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mapgen: Fix removal of usual stuff and generate giant mushrooms not next to the chunk border

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This commit is contained in:
HybridDog 2018-08-07 11:53:18 +02:00
parent df97e1e4ee
commit 2f91256fbf
1 changed files with 69 additions and 22 deletions
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91
mapgen.lua
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@ -29,10 +29,6 @@ local function define_contents()
minetest.get_content_id("default:jungleleaves"),
minetest.get_content_id("default:junglegrass"),
},
USUAL_STUFF = {
[minetest.get_content_id("default:cactus")] = true,
[minetest.get_content_id("default:papyrus")] = true
},
}
end
@ -59,6 +55,27 @@ function is_ground(id)
return false
end
local toremoves = {}
function is_toremove(id)
local is = toremoves[id]
if is ~= nil then
return is
end
local data = minetest.registered_nodes[minetest.get_name_from_content_id(id)]
if not data then
toremoves[id] = false
return false
end
local groups = data.groups
if groups
and groups.flammable then
toremoves[id] = true
return true
end
toremoves[id] = false
return false
end
local data, area, pr
function riesenpilz_circle(nam, pos, radius, chance)
@ -74,6 +91,7 @@ function riesenpilz_circle(nam, pos, radius, chance)
end
end
-- perlin noise "hills" are not peaks but looking like sinus curve
local function upper_rarity(rarity)
return math.sign(rarity)*math.sin(math.abs(rarity)*math.pi/2)
@ -94,8 +112,6 @@ if smooth then
end
nosmooth_rarity = upper_rarity(nosmooth_rarity)
--local USUAL_STUFF = {"default:leaves","default:apple","default:tree","default:cactus","default:papyrus"}
local contents_defined
minetest.register_on_generated(function(minp, maxp, seed)
if maxp.y <= 0
@ -139,6 +155,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
local heightmap = minetest.get_mapgen_object("heightmap")
local hmi = 1
local hm_zstride = divs+1
local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
data = vm:get_data()
@ -196,12 +213,13 @@ minetest.register_on_generated(function(minp, maxp, seed)
if ground then
for y = ground, ymin, -1 do
local d_p_pos = data[vi]
if c.USUAL_STUFF[d_p_pos] then
if is_toremove(d_p_pos) then
-- remove trees etc.
data[vi] = c.air
else
if is_ground(d_p_pos) then
ground_y = y
heightmap[hmi] = y
end
break
end
@ -268,22 +286,51 @@ minetest.register_on_generated(function(minp, maxp, seed)
local t2 = os.clock()
for _,v in pairs(tab) do
local p = v[2]
local m = v[1]
if m == 1 then
riesenpilz.red(p, data, area)
elseif m == 2 then
riesenpilz.brown(p, data, area)
elseif m == 3 then
if not param2s then
param2s = vm:get_param2_data()
-- simple test for the distance to the biome border
local found_border = false
local dist = 5
local xmin = math.max(minp.x, p.x - dist)
local xmax = math.min(maxp.x, p.x + dist)
local hm_vi = (p.z - minp.z) * hm_zstride + xmin - minp.x + 1
for _ = xmin, xmax do
if not heightmap[hm_vi] then
found_border = true
break
end
hm_vi = hm_vi+1
end
if not found_border then
local zmin = math.max(minp.z, p.z - dist)
local zmax = math.min(maxp.z, p.z + dist)
hm_vi = (zmin - minp.z) * hm_zstride + p.x - minp.x + 1
for _ = zmin, zmax do
if not heightmap[hm_vi] then
found_border = true
break
end
hm_vi = hm_vi + hm_zstride
end
end
if not found_border then
local m = v[1]
if m == 1 then
riesenpilz.red(p, data, area)
elseif m == 2 then
riesenpilz.brown(p, data, area)
elseif m == 3 then
if not param2s then
param2s = vm:get_param2_data()
end
riesenpilz.fly_agaric(p, data, area, param2s)
elseif m == 4 then
riesenpilz.lavashroom(p, data, area)
elseif m == 5 then
riesenpilz.parasol(p, data, area)
elseif m == 6 then
riesenpilz.red45(p, data, area)
end
riesenpilz.fly_agaric(p, data, area, param2s)
elseif m == 4 then
riesenpilz.lavashroom(p, data, area)
elseif m == 5 then
riesenpilz.parasol(p, data, area)
elseif m == 6 then
riesenpilz.red45(p, data, area)
end
end
riesenpilz.inform("giant shrooms generated", 2, t2)