Subsector

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For more information on this article, visit the Subsector page on the Doom Wiki.

Sub-sectors are to segs what sectors are to linedefs; they are the 'space' between segs. The most relevant information on them can be found on the NODES page. A subsector with X segs starting at Y will have the lowest numbered seg at Y and the highest numbered seg at Y + X. The segs in ssector 0 should start with seg 0 through Y, ie 0, 1, ... , Y - 1, Y. Sub-sector 1 will have segs starting at Y and going to Y + 1, Y + 2, ... Z - 1, Z where Z is the total number of segs (for ssector 1) + Y.


Specification

Bytes Data type Description
0-1 Short Number of segments in this sub-sector
2-3 Short First segment in this sub-Sector