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https://github.com/Splizard/minetest-mod-snow.git
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update mapgen_v6, e.g. replace plantlike plants to dry shrub and reduce snow height to make it smooth
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HybridDog
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@ -31,6 +31,7 @@ local function biome_to_string(num,num2)
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return biome
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end
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local function do_ws_func(a, x)
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local n = x/(16000)
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local y = 0
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@ -56,6 +57,28 @@ local function get_ws_list(a,x)
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return v
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end
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local plantlike_ids = {}
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local function is_plantlike(id)
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if plantlike_ids[id] ~= nil then
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return plantlike_ids[id]
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end
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local node = minetest.registered_nodes[minetest.get_name_from_content_id(id)]
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if not node then
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plantlike_ids[id] = false
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return false
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end
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local drawtype = node.drawtype
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if not drawtype
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or drawtype ~= "plantlike" then
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plantlike_ids[id] = false
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return false
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end
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plantlike_ids[id] = true
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return true
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end
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-- On generated function
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minetest.register_on_generated(function(minp, maxp, seed)
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@ -183,12 +206,11 @@ minetest.register_on_generated(function(minp, maxp, seed)
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if ground_y then
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local node = area:index(x, ground_y, z)
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local c_ground = data[node]
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local abovenode = area:index(x, ground_y+1, z)
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if c_ground == c_dirt_with_grass then
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if alpine
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and test > 0.53 then
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snow_tab[num] = {abovenode, z, x, test}
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snow_tab[num] = {ground_y, z, x, test}
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num = num+1
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-- generate stone ground
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for y = ground_y, math.max(-6, minp.y-6), -1 do
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@ -201,57 +223,16 @@ minetest.register_on_generated(function(minp, maxp, seed)
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elseif shrubs
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and pr:next(1,28) == 1 then
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data[node] = c_dirt_with_snow
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data[abovenode] = c_dry_shrub
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data[area:index(x, ground_y+1, z)] = c_dry_shrub
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elseif pines
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and pr:next(1,36) == 1 then
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data[node] = c_dirt_with_snow
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spawn_pine({x=x, y=ground_y+1, z=z}, area, data)
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else
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data[node] = c_dirt_with_snow
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snow_tab[num] = {abovenode, z, x, test}
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snow_tab[num] = {ground_y, z, x, test}
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num = num+1
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end
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elseif c_ground == c_sand then
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if icy then
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data[node] = c_ice
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end
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snow_tab[num] = {abovenode, z, x, test}
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num = num+1
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elseif c_ground == c_leaves
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or c_ground == c_jungleleaves
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or c_ground == c_apple then
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if alpine then
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snow_tab[num] = {abovenode, z, x, test}
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num = num+1
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-- make stone pillars out of trees
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for y = ground_y, math.max(-6, minp.y-6), -1 do
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local stone = area:index(x, y, z)
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if data[stone] == c_stone then
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break
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end
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data[stone] = c_stone
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end
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else
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-- put snow onto leaves
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snow_tab[num] = {abovenode, z, x, test}
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num = num+1
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end
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elseif c_ground == c_junglegrass then
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data[node] = c_dry_shrub
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elseif c_ground == c_papyrus then
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snow_tab[num] = {abovenode, z, x, test}
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num = num+1
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-- replace papyrus plants with snowblocks
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local y = ground_y
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for _ = 1,7 do
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local vi = area:index(x, y, z)
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if data[vi] == c_papyrus then
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data[vi] = c_snow_block
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y = y-1
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else
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break
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end
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end
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elseif c_ground == c_water then
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if not icesheet
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and not icecave
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@ -308,10 +289,56 @@ minetest.register_on_generated(function(minp, maxp, seed)
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end
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if icesheet then
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-- put snow onto icesheets
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snow_tab[num] = {abovenode, z, x, test}
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snow_tab[num] = {ground_y, z, x, test}
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num = num+1
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end
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end
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elseif c_ground == c_leaves
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or c_ground == c_jungleleaves
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or c_ground == c_apple then
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if alpine then
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snow_tab[num] = {ground_y, z, x, test}
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num = num+1
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-- make stone pillars out of trees
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for y = ground_y, math.max(-6, minp.y-6), -1 do
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local stone = area:index(x, y, z)
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if data[stone] == c_stone then
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break
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end
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data[stone] = c_stone
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end
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else
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-- put snow onto leaves
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snow_tab[num] = {ground_y, z, x, test}
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num = num+1
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end
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elseif c_ground == c_sand then
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if icy then
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data[node] = c_ice
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end
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snow_tab[num] = {ground_y, z, x, test}
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num = num+1
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elseif c_ground == c_papyrus then
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snow_tab[num] = {ground_y, z, x, test}
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num = num+1
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-- replace papyrus plants with snowblocks
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local y = ground_y
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for _ = 1,7 do
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local vi = area:index(x, y, z)
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if data[vi] == c_papyrus then
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data[vi] = c_snow_block
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y = y-1
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else
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break
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end
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end
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elseif is_plantlike(c_ground) then
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local vi = area:index(x, ground_y-1, z)
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if data[vi] == c_dirt_with_grass then
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-- replace other plants with dry shrubs
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data[vi] = c_dirt_with_snow
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data[node] = c_dry_shrub
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end
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end
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end
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end
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@ -321,11 +348,13 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local param2s
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if num ~= 1 then
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for _,i in pairs(snow_tab) do
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-- set snow
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data[area:index(i[3], i[1]+1, i[2])] = c_snow
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end
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local wsz, wsx
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for _,i in pairs(snow_tab) do
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local p,z,x,test = unpack(i)
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-- snow is set
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data[p] = c_snow
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local y,z,x,test = unpack(i)
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test = (test-0.73)/0.27 -- /(1-0.73)
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if test > 0 then
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local maxh = math.floor(test*10)%10+1
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@ -336,20 +365,35 @@ minetest.register_on_generated(function(minp, maxp, seed)
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end
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local h = math.floor(wsx[x]+wsz[z]*5)%10+1
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if h ~= 1 then
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if h == 10 then
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-- search for nearby snow
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y = y+1
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for i = -1,1,2 do
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for _,cord in pairs({{x+i,z}, {x,z+i}}) do
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local nd = data[area:index(cord[1], y, cord[2])]
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if nd == c_air
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or nd == c_dry_shrub then
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h = h/2
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end
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end
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end
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h = math.floor(h+0.5)
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if h > 1 then
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-- make snowdrifts walkable
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if h == 10 then
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h = 5
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end
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h = math.min(maxh, h)
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local vi = area:index(x, y, z)
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if h == 9 then
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-- replace the snow with a snowblock because its a full node
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data[p] = c_snow_block
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data[vi] = c_snow_block
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else
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-- set a specific snow height
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if not param2s then
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param2s = vm:get_param2_data()
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end
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param2s[p] = h*7
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param2s[vi] = h*7
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end
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end
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end
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end
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