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
|
-- `Camera`
-- Used in drawing.
-- Metatable of `Camera`
Camera = {
x = 0,
y = 0,
follow = nil
}
-- Constructor of `Camera`
function Camera:new ()
local o = {}
setmetatable(o, self)
self.__index = self
o.follow = {}
return o
end
-- Drawing offsets
function Camera:getOffsets ()
return -self.x,-self.y
end
-- Position
function Camera:setPosition (x, y)
local x = x or 0
local y = y or 0
self.x, self.y = x, y
end
-- Add follow position
function Camera:addFollow (x, y, w)
local w = 1
if x ~= nil and y ~= nil then
table.insert(self.follow, {["x"] = x, ["y"] = y, ["w"] = w})
end
end
-- Move follow
function Camera:moveFollow ()
local x,y,i = 145, 90, 1
for k,point in pairs(Nauts) do
i = i + 1
x = math.max(math.min(point.body:getX(),290),0) + x
y = math.max(math.min(point.body:getY(),180),0) + y
end
x = x / i - 145
y = y / i - 90
self:setPosition(x,y)
end
|
