add crosshair for mobile devices

mods/addcrosshair/depends.txt

@@ -0,0 +1 @@
+default

mods/addcrosshair/init.lua

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+local function setflags(player)
+	player:hud_set_flags({crosshair=false})
+end
+minetest.register_on_joinplayer(function(player)
+
+	local hud = player:hud_add({
+		hud_elem_type = "image",
+		position  = {x = .5, y = .5},
+		offset    = {x = 0, y = 0},
+		text      = "crosshair.png",
+		scale     = { x = 1, y = 1},
+		alignment = { x = 0, y = 0 },
+	})
+	minetest.after(0, setflags, player)
+
+end)