mods/screwdriver/init.lua

   1
   2 local mode_text = {
   3         {"Change rotation, Don't change axisdir."},
   4         {"Keep choosen face in front then rotate it."},
   5         {"Change axis dir, Reset rotation."},
   6         {"Bring top in front then rotate it."},
   7 }
   8
   9 local opposite_faces = {
  10         [0] = 5,
  11         [1] = 2,
  12         [2] = 1,
  13         [3] = 4,
  14         [4] = 3,
  15         [5] = 0,
  16 }
  17
  18 local function screwdriver_setmode(user,itemstack)
  19         local player_name = user:get_player_name()
  20         local item = itemstack:to_table()
  21         local mode = tonumber(itemstack:get_metadata())
  22         if not mode then
  23                 minetest.chat_send_player(player_name, "Hold shift and use to change screwdriwer modes.")
  24                 mode = 0
  25         end
  26         mode = mode + 1
  27         if mode == 5 then
  28                 mode = 1
  29         end
  30         minetest.chat_send_player(player_name, "Screwdriver mode : "..mode.." - "..mode_text[mode][1] )
  31         itemstack:set_name("screwdriver:screwdriver"..mode)
  32         itemstack:set_metadata(mode)
  33         return itemstack
  34 end
  35
  36 local function get_node_face(pointed_thing)
  37         local ax, ay, az = pointed_thing.above.x, pointed_thing.above.y, pointed_thing.above.z
  38         local ux, uy, uz = pointed_thing.under.x, pointed_thing.under.y, pointed_thing.under.z
  39         if     ay > uy then return 0 -- Top
  40         elseif az > uz then return 1 -- Z+ side
  41         elseif az < uz then return 2 -- Z- side
  42         elseif ax > ux then return 3 -- X+ side
  43         elseif ax < ux then return 4 -- X- side
  44         elseif ay < uy then return 5 -- Bottom
  45         else
  46                 error("pointed_thing.above and under are the same!")
  47         end
  48 end
  49
  50 local function nextrange(x, max)
  51         x = x + 1
  52         if x > max then
  53                 x = 0
  54         end
  55         return x
  56 end
  57
  58 local function screwdriver_handler(itemstack, user, pointed_thing)
  59         if pointed_thing.type ~= "node" then
  60                 return
  61         end
  62         local pos = pointed_thing.under
  63         if minetest.is_protected(pos, user:get_player_name()) then
  64                 minetest.record_protection_violation(pos, user:get_player_name())
  65                 return
  66         end
  67         local keys = user:get_player_control()
  68         local player_name = user:get_player_name()
  69         local mode = tonumber(itemstack:get_metadata())
  70         if not mode or keys["sneak"] == true then
  71                 return screwdriver_setmode(user, itemstack)
  72         end
  73         local node = minetest.get_node(pos)
  74         local node_name = node.name
  75         local ndef = minetest.registered_nodes[node.name]
  76         if ndef.paramtype2 == "facedir" then
  77                 if ndef.drawtype == "nodebox" and ndef.node_box.type ~= "fixed" then
  78                         return
  79                 end
  80                 if node.param2 == nil then
  81                         return
  82                 end
  83                 -- Get ready to set the param2
  84                 local n = node.param2
  85                 local axisdir = math.floor(n / 4)
  86                 local rotation = n - axisdir * 4
  87                 if mode == 1 then
  88                         n = axisdir * 4 + nextrange(rotation, 3)
  89                 elseif mode == 2 then
  90                         -- If you are pointing at the axisdir face or the
  91                         -- opposite one then you can just rotate the node.
  92                         -- Otherwise change the axisdir, avoiding the facing
  93                         -- and opposite axes.
  94                         local face = get_node_face(pointed_thing)
  95                         if axisdir == face or axisdir == opposite_faces[face] then
  96                                 n = axisdir * 4 + nextrange(rotation, 3)
  97                         else
  98                                 axisdir = nextrange(axisdir, 5)
  99                                 -- This is repeated because switching from the face
 100                                 -- can move to to the opposite and vice-versa
 101                                 if axisdir == face or axisdir == opposite_faces[face] then
 102                                         axisdir = nextrange(axisdir, 5)
 103                                 end
 104                                 if axisdir == face or axisdir == opposite_faces[face] then
 105                                         axisdir = nextrange(axisdir, 5)
 106                                 end
 107                                 n = axisdir * 4
 108                         end
 109                 elseif mode == 3 then
 110                         n = nextrange(axisdir, 5) * 4
 111                 elseif mode == 4 then
 112                         local face = get_node_face(pointed_thing)
 113                         if axisdir == face then
 114                                 n = axisdir * 4 + nextrange(rotation, 3)
 115                         else
 116                                 n = face * 4
 117                         end
 118                 end
 119                 --print (dump(axisdir..", "..rotation))
 120                 node.param2 = n
 121                 minetest.swap_node(pos, node)
 122                 local item_wear = tonumber(itemstack:get_wear())
 123                 item_wear = item_wear + 327
 124                 if item_wear > 65535 then
 125                         itemstack:clear()
 126                         return itemstack
 127                 end
 128                 itemstack:set_wear(item_wear)
 129                 return itemstack
 130         end
 131 end
 132
 133 minetest.register_craft({
 134         output = "screwdriver:screwdriver",
 135         recipe = {
 136                 {"default:steel_ingot"},
 137                 {"group:stick"}
 138         }
 139 })
 140
 141 minetest.register_tool("screwdriver:screwdriver", {
 142         description = "Screwdriver",
 143         inventory_image = "screwdriver.png",
 144         on_use = function(itemstack, user, pointed_thing)
 145                 screwdriver_handler(itemstack, user, pointed_thing)
 146                 return itemstack
 147         end,
 148 })
 149
 150 for i = 1, 4 do
 151         minetest.register_tool("screwdriver:screwdriver"..i, {
 152                 description = "Screwdriver in Mode "..i,
 153                 inventory_image = "screwdriver.png^tool_mode"..i..".png",
 154                 wield_image = "screwdriver.png",
 155                 groups = {not_in_creative_inventory=1},
 156                 on_use = function(itemstack, user, pointed_thing)
 157                         screwdriver_handler(itemstack, user, pointed_thing)
 158                         return itemstack
 159                 end,
 160         })
 161 end
 162