Add hud support for replacer and inspector instead of spamming chat and switch replace to shift+RMB to allow repeated replacement by holding keys

hud.lua

@@ -0,0 +1,37 @@
+-- HUD support added by lumberJack 
+
+-- store Hud ids by playername
+replacer.hud_ids = {};
+
+function replacer.set_hud(playername, message)
+    local player = minetest.get_player_by_name(playername)
+    if replacer.hud_ids[playername] ~= nil then
+        local id = replacer.hud_ids[playername]
+        player:hud_remove(id)
+    end
+
+    local id = player:hud_add({
+        hud_elem_type = "text",
+		name = "Replacer",
+		number = 0xFFFFFF,
+		position = {x=0.7, y=1},
+		offset = {x=0, y=-8},
+		text = message,
+		scale = {x=200, y=60},
+		alignment = {x=1, y=-1},
+
+    });
+
+    replacer.hud_ids[playername] = id;
+    
+    minetest.after(12, function()
+        if replacer.hud_ids[playername] == id then
+            player:hud_remove(id)
+        end
+    end);
+end
+
+minetest.register_on_leaveplayer(function(player, timed_out)
+    local name = player:get_player_name()
+    replacer.hud_ids[name] = nil
+end)