81 lines
2.4 KiB
Lua
81 lines
2.4 KiB
Lua
--[[
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FFIopt Demo - A demo mod for FFIopt Minetest mod
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(c) EvidenceBKidscode
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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--]]
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local log, profile = ffiopt_demo.log, ffiopt_demo.profile
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local minp, maxp = ffiopt_demo.minp, ffiopt_demo.maxp
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local c_stone = minetest.get_content_id("default:stone")
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local c_glass = minetest.get_content_id("default:glass")
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minetest.register_chatcommand("vm", {
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params = "",
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description = "VoxelManip demo",
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func = function()
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if not ffiopt_demo.emerged then
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return false, "Map not emerged, please issue /emerge first"
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end
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local histogram = {}
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log('Starting VoxelManip demo')
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log(string.format('Volume : %s to %s', minetest.pos_to_string(minp), minetest.pos_to_string(maxp)))
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profile.init()
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profile.start("total")
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local vm = minetest.get_voxel_manip()
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profile.start("read_from_map")
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local emin, emax = vm:read_from_map(minp, maxp)
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profile.stop("read_from_map")
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local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
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profile.start("get_data")
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local data = vm:get_data()
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profile.stop("get_data")
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profile.start("lua processing")
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-- Make some data processing on vmanip
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for z = minp.z, maxp.z do
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for y = minp.y, maxp.y do
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local vmix = area:index(minp.x, y, z)
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for x = minp.x, maxp.x do
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-- Compute an histogram for fun
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histogram[data[vmix]] = 1 + (histogram[data[vmix]] or 0)
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vmix = vmix + 1
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-- Do something visual : replace stone with glass and inversely
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if data[vmix] == c_stone then
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data[vmix] = c_glass
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elseif data[vmix] == c_glass then
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data[vmix] = c_stone
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end
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end
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end
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end
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profile.stop("lua processing")
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profile.start("set_data")
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vm:set_data(data)
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profile.stop("set_data")
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profile.start("write_to_map")
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vm:write_to_map(false)
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profile.stop("write_to_map")
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profile.stop("total")
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log('Ending VoxelManip demo')
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profile.show(log)
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end
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})
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