Box + water = floating box [Lua or C++]

[andu]

Now it works like that:
if you move NORMAL_BOX into water then it disappears (it drowns).

But I want to make it work like that:
If you move NORMAL_BOX into water then it transforms to FLOATING_BOX. And viceversa, if you move FLOATING_BOX from water to beach or any walking ground then it transforms to NORMAL_BOX.

How to make it?

 

[StreamSide]

maybe I'm wrong but isn't water just a movement script?

 

[andu]

maybe I'm wrong but isn't water just a movement script?

I was looking here. No successs.
Seems water is in items.xml with:

attribute key="type" value="trashholder"

Same with all grounds like lava, swamp etc. Looks like there's function in sources what controls it.
If you have an idea how to do it in lua only give me a tip.

 

[zbizu]

data/events/scripts/player.lua
local grounds = {} -- water
local newItem = {
-- [boxId] = inWaterId,
}
Player:OnMoveItem

if toPosition.x ~= CONTAINER_POSITION then
if isInArray(grounds, Tile(toPosition):getGround():getId()) then
-- item:transformTo(newItem[item:getId()])
end
end

since box in water isn't a container, you're likely to lose its contents when using transformTo (unless you use some xml/otb hack to prevent it)