forked from Mineclonia/Mineclonia
Refactor mcl_mapgen_core and improve mg performace
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Wuzzy
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9a67b90538
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@ -1287,28 +1287,60 @@ minetest.register_on_generated(function(minp, maxp)
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local area = VoxelArea:new({MinEdge=emin, MaxEdge=emax})
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local lvm_used = false
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local ymin, ymax
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-- Generate basic layer-based nodes: void, bedrock, realm barrier, lava seas, etc.
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-- Also perform some basic node replacements.
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if maxp.y <= GEN_MAX then
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for y = minp.y, math.min(maxp.y, GEN_MAX) do
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-- Helper function to set all nodes in the layers between min and max.
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-- content_id: Node to set
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-- check: optional.
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-- If content_id, node will be set only if it is equal to check.
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-- If function(pos_to_check, content_id_at_this_pos), will set node only if returns true.
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-- min, max: Minimum and maximum Y levels of the layers to set
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-- minp, maxp: minp, maxp of the on_generated
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-- lvm_used: Set to true if any node in this on_generated has been set before.
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--
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-- returns true if any node was set and lvm_used otherwise
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local function set_layers(content_id, check, min, max, minp, maxp, lvm_used)
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if (maxp.y >= min and minp.y <= max) then
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for y = math.max(min, minp.y), math.min(max, maxp.y) do
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for x = minp.x, maxp.x do
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for z = minp.z, maxp.z do
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local p_pos = area:index(x, y, z)
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-- The void
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if mcl_util.is_in_void({x=x,y=y,z=z}) then
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data[p_pos] = c_void
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if check then
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if type(check) == "function" and check({x=x,y=y,z=z}, data[p_pos]) then
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data[p_pos] = content_id
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lvm_used = true
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-- Realm barrier between the Overworld void and the End
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elseif y >= mcl_vars.mg_realm_barrier_overworld_end_min and y <= mcl_vars.mg_realm_barrier_overworld_end_max then
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data[p_pos] = c_realm_barrier
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elseif check == data[p_pos] then
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data[p_pos] = content_id
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lvm_used = true
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end
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else
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data[p_pos] = content_id
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lvm_used = true
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end
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end
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end
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end
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end
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return lvm_used
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end
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-- Bedrock layer checking (skip in singlenode)
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local bedrock = false
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if mg_name ~= "singlenode" and mcl_vars.mg_bedrock_is_rough then
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local is_bedrock = function(y)
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-- The Void
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lvm_used = set_layers(c_void, nil, -31000, mcl_vars.mg_nether_min-1, minp, maxp, lvm_used)
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lvm_used = set_layers(c_void, nil, mcl_vars.mg_nether_max+1, mcl_vars.mg_end_min-1, minp, maxp, lvm_used)
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lvm_used = set_layers(c_void, nil, mcl_vars.mg_end_max+1, mcl_vars.mg_realm_barrier_overworld_end_min-1, minp, maxp, lvm_used)
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lvm_used = set_layers(c_void, nil, mcl_vars.mg_realm_barrier_overworld_end_max+1, mcl_vars.mg_overworld_min-1, minp, maxp, lvm_used)
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-- Realm barrier between the Overworld void and the End
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lvm_used = set_layers(c_realm_barrier, nil, mcl_vars.mg_realm_barrier_overworld_end_min, mcl_vars.mg_realm_barrier_overworld_end_max, minp, maxp, lvm_used)
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-- Bedrock
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local bedrock_check
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if mcl_vars.mg_bedrock_is_rough then
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bedrock_check = function(pos)
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local y = pos.y
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-- Bedrock layers with increasing levels of roughness, until a perfecly flat bedrock later at the bottom layer
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-- This code assumes a bedrock height of 5 layers.
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@ -1339,40 +1371,23 @@ minetest.register_on_generated(function(minp, maxp)
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return math.random(1, top) <= top-1
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end
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if is_bedrock(y) then
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bedrock = true
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end
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elseif mg_name ~= "singlenode" then
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-- Perfectly flat bedrock layer(s)
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if (y >= mcl_vars.mg_bedrock_overworld_min and y <= mcl_vars.mg_bedrock_overworld_max) or
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(y >= mcl_vars.mg_bedrock_nether_bottom_min and y <= mcl_vars.mg_bedrock_nether_bottom_max) or
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(y >= mcl_vars.mg_bedrock_nether_top_min and y <= mcl_vars.mg_bedrock_nether_top_max) then
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bedrock = true
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end
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else
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bedrock_check = nil
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end
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-- No more transformations in singlenode
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if mg_name == "singlenode" then
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-- do nothing
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-- Bedrock, defined above
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elseif bedrock then
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data[p_pos] = c_bedrock
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lvm_used = true
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lvm_used = set_layers(c_bedrock, bedrock_check, mcl_vars.mg_bedrock_overworld_min, mcl_vars.mg_bedrock_overworld_max, minp, maxp, lvm_used)
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lvm_used = set_layers(c_bedrock, bedrock_check, mcl_vars.mg_bedrock_nether_bottom_min, mcl_vars.mg_bedrock_nether_bottom_max, minp, maxp, lvm_used)
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lvm_used = set_layers(c_bedrock, bedrock_check, mcl_vars.mg_bedrock_nether_top_min, mcl_vars.mg_bedrock_nether_top_max, minp, maxp, lvm_used)
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-- Flat Nether
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elseif mg_name == "flat" and y >= mcl_vars.mg_bedrock_nether_bottom_max + 4 and y <= mcl_vars.mg_bedrock_nether_bottom_max + 52 then
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data[p_pos] = c_air
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lvm_used = true
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if mg_name == "flat" then
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lvm_used = set_layers(c_air, nil, mcl_vars.mg_bedrock_nether_bottom_max + 4, mcl_vars.mg_bedrock_nether_bottom_max + 52, minp, maxp, lvm_used)
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end
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-- Big lava seas by replacing air below a certain height
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elseif mcl_vars.mg_lava and data[p_pos] == c_air and y <= mcl_vars.mg_lava_overworld_max and y >= mcl_vars.mg_overworld_min then
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data[p_pos] = c_lava
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lvm_used = true
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elseif mcl_vars.mg_lava and data[p_pos] == c_air and y <= mcl_vars.mg_lava_nether_max and y >= mcl_vars.mg_nether_min then
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data[p_pos] = c_nether_lava
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lvm_used = true
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end
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end
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end
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end
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if mcl_vars.mg_lava then
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lvm_used = set_layers(c_lava, c_air, mcl_vars.mg_overworld_min, mcl_vars.mg_lava_overworld_max, minp, maxp, lvm_used)
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lvm_used = set_layers(c_nether_lava, c_air, mcl_vars.mg_nether_min, mcl_vars.mg_lava_nether_max, minp, maxp, lvm_used)
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end
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----- Interactive block fixing section -----
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