waila.lua

   1 local hud_item_name = ""
   2
   3
   4 local hud_bg = minetest.localplayer:hud_add({
   5                                 hud_elem_type = "image", -- see HUD element types, default "text"
   6                                 position = {x=0.5, y=0},
   7                                 name = "",    -- default ""
   8                                 scale = {x=2.25, y=2.25}, -- default {x=0,y=0}
   9                                 text = "waila.png",    -- default ""
  10                                 offset = { x = 0, y = 29.25},
  11                                 z_index = 0,
  12                         })
  13
  14 local hud_name = minetest.localplayer:hud_add({
  15                 name = "hud_name",
  16                 position = {x=0.5,y=0},
  17                 hud_elem_type = "text",
  18                 number = 0xFFFFFF,
  19                 alignment = 0,
  20                 offset = { x = 0, y = 17},
  21                 text = "",
  22                 z_index = 1,
  23         })
  24 local hud_node = minetest.localplayer:hud_add({
  25                 name = "hud_node",
  26                 position = {x=0.5,y=0},
  27                 hud_elem_type = "text",
  28                 number = 0xFFFFFF,
  29                 alignment = 0,
  30                 offset = { x = 0, y = 36},
  31                 text = "",
  32                 z_index = 1,
  33         })
  34
  35
  36 local waih_name = minetest.localplayer:hud_add({
  37         name = "hud_name",
  38         position = {x=0.5,y=1},
  39         hud_elem_type = "text",
  40         number = 0xFFFFFF,
  41         alignment = 0,
  42         offset = { x = 0, y = -150},
  43         text = "",
  44         z_index = 1,
  45 })
  46
  47
  48 local pos_min = 10
  49 local pos_max = -150
  50 local waih_timer = 0
  51 local old_item = ""
  52
  53 local function update()
  54         --waila
  55         if minetest.camera then
  56                 local pos = minetest.camera:get_pos()
  57                 local pos2 = vector.add(pos,vector.multiply(minetest.camera:get_look_dir(), 4))
  58                 local ray = minetest.raycast(pos, pos2, false, false)
  59
  60                 local pointed_thing = ray:next()
  61                 if pointed_thing and pointed_thing.under then
  62                         local node = minetest.get_node_or_nil(pointed_thing.under).name
  63                         if hud_item_name ~= node then
  64                                 local def = minetest.get_item_def(node)
  65                                 minetest.localplayer:hud_change(hud_name, "text", def.description)
  66                                 minetest.localplayer:hud_change(hud_node, "text", node)
  67                                 minetest.localplayer:hud_change(hud_bg,   "text", "waila.png")
  68                                 hud_item_name = node
  69                         end
  70                 else
  71                         --make hud invisible
  72                         minetest.localplayer:hud_change(hud_name, "text", "")
  73                         minetest.localplayer:hud_change(hud_node, "text", "")
  74                         minetest.localplayer:hud_change(hud_bg,   "text", "")
  75                         hud_item_name = ""
  76                 end
  77         end
  78
  79
  80         --waih
  81         local item = minetest.localplayer:get_wielded_item():get_name()
  82         if waih_timer > 0 then
  83                 waih_timer = waih_timer - 0.01
  84                 if waih_timer <= 0 then
  85                         waih_timer = 0
  86                         minetest.localplayer:hud_change(waih_name, "text", "")
  87                 end
  88         end
  89         if item ~= old_item then
  90                 waih_timer = 1
  91                 local waih_text = minetest.get_item_def(item).description or item
  92                 minetest.localplayer:hud_change(waih_name, "text", waih_text)
  93         end
  94         old_item = item
  95
  96
  97         minetest.after(0.01, function()
  98                 update()
  99         end)
 100 end
 101
 102 update()