item_ogre_seal_totem = class({})
LinkLuaModifier( "modifier_item_ogre_seal_totem", "modifiers/modifier_item_ogre_seal_totem", LUA_MODIFIER_MOTION_NONE )
LinkLuaModifier( "modifier_ogreseal_flop", "modifiers/creatures/modifier_ogreseal_flop", LUA_MODIFIER_MOTION_BOTH )

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function item_ogre_seal_totem:Precache( context )
	PrecacheResource( "particle", "particles/creatures/ogre_seal/ogre_seal_warcry.vpcf", context )
	PrecacheResource( "particle", "particles/creatures/ogre/ogre_melee_smash.vpcf", context )
	PrecacheResource( "particle", "particles/units/heroes/hero_phantom_assassin/phantom_assassin_crit_impact.vpcf", context )
end

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function item_ogre_seal_totem:GetAOERadius()
	return self:GetSpecialValueFor( "radius" )
end

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function item_ogre_seal_totem:GetIntrinsicModifierName()
	return "modifier_item_ogre_seal_totem"
end

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function item_ogre_seal_totem:Spawn()
	self.required_level = self:GetSpecialValueFor( "required_level" )
end

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function item_ogre_seal_totem:OnHeroLevelUp()
	if IsServer() then
		if self:GetCaster():GetLevel() == self.required_level and self:IsInBackpack() == false then
			self:OnUnequip()
			self:OnEquip()
		end
	end
end

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function item_ogre_seal_totem:IsMuted()
	if self.required_level > self:GetCaster():GetLevel() then
		return true
	end
	if not self:GetCaster():IsHero() then
		return true
	end
	
	return self.BaseClass.IsMuted( self )
end

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function item_ogre_seal_totem:OnAbilityPhaseStart()
	if IsServer() then
		--self:GetCaster():StartGesture( ACT_DOTA_VICTORY )
	end

	return true
end

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function item_ogre_seal_totem:OnAbilityPhaseInterrupted()
	if IsServer() then
		ParticleManager:DestroyParticle( self.nPreviewFXIndex, true )

		--self:GetCaster():RemoveGesture( ACT_DOTA_VICTORY )
		self:GetCaster():RemoveModifierByName( "modifier_techies_suicide_leap_animation" )
	end
end

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function item_ogre_seal_totem:OnSpellStart()
	if IsServer() then
		if self.nPreviewFXIndex then
			ParticleManager:DestroyParticle( self.nPreviewFXIndex, true )
		end

		--self:GetCaster():RemoveGesture( ACT_DOTA_VICTORY )

		self.stun_duration = self:GetSpecialValueFor("stun_duration")

		local vToTarget = self:GetCursorPosition() - self:GetCaster():GetOrigin()
		vToTarget = vToTarget:Normalized()
		local vLocation = self:GetCaster():GetOrigin() + vToTarget * 25
		local kv =
		{
			vLocX = vLocation.x,
			vLocY = vLocation.y,
			vLocZ = vLocation.z
		}
		self:GetCaster():AddNewModifier( self:GetCaster(), self, "modifier_ogreseal_flop", kv )

		EmitSoundOn( "OgreTank.Grunt", self:GetCaster() )
	end
end

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function item_ogre_seal_totem:TryToDamage()
	if IsServer() then
		local radius = self:GetSpecialValueFor( "radius" )
		local damage = self:GetSpecialValueFor( "damage" )
		local silence_duration = self:GetSpecialValueFor( "silence_duration" )
		local enemies = FindUnitsInRadius( self:GetCaster():GetTeamNumber(), self:GetCaster():GetOrigin(), self:GetCaster(), radius, DOTA_UNIT_TARGET_TEAM_ENEMY, DOTA_UNIT_TARGET_HERO + DOTA_UNIT_TARGET_BASIC, DOTA_UNIT_TARGET_FLAG_NOT_ANCIENTS, 0, false )
		if #enemies > 0 then
			for _,enemy in pairs(enemies) do
				if enemy ~= nil and ( not enemy:IsMagicImmune() ) and ( not enemy:IsInvulnerable() ) then
					local DamageInfo =
					{
						victim = enemy,
						attacker = self:GetCaster(),
						ability = self,
						damage = damage,
						damage_type = DAMAGE_TYPE_PHYSICAL,
					}
					ApplyDamage( DamageInfo )
					if enemy:IsAlive() == false and enemy:GetUnitName() ~= "npc_dota_crate" and enemy:GetUnitName() ~= "npc_dota_vase" then
						local nFXIndex = ParticleManager:CreateParticle( "particles/units/heroes/hero_phantom_assassin/phantom_assassin_crit_impact.vpcf", PATTACH_CUSTOMORIGIN, nil )
						ParticleManager:SetParticleControlEnt( nFXIndex, 0, enemy, PATTACH_POINT_FOLLOW, "attach_hitloc", enemy:GetOrigin(), true )
						ParticleManager:SetParticleControl( nFXIndex, 1, enemy:GetOrigin() )
						ParticleManager:SetParticleControlForward( nFXIndex, 1, -self:GetCaster():GetForwardVector() )
						ParticleManager:SetParticleControlEnt( nFXIndex, 10, enemy, PATTACH_ABSORIGIN_FOLLOW, nil, enemy:GetOrigin(), true )
						ParticleManager:ReleaseParticleIndex( nFXIndex )

						EmitSoundOn( "Dungeon.BloodSplatterImpact", enemy )
					else
						enemy:AddNewModifier( self:GetCaster(), self, "modifier_stunned", { duration = self.stun_duration } )
					end
				end
			end
		end

		EmitSoundOnLocationWithCaster( self:GetCaster():GetOrigin(), "OgreTank.GroundSmash", self:GetCaster() )
		local nFXIndex = ParticleManager:CreateParticle( "particles/creatures/ogre/ogre_melee_smash.vpcf", PATTACH_WORLDORIGIN,  self:GetCaster()  )
		ParticleManager:SetParticleControl( nFXIndex, 0, self:GetCaster():GetOrigin() )
		ParticleManager:SetParticleControl( nFXIndex, 1, Vector( self.radius, self.radius, self.radius ) )
		ParticleManager:ReleaseParticleIndex( nFXIndex )

		GridNav:DestroyTreesAroundPoint( self:GetCaster():GetOrigin(), radius, false )
	end
end


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