

Code:: local units = Unit:GetAIBrain():GetUnitsAroundPoint(categories.MOBILE, Unit:GetPosition(), 1000, 'Ally') -- grab all mobile units in 1000 area distance around your research center BuffBlueprint { Name = MaxHealthBuff', DisplayName = 'MaxHealthBuff', BuffType = 'MaxHealth', Stacks = 'REPLACE', Duration = -1, Affects = { MaxHealth = { Mult = 1.2, -- 20% Max Health buff }, }, } for k, unit in units do -- casting your buff on each grabbed unit Buff.ApplyBuff(unit , 'MaxHealthBuff') end

Statistics: Posted by Franck83 — 10 Dec 2017, 00:39

Re: Buffs in runtime

2017-12-10T00:26:52+02:00

Thanks, i will try to implement this

Statistics: Posted by PerfectWay — 10 Dec 2017, 00:26

Re: Buffs in runtime

2017-12-10T00:29:53+02:00

An easy way to do what you want is to add a category in your building unit blueprint that will trigger the buff :

Example : adding a RESEARCHCENTER category.

Code:: Categories = { 'RESEARCHCENTER', -- Your add 'SELECTABLE', ... },

Then in your unit.lua

Code:: local OldUnit = Unit Unit = Class(OldUnit) { OldOnStopBeingBuilt = Unit.OnStopBeingBuilt, OnStopBeingBuilt = function(Unit, builder, layer) Unit.OldOnStopBeingBuilt(Unit, builder, layer) -- Here you call the old function if Unit then local id = Unit:GetEntityId() local bp = Unit:GetBlueprint() if table.find(bp.Categories, 'RESEARCHCENTER') then -- Cast your buff end end end, }

Statistics: Posted by Franck83 — 10 Dec 2017, 00:13

Re: Buffs in runtime

2017-12-09T23:56:00+02:00

If you want to hook unit.lua, you need to create a hook rep and follow the unit.lua original path.

\Mods\YourModName\Hook\lua\sim\unit.lua

So then you need to create an empty lua file called unit.lua.

This the hook code to add in your unit.lua (you need to hook the class and the function) :

Code:: local OldUnit = Unit Unit = Class(OldUnit) { OldOnStopBeingBuilt = Unit.OnStopBeingBuilt, OnStopBeingBuilt = function(Unit, builder, layer) Unit.OldOnStopBeingBuilt(Unit, builder, layer) -- Here you call the old function -- Add here your code. end, }

So the engine will execute your code after executing the original OnStopBeingBuilt function.

Good luck !

Statistics: Posted by Franck83 — 09 Dec 2017, 23:56

Re: Buffs in runtime

2017-12-09T23:17:15+02:00

Many thanks, Franck83, very detailed answer
Now I have a small question about the hooking mechanism: I have to create a full copy of the file and add the code to the desired function or I can make a file with the same name, but change only the function that I need, for example OnStopBeingBuilt in Unit.lua?

Statistics: Posted by PerfectWay — 09 Dec 2017, 23:17

Re: Buffs in runtime

2017-12-10T00:01:00+02:00

Hi PerfectWay,

You need some prerequisites to do what you want :

Ui (all user interface tools) and sim (all units, weapons and projectiles methods...) are running in different threads. So data exchanging is not automatic.

For example, if you want to click on a ok button of a dialog (Ui) and trigger a buff (sim), you need to use simcallbacks (this will send your data from ui to sim) :

(I assume you know how to create a dialog or a button in Ui)

Let's do it for a buildrate bonus :

Code:: ... okBtn.OnClick = function(self) ... SimCallback ({Func= 'SetBuildingSpeed', Args = {id = _id, BuildingRate = Your building rate}}) dialog:Close() end

You need to register your callback by hooking SimCallbacks.lua and type your function path :

Code:: Callbacks.SetBuildingSpeed = import('/Mods/Heroes_Reloaded/Modules/UiToSim.lua').SetBuildingSpeed

Then in your file UiToSim.lua (you can type another path or file name) :

Code:: function SetBuildingSpeed(Unit) local id = Unit.id local unit = GetUnitById(id) unit:SetBuildingRate(Unit.BuildingRate) end

Then you need to hook unit.lua and add a function :

Code:: SetBuildingRate = function(self, BuildRate) BuffBlueprint { Name = 'BuildingRateBuff', DisplayName = 'BuildingRateBuff', BuffType = 'BuildingRateBuff', Stacks = 'REPLACE', Duration = -1, Affects = { BuildRate = { Add = BuildRate or 0, Mult = 1, }, }, } Buff.ApplyBuff(self, 'BuildingRateBuff') end,

You can do the same thing with other affects DamageRadius, Regen, MaxHealth....

I didn't test the code but i use theses features a lot in my mod.

For the buffs when you create a building, i recommend you to hook the OnStopBeingBuilt function in unit.lua.
Here you can test the kind of building made and if it's ok you can trigger your SetBuildingRate function in unit.lua.
Maybe your need to test it when it is destroyed to remove the buff.

Hope this will help, good luck !

Edit : i corrected a code error.

Statistics: Posted by Franck83 — 07 Dec 2017, 00:17

Re: Buffs in runtime

2017-12-06T21:26:15+02:00

i don't know a lot about modding but what you try to do seems like something that the Alliance of Heroes mod can do
maybe franck83 can lend you a hand

Statistics: Posted by PhilipJFry — 06 Dec 2017, 21:26

Buffs in runtime

2017-12-06T21:03:59+02:00

Hi, all
I want to learn how to add some bonuses to units in the game. For example, + 10% to health or + 10% to damage.
I know how to do this before starting the game by modifying the blueprints

Code:: function ModBlueprints(all_bps) ...

but I need it so that it can be done taking into account some condition, for example, pressing a button or building a certain structure, as in ExperimentalWar 2.8. For example, we are building a structure that raises the health of all mobile units by 50%, so after its completion, the characteristics of all existing units must be recalculated, and the characteristics of new units should take into account this bonus.
How can I implement such functionality? Maybe someone has already used this? I will be grateful for any advice.

Statistics: Posted by PerfectWay — 06 Dec 2017, 21:03