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Terrain was introduced with version 3.3 of world servers. Terrain data are cached in the folder Terrain. The action script has a few statements for sensing terrain heights and applying them to various functions:
Besides this, terrain can be tested and terrain data can be retrieved directly with the following statements:
| IfHasTerrain statement1 Else statement2 |
tests the world build and whether terrain is enabled: i.e. tests whether there is a visible terrain |
| IfGetTerAlt %a @b statement1 Else statement2 |
tests whether a terrain page has been downloaded at location @b, and if so stores in metres (with double precision float) the value of the terrain altitude at that point in variable %a and executes the statement (an optional else clause can follow). |
| IfGetTerAvAlt %a @b statement1 Else statement2 |
tests whether a terrain page has been downloaded at location @b, and if so stores in metres (with a precision of 1 cm) the value of the terrain altitude for avatar positioning at that point in variable %a and executes the statement (an optional else clause can follow). If the terrain is irregular, this value can be slightly higher than the one obtained with IfGetTerAlt. |
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