panel-attack/input.lua at master · jon12156/panel-attack · GitHub

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local jpexists, jpname, jrname
for k,v in pairs(love.handlers) do
  if k=="jp" then
    jpexists = true
  end
end
if jpexists then
  jpname = "jp"
  jrname = "jr"
else
  jpname = "joystickpressed"
  jrname = "joystickreleased"
end
local __old_jp_handler = love.handlers[jpname]
local __old_jr_handler = love.handlers[jrname]
love.handlers[jpname] = function(a, b)
  __old_jp_handler(a,b)
  love.keypressed("j"..a:getID()..b)
end
love.handlers[jrname] = function(a,b)
  __old_jr_handler(a,b)
  love.keyreleased("j"..a:getID()..b)
end

local prev_ax = {}
local axis_to_button = function(idx, value)
  local prev = prev_ax[idx] or 0
  prev_ax[idx] = value
  if value <= .5 and not (prev <= .5) then
    love.keyreleased("ja"..idx.."+")
  end
  if value >= -.5 and not (prev >= -.5) then
    love.keyreleased("ja"..idx.."-")
  end
  if value > .5 and not (prev > .5) then
    love.keypressed("ja"..idx.."+")
  end
  if value < -.5 and not (prev < -.5) then
    love.keypressed("ja"..idx.."-")
  end
end

local prev_hat = {{},{}}
local hat_to_button = function(idx, value)
  if string.len(value) == 1 then
    if value == "l" or value == "r" then
      value = value .. "c"
    else
      value = "c" .. value
    end
  end
  value = procat(value)
  for i=1,2 do
    local prev = prev_hat[i][idx] or "c"
    if value[i] ~= prev and value[i] ~= "c" then
      love.keypressed("jh"..idx..value[i])
    end
    if prev ~= value[i] and prev ~= "c" then
      love.keyreleased("jh"..idx..prev)
    end
    prev_hat[i][idx] = value[i]
  end
end

function love.joystick.getHats(joystick)
  local n = joystick:getHatCount()
  local ret = {}
  for i=1,n do
    ret[i] = joystick:getHat(i)
  end
  return unpack(ret)
end

function joystick_ax()
  local joysticks = love.joystick.getJoysticks()
  for k,v in ipairs(joysticks) do
    local axes = {v:getAxes()}
    for idx,value in ipairs(axes) do
      axis_to_button(k..idx, value)
    end

    local hats = {love.joystick.getHats(v)}
    for idx,value in ipairs(hats) do
      hat_to_button(k..idx, value)
    end
  end
end

function love.keypressed(key, scancode, rep)
  if key == "return" and not rep and love.keyboard.isDown("lalt") and love.graphics.getSupported("canvas") then
    love.window.setFullscreen(not love.window.getFullscreen(), "desktop")
    return
  end
  if not rep then
    keys[key] = 0
  end
  this_frame_keys[key] = true
end

function love.textinput(text)
  this_frame_unicodes[#this_frame_unicodes+1] = text
end

function love.keyreleased(key, unicode)
  keys[key] = nil
end

function key_counts()
  for key,value in pairs(keys) do
    keys[key] = value + 1
  end
end