Detect.lua

-- package.loaded.Invoker = nil

local Draw = require("Draw")
local Dict = require("Dict")
local Map = require("Map")
-- local Invoker = require("Invoker")

local Detect = {}

local option = Menu.AddOption({ "Awareness" }, "Detect", "Alerts you when certain abilities are used.")
-- local optionInvokerMapHack = Menu.AddOption({"Hero Specific", "Invoker Extension"}, "Map Hack", "use information from particle efftects, to tornado tping enemy, or sun strike enemy if it is tping, farming or roshing.")
local optionEnemyAround = Menu.AddOption({ "Awareness" }, "Enemy Around", "Show how many enemy hero around")
local font = Renderer.LoadFont("Tahoma", 30, Enum.FontWeight.EXTRABOLD)

local heroList = {}

-- index -> {name = Str; entity = Object; pos = Vector(), time = Int}
local posInfo = {}

-- index -> spellname
local particleInfo = {}

-- only for few cases
-- index -> heroName
local particleHero = {}

-- For particle effects that cant be tracked by OnParticleUpdateEntity(),
-- but have name info from OnParticleCreate() and position info from OnParticleUpdate()
-- (has been replaced by Dict.Phrase2HeroName())
-- spellname -> heroname
local spellName2heroName = {}

-- know particle's index, spellname; have chance to know entity
-- Entity.GetAbsOrigin(particle.entity) is not correct. It just shows last seen position.
-- NPC.GetUnitName(particle.entity) can be useful, like know blink start position, smoke position, etc
function Detect.OnParticleCreate(particle)
 if not Menu.IsEnabled(option) then return end
 if not particle or not particle.index then return end

 -- Log.Write("1. OnParticleCreate: " .. tostring(particle.index) .. " " .. particle.name .. " " .. NPC.GetUnitName(particle.entity))

 particleInfo[particle.index] = particle.name

 if particle.entity then
 particleHero[particle.index] = NPC.GetUnitName(particle.entity)
 end
end

-- know particle's index, position
function Detect.OnParticleUpdate(particle)
 if not Menu.IsEnabled(option) then return end
 if not particle or not particle.index then return end
 if not particle.position or not Map.IsValidPos(particle.position) then return end

 -- Log.Write("2. OnParticleUpdate: " .. tostring(particle.index) .. " " .. tostring(particle.position))

 if not particleInfo[particle.index] then return end

 local spellname = particleInfo[particle.index]
 local name = Dict.Phrase2HeroName(spellname)
 if not name or name == "" then name = particleHero[particle.index] end

 Detect.Update(name, nil, particle.position, GameRules.GetGameTime())

 -- if Menu.IsEnabled(optionInvokerMapHack) then
 -- Invoker.MapHack(particle.position, spellname)
 -- end
end

-- know particle's index, position, entity
function Detect.OnParticleUpdateEntity(particle)
 if not Menu.IsEnabled(option) then return end
 if not particle then return end
 if not particle.entity or not NPC.IsHero(particle.entity) then return end
 if not particle.position or not Map.IsValidPos(particle.position) then return end

 -- Log.Write("3. OnParticleUpdateEntity: " .. tostring(particle.index) .. " " .. NPC.GetUnitName(particle.entity) .. " " .. tostring(particle.position))

 Detect.Update(NPC.GetUnitName(particle.entity), particle.entity, particle.position, GameRules.GetGameTime())

 -- Invoker.MapHack(particle.position, "")
end

function Detect.Update(name, entity, pos, time)
 if not posInfo then return end

 local info = {}
 for i, val in ipairs(posInfo) do
 if val.name == name then
 if name then info.name = name end
 if entity then info.entity = entity end
 if pos then info.pos = pos end
 if time then info.time = time end
 posInfo[i] = info
 return
 end
 end

 info.name, info.entity, info.pos, info.time = name, entity, pos, time
 table.insert(posInfo, info)
end

function Detect.OnDraw()
 if not Menu.IsEnabled(option) then return end

 local myHero = Heroes.GetLocal()
 if not myHero then
 heroList, posInfo, particleInfo, particleHero = {}, {}, {}, {}
 return
 end

 local pos = Entity.GetAbsOrigin(myHero)
 local counter = 0
 local radius = 1500

 -- update hero list
 for i = 1, Heroes.Count() do
 local hero = Heroes.Get(i)
 local name = NPC.GetUnitName(hero)
 if not heroList[name] and not NPC.IsIllusion(hero) then
 heroList[name] = hero
 end
 end

 -- threshold for elapsed time
 local threshold = 3

 Draw.DrawMap()

 -- draw visible enemy on new map
 for name, enemy in pairs(heroList) do
 if enemy and not Entity.IsSameTeam(myHero, enemy) and not Entity.IsDormant(enemy) and Entity.IsAlive(enemy) then
 Draw.DrawHeroOnMap(name, Entity.GetAbsOrigin(enemy))
 end
 end

 -- draw enemy position given by particle effects
 for i, info in ipairs(posInfo) do
 if info and info.name and info.pos and info.time and math.abs(GameRules.GetGameTime() - info.time) <= threshold then

 -- no need to draw visible enemy hero on the ground
 if not heroList[info.name] or Entity.IsDormant(heroList[info.name]) then
 Draw.DrawHeroOnGround(info.name, info.pos)
 end

 -- no need to draw ally
 if not heroList[info.name] or not Entity.IsSameTeam(myHero, heroList[info.name]) then
 Draw.DrawHeroOnMap(info.name, info.pos)
 end
 end
 end

 -- show how many enemy hero around
 if not Menu.IsEnabled(optionEnemyAround) then
 -- TBD
 end
end

return Detect