ab56ffb380
Useful for room shapes which cannot be handled by standard visibility checks. Normally this can be addressed with additional rooms and doorways, but sometimes a room is required to be a complex shape (for example, to accomodate animated static geometry). These instances should be few and far between, so leaving this as an opt-in feature that can be used during level authoring.
1.4 KiB
@doorway
A connection between two rooms. Used for culling and broad phase collision purposes, to determine room visibility and movement of dynamic objects from one room to another.
Name structure
@doorway
Notes
Doorways connect their nearest two rooms, and can be open or closed (i.e., when associated with a door). If a doorway is closed, its rooms are not considered connected at that point (other open doorways count). Only the player's current room and visible connected rooms are considered for rendering.
Doorway visibility checks do not consider objects which may be covering a
doorway - just that it is within the bounds of the previous doorway from the
camera's point of view (or within the bounds of the camera itself, if there is
no previous doorway). To block visibility in these cases, either use an
additional room such that looking through all necessary doorways at once is
impossible or set the room's can_see argument.
Passing through an open doorway updates an object's room index, allowing it to collide with other objects in the entered room while ignoring those in the exited room.
Doorways do not need to be linked to a physical door in the world. For example, they are used for windows so the room on the other side is visible when looking through. They can also be used to break up large physical spaces into smaller chunks.
At most one doorway can connect two given rooms.