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asynckey.lua
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asynckey.lua
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local asynckey = {}
asynckey.delay = 0.001
if not love or love.system.getOS() ~= "Windows" then
return asynckey
end
local keymap
---@param event table
---@return table
local function transform(event)
local key = keymap[event.key]
if key then
event.key = key
end
return event
end
local threadCode
function asynckey.start()
local thread = love.thread.newThread(threadCode:gsub("<delay>", asynckey.delay))
thread:start()
local channel = love.thread.getChannel("AsyncInputChannel")
asynckey.events = coroutine.wrap(function()
while true do
local event = channel:pop()
while event do
coroutine.yield(transform(event))
event = channel:pop()
end
coroutine.yield()
end
end)
function asynckey.clear()
channel:clear()
end
asynckey.start = nil
end
threadCode = [[
local ffi = require("ffi")
local bit = require("bit")
ffi.cdef("int16_t GetAsyncKeyState(int vKey);")
require("love.timer")
local keys = {}
for i = 0, 255 do
keys[i] = false
end
local channel = love.thread.getChannel("AsyncInputChannel")
local event = {}
local function send(key, state, time)
event.key = key
event.state = state
event.time = time
channel:push(event)
end
while true do
local time = love.timer.getTime()
for key = 0, 255 do
local state = bit.band(ffi.C.GetAsyncKeyState(key), 0x8000) ~= 0
if keys[key] ~= state then
send(key, state, time)
keys[key] = state
end
end
love.timer.sleep(<delay>)
end
]]
keymap = {
[0x08] = "backspace",
[0x09] = "tab",
[0x0C] = "kp5",
[0x0D] = "return",
[0x10] = "lshift",
[0x11] = "rctrl",
[0x12] = "lalt",
[0x14] = "capslock",
[0x1B] = "escape",
[0x20] = "space",
[0x21] = "pageup",
[0x22] = "pagedown",
[0x23] = "end",
[0x24] = "home",
[0x25] = "left",
[0x26] = "up",
[0x27] = "right",
[0x28] = "down",
[0x2C] = "printscreen",
[0x2D] = "insert",
[0x2E] = "delete",
[0x30] = "0",
[0x31] = "1",
[0x32] = "2",
[0x33] = "3",
[0x34] = "4",
[0x35] = "5",
[0x36] = "6",
[0x37] = "7",
[0x38] = "8",
[0x39] = "9",
[0x41] = "a",
[0x42] = "b",
[0x43] = "c",
[0x44] = "d",
[0x45] = "e",
[0x46] = "f",
[0x47] = "g",
[0x48] = "h",
[0x49] = "i",
[0x4A] = "j",
[0x4B] = "k",
[0x4C] = "l",
[0x4D] = "m",
[0x4E] = "n",
[0x4F] = "o",
[0x50] = "p",
[0x51] = "q",
[0x52] = "r",
[0x53] = "s",
[0x54] = "t",
[0x55] = "u",
[0x56] = "v",
[0x57] = "w",
[0x58] = "x",
[0x59] = "y",
[0x5A] = "z",
[0x5B] = "lgui",
[0x60] = "kp0",
[0x61] = "kp1",
[0x62] = "kp2",
[0x63] = "kp3",
[0x64] = "kp4",
[0x65] = "kp5",
[0x66] = "kp6",
[0x67] = "kp7",
[0x68] = "kp8",
[0x69] = "kp9",
[0x6A] = "kp*",
[0x6B] = "kp+",
[0x6D] = "kp-",
[0x6E] = "kp.",
[0x6F] = "kp/",
[0x70] = "f1",
[0x71] = "f2",
[0x72] = "f3",
[0x73] = "f4",
[0x74] = "f5",
[0x75] = "f6",
[0x76] = "f7",
[0x77] = "f8",
[0x78] = "f9",
[0x79] = "f10",
[0x7A] = "f11",
[0x7B] = "f12",
[0x90] = "numlock",
[0xA0] = "lshift",
[0xA1] = "rshift",
[0xA2] = "lctrl",
[0xA3] = "rctrl",
[0xA4] = "lalt",
[0xAD] = "audiomute",
[0xAE] = "volumedown",
[0xAF] = "volumeup",
[0xB0] = "audionext",
[0xB1] = "audioprev",
[0xB3] = "audioplay",
[0xBA] = ";",
[0xBB] = "=",
[0xBC] = ",",
[0xBD] = "-",
[0xBE] = ".",
[0xBF] = "/",
[0xC0] = "`",
[0xDB] = "[",
[0xDC] = "\\",
[0xDD] = "]",
[0xDE] = "'",
}
return asynckey