Initial commit

7 files changed, 1092 insertions, 0 deletions

diff --git a/README.txt b/README.txt
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+++ b/README.txt
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+pathv7 0.1.0 by paramat
+For Minetest 0.4.14 and later
+Depends default stairs
+Licenses: Code LGPLv2.1, textures CC BY-SA 3.0
+
+Use with mapgen v7 only.
+Creates a worldwide network of paths, bridges and tunnels.
diff --git a/depends.txt b/depends.txt
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index 0000000..4ad96d5
--- /dev/null
+++ b/depends.txt
@@ -0,0 +1 @@
+default
diff --git a/init.lua b/init.lua
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+++ b/init.lua
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+-- Parameters
+
+local YMAXMINP = -32 -- Maximum minp.y of generated chunks
+					-- (-32 for default mapgen v6. 48, 128, 208 for higher)
+local HSAMP = 0.05 -- Height select amplitude. Maximum steepness of paths
+local HSOFF = 0.0 -- Height select offset.
+					-- Bias paths towards lower (-) or higher (+) terrain
+local TCOL = 0.3 -- Column noise threshold. Bridge column density
+
+
+-- Mapgen v7 parameters
+
+-- 2D noise for base terrain
+
+local np_base = {
+	offset = 4,
+	scale = 70,
+	spread = {x = 600, y = 600, z = 600},
+	seed = 82341,
+	octaves = 5,
+	persist = 0.6
+}
+
+-- 2D noise for alt terrain
+
+local np_alt = {
+	offset = 4,
+	scale = 25,
+	spread = {x = 600, y = 600, z = 600},
+	seed = 5934,
+	octaves = 5,
+	persist = 0.6
+}
+
+-- 2D noise for height select
+
+local np_select = {
+	offset = -8,
+	scale = 16,
+	spread = {x = 500, y = 500, z = 500},
+	seed = 4213,
+	octaves = 5, -- default 6
+	persist = 0.4 -- default 0.7
+}
+
+-- Mod path parameters
+
+-- 2D noise for patha
+
+local np_patha = {
+	offset = 0,
+	scale = 1,
+	spread = {x = 1024, y = 1024, z = 1024},
+	seed = 11711,
+	octaves = 3,
+	persist = 0.4
+}
+
+-- 2D noise for pathb
+
+local np_pathb = {
+	offset = 0,
+	scale = 1,
+	spread = {x = 2048, y = 2048, z = 2048},
+	seed = -8017,
+	octaves = 4,
+	persist = 0.4
+}
+
+-- 2D noise for pathc
+
+local np_pathc = {
+	offset = 0,
+	scale = 1,
+	spread = {x = 4096, y = 4096, z = 4096},
+	seed = 300707,
+	octaves = 5,
+	persist = 0.4
+}
+
+-- 2D noise for pathd
+
+local np_pathd = {
+	offset = 0,
+	scale = 1,
+	spread = {x = 8192, y = 8192, z = 8192},
+	seed = -80033,
+	octaves = 6,
+	persist = 0.4
+}
+
+-- 2D noise for columns
+
+local np_column = {
+	offset = 0,
+	scale = 1,
+	spread = {x = 8, y = 8, z = 8},
+	seed = 1728833,
+	octaves = 3,
+	persist = 2
+}
+
+
+-- Do files
+
+dofile(minetest.get_modpath("pathv7") .. "/nodes.lua")
+
+
+-- Initialise noise objects to nil
+
+local nobj_base = nil
+local nobj_alt = nil
+local nobj_select = nil
+local nobj_patha = nil
+local nobj_pathb = nil
+local nobj_pathc = nil
+local nobj_pathd = nil
+local nobj_column = nil
+
+-- Localise noise buffers
+
+local nbuf_base
+local nbuf_alt
+local nbuf_select
+local nbuf_patha
+local nbuf_pathb
+local nbuf_pathc
+local nbuf_pathd
+local nbuf_column
+
+
+-- On generated function
+
+minetest.register_on_generated(function(minp, maxp, seed)
+	if minp.y < -32 or minp.y > YMAXMINP then
+		return
+	end
+
+	local t1 = os.clock()
+	local x1 = maxp.x
+	local y1 = maxp.y
+	local z1 = maxp.z
+	local x0 = minp.x
+	local y0 = minp.y
+	local z0 = minp.z
+	
+	local c_air      = minetest.get_content_id("air")
+	local c_ignore   = minetest.get_content_id("ignore")
+	local c_tree     = minetest.get_content_id("default:tree")
+	local c_sand     = minetest.get_content_id("default:sand")
+	local c_dirt     = minetest.get_content_id("default:dirt")
+	local c_grass    = minetest.get_content_id("default:dirt_with_grass")
+	local c_drygrass = minetest.get_content_id("default:dirt_with_dry_grass")
+	local c_dirtsnow = minetest.get_content_id("default:dirt_with_snow")
+	local c_desand   = minetest.get_content_id("default:desert_sand")
+	local c_stone    = minetest.get_content_id("default:stone")
+	local c_sastone  = minetest.get_content_id("default:sandstone")
+	local c_destone  = minetest.get_content_id("default:desert_stone")
+	local c_ice      = minetest.get_content_id("default:ice")
+	local c_meselamp = minetest.get_content_id("default:meselamp")
+
+	local c_wood   = minetest.get_content_id("pathv7:junglewood")
+	local c_path   = minetest.get_content_id("pathv7:path")
+	local c_column = minetest.get_content_id("pathv7:bridgewood")
+
+	local c_stairn  = minetest.get_content_id("pathv7:stairn")
+	local c_stairs  = minetest.get_content_id("pathv7:stairs")
+	local c_staire  = minetest.get_content_id("pathv7:staire")
+	local c_stairw  = minetest.get_content_id("pathv7:stairw")
+	local c_stairne = minetest.get_content_id("pathv7:stairne")
+	local c_stairnw = minetest.get_content_id("pathv7:stairnw")
+	local c_stairse = minetest.get_content_id("pathv7:stairse")
+	local c_stairsw = minetest.get_content_id("pathv7:stairsw")
+	
+	local c_pstairn  = minetest.get_content_id("pathv7:pstairn")
+	local c_pstairs  = minetest.get_content_id("pathv7:pstairs")
+	local c_pstaire  = minetest.get_content_id("pathv7:pstaire")
+	local c_pstairw  = minetest.get_content_id("pathv7:pstairw")
+	local c_pstairne = minetest.get_content_id("pathv7:pstairne")
+	local c_pstairnw = minetest.get_content_id("pathv7:pstairnw")
+	local c_pstairse = minetest.get_content_id("pathv7:pstairse")
+	local c_pstairsw = minetest.get_content_id("pathv7:pstairsw")
+
+	local sidelen = x1 - x0 + 1
+	local emerlen = sidelen + 32
+	local overlen = sidelen + 5 -- noisemap x, z from minp-3 to maxp+2
+	local chulens = {x = overlen, y = overlen, z = 1}
+	local minpos = {x = x0 - 3, y = z0 - 3}
+
+	nobj_base   = nobj_base   or minetest.get_perlin_map(np_base,   chulens)
+	nobj_alt    = nobj_alt    or minetest.get_perlin_map(np_alt,    chulens)
+	nobj_select = nobj_select or minetest.get_perlin_map(np_select, chulens)
+
+	nobj_patha  = nobj_patha  or minetest.get_perlin_map(np_patha,  chulens)
+	nobj_pathb  = nobj_pathb  or minetest.get_perlin_map(np_pathb,  chulens)
+	nobj_pathc  = nobj_pathc  or minetest.get_perlin_map(np_pathc,  chulens)
+	nobj_pathd  = nobj_pathd  or minetest.get_perlin_map(np_pathd,  chulens)
+	nobj_column = nobj_column or minetest.get_perlin_map(np_column, chulens)
+	
+	local nvals_base   = nobj_base  :get2dMap_flat({x = x0 - 3, y = z0 - 3}, nbuf_base)
+	local nvals_alt    = nobj_alt   :get2dMap_flat({x = x0 - 3, y = z0 - 3}, nbuf_alt)
+	local nvals_select = nobj_select:get2dMap_flat({x = x0 - 3, y = z0 - 3}, nbuf_select)
+
+	local nvals_patha  = nobj_patha :get2dMap_flat(minpos, nbuf_patha)
+	local nvals_pathb  = nobj_pathb :get2dMap_flat(minpos, nbuf_pathb)
+	local nvals_pathc  = nobj_pathc :get2dMap_flat(minpos, nbuf_pathc)
+	local nvals_pathd  = nobj_pathd :get2dMap_flat(minpos, nbuf_pathd)
+	local nvals_column = nobj_column:get2dMap_flat(minpos, nbuf_column)
+	
+	local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
+	local area = VoxelArea:new({MinEdge = emin, MaxEdge = emax})
+	local data = vm:get_data()
+
+	local ni = 1
+	local stable = {}
+	for z = z0 - 3, z1 + 2 do
+		local n_xprepatha = false
+		local n_xprepathb = false
+		local n_xprepathc = false
+		local n_xprepathd = false
+		-- x0 - 3, z0 - 3 is to setup initial values of 'xprepath_', 'zprepath_'
+		for x = x0 - 3, x1 + 2 do
+			local n_patha = nvals_patha[ni]
+			local n_zprepatha = nvals_patha[(ni - overlen)]
+
+			local n_pathb = nvals_pathb[ni]
+			local n_zprepathb = nvals_pathb[(ni - overlen)]
+			
+			local n_pathc = nvals_pathc[ni]
+			local n_zprepathc = nvals_pathc[(ni - overlen)]
+
+			local n_pathd = nvals_pathd[ni]
+			local n_zprepathd = nvals_pathd[(ni - overlen)]
+
+			if x >= x0 - 2 and z >= z0 - 2 then
+				local abscol = math.abs(nvals_column[ni])
+				local base = nvals_base[ni]
+				local alt = nvals_alt[ni]
+				local select = nvals_select[ni]
+				if base < alt then
+					base = alt
+				end
+				local tblend = 0.5 + HSAMP * (select - 0.5) + HSOFF
+				tblend = math.min(math.max(tblend, 0), 1)
+				local tlevel = base * tblend + alt * (1 - tblend)
+				-- TODO allow path above
+				local pathy = math.floor(math.min(math.max(tlevel, 7), 42))
+
+				-- paths a and b
+				if (n_patha >= 0 and n_xprepatha < 0) -- detect sign change of noise
+						or (n_patha < 0 and n_xprepatha >= 0)
+						or (n_patha >= 0 and n_zprepatha < 0)
+						or (n_patha < 0 and n_zprepatha >= 0)
+						or (n_pathb >= 0 and n_xprepathb < 0)
+						or (n_pathb < 0 and n_xprepathb >= 0)
+						or (n_pathb >= 0 and n_zprepathb < 0)
+						or (n_pathb < 0 and n_zprepathb >= 0) then
+					if pathy > y1 then
+						-- build columns through this chunk
+						if abscol < TCOL then
+							local vi = area:index(x, y1, z)
+							for y = 1, sidelen do
+								local nodid = data[vi]
+								if nodid == c_stone
+										or nodid == c_destone
+										or nodid == c_sastone
+										or nodid == c_ice then
+									break
+								else
+									data[vi] = c_column
+								end
+								vi = vi - emerlen
+							end
+						end
+					elseif pathy >= y0 then
+						-- path in chunk
+						-- scan disk at path level for dirt
+						local wood = true
+						for k = -1, 1 do
+							local vi = area:index(x - 1, pathy, z + k)
+							for i = -1, 1 do
+								local nodid = data[vi]
+								if nodid == c_dirt
+										or nodid == c_grass
+										or nodid == c_dirtsnow
+										or nodid == c_drygrass then
+									wood = false -- use dirt path node
+								end
+								vi = vi + 1
+							end
+						end
+						-- scan disk above path for stone, ice
+						local tunnel = false
+						local excatop
+						for k = -1, 1 do
+							local vi = area:index(x - 1, pathy + 5, z + k)
+							for i = -1, 1 do
+								local nodid = data[vi]
+								if nodid == c_stone
+										or nodid == c_destone
+										or nodid == c_sastone
+										or nodid == c_ice then
+									tunnel = true
+								end
+								vi = vi + 1
+							end
+						end
+						if tunnel then
+							excatop = pathy + 5 -- tunnel
+						else
+							excatop = y1 -- excavate to chunk top
+						end
+						-- place path brush
+						if wood then
+							local vi = area:index(x - 1, pathy, z - 1)
+							if data[vi] ~= c_wood
+									and data[vi] ~= c_path then
+								data[vi] = c_stairne
+							end
+							vi = vi + 1
+							if data[vi] ~= c_wood
+									and data[vi] ~= c_path then
+								data[vi] = c_stairn
+							end
+							vi = vi + 1
+							if data[vi] ~= c_wood
+									and data[vi] ~= c_path then
+								data[vi] = c_stairnw
+							end
+
+							local vi = area:index(x - 1, pathy, z)
+							if data[vi] ~= c_wood
+									and data[vi] ~= c_path then
+								data[vi] = c_staire
+							end
+							vi = vi + 1
+							data[vi] = c_wood
+							vi = vi + 1
+							if data[vi] ~= c_wood
+									and data[vi] ~= c_path then
+								data[vi] = c_stairw
+							end
+	
+							local vi = area:index(x - 1, pathy, z + 1)
+							if data[vi] ~= c_wood
+									and data[vi] ~= c_path then
+								data[vi] = c_stairse
+							end
+							vi = vi + 1
+							if data[vi] ~= c_wood
+									and data[vi] ~= c_path then
+								data[vi] = c_stairs
+							end
+							vi = vi + 1
+							if data[vi] ~= c_wood
+									and data[vi] ~= c_path then
+								data[vi] = c_stairsw
+							end
+						else
+							local vi = area:index(x - 1, pathy, z - 1)
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_pstairne
+							end
+							vi = vi + 1
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_pstairn
+							end
+							vi = vi + 1
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_pstairnw
+							end
+	
+							local vi = area:index(x - 1, pathy, z)
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_pstaire
+							end
+							vi = vi + 1
+							data[vi] = c_path
+							vi = vi + 1
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_pstairw
+							end
+	
+							local vi = area:index(x - 1, pathy, z + 1)
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_pstairse
+							end
+							vi = vi + 1
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_pstairs
+							end
+							vi = vi + 1
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_pstairsw
+							end
+						end
+						-- excavate above path
+						for y = pathy + 1, excatop do
+							for k = -1, 1 do
+								local vi = area:index(x - 1, y, z + k)
+								for i = -1, 1 do
+									local nodid = data[vi]
+									if y == excatop then
+										if nodid == c_dirt
+												or nodid == c_grass
+												or nodid == c_drygrass
+												or nodid == c_dirtsnow then
+											data[vi] = c_stone
+										elseif nodid == c_desand then
+											data[vi] = c_destone
+										elseif tunnel
+												and math.random() < 0.05
+												and (nodid == c_stone
+												or nodid == c_destone
+												or nodid == c_sastone
+												or nodid == c_ice) then
+											data[vi] = c_meselamp
+										end
+									else
+										if nodid ~= c_wood
+												and nodid ~= c_path
+												and nodid ~= c_stairn
+												and nodid ~= c_stairs
+												and nodid ~= c_staire
+												and nodid ~= c_stairw
+												and nodid ~= c_stairne
+												and nodid ~= c_stairnw
+												and nodid ~= c_stairse
+												and nodid ~= c_stairsw
+												and nodid ~= c_pstairn
+												and nodid ~= c_pstairs
+												and nodid ~= c_pstaire
+												and nodid ~= c_pstairw
+												and nodid ~= c_pstairne
+												and nodid ~= c_pstairnw
+												and nodid ~= c_pstairse
+												and nodid ~= c_pstairsw then
+											data[vi] = c_air
+										end
+									end
+									vi = vi + 1
+								end
+							end
+						end
+						-- bridge structure
+						if wood then
+							local vi = area:index(x, pathy - 1, z)
+							data[vi] = c_column
+							vi = vi - emerlen
+							data[vi] = c_column
+							-- columns
+							if abscol < TCOL then
+								local vi = area:index(x, pathy - 3, z)
+								for y = pathy - 3, y0, -1 do
+									local nodid = data[vi]
+									if nodid == c_stone
+											or nodid == c_destone
+											or nodid == c_sastone
+											or nodid == c_ice then
+										break
+									else
+										data[vi] = c_column
+									end
+									vi = vi - emerlen
+								end
+							end
+						end
+					end
+
+				-- paths c and d
+				elseif (n_pathc >= 0 and n_xprepathc < 0) -- detect sign change of noise
+						or (n_pathc < 0 and n_xprepathc >= 0)
+						or (n_pathc >= 0 and n_zprepathc < 0)
+						or (n_pathc < 0 and n_zprepathc >= 0)
+						or (n_pathd >= 0 and n_xprepathd < 0)
+						or (n_pathd < 0 and n_xprepathd >= 0)
+						or (n_pathd >= 0 and n_zprepathd < 0)
+						or (n_pathd < 0 and n_zprepathd >= 0) then
+					if pathy > y1 then
+						-- build columns through this chunk
+						if abscol < TCOL then
+							for i = -1, 1, 2 do
+							for k = -1, 1, 2 do
+								local vi = area:index(x + i, y1, z + k)
+								for y = 1, sidelen do
+									local nodid = data[vi]
+									if nodid == c_stone
+											or nodid == c_destone
+											or nodid == c_sastone
+											or nodid == c_ice then
+										break
+									else
+										data[vi] = c_column
+									end
+									vi = vi - emerlen
+								end
+							end
+							end
+						end
+					elseif pathy >= y0 then
+						-- path in chunk
+						-- scan disk at path level for dirt
+						local wood = true
+						for k = -2, 2 do
+							local vi = area:index(x - 2, pathy, z + k)
+							for i = -2, 2 do
+								local nodid = data[vi]
+								if nodid == c_dirt
+										or nodid == c_grass
+										or nodid == c_dirtsnow
+										or nodid == c_drygrass then
+									wood = false -- use dirt path node
+								end
+								vi = vi + 1
+							end
+						end
+						-- scan disk above path for stone
+						local tunnel = false
+						local excatop
+						for k = -2, 2 do
+							local vi = area:index(x - 2, pathy + 5, z + k)
+							for i = -2, 2 do
+								local nodid = data[vi]
+								if nodid == c_stone
+										or nodid == c_destone
+										or nodid == c_sastone
+										or nodid == c_ice then
+									tunnel = true
+								end
+								vi = vi + 1
+							end
+						end
+
+						if tunnel then
+							excatop = pathy + 5 -- tunnel
+						else
+							excatop = y1 -- excavate to chunk top
+						end
+						-- place path node brush
+						if wood then
+							local vi = area:index(x - 2, pathy, z - 2)
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_stairne
+							end
+							for iter = 1, 3 do
+								vi = vi + 1
+								if data[vi] ~= c_path
+										and data[vi] ~= c_wood then
+									data[vi] = c_stairn
+								end
+							end
+							vi = vi + 1
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_stairnw
+							end
+	
+							for k = -1, 1 do
+								local vi = area:index(x - 2, pathy, z + k)
+								if data[vi] ~= c_path
+										and data[vi] ~= c_wood then
+									data[vi] = c_staire
+								end
+								for iter = 1, 3 do
+									vi = vi + 1
+									data[vi] = c_wood
+								end
+								vi = vi + 1
+								if data[vi] ~= c_path
+										and data[vi] ~= c_wood then
+									data[vi] = c_stairw
+								end
+							end
+	
+							local vi = area:index(x - 2, pathy, z + 2)
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_stairse
+							end
+							for iter = 1, 3 do
+								vi = vi + 1
+								if data[vi] ~= c_path
+										and data[vi] ~= c_wood then
+									data[vi] = c_stairs
+								end
+							end
+							vi = vi + 1
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_stairsw
+							end
+						else
+							local vi = area:index(x - 2, pathy, z - 2)
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_pstairne
+							end
+							for iter = 1, 3 do
+								vi = vi + 1
+								if data[vi] ~= c_path
+										and data[vi] ~= c_wood then
+									data[vi] = c_pstairn
+								end
+							end
+							vi = vi + 1
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_pstairnw
+							end
+	
+							for k = -1, 1 do
+								local vi = area:index(x - 2, pathy, z + k)
+								if data[vi] ~= c_path
+										and data[vi] ~= c_wood then
+									data[vi] = c_pstaire
+								end
+								for iter = 1, 3 do
+									vi = vi + 1
+									data[vi] = c_path
+								end
+								vi = vi + 1
+								if data[vi] ~= c_path
+										and data[vi] ~= c_wood then
+									data[vi] = c_pstairw
+								end
+							end
+	
+							local vi = area:index(x - 2, pathy, z + 2)
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_pstairse
+							end
+							for iter = 1, 3 do
+								vi = vi + 1
+								if data[vi] ~= c_path
+										and data[vi] ~= c_wood then
+									data[vi] = c_pstairs
+								end
+							end
+							vi = vi + 1
+							if data[vi] ~= c_path
+									and data[vi] ~= c_wood then
+								data[vi] = c_pstairsw
+							end
+						end
+						-- excavate
+						for y = pathy + 1, excatop do
+							for k = -2, 2 do
+								local vi = area:index(x - 2, y, z + k)
+								for i = -2, 2 do
+									local nodid = data[vi]
+									if y == excatop then
+										if nodid == c_dirt
+												or nodid == c_grass
+												or nodid == c_drygrass
+												or nodid == c_dirtsnow then
+											data[vi] = c_stone
+										elseif nodid == c_desand then
+											data[vi] = c_destone
+										elseif tunnel
+												and math.random() < 0.05
+												and (nodid == c_stone
+												or nodid == c_destone
+												or nodid == c_sastone
+												or nodid == c_ice) then
+											data[vi] = c_meselamp
+										end
+									else
+										if nodid ~= c_wood
+												and nodid ~= c_path
+												and nodid ~= c_stairn
+												and nodid ~= c_stairs
+												and nodid ~= c_staire
+												and nodid ~= c_stairw
+												and nodid ~= c_stairne
+												and nodid ~= c_stairnw
+												and nodid ~= c_stairse
+												and nodid ~= c_stairsw
+												and nodid ~= c_pstairn
+												and nodid ~= c_pstairs
+												and nodid ~= c_pstaire
+												and nodid ~= c_pstairw
+												and nodid ~= c_pstairne
+												and nodid ~= c_pstairnw
+												and nodid ~= c_pstairse
+												and nodid ~= c_pstairsw then
+											data[vi] = c_air
+										end
+									end
+									vi = vi + 1
+								end
+							end
+						end
+						-- bridge structure
+						if wood then
+							for i = -1, 1 do
+							for k = -1, 1 do
+								if not (i == 0 and k == 0) then
+									local vi = area:index(x + i, pathy - 1, z + k)
+									for y = 1, 2 do
+										data[vi] = c_column
+										vi = vi - emerlen
+									end
+								end
+							end
+							end
+							-- columns
+							if abscol < TCOL then
+								for i = -1, 1, 2 do
+								for k = -1, 1, 2 do
+									local vi = area:index(x + i, pathy - 3, z + k)
+									for y = pathy - 3, y0, -1 do
+										local nodid = data[vi]
+										if nodid == c_stone
+												or nodid == c_destone
+												or nodid == c_sastone
+												or nodid == c_ice then
+											break
+										else
+											data[vi] = c_column
+										end
+										vi = vi - emerlen
+									end
+								end
+								end
+							end
+						end
+					end
+				end
+			end
+
+			n_xprepatha = n_patha
+			n_xprepathb = n_pathb
+			n_xprepathc = n_pathc
+			n_xprepathd = n_pathd
+			ni = ni + 1
+		end
+	end
+	
+	vm:set_data(data)
+	vm:set_lighting({day = 0, night = 0})
+	vm:calc_lighting()
+	vm:write_to_map(data)
+
+	local chugent = math.ceil((os.clock() - t1) * 1000)
+	print ("[pathv7] Generate chunk " .. chugent .. " ms")
+end)
diff --git a/license.txt b/license.txt
new file mode 100644
index 0000000..67ed348
--- /dev/null
+++ b/license.txt
@@ -0,0 +1,25 @@
+License of source code
+----------------------
+Pathv6alt
+Copyright (C) 2014-2015 paramat
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+License of media (textures)
+---------------------------
+All textures are derived from Minetest's default textures.
+
+Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
+http://creativecommons.org/licenses/by-sa/3.0/
diff --git a/nodes.lua b/nodes.lua
new file mode 100644
index 0000000..c93cbb0
--- /dev/null
+++ b/nodes.lua
@@ -0,0 +1,303 @@
+minetest.register_node("pathv7:junglewood", {

+	description = "Mod jungle wood",

+	tiles = {"default_junglewood.png"},

+	is_ground_content = false,

+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},

+	sounds = default.node_sound_wood_defaults(),

+})

+

+minetest.register_node("pathv7:path", {

+	description = "Dirt path",

+	tiles = {"pathv7_path.png"},

+	is_ground_content = false,

+	groups = {crumbly = 2},

+	sounds = default.node_sound_dirt_defaults(),

+})

+

+minetest.register_node("pathv7:bridgewood", {

+	description = "Bridge wood",

+	tiles = {"pathv7_bridgewood.png"},

+	is_ground_content = false,

+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},

+	sounds = default.node_sound_wood_defaults(),

+})

+

+minetest.register_node("pathv7:stairn", { -- stair rising to the north

+	description = "Jungle wood stair N",

+	tiles = {"default_junglewood.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{-0.5, 0, 0, 0.5, 0.5, 0.5},

+		},

+	},

+	sounds = default.node_sound_wood_defaults(),

+})

+

+minetest.register_node("pathv7:stairs", {

+	description = "Jungle wood stair S",

+	tiles = {"default_junglewood.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{-0.5, 0, -0.5, 0.5, 0.5, 0},

+		},

+	},

+	sounds = default.node_sound_wood_defaults(),

+})

+

+minetest.register_node("pathv7:staire", {

+	description = "Jungle wood stair E",

+	tiles = {"default_junglewood.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{0, 0, -0.5, 0.5, 0.5, 0.5},

+		},

+	},

+	sounds = default.node_sound_wood_defaults(),

+})

+

+minetest.register_node("pathv7:stairw", {

+	description = "Jungle wood stair W",

+	tiles = {"default_junglewood.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{-0.5, 0, -0.5, 0, 0.5, 0.5},

+		},

+	},

+	sounds = default.node_sound_wood_defaults(),

+})

+

+minetest.register_node("pathv7:stairne", {

+	description = "Jungle wood stair NE",

+	tiles = {"default_junglewood.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{0, 0, 0, 0.5, 0.5, 0.5},

+		},

+	},

+	sounds = default.node_sound_wood_defaults(),

+})

+

+minetest.register_node("pathv7:stairnw", {

+	description = "Jungle wood stair NW",

+	tiles = {"default_junglewood.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{-0.5, 0, 0, 0, 0.5, 0.5},

+		},

+	},

+	sounds = default.node_sound_wood_defaults(),

+})

+

+minetest.register_node("pathv7:stairse", {

+	description = "Jungle wood stair SE",

+	tiles = {"default_junglewood.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{0, 0, -0.5, 0.5, 0.5, 0},

+		},

+	},

+	sounds = default.node_sound_wood_defaults(),

+})

+

+minetest.register_node("pathv7:stairsw", {

+	description = "Jungle wood stair SW",

+	tiles = {"default_junglewood.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{-0.5, 0, -0.5, 0, 0.5, 0},

+		},

+	},

+	sounds = default.node_sound_wood_defaults(),

+})

+

+minetest.register_node("pathv7:pstairn", {

+	description = "Dirt stair N",

+	tiles = {"pathv7_path.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {crumbly = 2},

+	drop = "default:dirt",

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{-0.5, 0, 0, 0.5, 0.5, 0.5},

+		},

+	},

+	sounds = default.node_sound_dirt_defaults(),

+})

+

+minetest.register_node("pathv7:pstairs", {

+	description = "Dirt stair S",

+	tiles = {"pathv7_path.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {crumbly = 2},

+	drop = "default:dirt",

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{-0.5, 0, -0.5, 0.5, 0.5, 0},

+		},

+	},

+	sounds = default.node_sound_wood_defaults(),

+})

+

+minetest.register_node("pathv7:pstaire", {

+	description = "Dirt stair E",

+	tiles = {"pathv7_path.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {crumbly = 2},

+	drop = "default:dirt",

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{0, 0, -0.5, 0.5, 0.5, 0.5},

+		},

+	},

+	sounds = default.node_sound_dirt_defaults(),

+})

+

+minetest.register_node("pathv7:pstairw", {

+	description = "Dirt stair W",

+	tiles = {"pathv7_path.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {crumbly = 2},

+	drop = "default:dirt",

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{-0.5, 0, -0.5, 0, 0.5, 0.5},

+		},

+	},

+	sounds = default.node_sound_dirt_defaults(),

+})

+

+minetest.register_node("pathv7:pstairne", {

+	description = "Dirt stair NE",

+	tiles = {"pathv7_path.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {crumbly = 2},

+	drop = "default:dirt",

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{0, 0, 0, 0.5, 0.5, 0.5},

+		},

+	},

+	sounds = default.node_sound_dirt_defaults(),

+})

+

+minetest.register_node("pathv7:pstairnw", {

+	description = "Dirt stair NW",

+	tiles = {"pathv7_path.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {crumbly = 2},

+	drop = "default:dirt",

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{-0.5, 0, 0, 0, 0.5, 0.5},

+		},

+	},

+	sounds = default.node_sound_dirt_defaults(),

+})

+

+minetest.register_node("pathv7:pstairse", {

+	description = "Dirt stair SE",

+	tiles = {"pathv7_path.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {crumbly = 2},

+	drop = "default:dirt",

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{0, 0, -0.5, 0.5, 0.5, 0},

+		},

+	},

+	sounds = default.node_sound_dirt_defaults(),

+})

+

+minetest.register_node("pathv7:pstairsw", {

+	description = "Dirt stair SW",

+	tiles = {"pathv7_path.png"},

+	drawtype = "nodebox",

+	paramtype = "light",

+	is_ground_content = false,

+	groups = {crumbly = 2},

+	drop = "default:dirt",

+	node_box = {

+		type = "fixed",

+		fixed = {

+			{-0.5, -0.5, -0.5, 0.5, 0, 0.5},

+			{-0.5, 0, -0.5, 0, 0.5, 0},

+		},

+	},

+	sounds = default.node_sound_dirt_defaults(),

+})

diff --git a/textures/pathv7_bridgewood.png b/textures/pathv7_bridgewood.png
new file mode 100644
index 0000000..1a368ed
--- /dev/null
+++ b/textures/pathv7_bridgewood.png
diff --git a/textures/pathv7_path.png b/textures/pathv7_path.png
new file mode 100644
index 0000000..b57196e
--- /dev/null
+++ b/textures/pathv7_path.png