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typeExtend
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| ----------------------------------------------------------------- | |
| -- copyright © 2014 Jeff Strahan -- | |
| -- Permission is granted to use this code -- | |
| -- in any of you own projects free of charge -- | |
| -- For more modules, templates, tutorials, and snippets -- | |
| -- visit http://www.j-strahan.com -- | |
| ----------------------------------------------------------------- | |
| -- -- | |
| -- type() returns the type of an object, (nil, number, string, -- | |
| -- boolean, table, function, thread, userdata ) as defined by -- | |
| -- lua. Have you ever wished you could detect a broader range -- | |
| -- of object types. With _typeExtend now you can detect if the -- | |
| -- object is a sound, stream, circle, rect, roundedRect, text, -- | |
| -- embossedText,image,imageRect,timer, file, container, group, -- | |
| -- line, polygon, sprite, transition, or snapshot. All that’s -- | |
| -- needed is 1 line of code to set it up. then use the type() -- | |
| -- command as usual and it will return the type of object -- | |
| -- supplied to the command. -- | |
| -- -- | |
| ---------------------------------------------------------------- | |
| local oldType = type type = function(v) local function newType(v) | |
| return ( oldType(v) == 'table' and v._type ~= nil and | |
| oldType(v._type() ) == 'string' ) and v._type() or nil end | |
| local options = { newType, io.type, oldType } for _,get in | |
| pairs (options)do local t = get(v) if t then return t end end end | |
| local temp = { sound = audio.loadSound,stream = audio.loadStream, | |
| circle = display.newCircle, container = display.newContainer, | |
| embossedText = display.newEmbossedText, group = display.newGroup, | |
| image = display.newImage, imageRect = display.newImageRect, | |
| line = display.newLine, polygon = display.newPolygon, rect = | |
| display.newRect, roundedRect = display.newRoundedRect, snapshot = | |
| display.newSnapshot,sprite=display.newSprite,text=display.newText | |
| ,timer = timer.performWithDelay, transitionTo = transition.to, | |
| transitionFrom = transition.from } local common = function | |
| (object, ... )local object = object local new = temp[object](...) | |
| new._type = function( ) return object end return new end | |
| function transition.to(...)return common('transitionTo',...)end | |
| function timer.performWithDelay(...)return common('timer',...)end | |
| function audio.loadStream(...) return common( 'stream' ,...)end | |
| function audio.loadSound( ... ) return common( 'sound' , ... )end | |
| function display.newCircle(... ) return common( 'circle', ...)end | |
| function display.newGroup( ... ) return common( 'group' ,...)end | |
| function display.newImage(...) return common( 'image' ,... ) end | |
| function display.newLine(... ) return common( 'line' , ... ) end | |
| function display.newPolygon(...) return common( 'polygon',...)end | |
| function display.newRect( ... ) return common( 'rect' , ...) end | |
| function display.newSnapshot(...)return common('snapshot',...)end | |
| function display.newSprite( ... ) return common('sprite',...)end | |
| function display.newText( ... ) return common( 'text' , ...)end | |
| function transition.from(...)return common('transitionFrom',...)end | |
| function display.newContainer(...)return common('container',...)end | |
| function display.newImageRect(...)return common('imageRect',...)end | |
| function display.newRoundedRect(...)return common('roundedRect',...)end | |
| function display.newEmbossedText(...)return common('embossedText',...)end | |
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| require'_typeExtend' | |
| local c1 = display.newCircle(160,200,20) | |
| local r1 = display.newRect( 160, 300, 40, 40 ) | |
| local t1 = transition.to( c1, {time = 2000, x = 0} ) | |
| local t2 = timer.performWithDelay( 3000, function() end ) | |
| local f1 = io.open( system.pathForFile( "data.txt", system.DocumentsDirectory ), "a" ) | |
| print(type(c1)) | |
| print(type(r1)) | |
| print(type(t1)) | |
| print(type(t2)) | |
| print(type(f1)) | |
| c1:addEventListener( "touch", function() print('touched') end ) |
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