<function name="Activate" parent="Entity" type="classfunc"> <description> Activates the entity. This needs to be used on some entities (like constraints) after being spawned. <note>For some entity types when this function is used after <page>Entity:SetModelScale</page>, the physics object will be recreated with the new scale. [Source-sdk-2013](https://github.com/ValveSoftware/source-sdk-2013/blob/55ed12f8d1eb6887d348be03aee5573d44177ffb/mp/src/game/server/baseanimating.cpp#L321-L327)</note> <note>Calling this method after <page>Entity:SetModelScale</page> will recreate a new scaled `SOLID_VPHYSICS` <page>PhysObj</page> on scripted entities. This can be a problem if you made a properly scaled <page>PhysObj</page> of another kind (using <page>Entity:PhysicsInitSphere</page> for instance) or if you edited the <page>PhysObj</page>'s properties. This is especially the behavior of the Sandbox spawn menu.</note>⤶ <bug issue="3372">This crashes the game with scaled vehicles.</bug> </description> <realm>Shared</realm> </function> <example> <description>Spawns a 'sent_ball' on the player.</description> <code> function ENT:SpawnMe(ply) local SpawningPos = ply:GetPos() local ent = ents.Create("sent_ball") ent:SetPos( SpawningPos ) ent:Spawn() ent:Activate() end </code> </example>