231 lines
9.5 KiB
Lua
231 lines
9.5 KiB
Lua
facedir_table = {}
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--facedir_table = {[0] = {["front"] = {["y"] = 0, ["x"] = 0, ["z"] = -1}, ["top"] = {["y"] = 1, ["x"] = 0, ["z"] = 0}}, [1] = {["front"] = {["y"] = 0, ["x"] = -1, ["z"] = 0}, ["top"] = {["y"] = 1, ["x"] = 0, ["z"] = 0}}, [2] = {["front"] = {["y"] = 0, ["x"] = 0, ["z"] = 1}, ["top"] = {["y"] = 1, ["x"] = 0, ["z"] = 0}}, [3] = {["front"] = {["y"] = 0, ["x"] = 1, ["z"] = 0}, ["top"] = {["y"] = 1, ["x"] = 0, ["z"] = 0}}, [4] = {["front"] = {["y"] = 1, ["x"] = 0, ["z"] = 0}, ["top"] = {["y"] = 0, ["x"] = 0, ["z"] = 1}}, [5] = {["front"] = {["y"] = 0, ["x"] = -1, ["z"] = 0}, ["top"] = {["y"] = 0, ["x"] = 0, ["z"] = 1}}, [6] = {["front"] = {["y"] = -1, ["x"] = 0, ["z"] = 0}, ["top"] = {["y"] = 0, ["x"] = 0, ["z"] = 1}}, [7] = {["front"] = {["y"] = 0, ["x"] = 1, ["z"] = 0}, ["top"] = {["y"] = 0, ["x"] = 0, ["z"] = 1}}, [8] = {["front"] = {["y"] = -1, ["x"] = 0, ["z"] = 0}, ["top"] = {["y"] = 0, ["x"] = 0, ["z"] = -1}}, [9] = {["front"] = {["y"] = 0, ["x"] = -1, ["z"] = 0}, ["top"] = {["y"] = 0, ["x"] = 0, ["z"] = -1}}, [10] = {["front"] = {["y"] = 1, ["x"] = 0, ["z"] = 0}, ["top"] = {["y"] = 0, ["x"] = 0, ["z"] = -1}}, [11] = {["front"] = {["y"] = 0, ["x"] = 1, ["z"] = 0}, ["top"] = {["y"] = 0, ["x"] = 0, ["z"] = -1}}, [12] = {["front"] = {["y"] = 0, ["x"] = 0, ["z"] = -1}, ["top"] = {["y"] = 0, ["x"] = 1, ["z"] = 0}}, [13] = {["front"] = {["y"] = 1, ["x"] = 0, ["z"] = 0}, ["top"] = {["y"] = 0, ["x"] = 1, ["z"] = 0}}, [14] = {["front"] = {["y"] = 0, ["x"] = 0, ["z"] = 1}, ["top"] = {["y"] = 0, ["x"] = 1, ["z"] = 0}}, [15] = {["front"] = {["y"] = -1, ["x"] = 0, ["z"] = 0}, ["top"] = {["y"] = 0, ["x"] = 1, ["z"] = 0}}, [16] = {["front"] = {["y"] = 0, ["x"] = 0, ["z"] = -1}, ["top"] = {["y"] = 0, ["x"] = -1, ["z"] = 0}}, [17] = {["front"] = {["y"] = -1, ["x"] = 0, ["z"] = 0}, ["top"] = {["y"] = 0, ["x"] = -1, ["z"] = 0}}, [18] = {["front"] = {["y"] = 0, ["x"] = 0, ["z"] = 1}, ["top"] = {["y"] = 0, ["x"] = -1, ["z"] = 0}}, [19] = {["front"] = {["y"] = 1, ["x"] = 0, ["z"] = 0}, ["top"] = {["y"] = 0, ["x"] = -1, ["z"] = 0}}, [20] = {["front"] = {["y"] = 0, ["x"] = 0, ["z"] = -1}, ["top"] = {["y"] = -1, ["x"] = 0, ["z"] = 0}}, [21] = {["front"] = {["y"] = 0, ["x"] = 1, ["z"] = 0}, ["top"] = {["y"] = -1, ["x"] = 0, ["z"] = 0}}, [22] = {["front"] = {["y"] = 0, ["x"] = 0, ["z"] = 1}, ["top"] = {["y"] = -1, ["x"] = 0, ["z"] = 0}}, [23] = {["front"] = {["y"] = 0, ["x"] = -1, ["z"] = 0}, ["top"] = {["y"] = -1, ["x"] = 0, ["z"] = 0}}}
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facedir_table = {
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[0] = {front = {x = 0, y = 0, z = -1},
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top = {x = 0, y = 1, z = 0}},
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[1] = {front = {x = -1, y = 0, z = 0},
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top = {x = 0, y = 1, z = 0}},
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[2] = {front = {x = 0, y = 0, z = 1},
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top = {x = 0, y = 1, z = 0}},
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[3] = {front = {x = 1, y = 0, z = 0},
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top = {x = 0, y = 1, z = 0}},
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[4] = {front = {x = 0, y = 1, z = 0},
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top = {x = 0, y = 0, z = 1}},
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[5] = {front = {x = -1, y = 0, z = 0},
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top = {x = 0, y = 0, z = 1}},
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[6] = {front = {x = 0, y = -1, z = 0},
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top = {x = 0, y = 0, z = 1}},
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[7] = {front = {x = 1, y = 0, z = 0},
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top = {x = 0, y = 0, z = 1}},
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[8] = {front = {x = 0, y = -1, z = 0},
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top = {x = 0, y = 0, z = -1}},
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[9] = {front = {x = -1, y = 0, z = 0},
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top = {x = 0, y = 0, z = -1}},
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[10] = {front = {x = 0, y = 1, z = 0},
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top = {x = 0, y = 0, z = -1}},
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[11] = {front = {x = 1, y = 0, z = 0},
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top = {x = 0, y = 0, z = -1}},
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[12] = {front = {x = 0, y = 0, z = -1},
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top = {x = 1, y = 0, z = 0}},
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[13] = {front = {x = 0, y = 1, z = 0},
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top = {x = 1, y = 0, z = 0}},
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[14] = {front = {x = 0, y = 0, z = 1},
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top = {x = 1, y = 0, z = 0}},
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[15] = {front = {x = 0, y = -1, z = 0},
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top = {x = 1, y = 0, z = 0}},
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[16] = {front = {x = 0, y = 0, z = -1},
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top = {x = -1, y = 0, z = 0}},
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[17] = {front = {x = 0, y = -1, z = 0},
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top = {x = -1, y = 0, z = 0}},
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[18] = {front = {x = 0, y = 0, z = 1},
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top = {x = -1, y = 0, z = 0}},
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[19] = {front = {x = 0, y = 1, z = 0},
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top = {x = -1, y = 0, z = 0}},
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[20] = {front = {x = 0, y = 0, z = -1},
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top = {x = 0, y = -1, z = 0}},
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[21] = {front = {x = 1, y = 0, z = 0},
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top = {x = 0, y = -1, z = 0}},
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[22] = {front = {x = 0, y = 0, z = 1},
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top = {x = 0, y = -1, z = 0}},
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[23] = {front = {x = -1, y = 0, z = 0},
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top = {x = 0, y = -1, z = 0}},
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}
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local function table_pos(pos)
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return "{x = "..pos.x..", y = "..pos.y..", z = "..pos.z.."}"
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end
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--print("facedir_table = {")
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--for i = 0, 23 do
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-- print(" ["..i.."] = {front = "..table_pos(facedir_table[i].front)..",")
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-- print(" top = "..table_pos(facedir_table[i].top).."},")
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--end
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--print("}")
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dirs_to_facedir_table = {}
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local function dir_to_side(dir)
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local a = dir.x + 2*dir.y + 3*dir.z
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if a > 0 then
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return a - 1
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else
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return 2 - a
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end
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end
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local function side_to_dir(side)
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return ({{x = 1, y = 0, z = 0},
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{x = 0, y = 1, z = 0},
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{x = 0, y = 0, z = 1},
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{x = -1, y = 0, z = 0},
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{x = 0, y = -1, z = 0},
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{x = 0, y = 0, z = -1}})[side+1]
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end
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for i = 0, 5 do
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assert(dir_to_side(side_to_dir(i)) == i)
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end
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for i = 0, 23 do
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local top = dir_to_side(facedir_table[i].top)
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local front = dir_to_side(facedir_table[i].front)
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dirs_to_facedir_table[6*top+front] = i
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end
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--dirs_to_facedir_table = {13, 14, nil, 15, 12, 3, nil, 2, 1, nil, 0, 7, 4, nil, 5, 6, nil, nil, 19, 18, nil, 17, 16, 21, nil, 22, 23, nil, 20, 11, 10, nil, 9, 8}
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for i = 0, 5 do
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for j = 0, 5 do
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if i%3 ~= j%3 then
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local fd = dirs_to_facedir_table[6*i+j]
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assert(dir_to_side(facedir_table[fd].top) == i)
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assert(dir_to_side(facedir_table[fd].front) == j)
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end
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end
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end
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local function cross(a, b)
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return {x = a.y*b.z - a.z*b.y,
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y = a.z*b.x - a.x*b.z,
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z = a.x*b.y - a.y*b.x}
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end
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local function facedir_from_dirs(top, front)
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return dirs_to_facedir_table[6*dir_to_side(top)+dir_to_side(front)]
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end
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local function rv(v, dir)
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local vs = dir_to_side(v)
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local side = dir_to_side(dir)
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if vs%3 == side%3 then
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return v
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else
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return cross(v, dir)
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end
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end
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local function rotate_from_side(facedir, dir)
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local top = facedir_table[facedir].top
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local front = facedir_table[facedir].front
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return facedir_from_dirs(rv(top, dir), rv(front, dir))
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end
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local function rotate_side(facedir, side)
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if side%3 == 1 then
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if side == 1 then
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return dir_to_side(facedir_table[facedir].top)
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else
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return (dir_to_side(facedir_table[facedir].top)+3)%6
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end
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elseif side%3 == 2 then
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if side == 5 then
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return dir_to_side(facedir_table[facedir].front)
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else
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return (dir_to_side(facedir_table[facedir].front)+3)%6
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end
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else
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if side == 0 then
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return dir_to_side(cross(facedir_table[facedir].front,facedir_table[facedir].top))
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else
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return dir_to_side(cross(facedir_table[facedir].top,facedir_table[facedir].front))
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end
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end
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end
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local color = 0
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minetest.register_node("pipeworks:facedir_tester", {
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description = "Facedir tester",
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drawtype = "normal",
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paramtype2 = "facedir",
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tiles = {"pipeworks_red.png", "pipeworks_white.png", "pipeworks_white.png", "pipeworks_white.png", "pipeworks_white.png", "pipeworks_blue.png"},
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on_punch = function(pos, node)
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node.param2 = 0
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minetest.set_node(pos, node)
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end,
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on_use = function(itemstack, user, pointed_thing)
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if pointed_thing.type ~= "node" then return end
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local pos = pointed_thing.under
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local node = minetest.get_node(pos)
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--if node.name ~= "pipeworks:facedir_tester" then return end
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local dir = vector.subtract(pointed_thing.above, pointed_thing.under)
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local facedir = node.param2
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local msg
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if color == 0 then
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color = 1
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msg = "Click BLUE side"
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facedir_table[facedir].top = dir
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else
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color = 0
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msg = "Click RED side"
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facedir_table[facedir].front = dir
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dirs_to_facedir_table[6*dir_to_side(facedir_table[facedir].top)+dir_to_side(dir)] = facedir
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node.param2 = (facedir+1)%24
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minetest.set_node(pos, node)
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local r = vector.add(dir, minetest.facedir_to_dir(facedir))
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if r.x ~= 0 or r.y ~= 0 or r.z ~= 0 then
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print("WTF?????????????????????????????????????????????????????????????", facedir)
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end
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end
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minetest.chat_send_player(user:get_player_name(), msg)
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--node.param2 = rotate_from_side(facedir, dir)
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--minetest.swap_node(pos, node)
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end
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})
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tube_table = {}
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tube_table_facedirs = {}
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tubes = {{}, {0}, {0, 3}, {0, 1}, {0, 1, 2}, {0, 1, 3}, {0, 1, 2, 3}, {0, 1, 3, 4}, {0, 1, 2, 3, 4}, {0, 1, 2, 3, 4, 5}}
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for index, tube in ipairs(tubes) do
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for facedir = 23, 0, -1 do
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local s = 0
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for _, i in ipairs(tube) do
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s = s+2^rotate_side(facedir, i)
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end
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tube_table[s] = index
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tube_table_facedirs[s] = facedir
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end
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end
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print(dump(tube_table))
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print(dump(tube_table_facedirs))
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local s = "tube_table = {[0] = "..tube_table[0]
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for i = 1, 63 do
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s = s..", "..tube_table[i]
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end
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s = s.."}"
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print(s)
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local s = "tube_table_facedirs = {[0] = "..tube_table_facedirs[0]
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for i = 1, 63 do
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s = s..", "..tube_table_facedirs[i]
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end
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s = s.."}"
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print(s)
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--tube_table = {[0] = 1, 2, 2, 4, 2, 4, 4, 5, 2, 3, 4, 6, 4, 6, 5, 7, 2, 4, 3, 6, 4, 5, 6, 7, 4, 6, 6, 8, 5, 7, 7, 9, 2, 4, 4, 5, 3, 6, 6, 7, 4, 6, 5, 7, 6, 8, 7, 9, 4, 5, 6, 7, 6, 7, 8, 9, 5, 7, 7, 9, 7, 9, 9, 10}
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--tube_table_facedirs = {[0] = 0, 0, 5, 0, 3, 4, 3, 0, 2, 0, 2, 0, 6, 4, 3, 0, 7, 12, 5, 12, 7, 4, 5, 5, 18, 20, 16, 0, 7, 4, 7, 0, 1, 8, 1, 1, 1, 13, 1, 1, 10, 8, 2, 2, 17, 4, 3, 6, 9, 9, 9, 9, 21, 13, 1, 1, 10, 10, 11, 2, 19, 4, 3, 0}
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