94 lines
2.4 KiB
Lua
94 lines
2.4 KiB
Lua
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--[[
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Tube Library
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============
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Copyright (C) 2019 Joachim Stolberg
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Code derived from wordedit (sfan5, Anthony Zhang (Uberi/Temperest), and Brett O'Donnell (cornernote))
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LGPLv2.1+
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See LICENSE.txt for more information
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mark.lua:
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]]--
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local marker_region = {}
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function tubelib.unmark_region(name)
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if marker_region[name] ~= nil then --marker already exists
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--wip: make the area stay loaded somehow
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for _, entity in ipairs(marker_region[name]) do
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entity:remove()
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end
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marker_region[name] = nil
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end
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end
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function tubelib.mark_region(name, pos1, pos2)
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tubelib.unmark_region(name)
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local thickness = 0.2
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local sizex, sizey, sizez = (1 + pos2.x - pos1.x) / 2, (1 + pos2.y - pos1.y) / 2, (1 + pos2.z - pos1.z) / 2
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local markers = {}
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--XY plane markers
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for _, z in ipairs({pos1.z - 0.5, pos2.z + 0.5}) do
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local marker = minetest.add_entity({x=pos1.x + sizex - 0.5, y=pos1.y + sizey - 0.5, z=z}, "tubelib:region_cube")
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if marker ~= nil then
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marker:set_properties({
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visual_size={x=sizex * 2, y=sizey * 2},
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collisionbox = {-sizex, -sizey, -thickness, sizex, sizey, thickness},
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})
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marker:get_luaentity().player_name = name
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table.insert(markers, marker)
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end
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end
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--YZ plane markers
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for _, x in ipairs({pos1.x - 0.5, pos2.x + 0.5}) do
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local marker = minetest.add_entity({x=x, y=pos1.y + sizey - 0.5, z=pos1.z + sizez - 0.5}, "tubelib:region_cube")
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if marker ~= nil then
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marker:set_properties({
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visual_size={x=sizez * 2, y=sizey * 2},
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collisionbox = {-thickness, -sizey, -sizez, thickness, sizey, sizez},
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})
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marker:setyaw(math.pi / 2)
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marker:get_luaentity().player_name = name
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table.insert(markers, marker)
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end
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end
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marker_region[name] = markers
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end
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function tubelib.switch_region(name, pos1, pos2)
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if marker_region[name] ~= nil then --marker already exists
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tubelib.unmark_region(name)
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else
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tubelib.mark_region(name, pos1, pos2)
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end
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end
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minetest.register_entity(":tubelib:region_cube", {
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initial_properties = {
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visual = "upright_sprite",
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visual_size = {x=1.1, y=1.1},
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textures = {"tubelib_cube.png"},
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use_texture_alpha = true,
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visual_size = {x=10, y=10},
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physical = false,
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},
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on_step = function(self, dtime)
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if marker_region[self.player_name] == nil then
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self.object:remove()
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return
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end
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end,
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on_punch = function(self, hitter)
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tubelib.unmark_region(self.player_name)
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end,
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})
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