check tool improvements

[KaziiTheAvali]

I want to see if we can somehow add:

• "is holding" check with an optional ent argument - if ent argument is given, check if you're holding that entity, otherwise if you're holding anything
• "is looking at" with either a position or an ent argument.

I keep getting a relatively random desync where a cube won't always go through a portal in time even though position and angle checks pass.

[ThisAMJ]

"is holding" should be doable, I'll need to take a look

"is looking at" is more complex because of how we define "looking at"... right now we only know entities by their origin (see autoaim ent), which isn't necessarily in the middle. also needs epsilon.

[ThisAMJ]

just checked, "is holding" is super doable with optional ent argument

for the record: player m_hUseEntity and m_hAttachedObject are ehandles to the pickup controller and to the held object respectively. pickup controller then has m_grabController which also has m_attachedEntity