--[[ Copyright (c) 2010-2011 Matthias Richter Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. Except as contained in this notice, the name(s) of the above copyright holders shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ]]-- local error, assert, love = error, assert, love module(...) local function __NULL__() end -- default gamestate produces error on every callback local function __ERROR__() error("Gamestate not initialized. Use Gamestate.switch()") end current = { init = __ERROR__, enter = __ERROR__, leave = __NULL__, update = __ERROR__, draw = __ERROR__, focus = __ERROR__, keyreleased = __ERROR__, keypressed = __ERROR__, mousepressed = __ERROR__, mousereleased = __ERROR__, joystickpressed = __ERROR__, joystickreleased = __ERROR__, quit = __ERROR__, } function new() return { init = __NULL__, enter = __NULL__, leave = __NULL__, update = __NULL__, draw = __NULL__, focus = __NULL__, keyreleased = __NULL__, keypressed = __NULL__, mousepressed = __NULL__, mousereleased = __NULL__, joystickpressed = __NULL__, joystickreleased = __NULL__, quit = __NULL__, } end function switch(to, ...) assert(to, "Missing argument: Gamestate to switch to") current:leave() local pre = current to:init() to.init = __NULL__ current = to return current:enter(pre, ...) end local _update function update(...) if _update then _update(...) end return current:update(...) end local _draw function draw(...) if _draw then _draw(...) end return current:draw(...) end local _focus function focus(...) if _focus then _focus(...) end return current:focus(...) end local _keypressed function keypressed(...) if _keypressed then _keypressed(...) end return current:keypressed(...) end local _keyreleased function keyreleased(...) if _keyreleased then _keyreleased(...) end return current:keyreleased(...) end local _mousepressed function mousepressed(...) if _mousereleased then _mousepressed(...) end return current:mousepressed(...) end local _mousereleased function mousereleased(...) if _mousereleased then _mousereleased(...) end return current:mousereleased(...) end local _joystickpressed function joystickpressed(...) if _joystickpressed then _joystickpressed(...) end return current:joystickpressed(...) end local _joystickreleased function joystickreleased(...) if _joystickreleased then _joystickreleased(...) end return current:joystickreleased(...) end local _quit function quit(...) if _quit then _quit(...) end return current:quit(...) end function registerEvents() _update = love.update love.update = update _draw = love.draw love.draw = draw _focus = love.focus love.focus = focus _keypressed = love.keypressed love.keypressed = keypressed _keyreleased = love.keyreleased love.keyreleased = keyreleased _mousepressed = love.mousepressed love.mousepressed = mousepressed _mousereleased = love.mousereleased love.mousereleased = mousereleased _joystickpressed = love.joystickpressed love.joystickpressed = joystickpressed _joystickreleased = love.joystickreleased love.joystickreleased = joystickreleased _quit = love.quit love.quit = quit end