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
|
-- Returns a list of areas that include the provided position
function areas:getAreasAtPos(pos)
local a = {}
local px, py, pz = pos.x, pos.y, pos.z
for id, area in pairs(self.areas) do
local ap1, ap2 = area.pos1, area.pos2
if px >= ap1.x and px <= ap2.x and
py >= ap1.y and py <= ap2.y and
pz >= ap1.z and pz <= ap2.z then
a[id] = area
end
end
return a
end
-- Checks if the area is unprotected or owned by you
function areas:canInteract(pos, name)
if minetest.check_player_privs(name, {areas=true}) then
return true
end
local owned = false
for _, area in pairs(self:getAreasAtPos(pos)) do
if area.owner == name or area.open then
return true
else
owned = true
end
end
return not owned
end
-- Returns a table (list) of all players that own an area
function areas:getNodeOwners(pos)
local owners = {}
for _, area in pairs(self:getAreasAtPos(pos)) do
table.insert(owners, area.owner)
end
return owners
end
--- Checks if the area intersects with an area that the player can't interact in.
-- Note that this fails and returns false when the specified area is fully
-- owned by the player, but with miltiple protection zones, none of which
-- cover the entire checked area.
-- @return Boolean indicating whether the player can interact in that area.
-- @return Un-owned intersecting area id, if found.
function areas:canInteractInArea(pos1, pos2, name)
areas:sortPos(pos1, pos2)
-- First check for a fully enclosing owned area
for id, area in pairs(self.areas) do
-- A little optimization: isAreaOwner isn't necessary here
-- since we're iterating through all areas.
if area.owner == name and self:isSubarea(pos1, pos2, id) then
return true
end
end
-- Then check for intersecting non-owned areas
for id, area in pairs(self.areas) do
local p1, p2 = area.pos1, area.pos2
if (p1.x <= pos2.x and p2.x >= pos1.x) and
(p1.y <= pos2.y and p2.y >= pos1.y) and
(p1.z <= pos2.z and p2.z >= pos1.z) then
-- Found an intersecting area
if not areas:isAreaOwner(id, name) then
return false, id
end
end
end
return true
end
|
