mods/player_mechanics/flowing.lua

   1 local
   2 minetest,vector,math,pairs
   3 =
   4 minetest,vector,math,pairs
   5
   6 local name
   7 local pos
   8 local node
   9 local node_above
  10 local goalx
  11 local goalz
  12 local currentvel
  13 local level
  14 local level2
  15 local nodename
  16 local acceleration
  17 found = false
  18 local function flow(player)
  19     name = player:get_player_name()
  20     pos = player:get_pos()
  21     pos.y = pos.y + player:get_properties().collisionbox[2]
  22     pos = vector.round(pos)
  23     node = minetest.get_node(pos).name
  24     node_above = minetest.get_node(vector.new(pos.x,pos.y+1,pos.z)).name
  25     goalx = 0
  26     goalz = 0
  27     found = false
  28     if node == "main:waterflow" then
  29         currentvel = player:get_player_velocity()
  30         level = minetest.get_node_level(pos)
  31         for x = -1,1 do
  32             for z = -1,1 do
  33                 if found == false then
  34                     nodename = minetest.get_node(vector.new(pos.x+x,pos.y,pos.z+z)).name
  35                     level2 = minetest.get_node_level(vector.new(pos.x+x,pos.y,pos.z+z))
  36                     if level2 > level and nodename == "main:waterflow" or nodename == "main:water" then
  37                         goalx = -x
  38                         goalz = -z
  39                         --diagonal flow
  40                         if goalx ~= 0 and goalz ~= 0 then
  41                             found = true
  42                         end
  43                     end
  44                 end
  45             end
  46         end
  47         --only add velocity if there is one
  48         --else this stops the player
  49         if goalx ~= 0 and goalz ~= 0 then
  50             acceleration = vector.new(goalx/3,0,goalz/3)
  51             player:add_player_velocity(acceleration)
  52         elseif goalx ~= 0 or goalz ~= 0 then
  53             acceleration = vector.new(goalx/2.25,0,goalz/2.25)
  54             player:add_player_velocity(acceleration)
  55         end
  56     end
  57 end
  58
  59 local legs
  60 local flowing
  61 minetest.register_globalstep(function()
  62     for _,player in ipairs(minetest.get_connected_players()) do
  63         legs = minetest.get_item_group(get_player_legs_env(player),"water") > 0
  64         if legs then
  65             flow(player)
  66         end
  67     end
  68 end)