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                         end
 166                 end
 167         end
 168         minetest.bulk_set_node(set_to_stone , {name=stone})
 169         minetest.bulk_set_node(set_to_brick, {name=brick})
 170         if sand ~= "ignore" then
 171                 minetest.bulk_set_node(set_to_sand, {name=sand})
 172         end
 173 end
 174
 175 local function make(pos, brick, sandstone, stone, sand, ptype, room_id)
 176         local bpos = table.copy(pos)
 177         -- Build pyramid
 178         make_pyramid(bpos, brick, sandstone, stone, sand)
 179
 180         local rot = math.random(0, 3)
 181         -- Build room
 182         local ok, msg, flood_sand = tsm_pyramids.make_room(bpos, ptype, room_id, rot)
 183         -- Place mummy spawner
 184         local r = math.random(1,3)
 185         -- 4 possible spawner positions
 186         local spawner_posses = {
 187                 -- front
 188                 {{x=bpos.x+PYRA_Wh,y=bpos.y+2, z=bpos.z+5}, {x=0, y=0, z=2}},
 189                 -- left
 190                 {{x=bpos.x+PYRA_Wm-5,y=bpos.y+2, z=bpos.z+PYRA_Wh}, {x=-2, y=0, z=0}},
 191                 -- back
 192                 {{x=bpos.x+PYRA_Wh,y=bpos.y+2, z=bpos.z+PYRA_W-5}, {x=0, y=0, z=-2}},
 193                 -- right
 194                 {{x=bpos.x+5,y=bpos.y+2, z=bpos.z+PYRA_Wh}, {x=2, y=0, z=0}},
 195         }
 196         -- Delete the spawner position in which the entrance will be placed
 197         table.remove(spawner_posses, (rot % 4) + 1)
 198         add_spawner(spawner_posses[r][1], spawner_posses[r][2])
 199         -- Build entrance
 200         make_entrance(bpos, rot, brick, sand, flood_sand)
 201         -- Done
 202         minetest.log("action", "[tsm_pyramids] Created pyramid at "..minetest.pos_to_string(bpos)..".")
 203         return ok, msg
 204 end
 205
 206 local perl1 = {SEED1 = 9130, OCTA1 = 3, PERS1 = 0.5, SCAL1 = 250} -- Values should match minetest mapgen V6 desert noise.
 207 local perlin1 -- perlin noise buffer
 208
 209 local function hlp_fnct(pos, name)
 210         local n = minetest.get_node_or_nil(pos)
 211         if n and n.name and n.name == name then
 212                 return true
 213         else
 214                 return false
 215         end
 216 end
 217 local function ground(pos, old)
 218         local p2 = table.copy(pos)
 219         while hlp_fnct(p2, "air") do
 220                 p2.y = p2.y -1
 221         end
 222         if p2.y < old.y then
 223                 return {x=old.x, y=p2.y, z=old.z}
 224         else
 225                 return old
 226         end
 227 end
 228
 229 -- Attempt to generate a pyramid in the generated area.
 230 -- Up to one pyramid per mapchunk.
 231 minetest.register_on_generated(function(minp, maxp, seed)
 232         if maxp.y < PYRA_MIN_Y then return end
 233
 234         -- TODO: Use Minetests pseudo-random tools
 235         math.randomseed(seed)
 236
 237         if not perlin1 then
 238                 perlin1 = minetest.get_perlin(perl1.SEED1, perl1.OCTA1, perl1.PERS1, perl1.SCAL1)
 239         end
 240         --[[ Make sure the pyramid doesn't bleed outside of maxp,
 241         so it doesn't get placed incompletely by the mapgen.
 242         This creates a bias somewhat, as this means there are some coordinates in
 243         which pyramids cannot spawn. But it's still better to have broken pyramids.
 244         ]]
 245         local limit = function(pos, maxp)
 246                 pos.x = math.min(pos.x, maxp.x - PYRA_W+1)
 247                 pos.y = math.min(pos.y, maxp.y - PYRA_Wh)
 248                 pos.z = math.min(pos.z, maxp.z - PYRA_W+1)
 249                 return pos
 250         end
 251         local noise1 = perlin1:get_2d({x=minp.x,y=minp.y})
 252
 253         if noise1 > 0.25 or noise1 < -0.26 then
 254                 -- Need a bit of luck to place a pyramid
 255                 if math.random(0,10) > 7 then
 256                         minetest.log("verbose", "[tsm_pyramids] Pyramid not placed, bad dice roll. minp="..minetest.pos_to_string(minp))
 257                         return
 258                 end
 259
 260                 local mpos = {x=math.random(minp.x,maxp.x), y=math.random(minp.y,maxp.y), z=math.random(minp.z,maxp.z)}
 261
 262                 local sands = {"default:sand", "default:desert_sand", "default:desert_stone"}
 263                 local p2
 264                 local psand = {}
 265                 local sand
 266                 local cnt = 0
 267                 local sand_cnt_max = 0
 268                 local sand_cnt_max_id
 269                 -- Look for sand or desert stone to place the pyramid on
 270                 for s=1, #sands do
 271                         cnt = 0
 272                         local sand_cnt = 0
 273                         sand = sands[s]
 274                         psand[s] = minetest.find_node_near(mpos, 25, sand)
 275                         while cnt < 5 do
 276                                 cnt = cnt+1
 277                                 mpos = {x=math.random(minp.x,maxp.x), y=math.random(minp.y,maxp.y), z=math.random(minp.z,maxp.z)}
 278                                 local spos = minetest.find_node_near(mpos, 25, sand)
 279                                 if spos ~= nil then
 280                                         sand_cnt = sand_cnt + 1
 281                                         if psand[s] == nil then
 282                                                 psand[s] = spos
 283                                         end
 284                                 end
 285                                 if sand_cnt > sand_cnt_max then
 286                                         sand_cnt_max = sand_cnt
 287                                         sand_cnt_max_id = s
 288                                         p2 = psand[s]
 289                                 end
 290                         end
 291                 end
 292                 if p2 == nil then
 293                         minetest.log("verbose", "[tsm_pyramids] Pyramid not placed, no suitable surface. minp="..minetest.pos_to_string(minp))
 294                         return
 295                 end
 296                 -- Select the material type by the most prominent node type
 297                 -- E.g. if desert sand is most prominent, we place a desert sandstone pyramid
 298                 if sand_cnt_max_id then
 299                         sand = sands[sand_cnt_max_id]
 300                 end
 301                 if p2.y < PYRA_MIN_Y then
 302                         minetest.log("info", "[tsm_pyramids] Pyramid not placed, too deep. p2="..minetest.pos_to_string(p2))
 303                         return
 304                 end
 305                 -- Now sink the pyramid until each corner of it is no longer floating in mid-air
 306                 p2 = limit(p2, maxp)
 307                 local oposses = {
 308                         {x=p2.x,y=p2.y-1,z=p2.z},
 309                         {x=p2.x+PYRA_Wm,y=p2.y-1,z=p2.z+PYRA_Wm},
 310                         {x=p2.x+PYRA_Wm,y=p2.y-1,z=p2.z},
 311                         {x=p2.x,y=p2.y-1,z=p2.z+PYRA_Wm},
 312                 }
 313                 for o=1, #oposses do
 314                         local opos = oposses[o]
 315                         local n = minetest.get_node_or_nil(opos)
 316                         if n and n.name and n.name == "air" then
 317                                 local old = table.copy(p2)
 318                                 p2 = ground(opos, p2)
 319                         end
 320                 end
 321                 -- Random bonus sinking
 322                 p2.y = math.max(p2.y - math.random(0,3), PYRA_MIN_Y)
 323
 324                 -- Bad luck, we have hit the chunk border!
 325                 if p2.y < minp.y then
 326                         minetest.log("info", "[tsm_pyramids] Pyramid not placed, sunken too much. p2="..minetest.pos_to_string(p2))
 327                         return
 328                 end
 329
 330                 -- Make sure the pyramid is not near a "killer" node, like water
 331                 local middle = vector.add(p2, {x=PYRA_Wh, y=0, z=PYRA_Wh})
 332                 if minetest.find_node_near(p2, 5, {"default:water_source"}) ~= nil or
 333                                 minetest.find_node_near(vector.add(p2, {x=PYRA_W, y=0, z=0}), 5, {"default:water_source"}) ~= nil or
 334                                 minetest.find_node_near(vector.add(p2, {x=0, y=0, z=PYRA_W}), 5, {"default:water_source"}) ~= nil or
 335                                 minetest.find_node_near(vector.add(p2, {x=PYRA_W, y=0, z=PYRA_W}), 5, {"default:water_source"}) ~= nil or
 336
 337                                 minetest.find_node_near(middle, PYRA_W, {"default:dirt_with_grass"}) ~= nil or
 338                                 minetest.find_node_near(middle, 52, {"default:sandstonebrick", "default:desert_sandstone_brick", "default:desert_stonebrick"}) ~= nil or
 339                                 minetest.find_node_near(middle, PYRA_Wh + 3, {"default:cactus", "group:leaves", "group:tree"}) ~= nil then
 340                         minetest.log("info", "[tsm_pyramids] Pyramid not placed, inappropriate node nearby. p2="..minetest.pos_to_string(p2))
 341                         return
 342                 end
 343
 344                 -- Bonus chance to spawn a sandstone pyramid in v6 desert because otherwise they would be too rare in v6
 345                 if (mg_name == "v6" and sand == "default:desert_sand" and math.random(1, 2) == 1) then
 346                         sand = "default:sand"
 347                 end
 348
 349                 -- Desert stone pyramids only generate in areas with almost no sand
 350                 if sand == "default:desert_stone" then
 351                         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"})
 352                         if #nodes > 5 then
 353                                 sand = "default:desert_sand"
 354                         end
 355                 end
 356
 357                 -- Generate the pyramid!
 358                 if sand == "default:desert_sand" then
 359                         -- Desert sandstone pyramid
 360                         make(p2, "default:desert_sandstone_brick", "default:desert_sandstone", "default:desert_stone", "default:desert_sand", "desert_sandstone")
 361                 elseif sand == "default:sand" then
 362                         -- Sandstone pyramid
 363                         make(p2, "default:sandstonebrick", "default:sandstone", "default:sandstone", "default:sand", "sandstone")
 364                 else
 365                         -- Desert stone pyramid
 366                         make(p2, "default:desert_stonebrick", "default:desert_stone_block", "default:desert_stone", "ignore", "desert_stone")
 367                 end
 368         end
 369 end)
 370
 371 -- Add backwards-compability for nodes from the original pyramids mod
 372 if minetest.get_modpath("pyramids") == nil then
 373         -- Nodes
 374         minetest.register_alias("pyramids:trap", "tsm_pyramids:trap")
 375         minetest.register_alias("pyramids:trap_2", "tsm_pyramids:trap_2")
 376         minetest.register_alias("pyramids:deco_stone1", "tsm_pyramids:deco_stone1")
 377         minetest.register_alias("pyramids:deco_stone2", "tsm_pyramids:deco_stone2")
 378         minetest.register_alias("pyramids:deco_stone3", "tsm_pyramids:deco_stone3")
 379         minetest.register_alias("pyramids:spawner_mummy", "tsm_pyramids:spawner_mummy")
 380 end
 381
 382 minetest.register_chatcommand("spawnpyramid", {
 383         description = S("Generate a pyramid"),
 384                 params = S("[<room_type>]"),
 385                 privs = { server = true },
 386                 func = function(name, param)
 387                         local player = minetest.get_player_by_name(name)
 388                         if not player then
 389                                 return false, S("No player.")
 390                         end
 391                         local pos = player:get_pos()
 392                         pos = vector.round(pos)
 393                         local s = math.random(1,3)
 394                         local r = tonumber(param)
 395                         local room_id
 396                         if r then
 397                                 room_id = r
 398                         end
 399                         local ok, msg
 400                         pos = vector.add(pos, {x=-PYRA_Wh, y=-1, z=0})
 401                         if s == 1 then
 402                                 -- Sandstone
 403                                 ok, msg = make(pos, "default:sandstonebrick", "default:sandstone", "default:sandstone", "default:sand", "sandstone", room_id)
 404                         elseif s == 2 then
 405                                 -- Desert sandstone
 406                                 ok, msg = make(pos, "default:desert_sandstone_brick", "default:desert_sandstone", "default:desert_stone", "default:desert_sand", "desert_sandstone", room_id)
 407                         else
 408                                 -- Desert stone
 409                                 ok, msg = make(pos, "default:desert_stonebrick", "default:desert_stone_block", "default:desert_stone", "ignore", "desert_stone", room_id)
 410                         end
 411                         if ok then
 412                                 return true, S("Pyramid generated at @1.", minetest.pos_to_string(pos))
 413                         else
 414                                 return false, msg
 415                         end
 416                 end,
 417         }
 418 )