ability_item_usage_crystal_maiden.lua

----------------------------------------------------------------------------
--	Ranked Matchmaking AI v1.3 New Structure
--	Author: adamqqq		Email:adamqqq@163.com
----------------------------------------------------------------------------
--------------------------------------
-- General Initialization
--------------------------------------
local utility = require(GetScriptDirectory() .. "/utility")
local ability_item_usage_generic = require(GetScriptDirectory() .. "/ability_item_usage_generic")
local AbilityExtensions = require(GetScriptDirectory() .. "/util/AbilityAbstraction")
local ItemUsage = require(GetScriptDirectory() .. "/util/ItemUsage-New")

local debugmode = false
local npcBot = GetBot()
if npcBot == nil or npcBot:IsIllusion() then
	return
end

local Talents = {}
local Abilities = {}
local AbilitiesReal = {}

ability_item_usage_generic.InitAbility(Abilities, AbilitiesReal, Talents)

local AbilityToLevelUp =
{
	Abilities[2],
	Abilities[1],
	Abilities[3],
	Abilities[3],
	Abilities[1],
	Abilities[4],
	Abilities[1],
	Abilities[1],
	Abilities[3],
	"talent",
	Abilities[3],
	Abilities[4],
	Abilities[2],
	Abilities[2],
	"talent",
	Abilities[2],
	"nil",
	Abilities[4],
	"nil",
	"talent",
	"nil",
	"nil",
	"nil",
	"nil",
	"talent",
}
local TalentTree = {
	function()
		return Talents[2]
	end,
	function()
		return Talents[4]
	end,
	function()
		return Talents[5]
	end,
	function()
		return Talents[8]
	end
}

-- check skill build vs current level
utility.CheckAbilityBuild(AbilityToLevelUp)

function BuybackUsageThink()
	ability_item_usage_generic.BuybackUsageThink();
end

function CourierUsageThink()
	ability_item_usage_generic.CourierUsageThink();
end

function AbilityLevelUpThink()
	ability_item_usage_generic.AbilityLevelUpThink2(AbilityToLevelUp, TalentTree)
end

--------------------------------------
-- Ability Usage Thinking
--------------------------------------
local cast = {}
cast.Desire = {}
cast.Target = {}
cast.Type = {}
local Consider = {}
local CanCast = { utility.NCanCast, function(t)
	return AbilityExtensions:StunCanCast(t, AbilitiesReal[2], false, true)
end, utility.NCanCast, utility.UCanCast }
local enemyDisabled = utility.enemyDisabled

function GetComboDamage()
	return ability_item_usage_generic.GetComboDamage(AbilitiesReal)
end

function GetComboMana()
	return ability_item_usage_generic.GetComboMana(AbilitiesReal)
end

-- crystal_maiden_crystal_nova
Consider[1] = function()

	local abilityNumber = 1
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local CastRange = ability:GetCastRange();
	local Damage = ability:GetAbilityDamage();
	local Radius = ability:GetSpecialValueInt("radius");


	local allys = npcBot:GetNearbyHeroes(1200, false, BOT_MODE_NONE);
	local enemys = npcBot:GetNearbyHeroes(CastRange, true, BOT_MODE_NONE)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)
	local creeps = npcBot:GetNearbyCreeps(CastRange, true)
	local WeakestCreep, CreepHealth = utility.GetWeakestUnit(creeps)

	--------------------------------------
	-- Global high-priorty usage
	--------------------------------------
	--try to kill enemy hero
	if (npcBot:GetActiveMode() ~= BOT_MODE_RETREAT)
	then
		if (WeakestEnemy ~= nil)
		then
			if (CanCast[abilityNumber](WeakestEnemy))
			then
				if (
					HeroHealth <= WeakestEnemy:GetActualIncomingDamage(Damage, DAMAGE_TYPE_MAGICAL) or
						(
						HeroHealth <= WeakestEnemy:GetActualIncomingDamage(GetComboDamage(), DAMAGE_TYPE_MAGICAL) and
							npcBot:GetMana() > ComboMana))
				then
					return BOT_ACTION_DESIRE_HIGH, WeakestEnemy:GetExtrapolatedLocation(0.3);
				end
			end
		end
	end
	--------------------------------------
	-- Mode based usage
	--------------------------------------
	-- LANING last hit
	if (npcBot:GetActiveMode() == BOT_MODE_LANING)
	then
		if ((ManaPercentage > 0.5 or npcBot:GetMana() > ComboMana))
		then
			local locationAoE = npcBot:FindAoELocation(true, false, npcBot:GetLocation(), CastRange, Radius, 0, Damage);

			if (locationAoE.count >= 1 and GetUnitToLocationDistance(npcBot, locationAoE.targetloc) <= CastRange)
			then
				return BOT_ACTION_DESIRE_LOW, locationAoE.targetloc;
			end
		end

		if ((ManaPercentage > 0.5 or npcBot:GetMana() > ComboMana) and ability:GetLevel() >= 2)
		then
			local locationAoE = npcBot:FindAoELocation(true, true, npcBot:GetLocation(), CastRange, Radius, 0, 0);
			if (locationAoE.count >= 2 and GetUnitToLocationDistance(npcBot, locationAoE.targetloc) <= CastRange)
			then
				return BOT_ACTION_DESIRE_LOW, locationAoE.targetloc;
			end
		end
	end

	-- If we're farming and can kill 3+ creeps with LSA
	if (npcBot:GetActiveMode() == BOT_MODE_FARM) then
		local locationAoE = npcBot:FindAoELocation(true, false, npcBot:GetLocation(), CastRange, Radius, 0, Damage);

		if (locationAoE.count >= 2 and GetUnitToLocationDistance(npcBot, locationAoE.targetloc) <= CastRange)
		then
			return BOT_ACTION_DESIRE_LOW, locationAoE.targetloc;
		end
	end

	-- If we're pushing or defending a lane and can hit 4+ creeps, go for it
	if (npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_TOP or
		npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_MID or
		npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_BOT or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_TOWER_TOP or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_TOWER_MID or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_TOWER_BOT)
	then
		local locationAoE = npcBot:FindAoELocation(true, false, npcBot:GetLocation(), CastRange, Radius, 0, 0);

		if (locationAoE.count >= 3 and GetUnitToLocationDistance(npcBot, locationAoE.targetloc) <= CastRange)
		then
			return BOT_ACTION_DESIRE_LOW, locationAoE.targetloc;
		end
	end

	-- If we're seriously retreating, see if we can land a stun on someone who's damaged us recently
	if (npcBot:GetActiveMode() == BOT_MODE_RETREAT and npcBot:GetActiveModeDesire() >= BOT_MODE_DESIRE_HIGH)
	then
		local tableNearbyEnemyHeroes = npcBot:GetNearbyHeroes(CastRange + Radius + 200, true, BOT_MODE_NONE);
		for _, npcEnemy in pairs(tableNearbyEnemyHeroes) do
			if (npcBot:WasRecentlyDamagedByHero(npcEnemy, 2.0))
			then
				if (CanCast[abilityNumber](npcEnemy))
				then
					return BOT_ACTION_DESIRE_MODERATE, npcEnemy:GetExtrapolatedLocation(0.3);
				end
			end
		end
	end

	-- If we're going after someone
	if (npcBot:GetActiveMode() == BOT_MODE_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_TEAM_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		local npcEnemy = npcBot:GetTarget();

		if (npcEnemy ~= nil)
		then
			if (CanCast[abilityNumber](npcEnemy) and GetUnitToUnitDistance(npcBot, npcEnemy) <= CastRange + 100)
			then
				return BOT_ACTION_DESIRE_HIGH, npcEnemy:GetExtrapolatedLocation(0.3);
			end
		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;

end

-- crystal_maiden_frostbite
Consider[2] = function()
	local abilityNumber = 2
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local CastRange = ability:GetCastRange();
	local Damage = ability:GetAbilityDamage();


	local allys = npcBot:GetNearbyHeroes(1200, false, BOT_MODE_NONE);
	local enemys = npcBot:GetNearbyHeroes(CastRange + 150, true, BOT_MODE_NONE)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)
	local creeps = npcBot:GetNearbyCreeps(CastRange + 300, true)
	local WeakestCreep, CreepHealth = utility.GetWeakestUnit(creeps)
	local StrongestCreep, CreepHealth2 = utility.GetStrongestUnit(npcBot:GetNearbyNeutralCreeps(CastRange + 200))
	--------------------------------------
	-- Global high-priorty usage
	--------------------------------------
	-- Check for a channeling enemy
	for _, npcEnemy in pairs(enemys) do
		if (npcEnemy:IsChanneling() and CanCast[abilityNumber](npcEnemy))
		then
			return BOT_ACTION_DESIRE_HIGH, npcEnemy
		end
	end


	--Try to kill enemy hero
	if (npcBot:GetActiveMode() ~= BOT_MODE_RETREAT)
	then
		if (WeakestEnemy ~= nil)
		then
			if (CanCast[abilityNumber](WeakestEnemy))
			then
				if (
					HeroHealth <= WeakestEnemy:GetActualIncomingDamage(Damage, DAMAGE_TYPE_MAGICAL) or
						(
						HeroHealth <= WeakestEnemy:GetActualIncomingDamage(GetComboDamage(), DAMAGE_TYPE_MAGICAL) and
							npcBot:GetMana() > ComboMana))
				then
					return BOT_ACTION_DESIRE_HIGH, WeakestEnemy;
				end
			end
		end
	end

	-- If we're in a teamfight, use it on the scariest enemy
	local tableNearbyAttackingAlliedHeroes = npcBot:GetNearbyHeroes(1000, false, BOT_MODE_ATTACK);
	if (#tableNearbyAttackingAlliedHeroes >= 2)
	then

		local npcMostDangerousEnemy = nil;
		local nMostDangerousDamage = 0;

		local tableNearbyEnemyHeroes = npcBot:GetNearbyHeroes(CastRange, true, BOT_MODE_NONE);
		for _, npcEnemy in pairs(tableNearbyEnemyHeroes) do
			if (CanCast[abilityNumber](npcEnemy) and not enemyDisabled(npcEnemy))
			then
				local Damage2 = npcEnemy:GetEstimatedDamageToTarget(false, npcBot, 3.0, DAMAGE_TYPE_ALL);
				if (Damage2 > nMostDangerousDamage)
				then
					nMostDangerousDamage = Damage2;
					npcMostDangerousEnemy = npcEnemy;
				end
			end
		end

		if (npcMostDangerousEnemy ~= nil)
		then
			return BOT_ACTION_DESIRE_HIGH, npcMostDangerousEnemy;
		end
	end
	--------------------------------------
	-- Mode based usage
	--------------------------------------
	--protect myself
	local enemys2 = npcBot:GetNearbyHeroes(500, true, BOT_MODE_NONE);
	if (npcBot:WasRecentlyDamagedByAnyHero(5))
	then
		for _, npcEnemy in pairs(enemys2) do
			if (CanCast[abilityNumber](npcEnemy) and not enemyDisabled(npcEnemy))
			then
				return BOT_ACTION_DESIRE_HIGH, npcEnemy
			end
		end
	end

	-- If my mana is enough,use it at enemy
	if (npcBot:GetActiveMode() == BOT_MODE_LANING)
	then
		if ((ManaPercentage > 0.4 or npcBot:GetMana() > ComboMana) and ability:GetLevel() >= 2)
		then
			if (WeakestEnemy ~= nil)
			then
				if (CanCast[abilityNumber](WeakestEnemy) and not enemyDisabled(WeakestEnemy))
				then
					return BOT_ACTION_DESIRE_LOW, WeakestEnemy;
				end
			end
		end
	end


	-- If we're farming and can kill 1
	if (npcBot:GetActiveMode() == BOT_MODE_FARM)
	then
		if (
			CreepHealth2 >= 600 and not StrongestCreep:GetUnitName() == "npc_dota_neutral_mud_golem" and
				not StrongestCreep:IsAncientCreep() and npcBot:GetMana() > 240) and
			not (StrongestCreep:WasRecentlyDamagedByAnyHero(3) and not StrongestCreep:WasRecentlyDamagedByHero(npcBot, 3))
		then
			return BOT_ACTION_DESIRE_MODERATE, StrongestCreep
		end
	end

	-- If we're going after someone
	if (npcBot:GetActiveMode() == BOT_MODE_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_TEAM_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		local npcEnemy = npcBot:GetTarget();

		if (npcEnemy ~= nil)
		then
			if (
				CanCast[abilityNumber](npcEnemy) and not enemyDisabled(npcEnemy) and
					GetUnitToUnitDistance(npcBot, npcEnemy) < CastRange + 75 * #allys)
			then
				return BOT_ACTION_DESIRE_MODERATE, npcEnemy
			end
		end
	end

	-- If we're seriously retreating, see if we can land a stun on someone who's damaged us recently
	if (npcBot:GetActiveMode() == BOT_MODE_RETREAT and npcBot:GetActiveModeDesire() >= BOT_MODE_DESIRE_HIGH)
	then
		local tableNearbyEnemyHeroes = npcBot:GetNearbyHeroes(CastRange, true, BOT_MODE_NONE);
		for _, npcEnemy in pairs(tableNearbyEnemyHeroes) do
			if (npcBot:WasRecentlyDamagedByHero(npcEnemy, 2.0))
			then
				if (CanCast[abilityNumber](npcEnemy) and not enemyDisabled(npcEnemy))
				then
					return BOT_ACTION_DESIRE_HIGH, npcEnemy;
				end
			end
		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;

end

-- crystal_maiden_freezing_field
Consider[4] = function()
	local abilityNumber = 4
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() or ability:IsHidden() then
		return BOT_ACTION_DESIRE_NONE
	end

	local CastRange = ability:GetCastRange();
	local Damage = ability:GetAbilityDamage();
	local Radius = ability:GetAOERadius()


	local allys = npcBot:GetNearbyHeroes(1200, false, BOT_MODE_NONE);
	local enemys = npcBot:GetNearbyHeroes(Radius, true, BOT_MODE_NONE)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)

	--------------------------------------
	-- Global high-priorty usage
	--------------------------------------
	local disabledheronum = 0
	for _, temphero in pairs(enemys) do
		if (enemyDisabled(temphero) or temphero:GetCurrentMovementSpeed() <= 200)
		then
			disabledheronum = disabledheronum + 1
		end
	end

	if (npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		if (#enemys + disabledheronum >= 3)
		then
			return BOT_ACTION_DESIRE_HIGH
		end
	end

	-- If we're going after someone
	if (npcBot:GetActiveMode() == BOT_MODE_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_TEAM_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		local npcEnemy = AbilityExtensions:GetTargetIfGood(npcBot)

		if (npcEnemy ~= nil)
		then
			if (
				CanCast[abilityNumber](npcEnemy) and enemyDisabled(npcEnemy) and
					npcEnemy:GetHealth() <= npcEnemy:GetActualIncomingDamage(
						npcBot:GetOffensivePower(), DAMAGE_TYPE_MAGICAL) and GetUnitToUnitDistance(npcEnemy, npcBot) <= Radius)
			then
				return BOT_ACTION_DESIRE_MODERATE
			end
		end
	end

	return BOT_ACTION_DESIRE_NONE
end

local iceFreezingEnemy
local freezingFieldHitSomeoneTimer

-- crystal_maiden_freezing_field_stop
Consider[5] = function()
	local ability = AbilitiesReal[5]
	if ability:IsHidden() or not ability:IsFullyCastable() then
		return 0
	end
	-- If we haven't had an enemy in freezing field range in 1.5 seconds and we do
	-- have an ally close to being in range, then cast stop freezing field
	if freezingFieldHitSomeoneTimer ~= nil and DotaTime() - freezingFieldHitSomeoneTimer >= 1.5 and
		#npcBot:GetNearbyHeroes(AbilitiesReal[4]:GetAOERadius() + 280, false, BOT_MODE_NONE) > 0 then
		return BOT_ACTION_DESIRE_HIGH
	end
	return 0
end

AbilityExtensions:AutoModifyConsiderFunction(npcBot, Consider, AbilitiesReal)

function AbilityUsageThink()
	-- Check if we're already using an ability
	if (npcBot:IsUsingAbility() or npcBot:IsChanneling() or npcBot:IsSilenced())
	then
		if npcBot:IsCastingAbility() and npcBot:GetCurrentActiveAbility() == AbilitiesReal[2] then
			if iceFreezingEnemy ~= nil and not iceFreezingEnemy:IsNull() and
				(not iceFreezingEnemy:IsAlive() or AbilityExtensions:HasAbilityRetargetModifier(iceFreezingEnemy)) then
				npcBot:Action_ClearActions(true)
			end
		end
		if npcBot:IsChanneling() and npcBot:GetCurrentActiveAbility() == AbilitiesReal[4] then
			if not AbilityExtensions:IsFarmingOrPushing(npcBot) then
				local glimmer = AbilityExtensions:GetAvailableItem(npcBot, "item_glimmer_cape")
				if glimmer and glimmer:IsFullyCastable() then
					ItemUsage.UseItemOnEntity(npcBot, glimmer, npcBot)
				end
				local enemies = npcBot:GetNearbyHeroes(AbilitiesReal[4]:GetAOERadius(), true, BOT_MODE_NONE)
				if #enemies > 0 or freezingFieldHitSomeoneTimer == nil then
					freezingFieldHitSomeoneTimer = DotaTime()
				else
					-- If we are channeling freezing field, haven't had an enemy in 
					-- freezing field range in 1.5 seconds and we do have an ally close
					-- to being in range, then interrupt casting
					if DotaTime() - freezingFieldHitSomeoneTimer >= 1.5 and
						#npcBot:GetNearbyHeroes(AbilitiesReal[4]:GetAOERadius() + 150, false, BOT_MODE_NONE) > 0 then
						local location = npcBot:GetLocation() + RandomVector(50)
						npcBot:Action_ClearActions(true)
					end
				end
			else
				freezingFieldHitSomeoneTimer = nil
			end
		end
		return
	end

	ComboMana = GetComboMana()
	AttackRange = npcBot:GetAttackRange()
	ManaPercentage = npcBot:GetMana() / npcBot:GetMaxMana()
	HealthPercentage = npcBot:GetHealth() / npcBot:GetMaxHealth()

	cast = ability_item_usage_generic.ConsiderAbility(AbilitiesReal, Consider)
	---------------------------------debug--------------------------------------------
	if (debugmode == true)
	then
		ability_item_usage_generic.PrintDebugInfo(AbilitiesReal, cast)
	end
	local index, target = ability_item_usage_generic.UseAbility(AbilitiesReal, cast)
	if index == 2 then
		iceFreezingEnemy = target
	end
end

function CourierUsageThink()
	ability_item_usage_generic.CourierUsageThink()
end