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lib_materials_ecosystems.lua

@@ -0,0 +1,91 @@
+--
+-- Register lib_materials ecosystems
+--
+-- Define constants that can be used in csv
+local heights = {
+	ocean_depth = lib_materials.ocean_depth,
+	beach_depth = lib_materials.beach_depth,
+	sea_level = lib_materials.sea_level,
+	beach = lib_materials.maxheight_beach,
+	coastal = lib_materials.maxheight_coastal,
+	lowland = lib_materials.maxheight_lowland,
+	shelf = lib_materials.maxheight_shelf,
+	highland = lib_materials.maxheight_highland,
+	mountain = lib_materials.maxheight_mountain,
+	snow_min = lib_materials.minheight_snow,
+	snow_max = lib_materials.maxheight_snow,
+	strato = lib_materials.maxheight_strato,
+}
+
+
+local function read_node_str(node_str)
+	if #node_str > 0 then
+		local node, count = node_str:match("([^%s]+)%s*(%d*)")
+		return node, tonumber(count) or 1
+	end
+end
+
+for i, ecosystem in ipairs(lib_materials.read_csv("|", lib_materials.path .. "/ecosystems.csv")) do
+	local oretype, orename, wherein, threshold, ymin, ymax, biome = unpack(ecosystem)
+	--minetest.log(oretype .. ", " .. orename .. ", " .. wherein .. ", " .. threshold .. ", " .. ymin .. ", " .. ymax .. ", " .. biome)
+
+	-- Parse node names: transform empty strings into nil and separate node and count
+	--b = read_node_str(b)
+	--local c1, c2 = read_node_str(c)
+
+	local spread_val = 2^(tonumber(threshold) * 10)
+	local ore_seed = math.random(1, spread_val)
+
+	--lib_materials.add_oredef(orename, ore_seed)
+
+	if oretype == "dirt" then
+		minetest.register_ore({
+			ore_type = "sheet",
+			ore = "lib_materials:" .. orename,
+			wherein = "lib_materials:" .. wherein,
+			clust_size = 8,
+			y_min = tonumber(ymin) or (heights[ymin] - lib_materials.biome_vertical_blend),
+			y_max = tonumber(ymax) or (heights[ymax] + lib_materials.biome_vertical_blend),
+			noise_threshold = tonumber(threshold),
+			noise_params = {
+				offset = 0,
+				scale = 1,
+				spread = {x = 128, y = 128, z = 128},
+				seed = ore_seed,
+				octaves = 5,
+				persist = 0.60
+			},
+			column_height_min = (lib_materials.biome_altitude_range / 2) + lib_materials.biome_vertical_blend,  --1
+			column_height_max = lib_materials.biome_altitude_range + (lib_materials.biome_vertical_blend * 2),
+			column_midpoint_factor = 0.5,
+	 		biomes = biome or nil
+		})
+	elseif oretype == "fungi" then
+		minetest.register_ore({
+			ore_type = "sheet",
+			ore = "lib_materials:" .. orename,
+			wherein = "lib_materials:" .. wherein,
+			clust_size = (tonumber(threshold) * 10),
+			y_min = tonumber(ymin),
+			y_max = tonumber(ymax),
+			noise_threshold = tonumber(threshold),
+			noise_params = {
+				offset = 0,
+				scale = 1,
+				spread = {x = spread_val, y = spread_val, z = spread_val},
+				seed = ore_seed,
+				octaves = 5,
+				persist = 0.60
+			},
+		        column_height_min = 1,
+		        column_height_max = lib_materials.biome_altitude_range,
+		        column_midpoint_factor = 0.5,
+	 		biomes = biome or nil
+		})
+	elseif oretype == "" then
+
+	else
+
+	end
+
+end