View source for Campaign Map Editing (RTW & M2TW)

Changing or creating a new campaign map is a very similar process in Rome and Medieval II -Total War.

Essential reading for both is *[http://forums.totalwar.org/vb/showthread.php?t=50437 How to make an entirely new campaign map] by Myrddraal.

GrnEyedDvl's '''Introduction to Mapping''' [https://www.twcenter.net/forums/showthread.php?t=123229 Lesson's 1] [https://www.twcenter.net/forums/showthread.php?t=124501 2] & [https://www.twcenter.net/forums/showthread.php?t=125651 3] provides a focus on M2TW mapping.

===Map Files===
Modifications to the map will involve files in <br>
''data/world/maps/base'' <br>
''data/world/maps/campaign/campaign_folder'' <br>
''data/text'' (regions_and_settlements_names_''campaign_name''.txt only)

the files in the base folder may be transferred into your imperial_campaign, barbarian_campaign or provincial_campaign folder (note that provincial campaign folders are not functional in M2TW 1.1).

The most relevant files in those folders are:<br>
'''[[descr_regions.txt]]'''<br>
'''[[descr_terrain.txt]]''' - must include size of map_regions.tga <br>
'''[[descr_strat.txt]]'''<br>
[[Map.rwm| '''map.rwm''']]<br>
'''[[map_climates.tga]]''' - 2x map_regions.tga size plus 1 pixel on height and width* (set climate type in region for strat map and battle map terrain generation)<br>
'''[[map_ground_types.tga]]'''  - 2x map_regions.tga size plus 1 pixel on height and width* (set terrain type on strat map and key for generation of terrain type on battle map)<br>
'''[[map_features.tga]]'''  - same size as map_regions.tga (sets rivers, cliffs and volcano positions)<br>
'''[[map_heights.tga]]'''  - 2x map_regions.tga size plus 1 pixel on height and width* (set terrain topology on battle map)<br> 
'''[[map_heights.hgt]]'''  (if used)<br>
'''[[map_regions.tga]]''' (set regions and their bordery on strat map map) <br>
'''map_roughness.tga''' - size = 2x map_regions.tga (set topology of strat map) <br>
'''map_trade_routes.tga''' - size = same as map_regions.tga (set area which would always reveal on strat map even if it is under fog of war) <br>
:<nowiki>*</nowiki>where map sizes are marked as plus 1 pixel note that the map file is expanded to use the full tga size including the extra pixel.  Do not add a 'blank' pixel around the edge.


Others are:<br>
'''radar_map1.tga''' the small map that appears at bottom left corner of campaign map - Note: making this tga too large can cause a crash at 2/3rds way along loading bar.<br>
'''radar_map2.tga''' the enlarged version of the above - should be twice the size as radar_map1.tga<br>
'''water_surface.tga'''  merely affects the colouring of the sea, its size does not have to be changed with other map sizes.<br>
'''map_FE.tga''' is the default map shown in the faction selection screen if you don't have an in-game map for a faction<br>
'''descr_events.txt''' - can trigger emergence, plague and historic events etc.<br>
'''[[descr_mercenaries.txt]]''' - controls recruitment of mercenaries <br>
'''[[descr_win_conditions.txt]]''' - defines victory conditions <br>
'''descr_disasters.txt''' - text shown when a natural disaster (eg volcano, earthquake) occurs <br>
'''descr_regions_and_settlement_name_lookup.txt''' file not used in later versions of the game.

map_''faction''.tga's; leader_pic_''faction''.tga's; and
description_''faction''.txt files simply give the information seen in the faction selection screen



[[Category:RTW Campaign Map Modding]]
[[Category:M2TW Campaign Map Modding]]