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--- preview [2020/04/22 11:50] – vjraymon
+++ preview [2020/10/10 11:54] – created polymorphgames
@@ Line 1: / Line 1: @@
-====== Custom component: how to compute ground or water elevation ======
+====== 1.6 Content Patch Preview: 1.6.21.1009 ======
-Since 1.5, Foundation allows to mod Custom component and links it to a fbx (see Exemple02)
+  * [[changelog:1.6.21.1009|Changelog]]
+  * [[preview:api|Scripting API]]
-The following LUA code computes and returns the global Y elevation of water from a global position:
+  * [[preview:assets|Assets]]
-    function MY_CUSTOM_COMPONENT:computeWaterElevation(_globalPosition)
-        local raycastResult = {}
-        -- Raycast from the _globalPosition + 1000
-        -- to _globalPosition - 1000
-        -- only on objects with a WATER flag
-        local FromPosition = { _globalPosition[1], _globalPosition[2]+1000, _globalPosition[3] }
-        local ToPosition = { _globalPosition[1], _globalPosition[2]-1000, _globalPosition[3] }
-        if not self:getLevel():rayCast(FromPosition,
-                                       ToPosition,
-                                       raycastResult,
-^ OBJECT_FLAG.WATER:toNumber())
-        then
-            MyMod:logWarning("MY_CUSTOM_COMPONENT: Water not found on the vertical of "
-                          .. tostring(_globalPosition))
-            return _globalPosition[2]
-        else
-            return raycastResult["Position"][2]
-        end
-    end
-You can do the same with the ground by replacing OBJECT_FLAG.WATER by OBJECT_FLAG.GROUND
-If the water (or the ground) is not found (for instance when the _globalPosition out of the map) then a warning is edited in the logs, and the code return the Y of the _globalPosition.