Homec4science
Diffusion cellulo-lovr (master) Browse

cellulo-lovr/lib/lovr-keyboard.lua
b35c6c785050master

Last Change
Raw File

lovr-keyboard.lua
View Options

local ffi = require 'ffi'
local C = ffi.os == 'Windows' and ffi.load('glfw3') or ffi.C
ffi.cdef [[
typedef struct GLFWwindow GLFWwindow;
typedef void(*GLFWkeyfun)(GLFWwindow*, int, int, int, int);
GLFWwindow* glfwGetCurrentContext(void);
int glfwGetKey(GLFWwindow* window, int key);
GLFWkeyfun glfwSetKeyCallback(GLFWwindow* window, GLFWkeyfun callback);
]]
local window = C.glfwGetCurrentContext()
local keymap = {
['space'] = 32,
['\''] = 39,
[','] = 44,
['-'] = 45,
['.'] = 46,
['/'] = 47,
['0'] = 48,
['1'] = 49,
['2'] = 50,
['3'] = 51,
['4'] = 52,
['5'] = 53,
['6'] = 54,
['7'] = 55,
['8'] = 56,
['9'] = 57,
[';'] = 59,
['='] = 61,
['a'] = 65,
['b'] = 66,
['c'] = 67,
['d'] = 68,
['e'] = 69,
['f'] = 70,
['g'] = 71,
['h'] = 72,
['i'] = 73,
['j'] = 74,
['k'] = 75,
['l'] = 76,
['m'] = 77,
['n'] = 78,
['o'] = 79,
['p'] = 80,
['q'] = 81,
['r'] = 82,
['s'] = 83,
['t'] = 84,
['u'] = 85,
['v'] = 86,
['w'] = 87,
['x'] = 88,
['y'] = 89,
['z'] = 90,
['['] = 91,
['\\'] = 92,
[']'] = 93,
['`'] = 96,
['escape'] = 256,
['return'] = 257,
['enter'] = 257,
['tab'] = 258,
['backspace'] = 259,
['insert'] = 260,
['delete'] = 261,
['right'] = 262,
['left'] = 263,
['down'] = 264,
['up'] = 265,
['pageup'] = 266,
['pagedown'] = 267,
['home'] = 268,
['end'] = 269,
['capslock'] = 280,
['scrolllock'] = 281,
['numlock'] = 282,
['printscreen'] = 283,
['pause'] = 284,
['f1'] = 290,
['f2'] = 291,
['f3'] = 292,
['f4'] = 293,
['f5'] = 294,
['f6'] = 295,
['f7'] = 296,
['f8'] = 297,
['f9'] = 298,
['f10'] = 299,
['f11'] = 300,
['f12'] = 301,
['kp0'] = 320,
['kp1'] = 321,
['kp2'] = 322,
['kp3'] = 323,
['kp4'] = 324,
['kp5'] = 325,
['kp6'] = 326,
['kp7'] = 327,
['kp8'] = 328,
['kp9'] = 329,
['kp.'] = 330,
['kp/'] = 331,
['kp*'] = 332,
['kp-'] = 333,
['kp+'] = 334,
['kpenter'] = 335,
['kp='] = 336,
['lshift'] = 340,
['lctrl'] = 341,
['lalt'] = 342,
['lgui'] = 343,
['rshift'] = 344,
['rctrl'] = 345,
['ralt'] = 346,
['rgui'] = 347,
['menu'] = 348
}
for k, v in pairs(keymap) do
keymap[v] = k
end
local keyboard = {}
function keyboard.isDown(key, ...)
if not key then return false end
local keycode = keymap[key]
assert(keycode and type(keycode) == 'number', 'Unknown key: ' .. key)
return C.glfwGetKey(window, keycode) == 1 or keyboard.isDown(...)
end
C.glfwSetKeyCallback(window, function(window, key, scancode, action, mods)
if action ~= 2 and keymap[key] then
lovr.event.push(action > 0 and 'keypressed' or 'keyreleased', keymap[key])
end
end)
return keyboard
c4science · Help