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mapgen_geodes.lua localise math

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localise math functions
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tenplus1 2024-12-13 08:00:57 +00:00 committed by GitHub
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1 changed files with 8 additions and 8 deletions
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mapgen_geodes.lua
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@ -36,9 +36,9 @@ local c_crystal = minetest.get_content_id("nether:geodelite") -- geodel
local c_netherrack = minetest.get_content_id("nether:rack") local c_netherrack = minetest.get_content_id("nether:rack")
local c_glowstone = minetest.get_content_id("nether:glowstone") local c_glowstone = minetest.get_content_id("nether:glowstone")
-- Math funcs -- Math funcs (avoid needing table lookups each time a common math function is invoked)
local math_max, math_min, math_abs, math_floor, math_pi = math.max, math.min, math.abs, math.floor, math.pi -- avoid needing table lookups each time a common math function is invoked local math_max, math_min, math_abs, math_floor, math_pi = math.max, math.min, math.abs, math.floor, math.pi
local math_cos, math_sin = math.cos, math.sin
-- Create a tiling space of close-packed spheres, using Hexagonal close packing -- Create a tiling space of close-packed spheres, using Hexagonal close packing
-- of spheres with radius 0.5. -- of spheres with radius 0.5.
@ -141,15 +141,15 @@ mapgen.getGeodeInteriorNodeId = function(x, y, z)
lastz = z lastz = z
-- Calculate structure warping -- Calculate structure warping
-- To avoid calculating this for each node there's no warping as you look along the x axis :( -- To avoid calculating this for each node there's no warping as you look along the x axis :(
adj_y = math.sin(math_pi / 222 * y) * 30 adj_y = math_sin(math_pi / 222 * y) * 30
if y ~= lasty then if y ~= lasty then
lasty = y lasty = y
warpx = math.sin(math_pi / 100 * y) * 10 warpx = math_sin(math_pi / 100 * y) * 10
warpz = math.sin(math_pi / 43 * y) * 15 warpz = math_sin(math_pi / 43 * y) * 15
end end
local twistRadians = math_pi / 73 * y local twistRadians = math_pi / 73 * y
local sinTwist, cosTwist = math.sin(twistRadians), math.cos(twistRadians) local sinTwist, cosTwist = math_sin(twistRadians), math_cos(twistRadians)
adj_x = cosTwist * warpx - sinTwist * warpz adj_x = cosTwist * warpx - sinTwist * warpz
adj_z = sinTwist * warpx + cosTwist * warpz adj_z = sinTwist * warpx + cosTwist * warpz
end end