1 --- Generic node manipulations.
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2 -- @module worldedit.manipulations
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4 local mh = worldedit.manip_helpers
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7 --- Sets a region to `node_names`.
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10 -- @param node_names Node name or list of node names.
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11 -- @return The number of nodes set.
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12 function worldedit.set(pos1, pos2, node_names)
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13 pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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15 local manip, area = mh.init(pos1, pos2)
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16 local data = mh.get_empty_data(area)
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18 if type(node_names) == "string" then -- Only one type of node
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19 local id = minetest.get_content_id(node_names)
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20 -- Fill area with node
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21 for i in area:iterp(pos1, pos2) do
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24 else -- Several types of nodes specified
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26 for i, v in ipairs(node_names) do
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27 node_ids[i] = minetest.get_content_id(v)
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29 -- Fill area randomly with nodes
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30 local id_count, rand = #node_ids, math.random
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31 for i in area:iterp(pos1, pos2) do
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32 data[i] = node_ids[rand(id_count)]
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36 mh.finish(manip, data)
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38 return worldedit.volume(pos1, pos2)
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41 --- Sets param2 of a region.
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44 -- @param param2 Value of param2 to set
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45 -- @return The number of nodes set.
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46 function worldedit.set_param2(pos1, pos2, param2)
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47 pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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49 local manip, area = mh.init(pos1, pos2)
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50 local param2_data = manip:get_param2_data()
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52 -- Set param2 for every node
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53 for i in area:iterp(pos1, pos2) do
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54 param2_data[i] = param2
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58 manip:set_param2_data(param2_data)
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59 manip:write_to_map()
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62 return worldedit.volume(pos1, pos2)
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65 --- Replaces all instances of `search_node` with `replace_node` in a region.
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66 -- When `inverse` is `true`, replaces all instances that are NOT `search_node`.
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67 -- @return The number of nodes replaced.
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68 function worldedit.replace(pos1, pos2, search_node, replace_node, inverse)
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69 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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71 local manip, area = mh.init(pos1, pos2)
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72 local data = manip:get_data()
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74 local search_id = minetest.get_content_id(search_node)
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75 local replace_id = minetest.get_content_id(replace_node)
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80 for i in area:iterp(pos1, pos2) do
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81 if data[i] == search_id then
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82 data[i] = replace_id
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87 for i in area:iterp(pos1, pos2) do
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88 if data[i] ~= search_id then
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89 data[i] = replace_id
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95 mh.finish(manip, data)
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101 local function deferred_execution(next_one, finished)
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102 -- Allocate 100% of server step for execution (might lag a little)
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103 local allocated_usecs =
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104 tonumber(minetest.settings:get("dedicated_server_step")) * 1000000
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106 local deadline = minetest.get_us_time() + allocated_usecs
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108 local is_done = next_one()
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115 until minetest.get_us_time() >= deadline
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116 minetest.after(0, f)
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121 --- Duplicates a region `amount` times with offset vector `direction`.
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122 -- Stacking is spread across server steps.
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123 -- @return The number of nodes stacked.
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124 function worldedit.stack2(pos1, pos2, direction, amount, finished)
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125 -- Protect arguments from external changes during execution
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126 pos1 = table.copy(pos1)
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127 pos2 = table.copy(pos2)
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128 direction = table.copy(direction)
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131 local translated = {x=0, y=0, z=0}
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132 local function step()
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133 translated.x = translated.x + direction.x
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134 translated.y = translated.y + direction.y
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135 translated.z = translated.z + direction.z
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136 worldedit.copy2(pos1, pos2, translated)
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140 deferred_execution(step, finished)
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142 return worldedit.volume(pos1, pos2) * amount
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146 --- Copies a region along `axis` by `amount` nodes.
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149 -- @param axis Axis ("x", "y", or "z")
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151 -- @return The number of nodes copied.
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152 function worldedit.copy(pos1, pos2, axis, amount)
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153 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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155 local dim = vector.add(vector.subtract(pos2, pos1), 1)
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156 if amount > 0 and amount < dim[axis] then
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157 -- Source and destination region are overlapping and moving needs to
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158 -- happen in reverse.
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159 -- FIXME: I can't be bothered, so just defer to the legacy code for now.
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160 return worldedit.legacy_copy(pos1, pos2, axis, amount)
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163 local off = {x=0, y=0, z=0}
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165 return worldedit.copy2(pos1, pos2, off)
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168 -- This function is not offical part of the API and may be removed at any time.
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169 function worldedit.legacy_copy(pos1, pos2, axis, amount)
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170 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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172 worldedit.keep_loaded(pos1, pos2)
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174 local get_node, get_meta, set_node = minetest.get_node,
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175 minetest.get_meta, minetest.set_node
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176 -- Copy things backwards
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179 while pos.x >= pos1.x do
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181 while pos.y >= pos1.y do
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183 while pos.z >= pos1.z do
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184 local node = get_node(pos) -- Obtain current node
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185 local meta = get_meta(pos):to_table() -- Get meta of current node
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186 local value = pos[axis] -- Store current position
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187 pos[axis] = value + amount -- Move along axis
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188 set_node(pos, node) -- Copy node to new position
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189 get_meta(pos):from_table(meta) -- Set metadata of new node
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190 pos[axis] = value -- Restore old position
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197 return worldedit.volume(pos1, pos2)
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200 --- Copies a region by offset vector `off`.
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204 -- @return The number of nodes copied.
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205 function worldedit.copy2(pos1, pos2, off)
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206 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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208 local src_manip, src_area = mh.init(pos1, pos2)
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209 local src_stride = {x=1, y=src_area.ystride, z=src_area.zstride}
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210 local src_offset = vector.subtract(pos1, src_area.MinEdge)
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212 local dpos1 = vector.add(pos1, off)
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213 local dpos2 = vector.add(pos2, off)
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214 local dim = vector.add(vector.subtract(pos2, pos1), 1)
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216 local dst_manip, dst_area = mh.init(dpos1, dpos2)
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217 local dst_stride = {x=1, y=dst_area.ystride, z=dst_area.zstride}
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218 local dst_offset = vector.subtract(dpos1, dst_area.MinEdge)
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220 local function do_copy(src_data, dst_data)
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221 for z = 0, dim.z-1 do
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222 local src_index_z = (src_offset.z + z) * src_stride.z + 1 -- +1 for 1-based indexing
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223 local dst_index_z = (dst_offset.z + z) * dst_stride.z + 1
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224 for y = 0, dim.y-1 do
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225 local src_index_y = src_index_z + (src_offset.y + y) * src_stride.y
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226 local dst_index_y = dst_index_z + (dst_offset.y + y) * dst_stride.y
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227 -- Copy entire row at once
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228 local src_index_x = src_index_y + src_offset.x
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229 local dst_index_x = dst_index_y + dst_offset.x
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230 for x = 0, dim.x-1 do
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231 dst_data[dst_index_x + x] = src_data[src_index_x + x]
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238 local src_data = src_manip:get_data()
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239 local dst_data = dst_manip:get_data()
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240 do_copy(src_data, dst_data)
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241 dst_manip:set_data(dst_data)
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244 src_manip:get_light_data(src_data)
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245 dst_manip:get_light_data(dst_data)
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246 do_copy(src_data, dst_data)
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247 dst_manip:set_light_data(dst_data)
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250 src_manip:get_param2_data(src_data)
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251 dst_manip:get_param2_data(dst_data)
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252 do_copy(src_data, dst_data)
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253 dst_manip:set_param2_data(dst_data)
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255 mh.finish(dst_manip)
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260 local get_meta = minetest.get_meta
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261 for z = 0, dim.z-1 do
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262 for y = 0, dim.y-1 do
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263 for x = 0, dim.x-1 do
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264 local pos = {x=pos1.x+x, y=pos1.y+y, z=pos1.z+z}
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265 local meta = get_meta(pos):to_table()
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266 pos = vector.add(pos, off)
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267 get_meta(pos):from_table(meta)
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272 return worldedit.volume(pos1, pos2)
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275 --- Moves a region along `axis` by `amount` nodes.
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276 -- @return The number of nodes moved.
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277 function worldedit.move(pos1, pos2, axis, amount)
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278 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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280 local dim = vector.add(vector.subtract(pos2, pos1), 1)
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281 if math.abs(amount) < dim[axis] then
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282 -- Source and destination region are overlapping
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283 -- FIXME: I can't be bothered, so just defer to the legacy code for now.
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284 return worldedit.legacy_move(pos1, pos2, axis, amount)
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287 -- Copy stuff to new location
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288 local off = {x=0, y=0, z=0}
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290 worldedit.copy2(pos1, pos2, off)
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292 worldedit.set(pos1, pos2, "air")
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294 return worldedit.volume(pos1, pos2)
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297 -- This function is not offical part of the API and may be removed at any time.
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298 function worldedit.legacy_move(pos1, pos2, axis, amount)
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299 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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301 worldedit.keep_loaded(pos1, pos2)
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303 local get_node, get_meta, set_node, remove_node = minetest.get_node,
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304 minetest.get_meta, minetest.set_node, minetest.remove_node
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305 -- Copy things backwards when negative to avoid corruption.
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309 while pos.x <= pos2.x do
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311 while pos.y <= pos2.y do
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313 while pos.z <= pos2.z do
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314 local node = get_node(pos) -- Obtain current node
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315 local meta = get_meta(pos):to_table() -- Get metadata of current node
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316 remove_node(pos) -- Remove current node
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317 local value = pos[axis] -- Store current position
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318 pos[axis] = value + amount -- Move along axis
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319 set_node(pos, node) -- Move node to new position
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320 get_meta(pos):from_table(meta) -- Set metadata of new node
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321 pos[axis] = value -- Restore old position
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331 while pos.x >= pos1.x do
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333 while pos.y >= pos1.y do
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335 while pos.z >= pos1.z do
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336 local node = get_node(pos) -- Obtain current node
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337 local meta = get_meta(pos):to_table() -- Get metadata of current node
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338 remove_node(pos) -- Remove current node
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339 local value = pos[axis] -- Store current position
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340 pos[axis] = value + amount -- Move along axis
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341 set_node(pos, node) -- Move node to new position
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342 get_meta(pos):from_table(meta) -- Set metadata of new node
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343 pos[axis] = value -- Restore old position
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351 return worldedit.volume(pos1, pos2)
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355 --- Duplicates a region along `axis` `amount` times.
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356 -- Stacking is spread across server steps.
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359 -- @param axis Axis direction, "x", "y", or "z".
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361 -- @return The number of nodes stacked.
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362 function worldedit.stack(pos1, pos2, axis, count, finished)
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363 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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364 local length = pos2[axis] - pos1[axis] + 1
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370 local i, distance = 0, 0
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371 local function step()
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372 distance = distance + length
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373 worldedit.copy(pos1, pos2, axis, distance)
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377 deferred_execution(step, finished)
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379 return worldedit.volume(pos1, pos2) * count
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383 --- Stretches a region by a factor of positive integers along the X, Y, and Z
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384 -- axes, respectively, with `pos1` as the origin.
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387 -- @param stretch_x Amount to stretch along X axis.
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388 -- @param stretch_y Amount to stretch along Y axis.
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389 -- @param stretch_z Amount to stretch along Z axis.
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390 -- @return The number of nodes scaled.
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391 -- @return The new scaled position 1.
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392 -- @return The new scaled position 2.
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393 function worldedit.stretch(pos1, pos2, stretch_x, stretch_y, stretch_z)
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394 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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396 -- Prepare schematic of large node
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397 local get_node, get_meta, place_schematic = minetest.get_node,
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398 minetest.get_meta, minetest.place_schematic
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399 local placeholder_node = {name="", param1=255, param2=0}
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401 for i = 1, stretch_x * stretch_y * stretch_z do
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402 nodes[i] = placeholder_node
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404 local schematic = {size={x=stretch_x, y=stretch_y, z=stretch_z}, data=nodes}
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406 local size_x, size_y, size_z = stretch_x - 1, stretch_y - 1, stretch_z - 1
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409 x = pos1.x + (pos2.x - pos1.x) * stretch_x + size_x,
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410 y = pos1.y + (pos2.y - pos1.y) * stretch_y + size_y,
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411 z = pos1.z + (pos2.z - pos1.z) * stretch_z + size_z,
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413 worldedit.keep_loaded(pos1, new_pos2)
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415 local pos = {x=pos2.x, y=0, z=0}
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416 local big_pos = {x=0, y=0, z=0}
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417 while pos.x >= pos1.x do
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419 while pos.y >= pos1.y do
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421 while pos.z >= pos1.z do
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422 local node = get_node(pos) -- Get current node
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423 local meta = get_meta(pos):to_table() -- Get meta of current node
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425 -- Calculate far corner of the big node
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426 local pos_x = pos1.x + (pos.x - pos1.x) * stretch_x
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427 local pos_y = pos1.y + (pos.y - pos1.y) * stretch_y
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428 local pos_z = pos1.z + (pos.z - pos1.z) * stretch_z
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430 -- Create large node
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431 placeholder_node.name = node.name
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432 placeholder_node.param2 = node.param2
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433 big_pos.x, big_pos.y, big_pos.z = pos_x, pos_y, pos_z
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434 place_schematic(big_pos, schematic)
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436 -- Fill in large node meta
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437 if next(meta.fields) ~= nil or next(meta.inventory) ~= nil then
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438 -- Node has meta fields
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439 for x = 0, size_x do
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440 for y = 0, size_y do
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441 for z = 0, size_z do
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442 big_pos.x = pos_x + x
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443 big_pos.y = pos_y + y
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444 big_pos.z = pos_z + z
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445 -- Set metadata of new node
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446 get_meta(big_pos):from_table(meta)
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457 return worldedit.volume(pos1, pos2) * stretch_x * stretch_y * stretch_z, pos1, new_pos2
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461 --- Transposes a region between two axes.
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462 -- @return The number of nodes transposed.
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463 -- @return The new transposed position 1.
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464 -- @return The new transposed position 2.
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465 function worldedit.transpose(pos1, pos2, axis1, axis2)
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466 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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469 local extent1, extent2 = pos2[axis1] - pos1[axis1], pos2[axis2] - pos1[axis2]
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471 if extent1 > extent2 then
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472 compare = function(extent1, extent2)
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473 return extent1 > extent2
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476 compare = function(extent1, extent2)
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477 return extent1 < extent2
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481 -- Calculate the new position 2 after transposition
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482 local new_pos2 = {x=pos2.x, y=pos2.y, z=pos2.z}
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483 new_pos2[axis1] = pos1[axis1] + extent2
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484 new_pos2[axis2] = pos1[axis2] + extent1
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486 local upper_bound = {x=pos2.x, y=pos2.y, z=pos2.z}
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487 if upper_bound[axis1] < new_pos2[axis1] then upper_bound[axis1] = new_pos2[axis1] end
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488 if upper_bound[axis2] < new_pos2[axis2] then upper_bound[axis2] = new_pos2[axis2] end
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489 worldedit.keep_loaded(pos1, upper_bound)
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491 local pos = {x=pos1.x, y=0, z=0}
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492 local get_node, get_meta, set_node = minetest.get_node,
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493 minetest.get_meta, minetest.set_node
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494 while pos.x <= pos2.x do
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496 while pos.y <= pos2.y do
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498 while pos.z <= pos2.z do
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499 local extent1, extent2 = pos[axis1] - pos1[axis1], pos[axis2] - pos1[axis2]
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500 if compare(extent1, extent2) then -- Transpose only if below the diagonal
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501 local node1 = get_node(pos)
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502 local meta1 = get_meta(pos):to_table()
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503 local value1, value2 = pos[axis1], pos[axis2] -- Save position values
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504 pos[axis1], pos[axis2] = pos1[axis1] + extent2, pos1[axis2] + extent1 -- Swap axis extents
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505 local node2 = get_node(pos)
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506 local meta2 = get_meta(pos):to_table()
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507 set_node(pos, node1)
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508 get_meta(pos):from_table(meta1)
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509 pos[axis1], pos[axis2] = value1, value2 -- Restore position values
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510 set_node(pos, node2)
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511 get_meta(pos):from_table(meta2)
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519 return worldedit.volume(pos1, pos2), pos1, new_pos2
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523 --- Flips a region along `axis`.
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524 -- @return The number of nodes flipped.
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525 function worldedit.flip(pos1, pos2, axis)
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526 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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528 worldedit.keep_loaded(pos1, pos2)
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530 --- TODO: Flip the region slice by slice along the flip axis using schematic method.
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531 local pos = {x=pos1.x, y=0, z=0}
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532 local start = pos1[axis] + pos2[axis]
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533 pos2[axis] = pos1[axis] + math.floor((pos2[axis] - pos1[axis]) / 2)
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534 local get_node, get_meta, set_node = minetest.get_node,
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535 minetest.get_meta, minetest.set_node
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536 while pos.x <= pos2.x do
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538 while pos.y <= pos2.y do
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540 while pos.z <= pos2.z do
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541 local node1 = get_node(pos)
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542 local meta1 = get_meta(pos):to_table()
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543 local value = pos[axis] -- Save position
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544 pos[axis] = start - value -- Shift position
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545 local node2 = get_node(pos)
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546 local meta2 = get_meta(pos):to_table()
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547 set_node(pos, node1)
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548 get_meta(pos):from_table(meta1)
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549 pos[axis] = value -- Restore position
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550 set_node(pos, node2)
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551 get_meta(pos):from_table(meta2)
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558 return worldedit.volume(pos1, pos2)
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562 --- Rotates a region clockwise around an axis.
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565 -- @param axis Axis ("x", "y", or "z").
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566 -- @param angle Angle in degrees (90 degree increments only).
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567 -- @return The number of nodes rotated.
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568 -- @return The new first position.
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569 -- @return The new second position.
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570 function worldedit.rotate(pos1, pos2, axis, angle)
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571 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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573 local other1, other2 = worldedit.get_axis_others(axis)
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574 angle = angle % 360
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577 if angle == 90 then
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578 worldedit.flip(pos1, pos2, other1)
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579 count, pos1, pos2 = worldedit.transpose(pos1, pos2, other1, other2)
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580 elseif angle == 180 then
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581 worldedit.flip(pos1, pos2, other1)
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582 count = worldedit.flip(pos1, pos2, other2)
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583 elseif angle == 270 then
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584 worldedit.flip(pos1, pos2, other2)
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585 count, pos1, pos2 = worldedit.transpose(pos1, pos2, other1, other2)
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587 error("Only 90 degree increments are supported!")
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589 return count, pos1, pos2
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593 --- Rotates all oriented nodes in a region clockwise around the Y axis.
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596 -- @param angle Angle in degrees (90 degree increments only).
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597 -- @return The number of nodes oriented.
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598 function worldedit.orient(pos1, pos2, angle)
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599 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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600 local registered_nodes = minetest.registered_nodes
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602 local wallmounted = {
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603 [90] = {0, 1, 5, 4, 2, 3, 0, 0},
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604 [180] = {0, 1, 3, 2, 5, 4, 0, 0},
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605 [270] = {0, 1, 4, 5, 3, 2, 0, 0}
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608 [90] = { 1, 2, 3, 0, 13, 14, 15, 12, 17, 18, 19, 16,
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609 9, 10, 11, 8, 5, 6, 7, 4, 23, 20, 21, 22},
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610 [180] = { 2, 3, 0, 1, 10, 11, 8, 9, 6, 7, 4, 5,
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611 18, 19, 16, 17, 14, 15, 12, 13, 22, 23, 20, 21},
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612 [270] = { 3, 0, 1, 2, 19, 16, 17, 18, 15, 12, 13, 14,
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613 7, 4, 5, 6, 11, 8, 9, 10, 21, 22, 23, 20}
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616 angle = angle % 360
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620 if angle % 90 ~= 0 then
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621 error("Only 90 degree increments are supported!")
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623 local wallmounted_substitution = wallmounted[angle]
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624 local facedir_substitution = facedir[angle]
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626 worldedit.keep_loaded(pos1, pos2)
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629 local get_node, swap_node = minetest.get_node, minetest.swap_node
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630 local pos = {x=pos1.x, y=0, z=0}
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631 while pos.x <= pos2.x do
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633 while pos.y <= pos2.y do
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635 while pos.z <= pos2.z do
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636 local node = get_node(pos)
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637 local def = registered_nodes[node.name]
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639 local paramtype2 = def.paramtype2
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640 if paramtype2 == "wallmounted" or
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641 paramtype2 == "colorwallmounted" then
\r
642 local orient = node.param2 % 8
\r
643 node.param2 = node.param2 - orient +
\r
644 wallmounted_substitution[orient + 1]
\r
645 swap_node(pos, node)
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647 elseif paramtype2 == "facedir" or
\r
648 paramtype2 == "colorfacedir" then
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649 local orient = node.param2 % 32
\r
650 node.param2 = node.param2 - orient +
\r
651 facedir_substitution[orient + 1]
\r
652 swap_node(pos, node)
\r
666 --- Attempts to fix the lighting in a region.
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667 -- @return The number of nodes updated.
\r
668 function worldedit.fixlight(pos1, pos2)
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669 local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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671 local vmanip = minetest.get_voxel_manip(pos1, pos2)
\r
672 vmanip:write_to_map()
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673 vmanip:update_map() -- this updates the lighting
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675 return worldedit.volume(pos1, pos2)
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679 --- Clears all objects in a region.
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680 -- @return The number of objects cleared.
\r
681 function worldedit.clear_objects(pos1, pos2)
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682 pos1, pos2 = worldedit.sort_pos(pos1, pos2)
\r
684 worldedit.keep_loaded(pos1, pos2)
\r
686 -- Offset positions to include full nodes (positions are in the center of nodes)
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687 local pos1x, pos1y, pos1z = pos1.x - 0.5, pos1.y - 0.5, pos1.z - 0.5
\r
688 local pos2x, pos2y, pos2z = pos2.x + 0.5, pos2.y + 0.5, pos2.z + 0.5
\r
690 -- Center of region
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692 x = pos1x + ((pos2x - pos1x) / 2),
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693 y = pos1y + ((pos2y - pos1y) / 2),
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694 z = pos1z + ((pos2z - pos1z) / 2)
\r
696 -- Bounding sphere radius
\r
697 local radius = math.sqrt(
\r
698 (center.x - pos1x) ^ 2 +
\r
699 (center.y - pos1y) ^ 2 +
\r
700 (center.z - pos1z) ^ 2)
\r
702 for _, obj in pairs(minetest.get_objects_inside_radius(center, radius)) do
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703 local entity = obj:get_luaentity()
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704 -- Avoid players and WorldEdit entities
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705 if not obj:is_player() and (not entity or
\r
706 not entity.name:find("^worldedit:")) then
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707 local pos = obj:get_pos()
\r
708 if pos.x >= pos1x and pos.x <= pos2x and
\r
709 pos.y >= pos1y and pos.y <= pos2y and
\r
710 pos.z >= pos1z and pos.z <= pos2z then
\r