Caliban said:
*shrug* It seems that you don't understand. The grid is always an abstraction.
Please do not be condescending. You've known me long enough to know that I understand what most people post and if I do not, I'll ask a question.
The point is that a square grid is a poor abstraction due to orientation problems.
A hex grid is generally superior, but even it has problems inherent with certain shape rooms/corridors.
Caliban said:
But re-orienting the grid won't change the fact that there isn't enough room between a person and the corner for you to pass between without entering the persons square.
Are you sure? Are you telling me that I cannot reorient a grid such that there is room to get by sometimes, but not others?
For example:
* 1 2 *
* 3 4 *
** 5 **
** 6 **
** 7 **
(hopefully this displays correctly)
10 foot wide corridor becomes a 5 foot wide corridor and is perfectly symmetrical.
If the squares are on 1, 2, 3, and 4, then it is easy to get from 5 to 4 or 4 to 5 without stepping through 3. 5 isn't a full square, rather it is two half squares, but I do not know of a DM who would say that you could not walk up that corridor.
If the squares are on 5, 6, and 7, then there is no square 3 or 4, rather the square is between 3 and 4 and we are basically in the original position from this thread where a square is at the end of the corridor.
So, depending on where the DM puts the squares dictates whether a character can block the corridor (using your interpretation) from within both the 5' and 10' areas (i.e. on 5 or between 3 and 4), or only within the 5' area (only on 5).
Also, a grid could contain a different representation in the DMs mind and the Players' minds.
In the original example, you as a DM might imagine that square 3 blocks any movement into the corridor. In other words, a character in 3 is at the end of the corridor blocking it.
The players might imagine that a character in 3 is inside the room and not standing in the corridor. Hence, you merely have to move around that character.
But, don't you think it a little strange that someone can block an entire intersection like this?
* * - * *
* * - * *
- - x - -
* * - * *
* * - * *
This to me is just silly. Since there are AoO rules, nothing should prevent someone from being able to move past.
Caliban said:
This is even more true when it comes to doorways.
Doorways are a problem for any grid system. Often, the edge of a grid (square or hex) comes to the edge of the door. So, characters cannot be both within the grid and standing in the doorway. Either they are on this side of the door, or they are on the far side of the door (typically).
And, due to this problem, I can understand why you would prevent characters from moving past into the doorway, and hence, why you also prevent characters from moving past into a 5 foot corridor (as per the original example).