Initial commit

init.lua

@@ -0,0 +1,68 @@
+local player_to_id_text = {}
+
+minetest.register_globalstep(function(dtime)
+    for _, player in ipairs(minetest:get_connected_players()) do
+        -- local player = minetest.get_player_by_name(name) 
+        -- if not player then return end
+        local lookat = get_looking_node(player)
+
+        if lookat then
+            player:hud_change(player_to_id_text[player], "text", describe_node(lookat))
+        else
+            player:hud_change(player_to_id_text[player], "text", "")
+        end
+    end
+end)
+
+minetest.register_on_joinplayer(function(player)
+    player_to_id_text[player] = player:hud_add({
+        hud_elem_type = "text",
+        text = "test",
+        number = 0xffffff,
+        direction = 2,
+        position = {x = 0.5, y = 0.1},
+        alignment = {x = -0.5, y = 0}
+    })
+end)
+
+function get_looking_node(player) 
+    local lookat
+    for i = 0, 10 do -- 10 is the maximum distance you can point to things in creative mode by default
+        local lookvector = -- This variable will store what node we might be looking at
+            vector.add( -- This add function corrects for the players approximate height
+                vector.add( -- This add function applies the camera's position to the look vector
+                    vector.multiply( -- This multiply function adjusts the distance from the camera by the iteration of the loop we're in
+                        player:get_look_dir(), 
+                        i -- Goes from 0 to 10
+                    ), 
+                    player:get_pos()
+                ),
+                vector.new(0, 1.5, 0)
+            )
+        lookat = minetest.get_node_or_nil( -- This actually gets the node we might be looking at
+            lookvector
+        ) or lookat
+        if lookat ~= nil and lookat.name ~= "air" then break else lookat = nil end -- If we *are* looking at something, stop the loop and continue
+    end
+    return lookat
+end
+
+function describe_node(node)
+    local mod, nodename = string.match(node.name, "(.*):(.*)")
+    mod = mod or "?"
+    nodename = nodename or "?"
+    mod = remove_unneeded(capitalize(mod))
+    nodename = remove_unneeded(capitalize(nodename))
+    return
+        "Name: " .. nodename .. "\n" ..
+        "Mod: " .. mod .. "\n" 
+        -- "Description: " .. node.description
+end
+
+function remove_unneeded(str)
+    return str:gsub("[_-]", " ")
+end
+
+function capitalize(str) 
+    return str:gsub("(%l)(%w+)", function(a,b) return string.upper(a)..b end)
+end