init.lua

   1 local S = minetest.get_translator("tsm_pyramids")
   2
   3 -- Pyramid width (must be an odd number)
   4 local PYRA_W = 23
   5 -- Pyramid width minus 1
   6 local PYRA_Wm = PYRA_W - 1
   7 -- Half of (Pyramid width minus 1)
   8 local PYRA_Wh = PYRA_Wm / 2
   9 -- Minimum spawn height
  10 local PYRA_MIN_Y = 3
  11
  12 tsm_pyramids = {}
  13
  14 dofile(minetest.get_modpath("tsm_pyramids").."/mummy.lua")
  15 dofile(minetest.get_modpath("tsm_pyramids").."/nodes.lua")
  16 dofile(minetest.get_modpath("tsm_pyramids").."/room.lua")
  17
  18 local mg_name = minetest.get_mapgen_setting("mg_name")
  19
  20 local chest_stuff = {
  21         {name="default:apple", max = 3},
  22         {name="default:steel_ingot", max = 3},
  23         {name="default:copper_ingot", max = 3},
  24         {name="default:gold_ingot", max = 2},
  25         {name="default:diamond", max = 1},
  26         {name="default:pick_steel", max = 1},
  27         {name="default:pick_diamond", max = 1},
  28         {name="default:papyrus", max = 9},
  29 }
  30
  31 if minetest.get_modpath("farming") then
  32         table.insert(chest_stuff, {name="farming:bread", max = 3})
  33         table.insert(chest_stuff, {name="farming:cotton", max = 8})
  34 else
  35         table.insert(chest_stuff, {name="farming:apple", max = 8})
  36         table.insert(chest_stuff, {name="farming:apple", max = 3})
  37 end
  38 if minetest.get_modpath("tnt") then
  39         table.insert(chest_stuff, {name="tnt:gunpowder", max = 6})
  40 else
  41         table.insert(chest_stuff, {name="farming:apple", max = 3})
  42 end
  43
  44 function tsm_pyramids.fill_chest(pos, stype, flood_sand)
  45         local sand = "default:sand"
  46         if stype == "desert_sandstone" or stype == "desert_stone" then
  47                 sand = "default:desert_sand"
  48         end
  49         local n = minetest.get_node(pos)
  50         if n and n.name and n.name == "default:chest" then
  51                 local meta = minetest.get_meta(pos)
  52                 local inv = meta:get_inventory()
  53                 inv:set_size("main", 8*4)
  54                 local stacks = {}
  55                 -- Fill with sand in sand-flooded pyramids
  56                 if flood_sand then
  57                         table.insert(stacks, {name=sand, count = math.random(1,32)})
  58                 end
  59                 -- Add treasures
  60                 if math.random(1,10) >= 7 then
  61                         if minetest.get_modpath("treasurer") ~= nil then
  62                                 stacks = treasurer.select_random_treasures(3,7,9,{"minetool", "food", "crafting_component"})
  63                         else
  64                                 for i=0,2,1 do
  65                                         local stuff = chest_stuff[math.random(1,#chest_stuff)]
  66                                         table.insert(stacks, {name=stuff.name, count = math.random(1,stuff.max)})
  67                                 end
  68                         end
  69                 end
  70                 for s=1,#stacks do
  71                         if not inv:contains_item("main", stacks[s]) then
  72                                 inv:set_stack("main", math.random(1,32), stacks[s])
  73                         end
  74                 end
  75         end
  76 end
  77
  78 local function add_spawner(pos, mummy_offset)
  79         minetest.set_node(pos, {name="tsm_pyramids:spawner_mummy"})
  80         if not minetest.settings:get_bool("only_peaceful_mobs") then tsm_pyramids.spawn_mummy(vector.add(pos, mummy_offset),2) end
  81 end
  82
  83 local function can_replace(pos)
  84         local n = minetest.get_node_or_nil(pos)
  85         if n and n.name and minetest.registered_nodes[n.name] and not minetest.registered_nodes[n.name].walkable then
  86                 return true
  87         elseif not n then
  88                 return true
  89         else
  90                 return false
  91         end
  92 end
  93
  94 local function make_foundation_part(pos, set_to_stone)
  95         local p2 = pos
  96         local cnt = 0
  97         p2.y = p2.y-1
  98         while can_replace(p2)==true do
  99                 cnt = cnt+1
 100                 if cnt > 25 then
 101                         break
 102                 end
 103                 table.insert(set_to_stone, table.copy(p2))
 104                 p2.y = p2.y-1
 105         end
 106 end
 107
 108 local function make_entrance(pos, rot, brick, sand, flood_sand)
 109         local roffset_arr = {
 110                 { x=0, y=0, z=1 }, -- front
 111                 { x=-1, y=0, z=0 }, -- left
 112                 { x=0, y=0, z=-1 }, -- back
 113                 { x=1, y=0, z=0 }, -- right
 114         }
 115         local roffset = roffset_arr[rot + 1]
 116         local way
 117         if rot == 0 then
 118                 way = vector.add(pos, {x=PYRA_Wh, y=0, z=0})
 119         elseif rot == 1 then
 120                 way = vector.add(pos, {x=PYRA_Wm, y=0, z=PYRA_Wh})
 121         elseif rot == 2 then
 122                 way = vector.add(pos, {x=PYRA_Wh, y=0, z=PYRA_Wm})
 123         else
 124                 way = vector.add(pos, {x=0, y=0, z=PYRA_Wh})
 125         end
 126         local max_sand_height = math.random(1,3)
 127         for ie=0,6,1 do
 128                 local sand_height = math.random(1,max_sand_height)
 129                 for iy=2,3,1 do
 130                         -- dig hallway
 131                         local way_dir = vector.add(vector.add(way, {x=0,y=iy,z=0}), vector.multiply(roffset, ie))
 132                         if flood_sand and sand ~= "ignore" and iy <= sand_height and ie >= 3 then
 133                                 minetest.set_node(way_dir, {name=sand})
 134                         else
 135                                 minetest.remove_node(way_dir)
 136                         end
 137                         -- build decoration above entrance
 138                         if ie >=3 and iy == 3 then
 139                                 local deco = {x=way_dir.x, y=way_dir.y+1,z=way_dir.z}
 140                                 minetest.set_node(deco, {name=brick})
 141                                 if rot == 0 or rot == 2 then
 142                                         minetest.set_node(vector.add(deco, {x=-1, y=0, z=0}), {name=brick})
 143                                         minetest.set_node(vector.add(deco, {x=1, y=0, z=0}), {name=brick})
 144                                 else
 145                                         minetest.set_node(vector.add(deco, {x=0, y=0, z=-1}), {name=brick})
 146                                         minetest.set_node(vector.add(deco, {x=0, y=0, z=1}), {name=brick})
 147                                 end
 148                         end
 149                 end
 150         end
 151 end
 152
 153 local function make_pyramid(pos, brick, sandstone, stone, sand)
 154         local set_to_brick = {}
 155         local set_to_sand = {}
 156         local set_to_stone = {}
 157         -- Build pyramid
 158         for iy=0,math.random(10,PYRA_Wh),1 do
 159                 for ix=iy,PYRA_W-1-iy,1 do
 160                         for iz=iy,PYRA_W-1-iy,1 do
 161                                 if iy < 1 then
 162                                         make_foundation_part({x=pos.x+ix,y=pos.y,z=pos.z+iz}, set_to_stone)
 163                                 end
 164                                 table.insert(set_to_brick, {x=pos.x+ix,y=pos.y+iy,z=pos.z+iz})
 165                                 if sand ~= "ignore" then
 166                                         for yy=1,10-iy,1 do
 167                                                 local n = minetest.get_node({x=pos.x+ix,y=pos.y+iy+yy,z=pos.z+iz})
 168                                                 if n and n.name and n.name == stone then
 169                                                         table.insert(set_to_sand, {x=pos.x+ix,y=pos.y+iy+yy,z=pos.z+iz})
 170                                                 end
 171                                         end
 172                                 end
 173                         end
 174                 end
 175         end
 176         minetest.bulk_set_node(set_to_stone , {name=stone})
 177         minetest.bulk_set_node(set_to_brick, {name=brick})
 178         if sand ~= "ignore" then
 179                 minetest.bulk_set_node(set_to_sand, {name=sand})
 180         end
 181 end
 182
 183 local function make(pos, brick, sandstone, stone, sand, ptype, room_id)
 184         local bpos = table.copy(pos)
 185         -- Build pyramid
 186         make_pyramid(bpos, brick, sandstone, stone, sand)
 187
 188         local rot = math.random(0, 3)
 189         -- Build room
 190         local ok, msg, flood_sand = tsm_pyramids.make_room(bpos, ptype, room_id, rot)
 191         -- Place mummy spawner
 192         local r = math.random(1,3)
 193         -- 4 possible spawner positions
 194         local spawner_posses = {
 195                 -- front
 196                 {{x=bpos.x+PYRA_Wh,y=bpos.y+2, z=bpos.z+5}, {x=0, y=0, z=2}},
 197                 -- left
 198                 {{x=bpos.x+PYRA_Wm-5,y=bpos.y+2, z=bpos.z+PYRA_Wh}, {x=-2, y=0, z=0}},
 199                 -- back
 200                 {{x=bpos.x+PYRA_Wh,y=bpos.y+2, z=bpos.z+PYRA_W-5}, {x=0, y=0, z=-2}},
 201                 -- right
 202                 {{x=bpos.x+5,y=bpos.y+2, z=bpos.z+PYRA_Wh}, {x=2, y=0, z=0}},
 203         }
 204         -- Delete the spawner position in which the entrance will be placed
 205         table.remove(spawner_posses, (rot % 4) + 1)
 206         add_spawner(spawner_posses[r][1], spawner_posses[r][2])
 207         -- Build entrance
 208         make_entrance(bpos, rot, brick, sand, flood_sand)
 209         -- Done
 210         minetest.log("action", "[tsm_pyramids] Created pyramid at "..minetest.pos_to_string(bpos)..".")
 211         return ok, msg
 212 end
 213
 214 local perl1 = {SEED1 = 9130, OCTA1 = 3, PERS1 = 0.5, SCAL1 = 250} -- Values should match minetest mapgen V6 desert noise.
 215 local perlin1 -- perlin noise buffer
 216
 217 local function hlp_fnct(pos, name)
 218         local n = minetest.get_node_or_nil(pos)
 219         if n and n.name and n.name == name then
 220                 return true
 221         else
 222                 return false
 223         end
 224 end
 225 local function ground(pos, old)
 226         local p2 = table.copy(pos)
 227         while hlp_fnct(p2, "air") do
 228                 p2.y = p2.y -1
 229         end
 230         if p2.y < old.y then
 231                 return {x=old.x, y=p2.y, z=old.z}
 232         else
 233                 return old
 234         end
 235 end
 236
 237 -- Attempt to generate a pyramid in the generated area.
 238 -- Up to one pyramid per mapchunk.
 239 minetest.register_on_generated(function(minp, maxp, seed)
 240         if maxp.y < PYRA_MIN_Y then return end
 241
 242         -- TODO: Use Minetests pseudo-random tools
 243         math.randomseed(seed)
 244
 245         if not perlin1 then
 246                 perlin1 = minetest.get_perlin(perl1.SEED1, perl1.OCTA1, perl1.PERS1, perl1.SCAL1)
 247         end
 248         --[[ Make sure the pyramid doesn't bleed outside of maxp,
 249         so it doesn't get placed incompletely by the mapgen.
 250         This creates a bias somewhat, as this means there are some coordinates in
 251         which pyramids cannot spawn. But it's still better to have broken pyramids.
 252         ]]
 253         local limit = function(pos, maxp)
 254                 pos.x = math.min(pos.x, maxp.x - PYRA_W+1)
 255                 pos.y = math.min(pos.y, maxp.y - PYRA_Wh)
 256                 pos.z = math.min(pos.z, maxp.z - PYRA_W+1)
 257                 return pos
 258         end
 259         local noise1 = perlin1:get_2d({x=minp.x,y=minp.y})
 260
 261         if noise1 > 0.25 or noise1 < -0.26 then
 262                 -- Need a bit of luck to place a pyramid
 263                 if math.random(0,10) > 7 then
 264                         minetest.log("verbose", "[tsm_pyramids] Pyramid not placed, bad dice roll. minp="..minetest.pos_to_string(minp))
 265                         return
 266                 end
 267
 268                 local mpos = {x=math.random(minp.x,maxp.x), y=math.random(minp.y,maxp.y), z=math.random(minp.z,maxp.z)}
 269
 270                 local sands = {"default:sand", "default:desert_sand", "default:desert_stone"}
 271                 local p2
 272                 local psand = {}
 273                 local sand
 274                 local cnt = 0
 275                 local sand_cnt_max = 0
 276                 local sand_cnt_max_id
 277                 -- Look for sand or desert stone to place the pyramid on
 278                 for s=1, #sands do
 279                         cnt = 0
 280                         local sand_cnt = 0
 281                         sand = sands[s]
 282                         psand[s] = minetest.find_node_near(mpos, 25, sand)
 283                         while cnt < 5 do
 284                                 cnt = cnt+1
 285                                 mpos = {x=math.random(minp.x,maxp.x), y=math.random(minp.y,maxp.y), z=math.random(minp.z,maxp.z)}
 286                                 local spos = minetest.find_node_near(mpos, 25, sand)
 287                                 if spos ~= nil then
 288                                         sand_cnt = sand_cnt + 1
 289                                         if psand[s] == nil then
 290                                                 psand[s] = spos
 291                                         end
 292                                 end
 293                                 if sand_cnt > sand_cnt_max then
 294                                         sand_cnt_max = sand_cnt
 295                                         sand_cnt_max_id = s
 296                                         p2 = psand[s]
 297                                 end
 298                         end
 299                 end
 300                 if p2 == nil then
 301                         minetest.log("verbose", "[tsm_pyramids] Pyramid not placed, no suitable surface. minp="..minetest.pos_to_string(minp))
 302                         return
 303                 end
 304                 -- Select the material type by the most prominent node type
 305                 -- E.g. if desert sand is most prominent, we place a desert sandstone pyramid
 306                 if sand_cnt_max_id then
 307                         sand = sands[sand_cnt_max_id]
 308                 end
 309                 if p2.y < PYRA_MIN_Y then
 310                         minetest.log("info", "[tsm_pyramids] Pyramid not placed, too deep. p2="..minetest.pos_to_string(p2))
 311                         return
 312                 end
 313                 -- Now sink the pyramid until each corner of it is no longer floating in mid-air
 314                 p2 = limit(p2, maxp)
 315                 local oposses = {
 316                         {x=p2.x,y=p2.y-1,z=p2.z},
 317                         {x=p2.x+PYRA_Wm,y=p2.y-1,z=p2.z+PYRA_Wm},
 318                         {x=p2.x+PYRA_Wm,y=p2.y-1,z=p2.z},
 319                         {x=p2.x,y=p2.y-1,z=p2.z+PYRA_Wm},
 320                 }
 321                 for o=1, #oposses do
 322                         local opos = oposses[o]
 323                         local n = minetest.get_node_or_nil(opos)
 324                         if n and n.name and n.name == "air" then
 325                                 local old = table.copy(p2)
 326                                 p2 = ground(opos, p2)
 327                         end
 328                 end
 329                 -- Random bonus sinking
 330                 p2.y = math.max(p2.y - math.random(0,3), PYRA_MIN_Y)
 331
 332                 -- Bad luck, we have hit the chunk border!
 333                 if p2.y < minp.y then
 334                         minetest.log("info", "[tsm_pyramids] Pyramid not placed, sunken too much. p2="..minetest.pos_to_string(p2))
 335                         return
 336                 end
 337
 338                 -- Make sure the pyramid is not near a "killer" node, like water
 339                 local middle = vector.add(p2, {x=PYRA_Wh, y=0, z=PYRA_Wh})
 340                 if minetest.find_node_near(p2, 5, {"default:water_source"}) ~= nil or
 341                                 minetest.find_node_near(vector.add(p2, {x=PYRA_W, y=0, z=0}), 5, {"default:water_source"}) ~= nil or
 342                                 minetest.find_node_near(vector.add(p2, {x=0, y=0, z=PYRA_W}), 5, {"default:water_source"}) ~= nil or
 343                                 minetest.find_node_near(vector.add(p2, {x=PYRA_W, y=0, z=PYRA_W}), 5, {"default:water_source"}) ~= nil or
 344
 345                                 minetest.find_node_near(middle, PYRA_W, {"default:dirt_with_grass"}) ~= nil or
 346                                 minetest.find_node_near(middle, 52, {"default:sandstonebrick", "default:desert_sandstone_brick", "default:desert_stonebrick"}) ~= nil then
 347                         minetest.log("info", "[tsm_pyramids] Pyramid not placed, inappropriate node nearby. p2="..minetest.pos_to_string(p2))
 348                         return
 349                 end
 350
 351                 -- Bonus chance to spawn a sandstone pyramid in v6 desert because otherwise they would be too rare in v6
 352                 if (mg_name == "v6" and sand == "default:desert_sand" and math.random(1, 2) == 1) then
 353                         sand = "default:sand"
 354                 end
 355
 356                 -- Desert stone pyramids only generate in areas with almost no sand
 357                 if sand == "default:desert_stone" then
 358                         local nodes = minetest.find_nodes_in_area(vector.add(p2, {x=-1, y=-2, z=-1}), vector.add(p2, {x=PYRA_W+1, y=PYRA_Wh, z=PYRA_W+1}), {"group:sand"})
 359                         if #nodes > 5 then
 360                                 sand = "default:desert_sand"
 361                         end
 362                 end
 363
 364                 -- Generate the pyramid!
 365                 if sand == "default:desert_sand" then
 366                         -- Desert sandstone pyramid
 367                         make(p2, "default:desert_sandstone_brick", "default:desert_sandstone", "default:desert_stone", "default:desert_sand", "desert_sandstone")
 368                 elseif sand == "default:sand" then
 369                         -- Sandstone pyramid
 370                         make(p2, "default:sandstonebrick", "default:sandstone", "default:sandstone", "default:sand", "sandstone")
 371                 else
 372                         -- Desert stone pyramid
 373                         make(p2, "default:desert_stonebrick", "default:desert_stone_block", "default:desert_stone", "ignore", "desert_stone")
 374                 end
 375         end
 376 end)
 377
 378 -- Add backwards-compability for nodes from the original pyramids mod
 379 if minetest.get_modpath("pyramids") == nil then
 380         -- Nodes
 381         minetest.register_alias("pyramids:trap", "tsm_pyramids:trap")
 382         minetest.register_alias("pyramids:trap_2", "tsm_pyramids:trap_2")
 383         minetest.register_alias("pyramids:deco_stone1", "tsm_pyramids:deco_stone1")
 384         minetest.register_alias("pyramids:deco_stone2", "tsm_pyramids:deco_stone2")
 385         minetest.register_alias("pyramids:deco_stone3", "tsm_pyramids:deco_stone3")
 386         minetest.register_alias("pyramids:spawner_mummy", "tsm_pyramids:spawner_mummy")
 387 end
 388
 389 minetest.register_chatcommand("spawnpyramid", {
 390         description = S("Generate a pyramid"),
 391                 params = S("[<room_type>]"),
 392                 privs = { server = true },
 393                 func = function(name, param)
 394                         local player = minetest.get_player_by_name(name)
 395                         if not player then
 396                                 return false, S("No player.")
 397                         end
 398                         local pos = player:get_pos()
 399                         pos = vector.round(pos)
 400                         local s = math.random(1,3)
 401                         local r = tonumber(param)
 402                         local room_id
 403                         if r then
 404                                 room_id = r
 405                         end
 406                         local ok, msg
 407                         pos = vector.add(pos, {x=-PYRA_Wh, y=-1, z=0})
 408                         if s == 1 then
 409                                 -- Sandstone
 410                                 ok, msg = make(pos, "default:sandstonebrick", "default:sandstone", "default:sandstone", "default:sand", "sandstone", room_id)
 411                         elseif s == 2 then
 412                                 -- Desert sandstone
 413                                 ok, msg = make(pos, "default:desert_sandstone_brick", "default:desert_sandstone", "default:desert_stone", "default:desert_sand", "desert_sandstone", room_id)
 414                         else
 415                                 -- Desert stone
 416                                 ok, msg = make(pos, "default:desert_stonebrick", "default:desert_stone_block", "default:desert_stone", "ignore", "desert_stone", room_id)
 417                         end
 418                         if ok then
 419                                 return true, S("Pyramid generated at @1.", minetest.pos_to_string(pos))
 420                         else
 421                                 return false, msg
 422                         end
 423                 end,
 424         }
 425 )