VariationalAction2/Canals
From GRFSpecs
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Introduction
Variables
| Variable | Version | Size | Content | |
|---|---|---|---|---|
| 80 |  0.6  2.5
|
B | Height above ground, top parts of locks have the same height as the lower parts. Note: this returns height in increments of 1 (and not 8) | |
| 81 | 0.6 2.5
|
B | Terrain type: 0 normal, 1 desert, 2 rainforest, 4 on or above snowline | |
| 82 | 1.4 2.5
|
B | Dike map | |
| 83 | 0.6 2.6
|
B | Random byte for plain canals and river tiles, otherwise zero (under bridges as example, or old savegames) |
Variational Action 2 are available for IDs 0/1/2/5/6 (Watercliffs, Locks, Dikes, River Slopes, River waterside)
Description
Dike map (0x82)
The variable returns the sides and edges at which the water has a dike, i.e. no connection to water. The variable is a bitset where single bits indicate a dike towards the eight adjacent tiles:
| Bit | Value | Direction |
|---|---|---|
| 0 | 1 | North-East |
| 1 | 2 | South-East |
| 2 | 4 | South-West |
| 3 | 8 | North-West |
| 4 | 16 | East |
| 5 | 32 | South |
| 6 | 64 | West |
| 7 | 128 | North |
In TTDPatch this variable is for internal use only.
