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Papyrus: Add to the rainforest swamp biome

Previously, papyrus was limited to the savanna biome.
Rainforest is a suitable habitat for papyrus.
Makes papyrus a little less difficult to find.
Move swamp jungletrees into a separate registration, to allow
applying distribution by perlin noise to keep these away from
papyrus areas.

Fix error: Remove non-functional 'rainforest swamp' from the
biome list for the jungle log decoration. It is not placed in
swamps due to the 'y max/min' and 'place on' parameters.
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paramat committed Nov 15, 2019
1 parent 5017f3b commit 5b1875ef418163cc8e663a592f2995d0cdf66faf
Showing with 28 additions and 4 deletions.
  1. +28 −4 mods/default/mapgen.lua
@@ -1944,11 +1944,35 @@ function default.register_decorations()
minetest.register_decoration({
name = "default:jungle_tree",
deco_type = "schematic",
place_on = {"default:dirt_with_rainforest_litter", "default:dirt"},
place_on = {"default:dirt_with_rainforest_litter"},
sidelen = 80,
fill_ratio = 0.1,
biomes = {"rainforest", "rainforest_swamp"},
biomes = {"rainforest"},
y_max = 31000,
y_min = 1,
schematic = minetest.get_modpath("default") .. "/schematics/jungle_tree.mts",
flags = "place_center_x, place_center_z",
rotation = "random",
})

-- Swamp jungle trees

minetest.register_decoration({
name = "default:jungle_tree(swamp)",
deco_type = "schematic",
place_on = {"default:dirt"},
sidelen = 16,
-- Noise tuned to place swamp trees where papyrus is absent
noise_params = {
offset = 0.0,
scale = -0.1,
spread = {x = 200, y = 200, z = 200},
seed = 354,
octaves = 1,
persist = 0.5
},
biomes = {"rainforest_swamp"},
y_max = 0,
y_min = -1,
schematic = minetest.get_modpath("default") .. "/schematics/jungle_tree.mts",
flags = "place_center_x, place_center_z",
@@ -1962,7 +1986,7 @@ function default.register_decorations()
place_offset_y = 1,
sidelen = 80,
fill_ratio = 0.005,
biomes = {"rainforest", "rainforest_swamp"},
biomes = {"rainforest"},
y_max = 31000,
y_min = 1,
schematic = minetest.get_modpath("default") .. "/schematics/jungle_log.mts",
@@ -2185,7 +2209,7 @@ function default.register_decorations()
octaves = 3,
persist = 0.7
},
biomes = {"savanna_shore"},
biomes = {"savanna_shore", "rainforest_swamp"},
y_max = 0,
y_min = 0,
schematic = minetest.get_modpath("default") .. "/schematics/papyrus.mts",

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