2 path systems. Dark pathslab side texture. No mount noise: amplify terrain noise

README.txt

@@ -1,4 +1,4 @@
-path 0.3.1 by paramat
+path 0.3.2 by paramat
 For latest stable Minetest back to 0.4.8
 Depends default
 Licenses: code WTFPL

init.lua

@@ -1,18 +1,22 @@
--- path 0.3.1 by paramat
+-- path 0.3.2 by paramat
 -- For latest stable Minetest and back to 0.4.8
 -- Depends default
 -- License: code WTFPL
 
+-- 2 path systems
+-- dark pathslab side textures
+-- simpler mapgen: amplify terrain noise
+
 -- Parameters
 
-local YCEN = 32 -- Terrain centre
+local YCEN = 40 -- Terrain centre
-local YWAT = 1 -- Terrain centre
+local YWAT = 1 -- Water level
-local TERSCA = 16 -- Vertical roads terrain scale
+local TERSCA = 24 -- Vertical roads terrain scale
 local YBTOP = 5 -- Beach top
-local YROCK = 144
+local YROCK = 256 -- Dirt thins to 1 node at this distance above YWAT
-local DEPSEL = 8
+local DEPSEL = 8 -- Depth of dirt at sea level
 local APPCHA = 1 / 4 ^ 2 -- Maximum appletree chance per node
-local TFLO = 0.03 -- Flora threshold. Keeps flora away from roads.
+local TFLO = 0.015 -- Flora threshold. Keeps flora away from roads.
 local TPFLO = 0.02 -- Flora path threshold. Keeps flora away from paths.
 
 -- 2D noise for roads terrain
@@ -23,18 +27,7 @@ local np_terrain = {
 	spread = {x=512, y=512, z=512},
 	seed = -9111,
 	octaves = 4,
-	persist = 0.4
+	persist = 0.5
-}
-
--- 2D noise for mountains and lakes
-
-local np_mount = {
-	offset = 0,
-	scale = 1,
-	spread = {x=2048, y=2048, z=2048},
-	seed = 1455511,
-	octaves = 5,
-	persist = 0.4
 }
 
 -- 2D noise for patha
@@ -42,7 +35,7 @@ local np_mount = {
 local np_patha = {
 	offset = 0,
 	scale = 1,
-	spread = {x=1024, y=1024, z=1024},
+	spread = {x=2048, y=2048, z=2048},
 	seed = 11,
 	octaves = 4,
 	persist = 0.33
@@ -53,7 +46,7 @@ local np_patha = {
 local np_pathb = {
 	offset = 0,
 	scale = 1,
-	spread = {x=1024, y=1024, z=1024},
+	spread = {x=2048, y=2048, z=2048},
 	seed = -80033,
 	octaves = 4,
 	persist = 0.33
@@ -70,6 +63,17 @@ local np_pathc = {
 	persist = 0.33
 }
 
+-- 2D noise for pathd
+
+local np_pathd = {
+	offset = 0,
+	scale = 1,
+	spread = {x=512, y=512, z=512},
+	seed = 300707,
+	octaves = 4,
+	persist = 0.33
+}
+
 -- 2D noise for trees
 
 local np_tree = {
@@ -112,9 +116,9 @@ minetest.register_node("path:path", {
 	sounds = default.node_sound_dirt_defaults(),
 })
 
-minetest.register_node("path:pathslab", {
+minetest.register_node("path:pathslab", { -- pathside texture darker because sunlight propagates = true
 	description = "Path slab",
-	tiles = {"path_path.png"},
+	tiles = {"path_path.png", "path_pathside.png", "path_pathside.png"},
 	drawtype = "nodebox",
 	paramtype = "light",
 	is_ground_content = false,
@@ -285,10 +289,10 @@ minetest.register_on_generated(function(minp, maxp, seed)
 	local minposxz = {x=x0-1, y=z0-1}
 	
 	local nvals_terrain = minetest.get_perlin_map(np_terrain, chulensxz):get2dMap_flat(minposxz)
-	local nvals_mount = minetest.get_perlin_map(np_mount, chulensxz):get2dMap_flat(minposxz)
 	local nvals_patha = minetest.get_perlin_map(np_patha, chulensxz):get2dMap_flat(minposxz)
 	local nvals_pathb = minetest.get_perlin_map(np_pathb, chulensxz):get2dMap_flat(minposxz)
 	local nvals_pathc = minetest.get_perlin_map(np_pathc, chulensxz):get2dMap_flat(minposxz)
+	local nvals_pathd = minetest.get_perlin_map(np_pathd, chulensxz):get2dMap_flat(minposxz)
 	local nvals_tree = minetest.get_perlin_map(np_tree, chulensxz):get2dMap_flat(minposxz)
 	
 	local nixz = 1
@@ -300,13 +304,15 @@ minetest.register_on_generated(function(minp, maxp, seed)
 			local n_xprepatha = false
 			local n_xprepathb = false
 			local n_xprepathc = false
-			local fimadep = math.max(DEPSEL * (1 - (y - YWAT) / YROCK), 0)
+			local n_xprepathd = false
+			local fimadep = math.max(DEPSEL * (1 - (y - YWAT) / YROCK), 1)
 			for x = x0-1, x1 do
 				local nodid = data[vi]
 				local nodidu = data[viu]
 				local n_zprepatha = nvals_patha[(nixz - overlen)]
 				local n_zprepathb = nvals_pathb[(nixz - overlen)]
 				local n_zprepathc = nvals_pathc[(nixz - overlen)]
+				local n_zprepathd = nvals_pathd[(nixz - overlen)]
 				local chunk = (x >= x0 and z >= z0)
 				local n_tree = math.min(math.max(nvals_tree[nixz], 0), 1)
 				
@@ -319,13 +325,15 @@ minetest.register_on_generated(function(minp, maxp, seed)
 				local n_pathc = nvals_pathc[nixz]
 				local n_abspathc = math.abs(n_pathc)
 
+				local n_pathd = nvals_pathd[nixz]
+				local n_abspathd = math.abs(n_pathd)
+
 				local n_terrain = nvals_terrain[nixz]
-				local n_mount = nvals_mount[nixz]
 				local ysurf = YCEN
-				+ math.floor((n_terrain + n_abspatha ^ 2 * n_abspathb ^ 2 * n_mount * 32) * TERSCA)
+				+ math.floor(n_terrain * (1 + n_abspatha ^ 2 * n_abspathb ^ 2 * 32) * TERSCA)
 
 				if chunk then
-					if y == ysurf and y > YBTOP and y < YROCK then
+					if y == ysurf and y > YBTOP then
 						if ((n_patha >= 0 and n_xprepatha < 0)
 						or (n_patha < 0 and n_xprepatha >= 0))
 						or ((n_patha >= 0 and n_zprepatha < 0)
@@ -412,7 +420,45 @@ minetest.register_on_generated(function(minp, maxp, seed)
 									local via = area:index(x+i, y+1, z+k)
 									local nodid = data[vi]
 									local nodida = data[via]
-									if nodid ~= c_roadblack then
+									if nodid ~= c_roadblack
+									and nodid ~= c_roadwhite then
+										data[vi] = c_path
+										if nodida == c_grass then
+											data[via] = c_air
+										end
+									end
+								elseif radsq <= 5 then
+									local vi = area:index(x+i, y, z+k)
+									local via = area:index(x+i, y+1, z+k)
+									local nodid = data[vi]
+									local nodida = data[via]
+									if nodid ~= c_roadblack
+									and nodid ~= c_roadwhite
+									and nodid ~= c_path
+									and nodid ~= c_grass
+									and nodid ~= c_dirt then
+										data[vi] = c_pathslab
+										if nodida == c_grass then
+											data[via] = c_air
+										end
+									end
+								end
+							end
+							end
+						elseif ((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
+							for i = -2, 2 do
+							for k = -2, 2 do
+								local radsq = (math.abs(i)) ^ 2 + (math.abs(k)) ^ 2
+								if radsq <= 2 then
+									local vi = area:index(x+i, y, z+k)
+									local via = area:index(x+i, y+1, z+k)
+									local nodid = data[vi]
+									local nodida = data[via]
+									if nodid ~= c_roadblack
+									and nodid ~= c_roadwhite then
 										data[vi] = c_path
 										if nodida == c_grass then
 											data[via] = c_air
@@ -443,7 +489,8 @@ minetest.register_on_generated(function(minp, maxp, seed)
 						and nodidu ~= c_roadslab
 						and nodidu ~= c_pathslab then
 							data[vi] = c_grass
-							if n_abspatha > TFLO and n_abspathb > TFLO and n_abspathc > TPFLO
+							if n_abspatha > TFLO and n_abspathb > TFLO
+							and n_abspathc > TPFLO and n_abspathd > TPFLO
 							and math.random() < APPCHA * n_tree and fimadep >= 2 then
 								path_appletree(x, y+1, z, area, data)
 							end
@@ -461,6 +508,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
 				n_xprepatha = n_patha
 				n_xprepathb = n_pathb
 				n_xprepathc = n_pathc
+				n_xprepathd = n_pathd
 				nixz = nixz + 1
 				nixyz = nixyz + 1
 				vi = vi + 1