mods/minecart/init.lua

   1 local pool = {}
   2
   3 local dirs = {
   4         {x= 1,y= 0,z= 0},
   5         {x=-1,y= 0,z= 0},
   6
   7         {x= 1,y= 1,z= 0},
   8         {x=-1,y= 1,z= 0},
   9
  10         {x= 1,y=-1,z= 0},
  11         {x=-1,y=-1,z= 0},
  12
  13         {x= 0,y= 0,z= 1},
  14         {x= 0,y= 0,z=-1},
  15
  16         {x= 0,y= 1,z= 1},
  17         {x= 0,y= 1,z=-1},
  18
  19         {x= 0,y=-1,z= 1},
  20         {x= 0,y=-1,z=-1},
  21 }
  22
  23 local axis_order = {
  24
  25 }
  26 local function data_injection(pos,data)
  27         if data then
  28                 pool[minetest.hash_node_position(pos)] = true
  29         else
  30                 pool[minetest.hash_node_position(pos)] = nil
  31         end
  32 end
  33
  34
  35 local function create_axis(pos)
  36         local possible_dirs = {}
  37         for _,dir in pairs(dirs) do
  38                 local pos2 = vector.add(pos,dir)
  39                 if pool[minetest.hash_node_position(pos2)] then
  40                         table.insert(possible_dirs,dir)
  41                 end
  42         end
  43         return(possible_dirs)
  44 end
  45
  46
  47
  48 local minecart = {}
  49
  50 minecart.on_step = function(self,dtime)
  51         local pos = vector.round(self.object:get_pos())
  52         if not self.axis_lock then
  53                 local possible_dirs = create_axis(pos)
  54                 for _,dir in pairs(possible_dirs) do
  55                         if dir.x ~=0 then
  56                                 self.axis_lock = "x"
  57                                 break
  58                         elseif dir.z ~= 0 then
  59                                 self.axis_lock = "z"
  60                                 break
  61                         end
  62                 end
  63         else
  64                 print(self.axis_lock)
  65         end
  66 end
  67
  68 minecart.on_rightclick = function(self,clicker)
  69 end
  70
  71 --get old data
  72 minecart.on_activate = function(self,staticdata, dtime_s)
  73         self.object:set_armor_groups({immortal=1})
  74         if string.sub(staticdata, 1, string.len("return")) ~= "return" then
  75                 return
  76         end
  77         local data = minetest.deserialize(staticdata)
  78         if type(data) ~= "table" then
  79                 return
  80         end
  81
  82 end
  83
  84 minecart.get_staticdata = function(self)
  85         return minetest.serialize({
  86         })
  87 end
  88
  89
  90
  91 minecart.initial_properties = {
  92         physical = false, -- otherwise going uphill breaks
  93         collisionbox = {-0.4, -0.5, -0.4, 0.4, 0.45, 0.4},--{-0.5, -0.4, -0.5, 0.5, 0.25, 0.5},
  94         visual = "mesh",
  95         mesh = "minecart.x",
  96         visual_size = {x=1, y=1},
  97         textures = {"minecart.png"},
  98 }
  99
 100
 101 minecart.on_punch = function(self,puncher, time_from_last_punch, tool_capabilities, dir, damage)
 102         --local obj = minetest.add_item(self.object:getpos(), "minecart:minecart")
 103         --self.object:remove()
 104 end
 105
 106
 107
 108 minetest.register_entity("minecart:minecart", minecart)
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121 minetest.register_craftitem("minecart:minecart", {
 122         description = "Minecart",
 123         inventory_image = "minecartitem.png",
 124         wield_image = "minecartitem.png",
 125         on_place = function(itemstack, placer, pointed_thing)
 126                 if not pointed_thing.type == "node" then
 127                         return
 128                 end
 129
 130                 local sneak = placer:get_player_control().sneak
 131                 local noddef = minetest.registered_nodes[minetest.get_node(pointed_thing.under).name]
 132                 if not sneak and noddef.on_rightclick then
 133                         minetest.item_place(itemstack, placer, pointed_thing)
 134                         return
 135                 end
 136
 137                 if minetest.get_item_group(minetest.get_node(pointed_thing.under).name, "rail")>0 then
 138                         minetest.add_entity(pointed_thing.under, "minecart:minecart")
 139                 else
 140                         return
 141                 end
 142
 143                 itemstack:take_item()
 144
 145                 return itemstack
 146         end,
 147 })
 148
 149 minetest.register_craft({
 150         output = "minecart:minecart",
 151         recipe = {
 152                 {"main:iron", "", "main:iron"},
 153                 {"main:iron", "main:iron", "main:iron"},
 154         },
 155 })
 156
 157
 158
 159
 160
 161 minetest.register_node("minecart:rail",{
 162         description = "Rail",
 163         wield_image = "rail.png",
 164         tiles = {
 165                 "rail.png", "railcurve.png",
 166                 "railt.png", "railcross.png"
 167         },
 168         drawtype = "raillike",
 169         paramtype = "light",
 170         sunlight_propagates = true,
 171         is_ground_content = false,
 172         walkable = false,
 173         node_placement_prediction = "",
 174         selection_box = {
 175                 type = "fixed",
 176                 fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
 177         },
 178         sounds = main.stoneSound(),
 179         after_place_node = function(pos)
 180                 data_injection(pos,true)
 181         end,
 182         after_destruct = function(pos)
 183                 data_injection(pos)
 184         end,
 185         groups={stone=1,wood=1,rail=1,attached_node=1},
 186 })
 187
 188
 189 minetest.register_lbm({
 190         name = "minecart:rail",
 191         nodenames = {"minecart:rail"},
 192         run_at_every_load = true,
 193         action = function(pos)
 194                 data_injection(pos,true)
 195                 print("buildin dat cash")
 196         end,
 197 })
 198
 199 minetest.register_craft({
 200         output = "minecart:rail 32",
 201         recipe = {
 202                 {"main:iron","","main:iron"},
 203                 {"main:iron","main:stick","main:iron"},
 204                 {"main:iron","","main:iron"}
 205         }
 206 })