draw_move_node_shadow = function()
	love.graphics.rectangle('fill',
		vx(Move.node.pos.x-Move.node.hs.x),
		vy(Move.node.pos.y-Move.node.hs.y),
		scale(Move.node.hs.x*2),
		scale(Move.node.hs.y*2))
end

dist = function(x1,y1, x2,y2)
	return ((x2-x1)^2+(y2-y1)^2)^0.5
end

		def.pos.x = def.x + def.hs.x
		def.pos.y = def.y + def.hs.y
		if def == target then
			def.hs.x = def.hs.x + 50
			def.hs.y = def.hs.y + math.max(30, math.min(def.h/3, 200))
		end

	end
	-- some hacky stuff outside of LuaML
	if Move then
		-- a hint for original location of node, to help put it back
		App.color{r=0.8, g=0.8, b=0.8}
		love.graphics.rectangle('fill', vx(Move.oldx), vy(Move.oldy), scale(Move.node.w), scale(Move.node.h))
		-- a hint about the amount of padding we're going to clear when we set the node down
		draw_move_node_shadow()

		Move.node.pos.x = Move.node.x+Move.node.w/2
		Move.node.pos.y = Move.node.y+Move.node.h/2+30

		-- resolve collisions unless I'm trying to put it back carefully where I started.
		if dist(vx(Move.node.x), vy(Move.node.y), vx(Move.oldx), vy(Move.oldy)) > 10 then
			Move.node.pos.x = Move.node.x+Move.node.hs.x
			Move.node.pos.y = Move.node.y+Move.node.hs.y
			move_others(Move.node)
		end

		Move = {xoff=App.mouse_x()-vx(node.x), yoff=App.mouse_y()-vy(node.y), node=node, oldx=node.x, oldy=node.y}

end