From 5f6039bc3c820d823a13e9f4925efc96b645337a Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Sat, 7 Apr 2012 14:09:07 +0300
Subject: [PATCH] papyrus generation
---
mods/default/mapgen.lua | 34 +++++++++++++++++++++++++++++++++-
1 file changed, 33 insertions(+), 1 deletion(-)
diff --git a/mods/default/mapgen.lua b/mods/default/mapgen.lua
index af94505..c6e7d24 100644
--- a/mods/default/mapgen.lua
+++ b/mods/default/mapgen.lua
@@ -68,13 +68,20 @@ local function generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume,
--print("generate_ore done")
end
+local function make_papyrus(pos, size)
+ for y=0,size-1 do
+ local p = {x=pos.x, y=pos.y+y, z=pos.z}
+ minetest.env:set_node(p, {name="default:papyrus"})
+ end
+end
+
minetest.register_on_generated(function(minp, maxp, seed)
generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed, 1/8/8/8, 5, -31000, 64)
generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+1, 1/16/16/16, 5, -5, 7)
generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+2, 1/12/12/12, 5, -16, -5)
generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+3, 1/9/9/9, 5, -31000, -17)
- -- Generate clay
if maxp.y >= 2 and minp.y <= 0 then
+ -- Generate clay
-- Assume X and Z lengths are equal
local divlen = 4
local divs = (maxp.x-minp.x)/divlen+1;
@@ -109,6 +116,31 @@ minetest.register_on_generated(function(minp, maxp, seed)
end
end
end
+ -- Generate papyrus
+ local perlin1 = minetest.env:get_perlin(354, 3, 0.7, 100)
+ -- Assume X and Z lengths are equal
+ local divlen = 8
+ local divs = (maxp.x-minp.x)/divlen+1;
+ for divx=0,divs-1 do
+ for divz=0,divs-1 do
+ local x0 = minp.x + math.floor((divx+0)*divlen)
+ local z0 = minp.z + math.floor((divz+0)*divlen)
+ local x1 = minp.x + math.floor((divx+1)*divlen)
+ local z1 = minp.z + math.floor((divz+1)*divlen)
+ -- Determine papyrus amount from perlin noise
+ local papyrus_amount = math.floor(perlin1:get2d({x=x0, y=z0}) * 45 - 20)
+ -- Find random positions for papyrus based on this random
+ local pr = PseudoRandom(seed+1)
+ for i=0,papyrus_amount do
+ local x = pr:next(x0, x1)
+ local z = pr:next(z0, z1)
+ if minetest.env:get_node({x=x,y=1,z=z}).name == "default:dirt_with_grass" and
+ minetest.env:find_node_near({x=x,y=1,z=z}, 1, "default:water_source") then
+ make_papyrus({x=x,y=2,z=z}, pr:next(2, 4))
+ end
+ end
+ end
+ end
end
end)