CODEWITHSUNDEEP
luacoronasdk
user2136963
user2136963

Reputation: 2606

Creating a class with and image in corona

I'm trying to create my own class in corona based on this example It looks like:

local car={};
local car_mt = { __index=car };
function car.new()
    local ncar=
    {
        img=display:newImage("test_car.png");
    }
    return setmetatable(ncar,car_mt);
end
return car;

And it's called at level by this:

local pcar=require("car")
...
function scene:enterScene( event )
    local group = self.view
    physics.start();
    local car1=pcar.new();

end

The image exists in the same folder, but i get:

bad argument #-2 to newImage (Proxy expected, got nil)

I saw some similar issues in the Net, and it seems to me that newImage() doesn't know where to place a picture. But how can I say it if the class it made to be used for any stage?

Upvotes: 3

Views: 683

Answers (1)

hjpotter92
hjpotter92

Reputation: 80639

Oh, the error is because you're calling newImage function as:

display:newImage( "test_car.png" )

which is the wrong syntax. The above statement actually means:

display.newImage( display, "test_car.png" )

which, obviously is wrong.

The correct method would be:

display.newImage( "test_car.png" )

Read more about the API here.

Upvotes: 6

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