How to handle platform specific code?

plicatibu

Hi.
Let's say I have code specific for Android, iOS and HTML5.

As Lua doesn't have #ifdef, how do I handle it?

Thank you.

oleg

The top of each api command indicates which platforms support it
https://wiki.giderosmobile.com/index.php/Accelerometer

keszegh

https://wiki.giderosmobile.com/index.php/Application:getDeviceInfo

you can query with this what is the actual device.

plicatibu

Cool.
Thanks.

hgy29

If you use a function which isn’t available on some platform, you can call it inside a pcall() and check the result

SinisterSoft

Here is an example for getDeviceInfo()...

device={application:getDeviceInfo()} print(device[1]) print(device[2]) print(device[3]) print(device[4]) print(device[5]) if device[5]=="TV" then tv=true end if device[1]=="Windows" or device[1]=="Mac OS" then --application:set("cursor","blank") pc=true premium=true application:setWindowSize(600,1024) if not secret then --application:setScaleMode("noScale") --application:setWindowSize(600,1024) application:setFullScreen(true) -- application:setScaleMode("letterbox") -- application:setOrientation("landscapeLeft") -- application:setFullScreen(true) end tv=true elseif device[1]=="Web" then web=true premium=true local url=JS.eval("window.location.href") local line=find(url,"?") if line then params=parseUrl(sub(url,line+1)) end elseif device[1]=="Win32" then win32=true tv=true premium=true elseif device[1]=="WinRT" then winrt=true premium=true elseif device[1]=="Windows Phone" then winrt=true slow=true premium=true elseif device[1]=="Android" then android=true if device[3]=="Amazon" then kindle=true if sub(device[4],1,3)=="AFT" then tv=true if device[4]=="AFTM" then slow=true end end elseif device[3]=="OUYA" then ouya=true tv=true slow=true elseif device[3]=="Geniatech" then tv=true if sub(device[4],1,9)=="GameStick" or device[4]=="TotoTV Stick" then gamestick=true slow=true end elseif device[3]=="HardKernel Co., Ltd." then tv=true hardkernel=true if device[4]=="ODROIDC" then odroidc=true slow=true end elseif device[4]=="Nexus Player" then tv=true nexusplayer=true elseif device[3]=="razer" then tv=true razer=true if device[4]=="Forge" then forgetv=true end elseif device[3]=="IRIVER" then slow=true end elseif device[1]=="iOS" then ios=true if device[3]=="AppleTV" then tv=true appletv=true end end