paramat/pathv6alt
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Generate paths 2 nodes beyond chunk edges to reduce mudflow griefing

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paramat 2014-09-14 05:19:57 +01:00
parent 98e48a30d0
commit ad6d50ff48
2 changed files with 19 additions and 16 deletions
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2
README.txt
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@ -1,4 +1,4 @@
pathv6alt 0.2.4 by paramat pathv6alt 0.2.5 by paramat
For latest stable Minetest back to 0.4.8 For latest stable Minetest back to 0.4.8
Depends default Depends default
Licenses: code WTFPL Licenses: code WTFPL

33
init.lua
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@ -1,10 +1,9 @@
-- pathv6alt 0.2.4 by paramat -- pathv6alt 0.2.5 by paramat
-- For latest stable Minetest and back to 0.4.8 -- For latest stable Minetest and back to 0.4.8
-- Depends default -- Depends default
-- License: code WTFPL -- License: code WTFPL
-- return to scanning for ground: more dirt paths -- generate paths outside chunk to avoid mudflow
-- tune steepness to 0.85
-- Parameters -- Parameters
@ -12,6 +11,8 @@ local WALK = true -- walkable paths
local HSAMP = 0.85 -- Height select amplitude. Maximum steepness of paths local HSAMP = 0.85 -- Height select amplitude. Maximum steepness of paths
local HSOFF = -0.2 -- Height select noise offset. Bias paths towards base (-) or higher (+) terrain local HSOFF = -0.2 -- Height select noise offset. Bias paths towards base (-) or higher (+) terrain
-- Mapgen v6 parameters
-- 2D noise for base terrain -- 2D noise for base terrain
local np_base = { local np_base = {
@ -41,7 +42,7 @@ local np_hselect = {
scale = 1, scale = 1,
spread = {x=250, y=250, z=250}, spread = {x=250, y=250, z=250},
seed = 4213, seed = 4213,
octaves = 5, -- default = 5 octaves = 5,
persist = 0.4 -- default = 0.69 persist = 0.4 -- default = 0.69
} }
@ -56,6 +57,8 @@ local np_mud = {
persist = 0.55 persist = 0.55
} }
-- Mod path parameters
-- 2D noise for patha -- 2D noise for patha
local np_patha = { local np_patha = {
@ -158,15 +161,15 @@ minetest.register_on_generated(function(minp, maxp, seed)
local c_pstairsw = minetest.get_content_id("pathv6alt:pstairsw") local c_pstairsw = minetest.get_content_id("pathv6alt:pstairsw")
local sidelen = x1 - x0 + 1 local sidelen = x1 - x0 + 1
local overlen = sidelen + 1 local overlen = sidelen + 5 -- noisemap x, z from minp-3 to maxp+2
local emerlen = sidelen + 32 -- voxelmanip emerged volume edge length for vvii local emerlen = sidelen + 32 -- voxelmanip emerged volume edge length for vvii
local chulens = {x=overlen, y=overlen, z=sidelen} local chulens = {x=overlen, y=overlen, z=sidelen}
local minpos = {x=x0-1, y=z0-1} local minpos = {x=x0-3, y=z0-3}
local nvals_base = minetest.get_perlin_map(np_base, chulens):get2dMap_flat({x=x0+124, y=z0+124}) -- offsets - 1 local nvals_base = minetest.get_perlin_map(np_base, chulens):get2dMap_flat({x=x0+122, y=z0+122}) -- noisemap offsets - 3
local nvals_higher = minetest.get_perlin_map(np_higher, chulens):get2dMap_flat({x=x0+249, y=z0+249}) local nvals_higher = minetest.get_perlin_map(np_higher, chulens):get2dMap_flat({x=x0+247, y=z0+247})
local nvals_hselect = minetest.get_perlin_map(np_hselect, chulens):get2dMap_flat({x=x0+124, y=z0+124}) local nvals_hselect = minetest.get_perlin_map(np_hselect, chulens):get2dMap_flat({x=x0+122, y=z0+122})
local nvals_mud = minetest.get_perlin_map(np_mud, chulens):get2dMap_flat({x=x0+99, y=z0+99}) local nvals_mud = minetest.get_perlin_map(np_mud, chulens):get2dMap_flat({x=x0+97, y=z0+97})
local nvals_patha = minetest.get_perlin_map(np_patha, chulens):get2dMap_flat(minpos) local nvals_patha = minetest.get_perlin_map(np_patha, chulens):get2dMap_flat(minpos)
local nvals_pathb = minetest.get_perlin_map(np_pathb, chulens):get2dMap_flat(minpos) local nvals_pathb = minetest.get_perlin_map(np_pathb, chulens):get2dMap_flat(minpos)
@ -175,13 +178,13 @@ minetest.register_on_generated(function(minp, maxp, seed)
local ni = 1 local ni = 1
local stable = {} local stable = {}
for z = z0 - 1, z1 do for z = z0 - 3, z1 + 2 do
local n_xprepatha = false local n_xprepatha = false
local n_xprepathb = false local n_xprepathb = false
local n_xprepathc = false local n_xprepathc = false
local n_xprepathd = false local n_xprepathd = false
for x = x0 - 1, x1 do for x = x0 - 3, x1 + 2 do -- x0-3, z0-3 is to setup initial values of 'xprepath_', 'zprepath_'
local chunk = x >= x0 and z >= z0 local pathgen = x >= x0 - 2 and z >= z0 - 2 -- paths overgenerate by 2 nodes to erase mudflow griefing
local n_patha = nvals_patha[ni] local n_patha = nvals_patha[ni]
local n_zprepatha = nvals_patha[(ni - overlen)] local n_zprepatha = nvals_patha[(ni - overlen)]
@ -195,7 +198,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
local n_pathd = nvals_pathd[ni] local n_pathd = nvals_pathd[ni]
local n_zprepathd = nvals_pathd[(ni - overlen)] local n_zprepathd = nvals_pathd[(ni - overlen)]
if chunk then if pathgen then
local base = nvals_base[ni] local base = nvals_base[ni]
local higher = nvals_higher[ni] local higher = nvals_higher[ni]
local hselect = nvals_hselect[ni] local hselect = nvals_hselect[ni]