Jacen said:
Yes, quite closely. I think that the combat starts when enemy is seen or spell takes an effect.
Seen, heard, spell goes off, what is the difference?
The rule in the book is when the DM decides based on the awareness of one or both sides.
Jacen said:
I would give an listen check if (for example) it was told that the door looks realy heavy or rusty. It could squeal when opened and that can specify that other is alerted and thus preventing the surprise. Or if they are guard watching the door and waiting it to be opened - even thought they are not fully alert and are talking (spot checks with modifiers for PCs benefit). So I could give NPCs some changes to notice the door.
Who cares if it is a silently opening door? Listen check DC 25. Spot check DC 10, higher if the NPCs are distracted playing dice or some such (any NPC might be looking in the direction of the door when it opens, right?).
Jacen said:
But the main point was that I wouldn't start the combat before the door is open and they see the enemy. If the door is opened slowly and carefully to check if there are anybody inside more rolls for NPCs to avoid the surprise.
First off, I wouldn't typically allow the door to be opened before combat either. However, if the players requested it, I might allow it in some situations because it is allowable by the rules (as per the DM of the OP).
But, the difference between your POV and my POV is that if the door gets opened pre-combat, the NPCs immediately get a check to notice it (and/or to notice a PC opening the door) with my POV. Those NPCs who make the check, are not surprised. With your POV, the NPCs are automatically surprised. How (according to the rules)?
And, why does one have to "see the enemy"?
Your players cannot have a fight with a Wizard with a Greater Invisibility up?
And, how does this follow the rules?
The rules state that one only has to be aware of the enemy, not that they have to see him.
And chances are, some NPCs might see the PCs if the PCs open the door. So, your point here does not make sense.
Jacen said:
If the door moves silently (and is not locked) and kick in succeeds then I wouldn't give any checks more besideds listen for precombat spell casting. And by default I think door is good and moves quite silently. And what goes for spell casting, you have to say verbal components aloud. So that is the difference in basic case.
Well, most doors in a medieval setting probably wouldn't be very silent unlike well designed doors in modern life. Maybe in the house of a noble or powerful merchant, but not most doors in many adventuring settings.
But regardless of that, I still do not understand you.
What difference?
DC 0 Listen to hear a spell being cast. DC 10 Spot to see the door opening. DC 10 to hear a door opening. Whatever.
How is this different as you claim? You are not making sense. Sorry.
The door could be well oiled. How is that pertinent to this discussion. That just makes the DC for a door opening Listen check higher. But, the NPCs would still get a Listen and/or Spot check, right?
Just because a door was opened.
Granted, there could be a situation where the NPCs expect a fellow NPC to come through the door and the DC would be higher. But, they still get a check.
The problem with your POV is that the surprise is automatic (according the examples I gave and you agreed with).
The only check you appear to want to give is not when combat starts (to see if they are surprised), but before the door is even opened (to see if they notice anything before the PCs can spring their surprise).
Jacen said:
Have to admit that now when thinking examples you gave I hade to go more specifics than I would have cared. But anyway the main point for me was that I udnerstand the rules so that the combat starts when enemy is seen/attacked. I would even allow rogue to make move silent attempts (if the door was opened silently and NPCs didn't see/hear that) to get behind NPC to backstab as a surprise. And after that he would get an another sneak attack as an surprise round standard action.
Hope that clarifies how my mind goes and what is my POV.
No. It does not.
You are stating what you would do, but not why and not how what you would do follows the Suprise round rules.
You are not explaining why the pre-combat action of opening a door does not give the NPCs checks, but the pre-combat action of casting the spell on the other side of an open doorway does. That is what would be helpful. Why are the actions treated differently in your POV? You explained WHAT you would do, but not WHY that follows the rules.
I understand what you are saying, but not why your POV follows the rules. It does not appear to follow the rules at all (except for that one silly example in the DMG that also does not follow the rules).