Add workaround to fix broken double plants in v6
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@ -1729,12 +1729,13 @@ minetest.register_on_generated(function(minp, maxp, seed)
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----- The section to perform basic block overrides of the core mapgen generated world. -----
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----- The section to perform basic block overrides of the core mapgen generated world. -----
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-- Snow and sand fixes. This code implements snow consistency
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-- Snow and sand fixes. This code implements snow consistency
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-- and fixes floating sand.
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-- and fixes floating sand and cut plants.
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-- A snowy grass block must be below a top snow or snow block at all times.
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-- A snowy grass block must be below a top snow or snow block at all times.
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if minp.y <= mcl_vars.mg_overworld_max and maxp.y >= mcl_vars.mg_overworld_min then
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if emin.y <= mcl_vars.mg_overworld_max and emax.y >= mcl_vars.mg_overworld_min then
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-- v6 mapgen:
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-- v6 mapgen:
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-- Put top snow on snowy grass blocks. The mapgen does not generate the top snow on its own.
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-- Put top snow on snowy grass blocks. The mapgen does not generate the top snow on its own.
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if mg_name == "v6" then
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if mg_name == "v6" then
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-- FIXME: Cavegen and mudflow might screw this up and cause floating top snow to appear
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local snowdirt = minetest.find_nodes_in_area_under_air(minp, maxp, "mcl_core:dirt_with_grass_snow")
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local snowdirt = minetest.find_nodes_in_area_under_air(minp, maxp, "mcl_core:dirt_with_grass_snow")
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for n = 1, #snowdirt do
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for n = 1, #snowdirt do
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-- CHECKME: What happens at chunk borders?
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-- CHECKME: What happens at chunk borders?
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@ -1743,10 +1744,38 @@ minetest.register_on_generated(function(minp, maxp, seed)
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data[p_pos] = c_top_snow
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data[p_pos] = c_top_snow
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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 #snowdirt > 1 then
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if #snowdirt > 0 then
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lvm_used = true
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lvm_used = true
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end
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end
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--[[ Remove broken double plants caused by v6 weirdness.
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v6 might break the bottom part of double plants because of how it works.
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There are 3 possibilities:
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1) Jungle: Top part is placed on top of a jungle tree or fern (=v6 jungle grass).
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This is because the schematic might be placed even if some nodes of it
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could not be placed because the destination was already occupied.
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TODO: A better fix for this would be if schematics could abort placement
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altogether if ANY of their nodes could not be placed.
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2) Cavegen: Removes the bottom part, the upper part floats
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3) Mudflow: Same as 2) ]]
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local plants = minetest.find_nodes_in_area(emin, emax, "group:double_plant")
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for n = 1, #plants do
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local node = vm:get_node_at(plants[n])
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local is_top = minetest.get_item_group(node.name, "double_plant") == 2
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if is_top then
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local p_pos = area:index(plants[n].x, plants[n].y-1, plants[n].z)
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if p_pos then
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node = vm:get_node_at({x=plants[n].x, y=plants[n].y-1, z=plants[n].z})
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local is_bottom = minetest.get_item_group(node.name, "double_plant") == 1
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if not is_bottom then
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p_pos = area:index(plants[n].x, plants[n].y, plants[n].z)
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data[p_pos] = c_air
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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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-- Non-v6 mapgens:
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-- Non-v6 mapgens:
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-- Clear snowy grass blocks without snow above to ensure consistency.
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-- Clear snowy grass blocks without snow above to ensure consistency.
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