1 worldedit = worldedit or {}
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2 local minetest = minetest --local copy of global
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4 --modifies positions `pos1` and `pos2` so that each component of `pos1` is less than or equal to its corresponding conent of `pos2`, returning two new positions
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5 worldedit.sort_pos = function(pos1, pos2)
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6 pos1 = {x=pos1.x, y=pos1.y, z=pos1.z}
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7 pos2 = {x=pos2.x, y=pos2.y, z=pos2.z}
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8 if pos1.x > pos2.x then
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9 pos2.x, pos1.x = pos1.x, pos2.x
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11 if pos1.y > pos2.y then
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12 pos2.y, pos1.y = pos1.y, pos2.y
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14 if pos1.z > pos2.z then
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15 pos2.z, pos1.z = pos1.z, pos2.z
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20 --determines the volume of the region defined by positions `pos1` and `pos2`, returning the volume
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21 worldedit.volume = function(pos1, pos2)
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22 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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23 return (pos2.x - pos1.x + 1) * (pos2.y - pos1.y + 1) * (pos2.z - pos1.z + 1)
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26 minetest.register_node("worldedit:placeholder", {
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27 drawtype = "airlike",
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28 paramtype = "light",
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29 sunlight_propagates = true,
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31 groups = {not_in_creative_inventory=1},
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34 --hides all nodes in a region defined by positions `pos1` and `pos2` by non-destructively replacing them with invisible nodes, returning the number of nodes hidden
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35 worldedit.hide = function(pos1, pos2)
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36 --make area stay loaded
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37 local manip = minetest.get_voxel_manip()
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38 manip:read_from_map(pos1, pos2)
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40 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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41 local pos = {x=pos1.x, y=0, z=0}
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42 local get_node, get_meta, add_node = minetest.get_node, minetest.get_meta, minetest.add_node
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43 while pos.x <= pos2.x do
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45 while pos.y <= pos2.y do
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47 while pos.z <= pos2.z do
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48 local node = get_node(pos)
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49 if node.name ~= "worldedit:placeholder" then
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50 local data = get_meta(pos):to_table() --obtain metadata of original node
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51 data.fields.worldedit_placeholder = node.name --add the node's name
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52 node.name = "worldedit:placeholder" --set node name
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53 add_node(pos, node) --add placeholder node
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54 get_meta(pos):from_table(data) --set placeholder metadata to the original node's metadata
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62 return worldedit.volume(pos1, pos2)
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65 --suppresses all instances of `nodename` in a region defined by positions `pos1` and `pos2` by non-destructively replacing them with invisible nodes, returning the number of nodes suppressed
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66 worldedit.suppress = function(pos1, pos2, nodename)
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67 --ignore placeholder supression
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68 if nodename == "worldedit:placeholder" then
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72 --make area stay loaded
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73 local manip = minetest.get_voxel_manip()
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74 manip:read_from_map(pos1, pos2)
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76 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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77 local nodes = minetest.find_nodes_in_area(pos1, pos2, nodename)
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78 local get_node, get_meta, add_node = minetest.get_node, minetest.get_meta, minetest.add_node
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79 for _, pos in ipairs(nodes) do
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80 local node = get_node(pos)
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81 local data = get_meta(pos):to_table() --obtain metadata of original node
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82 data.fields.worldedit_placeholder = node.name --add the node's name
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83 node.name = "worldedit:placeholder" --set node name
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84 add_node(pos, node) --add placeholder node
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85 get_meta(pos):from_table(data) --set placeholder metadata to the original node's metadata
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90 --highlights all instances of `nodename` in a region defined by positions `pos1` and `pos2` by non-destructively hiding all other nodes, returning the number of nodes found
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91 worldedit.highlight = function(pos1, pos2, nodename)
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92 --make area stay loaded
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93 local manip = minetest.get_voxel_manip()
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94 manip:read_from_map(pos1, pos2)
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96 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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97 local pos = {x=pos1.x, y=0, z=0}
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98 local get_node, get_meta, add_node = minetest.get_node, minetest.get_meta, minetest.add_node
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100 while pos.x <= pos2.x do
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102 while pos.y <= pos2.y do
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104 while pos.z <= pos2.z do
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105 local node = get_node(pos)
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106 if node.name == nodename then --node found
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108 elseif node.name ~= "worldedit:placeholder" then --hide other nodes
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109 local data = get_meta(pos):to_table() --obtain metadata of original node
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110 data.fields.worldedit_placeholder = node.name --add the node's name
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111 node.name = "worldedit:placeholder" --set node name
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112 add_node(pos, node) --add placeholder node
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113 get_meta(pos):from_table(data) --set placeholder metadata to the original node's metadata
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124 --restores all nodes hidden with WorldEdit functions in a region defined by positions `pos1` and `pos2`, returning the number of nodes restored
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125 worldedit.restore = function(pos1, pos2)
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126 --make area stay loaded
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127 local manip = minetest.get_voxel_manip()
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128 manip:read_from_map(pos1, pos2)
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130 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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131 local nodes = minetest.find_nodes_in_area(pos1, pos2, "worldedit:placeholder")
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132 local get_node, get_meta, add_node = minetest.get_node, minetest.get_meta, minetest.add_node
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133 for _, pos in ipairs(nodes) do
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134 local node = get_node(pos)
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135 local data = get_meta(pos):to_table() --obtain node metadata
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136 node.name = data.fields.worldedit_placeholder --set node name
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137 data.fields.worldedit_placeholder = nil --delete old nodename
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138 add_node(pos, node) --add original node
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139 get_meta(pos):from_table(data) --set original node metadata
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