forked from mtcontrib/minetest-mod-snow
buffer the perlin values
M src/mapgen_v6.lua
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bf113a15ff
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@ -186,6 +186,7 @@ local function get_perlins(sidelen)
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}
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end
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local nbuf_default, nbuf_cold, nbuf_ice
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minetest.register_on_generated(function(minp, maxp, seed)
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local t1 = os.clock()
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@ -209,7 +210,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local pines_tab,pnum = {},1
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get_perlins(x1 - x0 + 1)
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local nvals_default = perlin_objs.default:get2dMap_flat{x=x0+150, y=z0+50}
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local nvals_default = perlin_objs.default:get2dMap_flat({x=x0+150, y=z0+50}, nbuf_default)
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local nvals_cold, nvals_ice, ndia
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-- Choose biomes
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@ -236,9 +237,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local in_biome = false
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local test
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if nvals_default[ni] < 0.35 then
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if not nvals_cold then
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nvals_cold = perlin_objs.cold:get2dMap_flat{x=x0, y=z0}
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end
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nvals_cold = nvals_cold or perlin_objs.cold:get2dMap_flat({x=x0, y=z0}, nbuf_cold)
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test = math.min(nvals_cold[ni], 1)
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if smooth then
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if test >= smooth_rarity_max
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@ -289,9 +288,12 @@ minetest.register_on_generated(function(minp, maxp, seed)
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end
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end
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else
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nodes_added = true
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write_to_map = true
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nvals_ice = nvals_ice or perlin_objs.ice:get2dMap_flat{x=x0, y=z0}
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if not nvals_ice then
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nvals_ice = perlin_objs.ice:get2dMap_flat({x=x0, y=z0}, nbuf_ice)
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nodes_added = true
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write_to_map = true
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end
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local icetype = nvals_ice[ni]
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local cool = icetype > 0 -- only spawns ice on edge of water
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local icebergs = icetype > -0.2 and icetype <= 0
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