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
|
local G = love.graphics
local common = require 'common'
local Camera = require'r.camera'
local Pos = require'r.pos'
local class = require'r.class'
local enet = require'enet'
local pprint = require'pprint'
local json = require'dkjson'
local rle = require'r.rle'
local M = {}
local SPEED = 8 -- tiles per second
local colors = {[true]={141/255,128/255,22/255}, [false]={71/255,50/255,122/255}}
local host = enet.host_create()
local conn = host:connect('localhost:19683')
local players = {}
local chunks = common.ChunkMap()
local lp = { pos=Pos(0,0), movetimer=0, dir=nil } -- local player
local cam = Camera(nil, 20)
local directions = {w=Pos(0,-1),a=Pos(-1,0),s=Pos(0,1),d=Pos(1,0)}
function M.keypressed(k,s,r)
if directions[s] then
if not love.keyboard.isScancodeDown('lshift') then lp.dir = s
else local tgt = lp.pos + directions[s]
local val = not chunks:tile(tgt); chunks:set_tile(tgt,val)
conn:send(json.encode{type='tile',pos=tgt,tile=val}) end
elseif s=='space' then cam.zoom = cam.zoom == 10 and 20 or 10 end end
function love.keyreleased(k,s) if s==lp.dir then lp.dir=nil end end
function lp.update(dt)
lp.movetimer = lp.movetimer - dt
if lp.movetimer <= 0 and lp.dir then
local d = directions[lp.dir] local newpos = lp.pos+d
if chunks:tile(newpos) == false then
conn:send(json.encode{type='move',pos=newpos})
lp.pos = newpos lp.movetimer = 1 / SPEED end end end
local function draw_player(p, c) G.setColor(c) G.circle('fill',p.x,p.y,0.3) end
function lp.draw() draw_player(lp.pos, {0,1,0}) end
function M.update(dt)
lp.update(dt)
local ev = host:service() while ev do
-- pprint(ev)
if ev.type == 'receive' then local j = json.decode(ev.data)
local pos if j.pos then pos = Pos(j.pos.x,j.pos.y) end
if j.type == 'player' then players[j.name] = {name=j.name,pos=pos}
elseif j.type == 'unplayer' then players[j.from] = nil
elseif j.type == 'move' then players[j.from].pos = pos
elseif j.type == 'chunk' then chunks:add(pos,{d=rle.decode(j.d)})
elseif j.type == 'unchunk' then chunks:remove(pos)
elseif j.type == 'tile' then chunks:set_tile(pos,j.tile)
end
end
ev = host:service()
end
end
function M.draw()
G.clear(1,1,1); G.origin()
cam.pos = lp.pos; cam:apply_trans()
local tl,br = cam:extents()
tl = tl:floor() br = br:ceil()
for x=tl.x,br.x do for y=tl.y,br.y do
local t = chunks:tile(Pos(x,y))
if t ~= nil then G.setColor(colors[t~=(x<0)]) G.rectangle('fill',x-0.5,y-0.5,1,1) end end end
lp.draw()
for _,player in pairs(players) do draw_player(player.pos,{0,1,1}) end
G.origin() G.setColor(1,0,0)
G.print(tostring(lp.pos),100,100)
G.setColor(0,0,0,0.8)
G.rectangle('fill',0,0,100,100)
G.setColor(1,1,1)
for cx=-7,7 do for cy=-7,7 do local p=Pos(cx,cy) if chunks:get(p) then
p = (p + Pos(7,7))*10
G.setColor(1,1,1) G.rectangle('fill',p.x,p.y,10,10)
G.setColor(0,0,1) G.rectangle('line',p.x,p.y,10,10)
end end end
local p = (lp.pos/common.SIZE+Pos(7,7))*10
G.setColor(1,0,0) G.rectangle('fill',p.x-1,p.y-1,2,2)
end
return M
|
