Implemented the ability for the user to add new input types

[snibo]

As the title sais now you can make it so any function that can output a number between 0 and 1 to be it's own input type and can be used along side the other ones. For more details on how to use it check the bottom of the updated readme.md

This feature is useful for UI and especially for mobile games since it allows you to easily bind the touch controls using baton.

[tesselode]

Can you show an example of how this would be used for UI?

[snibo]

Here is a working demo all you have to do is past it in main.lua with my branch of baton in the same file.

What it does is using either the on screen buttons or the arrow keys (left/right) you can " browse through the pages".

local baton = require('baton')

local page = 0

local x, y = love.mouse.getPosition()
local rightClick = love.mouse.isDown(1)

-- initializing the buttons
local buttonSize = 100
local buttons = {
  back = {x = 0           , y = 200},
  next = {x = buttonSize*2, y = 200},
}

-- input type constructor to detect button presses
baton.newInputType('ui', function(value)
  local b = buttons[value]
  local s = buttonSize
  return (x > b.x and x < b.x+s and y > b.y and y < b.y+s and rightClick) and 1 or 0
end)

-- controls are set so you can browse through the pages with either
-- the ui or the arrow keys
local input = baton.new {
  controls = {
    back = {'key:left', 'ui:back'},
    next = {'key:right', 'ui:next'},
  }
}

function love.update(dt)
  x, y = love.mouse.getPosition()
  rightClick = love.mouse.isDown(1)
  input:update()
  
  if input:pressed('next') then
    page = page + 1
  elseif input:pressed('back') then
    page = page - 1
  end
end

-- rendering stuff don't pay attention
local function drawBox(x, y, w, h, r, g, b, name)
  local lg = love.graphics
  lg.setColor(r, g, b, 0.4)
  lg.rectangle('fill', x, y, w, h)
  lg.setColor(r, g, b, 1.0)
  lg.rectangle('line', x, y, w, h)
  lg.print(name, x + w/3, y + h/3)
  lg.setColor(1,1,1,1)
end

function love.draw()
  love.graphics.print('page: '..page, 0, 0)
  
  for name, button in pairs (buttons) do
    drawBox(button.x, button.y, buttonSize, buttonSize, 0, 0.5, 1, name)
  end
end