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do not generate underwater

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M  mapgen.lua
This commit is contained in:
HybridDog 2016-09-13 12:32:11 +02:00
parent 40c8d1d6e3
commit f205e55c04
1 changed files with 31 additions and 12 deletions
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41
mapgen.lua
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@ -6,6 +6,7 @@ local function define_contents()
ignore = minetest.get_content_id("ignore"), ignore = minetest.get_content_id("ignore"),
air = minetest.get_content_id("air"), air = minetest.get_content_id("air"),
water = minetest.get_content_id("default:water_source"),
stone = minetest.get_content_id("default:stone"), stone = minetest.get_content_id("default:stone"),
dirt = minetest.get_content_id("default:dirt"), dirt = minetest.get_content_id("default:dirt"),
desert_sand = minetest.get_content_id("default:desert_sand"), desert_sand = minetest.get_content_id("default:desert_sand"),
@ -30,8 +31,8 @@ local function define_contents()
minetest.get_content_id("default:junglegrass"), minetest.get_content_id("default:junglegrass"),
}, },
USUAL_STUFF = { USUAL_STUFF = {
minetest.get_content_id("default:cactus"), [minetest.get_content_id("default:cactus")] = true,
minetest.get_content_id("default:papyrus"), [minetest.get_content_id("default:papyrus")] = true
}, },
} }
for name,data in pairs(minetest.registered_nodes) do for name,data in pairs(minetest.registered_nodes) do
@ -55,6 +56,27 @@ local function find_ground(a,list)
return false return false
end end
local grounds = {}
function is_ground(id)
local is = grounds[id]
if is ~= nil then
return is
end
local data = minetest.registered_nodes[minetest.get_name_from_content_id(id)]
if not data then
grounds[id] = false
return false
end
local groups = data.groups
if groups
and (groups.crumbly == 3 or groups.soil == 1) then
grounds[id] = true
return true
end
grounds[id] = false
return false
end
local data, area local data, area
function riesenpilz_circle(nam, pos, radius, chance) function riesenpilz_circle(nam, pos, radius, chance)
@ -180,7 +202,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
if in_biome then if in_biome then
local ymin = math.max(heightmap[hmi]-5, minp.y) -- -1 local ymin = math.max(heightmap[hmi]-5, minp.y)
-- skip the air part -- skip the air part
local ground local ground
@ -196,16 +218,13 @@ minetest.register_on_generated(function(minp, maxp, seed)
for y = ground,ymin,-1 do for y = ground,ymin,-1 do
local p_pos = area:index(x, y, z) local p_pos = area:index(x, y, z)
local d_p_pos = data[p_pos] local d_p_pos = data[p_pos]
for _,nam in pairs(c.USUAL_STUFF) do --remove usual stuff if c.USUAL_STUFF[d_p_pos] then --remove usual stuff
if d_p_pos == nam then
data[p_pos] = c.air data[p_pos] = c.air
p_pos = nil else
break if d_p_pos ~= c.water
end and is_ground(d_p_pos) then --else search ground_y
end
if p_pos --else search ground_y
and find_ground(d_p_pos, c.GROUND) then
ground_y = y ground_y = y
end
break break
end end
end end