# HG changeset patch # User rubidium # Date 2010-08-27 10:42:48 # Node ID 4ac7b843a20373bb5aedec38c94540d18f1bdaa1 # Parent 789c54d0000d2371669bd5f1b2ab6df9953fb365 (svn r20633) -Cleanup: and clarify some bits in the landscape documentation and make them pass the validator again. diff --git a/docs/landscape.html b/docs/landscape.html --- a/docs/landscape.html +++ b/docs/landscape.html @@ -4,64 +4,90 @@ - + OpenTTD Landscape Internals

Landscape

+

+ For a graphical representation of the tile-layout have a look at + Landscape grid page. +

Eight attributes (counting "type_height") hold the informations about a tile.
These attributes are referred to as - "type_height", - "m1", "m2", - "m3", "m4", - "m5", "m6" - and "m7".
+ "type_height", + "m1", "m2", + "m3", "m4", + "m5", "m6" + and "m7".
The most important value is the class of a tile, stored in the upper 4 bits of the type_height attribute. The lower 4 bits are used to encode the height and slope data.

- Special Attribute : m6. There are 4 bits of it that are used accross multiple tile classes
+ Frequently repeating patterns: -

- For a graphical representation of the tile-layout have a look at - Landscape grid page. -

- - The owner of a tile, as frequently associated with attribute m1 bits 4..0, - can be either companies (human or AI) or "Game entities". - They are identified using: - - - - - - -
00..0E  Normal companies
0F  a town owns the tile
10  nobody owns the tile
11  "water" owns the tile
FF  spectator in MP or in scenario editor

OTTD's class-specific periodic tile processing routine is called once every +256 ticks for each tile.

@@ -708,7 +734,7 @@ - Newhouses is the name englobing a newGRF feature developped by TTDPatch devs (mainly Csaboka).
+ Newhouses is the name englobing a newGRF feature developped by TTDPatch devs (mainly Csaboka).
It allows the replacement of the properties as well as the graphics of houses in the game.
To distinguish between the standard behaviour and the newGRF one, HouseID (m4 + m3[6]) is tested for anything above 110.
110 is the count of standard houses. So above 110 means there is a new definition of at least one house @@ -1525,6 +1551,7 @@ 2  water +
  • m5 bits 1..0: direction onto the bridge / out of the tunnel @@ -1569,7 +1596,6 @@
  • m1 bits 6..5 : Water class (sea, canal, river or land)
  • m1 bits 4..0: owner of the object (for lighthouses and transmitters normally 10)
  • m2: index into the array of objects -
  • m3: animation counter
  • m5: tile type:
    • @@ -1600,6 +1626,7 @@
  • m6 bits 7..6 : Possibility of a bridge above, in the direction specified
  • m6 bits 1..0 : Tropic zone definition
    • +
  • m7: animation counter
    • diff --git a/docs/landscape_externals.html b/docs/landscape_externals.html --- a/docs/landscape_externals.html +++ b/docs/landscape_externals.html @@ -4,7 +4,7 @@ - + OpenTTD Landscape externals diff --git a/docs/landscape_grid.html b/docs/landscape_grid.html --- a/docs/landscape_grid.html +++ b/docs/landscape_grid.html @@ -1,7 +1,7 @@ - + OpenTTD Landscape Internals - #2