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
|
local world = require "world"
local obj = require "obj"
obj.load_types()
line = love.graphics.line
set_color = love.graphics.setColor
love.graphics.setLineWidth(0.5)
local cam = {
x = 0, y = 0,
scale = 256,
panning = false,
}
for i = 1, 100 do
obj.new("test", {math.random(1000), math.random(1000)})
end
local function view_scale()
local w, h = love.graphics.getDimensions()
return cam.scale / math.min(w, h)
end
local function view_transform()
local scale = view_scale()
local trans = love.math.newTransform(0, 0, 0, 1/scale, 1/scale)
trans:translate(cam.x, cam.y)
return trans
end
function love.draw()
love.graphics.clear(0,0,0)
love.graphics.applyTransform(view_transform())
for _, o in pairs(world.objects) do
love.graphics.setColor(1, 1, 1)
o:draw()
end
end
function love.update()
for _, o in pairs(world.objects) do
o:tick()
end
end
function love.mousepressed(_, _, button)
if button == 2 then
cam.panning = true
end
end
function love.mousereleased(_, _, button)
if button == 2 then
cam.panning = false
end
end
function love.mousemoved(_, _, dx, dy)
if cam.panning then
local scale = view_scale()
dx, dy = dx * scale, dy * scale
cam.x = cam.x + dx
cam.y = cam.y + dy
end
end
|
