Introduction
What You Will Need
Copyright
Changes from Release 2.0
Glossary
Doom, Doom2
IWAD, PWAD, WAD
Editor
Level
Void Space
Vertex (plural: Vertices)
Linedef
Sidedef
Sector
Texture
X-offset and Y-offset
Pegged/Unpegged
Flats
Tags
Things
Sprites
Nodes, Node-tree, BSP-tree
Blockmap, Ssectors, Segs
Reject, Reject Table, Reject Map

Style Guide
Theme
Storyline
Realism
Textures
Structures
Dimensions
Lighting
Monsters
Other Things:
   Weapons, Health, Ammo, Armor, Power-ups
Traps, Puzzles, and Secrets

Appendix A: Common Errors
Hall of Mirrors
The Medusa Effect
Tutti-frutti - Confetti - Pink Bug
Long Wall Error
Visplane Error
Moiré, aka Flash of Black Error
Linedefs that Cross or Coincide
Vertices that Cross or Coincide
Wall Pegging
Monster/Two-Sided Linedef Glut
Monsters Too Close to Walls
   Other Monsters/Things
Missing Player Starts
Floor/Ceiling Mismatch
Unbeatable Traps
Required Items in Secrets
Dead-End Levels
Texture Misalignment

Appendix B: Thing Dimensions
Appendix C: Action Linedef Types

Some Notes on Action Linedef Usage

Appendix D: Doom Textures
Appendix E: Doom2 Textures
Appendix F: Utilities and Documents

Editors
Node Builders
Reject Table Builders
TCount
Example WADs
Documents

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