The following shows several examples of creating units or illusions in DotA 2 modding. This is with regards to server sided modding (custom games in DotA 2). It uses Lua as a language and requires some prior understanding of DotA 2 modding and Lua.<\/p>\n\n\n\n
With exception to creating illusions, the code below shows creation of units in a synchronous manner. Take a careful look at the differences. In particular, when creating units, you set both Illusions of heroes should be done in an asynchronous manner. This is because the copying of items and abilities takes a longer execution time. Else, you will face latency issues while playing DotA 2. If you want to, you can make creation of both illusions and units asynchronous too.<\/p>\n\n\n\n The following shows several examples of creating units or illusions in DotA 2 modding. This is with regards to server sided modding (custom games in DotA 2). It uses Lua as a language and requires some prior understanding of DotA 2 modding and Lua. With exception to creating illusions, the code below shows creation of … Continue reading “Creating units or illusions in DotA 2 Lua Modding”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[2,5,29],"tags":[201,203,202],"class_list":["post-842","post","type-post","status-publish","format-standard","hentry","category-information-technology","category-programming","category-tutorials","tag-dota-2","tag-dota-2-modding","tag-lua"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/woohuiren.me\/blog\/wp-json\/wp\/v2\/posts\/842"}],"collection":[{"href":"https:\/\/woohuiren.me\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/woohuiren.me\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/woohuiren.me\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/woohuiren.me\/blog\/wp-json\/wp\/v2\/comments?post=842"}],"version-history":[{"count":1,"href":"https:\/\/woohuiren.me\/blog\/wp-json\/wp\/v2\/posts\/842\/revisions"}],"predecessor-version":[{"id":843,"href":"https:\/\/woohuiren.me\/blog\/wp-json\/wp\/v2\/posts\/842\/revisions\/843"}],"wp:attachment":[{"href":"https:\/\/woohuiren.me\/blog\/wp-json\/wp\/v2\/media?parent=842"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/woohuiren.me\/blog\/wp-json\/wp\/v2\/categories?post=842"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/woohuiren.me\/blog\/wp-json\/wp\/v2\/tags?post=842"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}SetControllableByPlayer<\/code> and SetOwner<\/code>. However, when creating illusions of heroes, you only set SetControllableByPlayer<\/code> and SetPlayerID<\/code>. This is very important as using SetOwner<\/code> on a hero unit will cause some issues whereas non-hero entities does not have the method SetPlayerID<\/code>.<\/p>\n\n\n\nCreating a unit<\/h2>\n\n\n\n
local vTargetPosition = self:GetCursorPosition()\nlocal hTreant = CreateUnitByName( \"npc_dota_furion_treant\", vTargetPosition, true, self:GetCaster(), self:GetCaster():GetPlayerOwner(), self:GetCaster():GetTeamNumber() )\nif hTreant ~= nil then\n\thTreant:SetControllableByPlayer( self:GetCaster():GetPlayerID(), false )\n\thTreant:SetOwner( self:GetCaster() )\nend<\/code><\/pre>\n\n\n\nCreating a unit with timed lifespan of 5 seconds<\/h2>\n\n\n\n
\nmodifier_furion_force_of_nature_lua = class({})\n\nfunction modifier_furion_force_of_nature_lua:OnDestroy()\n\tif IsServer() then\n\t\tself:GetParent():ForceKill( false )\n\tend\nend\n\n--------------------------------------------------------------------------------\n\nfunction modifier_furion_force_of_nature_lua:DeclareFunctions()\n\tlocal funcs = {\n\t\tMODIFIER_PROPERTY_LIFETIME_FRACTION\n\t}\n\n\treturn funcs\nend\n\n--------------------------------------------------------------------------------\n\nfunction modifier_furion_force_of_nature_lua:GetUnitLifetimeFraction( params )\n\treturn ( ( self:GetDieTime() - GameRules:GetGameTime() ) \/ self:GetDuration() )\nend\n\n--------------------------------------------------------------------------------\n--------------------------------------------------------------------------------\n\nlocal vTargetPosition = self:GetCursorPosition()\nlocal hTreant = CreateUnitByName( \"npc_dota_furion_treant\", vTargetPosition, true, self:GetCaster(), self:GetCaster():GetPlayerOwner(), self:GetCaster():GetTeamNumber() )\nif hTreant ~= nil then\n\thTreant:SetControllableByPlayer( self:GetCaster():GetPlayerID(), false )\n\thTreant:SetOwner( self:GetCaster() )\n local kv = {\n\t\tduration = 5 -- Unit will live for 5 seconds\n\t}\n\n\thTreant:AddNewModifier( self:GetCaster(), self, \"modifier_furion_force_of_nature_lua\", kv )\nend<\/code><\/pre>\n\n\n\nCreating an illusion of a hero (asynchronous)<\/h2>\n\n\n\n
local caster = self:GetCaster()\nlocal unit_name = caster:GetUnitName()\nlocal origin = caster:GetAbsOrigin() + RandomVector(100)\nlocal modifyIllusion = function ( illusion )\n\tillusion:SetControllableByPlayer( caster:GetPlayerID(), false )\n\tillusion:SetPlayerID( caster:GetPlayerID() )\n\n\t-- Set the unit as an illusion\n\t-- modifier_illusion controls many illusion properties like +Green damage not adding to the unit damage, not being able to cast spells and the team-only blue particle\n\tillusion:AddNewModifier(caster, self:GetAbility(), \"modifier_illusion\", { duration = 5, outgoing_damage = 0, incoming_damage = 0 })\n\t-- Without MakeIllusion the unit counts as a hero, e.g. if it dies to neutrals it says killed by neutrals, it respawns, etc.\n\tillusion:MakeIllusion()\n\n\t-- Level Up the unit to the casters level\n\tlocal casterLevel = self:GetCaster():GetLevel()\n\tfor i = 2, casterLevel do\n\t\tillusion:HeroLevelUp(false)\n\tend\n\n\t-- Set the skill points to 0 and learn the skills of the caster\n\tillusion:SetAbilityPoints(0)\n\n\tlocal maxAbilities = caster:GetAbilityCount() - 1\n\n\tfor ability_id = 0, maxAbilities do\n\t\tlocal ability = caster:GetAbilityByIndex(ability_id)\n\t\tif ability then\n\t\t\tlocal abilityLevel = ability:GetLevel()\n\t\t\tif abilityLevel ~= 0 then\n\t\t\t\tlocal illusionAbility = illusion:GetAbilityByIndex(ability_id)\n\t\t\t\tif illusionAbility then\n\t\t\t\t\tillusionAbility:SetLevel(abilityLevel)\n\t\t\t\telse\n\t\t\t\t\t-- Add ability\n\t\t\t\t\tlocal abilityName = ability:GetAbilityName()\n\t\t\t\t\tlocal newAbility = illusion:AddAbility(abilityName)\n\t\t\t\t\tnewAbility:SetLevel(abilityLevel)\n\t\t\t\tend\n\t\t\tend\n\t\tend\n\tend\n\n\t-- Recreate the items of the caster\n\tfor itemSlot=0,5 do\n\t\tlocal item = caster:GetItemInSlot(itemSlot)\n\t\tif item ~= nil then\n\t\t\tlocal itemName = item:GetName()\n\t\t\tlocal newItem = CreateItem(itemName, illusion, illusion)\n\t\t\tillusion:AddItem(newItem)\n\t\tend\n\tend\nend\n\n-- Create unit\nCreateUnitByNameAsync(\n\tunit_name, -- szUnitName\n\torigin, -- vLocation,\n\ttrue, -- bFindClearSpace,\n\tcaster, -- hNPCOwner,\n\tcaster:GetPlayerOwner(), -- hUnitOwner,\n\tcaster:GetTeamNumber(), -- iTeamNumber\n\tmodifyIllusion\n)<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"