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