fire_handling.lua

   1 local on_fire = 0
   2 local fire_id = nil
   3 local fire_animation_timer = 0
   4 local fire_animation_tile = 0
   5 --receive the server states
   6 minetest.register_on_modchannel_message(function(channel_name, sender, message)
   7         if channel_name == name..":fire_state" then
   8         on_fire = tonumber(message)
   9         end
  10 end)
  11
  12 minetest.register_globalstep(function(dtime)
  13     if on_fire == 0 then
  14         if fire_id then
  15             minetest.localplayer:hud_remove(fire_id)
  16             fire_id = nil
  17         end
  18     elseif on_fire == 1 then
  19         if fire_id == nil then
  20             fire_id = minetest.localplayer:hud_add({
  21                                 hud_elem_type = "image", -- see HUD element types, default "text"
  22                                 position = {x=0.5, y=0.5},
  23                                 name = "",    -- default ""
  24                                 scale = {x=-100, y=-100}, -- default {x=0,y=0}
  25                                 text = "fire.png^[opacity:180^[verticalframe:8:"..fire_animation_tile,
  26             })
  27         else
  28             fire_animation_timer = fire_animation_timer + dtime
  29             if fire_animation_timer >= 0.05 then
  30                 fire_animation_timer = 0
  31                 fire_animation_tile = fire_animation_tile + 1
  32                 if fire_animation_tile > 7 then
  33                     fire_animation_tile = 0
  34                 end
  35                 minetest.localplayer:hud_change(fire_id, "text", "fire.png^[opacity:180^[verticalframe:8:"..fire_animation_tile)
  36             end
  37         end
  38     end
  39 end)