1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
facedir_table = {}
--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}}}
facedir_table = {
[0] = {front = {x = 0, y = 0, z = -1},
top = {x = 0, y = 1, z = 0}},
[1] = {front = {x = -1, y = 0, z = 0},
top = {x = 0, y = 1, z = 0}},
[2] = {front = {x = 0, y = 0, z = 1},
top = {x = 0, y = 1, z = 0}},
[3] = {front = {x = 1, y = 0, z = 0},
top = {x = 0, y = 1, z = 0}},
[4] = {front = {x = 0, y = 1, z = 0},
top = {x = 0, y = 0, z = 1}},
[5] = {front = {x = -1, y = 0, z = 0},
top = {x = 0, y = 0, z = 1}},
[6] = {front = {x = 0, y = -1, z = 0},
top = {x = 0, y = 0, z = 1}},
[7] = {front = {x = 1, y = 0, z = 0},
top = {x = 0, y = 0, z = 1}},
[8] = {front = {x = 0, y = -1, z = 0},
top = {x = 0, y = 0, z = -1}},
[9] = {front = {x = -1, y = 0, z = 0},
top = {x = 0, y = 0, z = -1}},
[10] = {front = {x = 0, y = 1, z = 0},
top = {x = 0, y = 0, z = -1}},
[11] = {front = {x = 1, y = 0, z = 0},
top = {x = 0, y = 0, z = -1}},
[12] = {front = {x = 0, y = 0, z = -1},
top = {x = 1, y = 0, z = 0}},
[13] = {front = {x = 0, y = 1, z = 0},
top = {x = 1, y = 0, z = 0}},
[14] = {front = {x = 0, y = 0, z = 1},
top = {x = 1, y = 0, z = 0}},
[15] = {front = {x = 0, y = -1, z = 0},
top = {x = 1, y = 0, z = 0}},
[16] = {front = {x = 0, y = 0, z = -1},
top = {x = -1, y = 0, z = 0}},
[17] = {front = {x = 0, y = -1, z = 0},
top = {x = -1, y = 0, z = 0}},
[18] = {front = {x = 0, y = 0, z = 1},
top = {x = -1, y = 0, z = 0}},
[19] = {front = {x = 0, y = 1, z = 0},
top = {x = -1, y = 0, z = 0}},
[20] = {front = {x = 0, y = 0, z = -1},
top = {x = 0, y = -1, z = 0}},
[21] = {front = {x = 1, y = 0, z = 0},
top = {x = 0, y = -1, z = 0}},
[22] = {front = {x = 0, y = 0, z = 1},
top = {x = 0, y = -1, z = 0}},
[23] = {front = {x = -1, y = 0, z = 0},
top = {x = 0, y = -1, z = 0}},
}
local function table_pos(pos)
return "{x = "..pos.x..", y = "..pos.y..", z = "..pos.z.."}"
end
--print("facedir_table = {")
--for i = 0, 23 do
-- print(" ["..i.."] = {front = "..table_pos(facedir_table[i].front)..",")
-- print(" top = "..table_pos(facedir_table[i].top).."},")
--end
--print("}")
dirs_to_facedir_table = {}
local function dir_to_side(dir)
local a = dir.x + 2*dir.y + 3*dir.z
if a > 0 then
return a - 1
else
return 2 - a
end
end
local function side_to_dir(side)
return ({{x = 1, y = 0, z = 0},
{x = 0, y = 1, z = 0},
{x = 0, y = 0, z = 1},
{x = -1, y = 0, z = 0},
{x = 0, y = -1, z = 0},
{x = 0, y = 0, z = -1}})[side+1]
end
for i = 0, 5 do
assert(dir_to_side(side_to_dir(i)) == i)
end
for i = 0, 23 do
local top = dir_to_side(facedir_table[i].top)
local front = dir_to_side(facedir_table[i].front)
dirs_to_facedir_table[6*top+front] = i
end
--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}
for i = 0, 5 do
for j = 0, 5 do
if i%3 ~= j%3 then
local fd = dirs_to_facedir_table[6*i+j]
assert(dir_to_side(facedir_table[fd].top) == i)
assert(dir_to_side(facedir_table[fd].front) == j)
end
end
end
local function cross(a, b)
return {x = a.y*b.z - a.z*b.y,
y = a.z*b.x - a.x*b.z,
z = a.x*b.y - a.y*b.x}
end
local function facedir_from_dirs(top, front)
return dirs_to_facedir_table[6*dir_to_side(top)+dir_to_side(front)]
end
local function rv(v, dir)
local vs = dir_to_side(v)
local side = dir_to_side(dir)
if vs%3 == side%3 then
return v
else
return cross(v, dir)
end
end
local function rotate_from_side(facedir, dir)
local top = facedir_table[facedir].top
local front = facedir_table[facedir].front
return facedir_from_dirs(rv(top, dir), rv(front, dir))
end
local function rotate_side(facedir, side)
if side%3 == 1 then
if side == 1 then
return dir_to_side(facedir_table[facedir].top)
else
return (dir_to_side(facedir_table[facedir].top)+3)%6
end
elseif side%3 == 2 then
if side == 5 then
return dir_to_side(facedir_table[facedir].front)
else
return (dir_to_side(facedir_table[facedir].front)+3)%6
end
else
if side == 0 then
return dir_to_side(cross(facedir_table[facedir].front,facedir_table[facedir].top))
else
return dir_to_side(cross(facedir_table[facedir].top,facedir_table[facedir].front))
end
end
end
local color = 0
minetest.register_node("pipeworks:facedir_tester", {
description = "Facedir tester",
drawtype = "normal",
paramtype2 = "facedir",
tiles = {"pipeworks_red.png", "pipeworks_white.png", "pipeworks_white.png", "pipeworks_white.png", "pipeworks_white.png", "pipeworks_blue.png"},
on_punch = function(pos, node)
node.param2 = 0
minetest.set_node(pos, node)
end,
on_use = function(itemstack, user, pointed_thing)
if pointed_thing.type ~= "node" then return end
local pos = pointed_thing.under
local node = minetest.get_node(pos)
--if node.name ~= "pipeworks:facedir_tester" then return end
local dir = vector.subtract(pointed_thing.above, pointed_thing.under)
local facedir = node.param2
local msg
if color == 0 then
color = 1
msg = "Click BLUE side"
facedir_table[facedir].top = dir
else
color = 0
msg = "Click RED side"
facedir_table[facedir].front = dir
dirs_to_facedir_table[6*dir_to_side(facedir_table[facedir].top)+dir_to_side(dir)] = facedir
node.param2 = (facedir+1)%24
minetest.set_node(pos, node)
local r = vector.add(dir, minetest.facedir_to_dir(facedir))
if r.x ~= 0 or r.y ~= 0 or r.z ~= 0 then
print("WTF?????????????????????????????????????????????????????????????", facedir)
end
end
minetest.chat_send_player(user:get_player_name(), msg)
--node.param2 = rotate_from_side(facedir, dir)
--minetest.swap_node(pos, node)
end
})
tube_table = {}
tube_table_facedirs = {}
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}}
for index, tube in ipairs(tubes) do
for facedir = 23, 0, -1 do
local s = 0
for _, i in ipairs(tube) do
s = s+2^rotate_side(facedir, i)
end
tube_table[s] = index
tube_table_facedirs[s] = facedir
end
end
print(dump(tube_table))
print(dump(tube_table_facedirs))
local s = "tube_table = {[0] = "..tube_table[0]
for i = 1, 63 do
s = s..", "..tube_table[i]
end
s = s.."}"
print(s)
local s = "tube_table_facedirs = {[0] = "..tube_table_facedirs[0]
for i = 1, 63 do
s = s..", "..tube_table_facedirs[i]
end
s = s.."}"
print(s)
--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}
--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}
|
