tpt.el.dmnd.name="OBSI"
tpt.el.dmnd.description="Obsidian! (renamed dmnd)"
tpt.el.dmnd.color=0X111124
tpt.el.dmnd.hconduct = 0
local LAVA = tpt.element("LAVA")
local OBSI = tpt.element("OBSI")

function waterhook(i,x,y,s,n)
--pick one random coord per frame to check, use the for loops for all
local checkx = x+math.random(-1,1)
local checky = y+math.random(-1,1)
--for checkx = x-1,x+1 do
    --for checky = y-1,y+1 do
        local aroundtype = tpt.get_property("type",checkx,checky)
        if aroundtype>0 and aroundtype==LAVA then
            --local otherid = tpt.get_property("id",checkx,checky) --if you want to set some properties of the other element, not needed just for kill
            tpt.set_property("type",OBSI,i)  --change self into something else, tpt.parts[i] is much much laggier than tpt.set_property()
            tpt.delete(checkx,checky) --delete lava particle (the water eats it)
            return true --means it died (skips movement later) more realistic
        end
--  end
--end
end
tpt.element_func(waterhook,tpt.el.watr.id)