Think of attack action as a subset of standard action. The logic generally follows the same pattern as does magic with schools and subschools and then there are descriptors, etc.
When swift was added to the list of action types (it wasn't in the PHB) it required some comparisons of the various types of actions.
In a round a character is eligible for:
1 - move action
1 - standard action
1 - swift action
I think that is all action types available. Everything else are subsets or combinations.
An attack is a standard action. (consider it a subtype).
Casting a spell is a standard action. (another subtype)
A full round action is all actions for the round (i.e., no other actions can be taken). A full attack is subtype of this special case or combination of actions.)
An immediate action is just an action of the appropriate type that falls outside of the normal initiative order.
A charge is a move action that ends in an attack and takes up all actions for the round.
Even though it can be done as a partial action it cannot be combined with other actions, like attack and then charge, etc.
I don't know it is pretty easy to understand, especially if one looks at the table and not just the text itself.
When swift was added to the list of action types (it wasn't in the PHB) it required some comparisons of the various types of actions.
In a round a character is eligible for:
1 - move action
1 - standard action
1 - swift action
I think that is all action types available. Everything else are subsets or combinations.
An attack is a standard action. (consider it a subtype).
Casting a spell is a standard action. (another subtype)
A full round action is all actions for the round (i.e., no other actions can be taken). A full attack is subtype of this special case or combination of actions.)
An immediate action is just an action of the appropriate type that falls outside of the normal initiative order.
A charge is a move action that ends in an attack and takes up all actions for the round.
Even though it can be done as a partial action it cannot be combined with other actions, like attack and then charge, etc.
I don't know it is pretty easy to understand, especially if one looks at the table and not just the text itself.