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I am using a tilemap in which I have square tiles.
Knowing that, the size of the screen and the player position(in world coordinates) how I convert between this systems? Is there any formula?

EDIT:
For example:

The top left corner is (0,0) player position in tiles: (ScreenX / 2, ScreenY / 2)
player position in screen: always (0, 0)
grass tile position in tiles: (Gx, Gy)

Now the question is: how can I get the screen coordinates for the grass tile?

I am using a tilemap in which I have square tiles.
Knowing that, the size of the screen and the player position(in world coordinates) how I convert between this systems? Is there any formula?

EDIT:
For example:

The top left corner is (0,0) 
player position in tiles: (ScreenX / 2, ScreenY / 2)
player position in screen: always (0, 0)
grass tile position in tiles: (Gx, Gy)

Now the question is: how can I get the screen coordinates for the grass tile?

I am using a tilemap in which I have square tiles.
Knowing that, the size of the screen and the player position(in world coordinates) how I convert between this systems? Is there any formula?

EDIT:
For example:

player position in tiles: (Px, Py)
player position in screen: always (0, 0)
grass tile position in tiles: (Gx, Gy)

Now the question is: how can I get the screen coordinates for the grass tile?

I am using a tilemap in which I have square tiles.
Knowing that, the size of the screen and the player position(in world coordinates) how I convert between this systems? Is there any formula?

EDIT:
For example:

The top left corner is (0,0) player position in tiles: (ScreenX / 2, ScreenY / 2)
player position in screen: always (0, 0)
grass tile position in tiles: (Gx, Gy)

Now the question is: how can I get the screen coordinates for the grass tile?

I am using a tilemap in which I have square tiles.
Knowing that, the size of the screen and the player position(in world coordinates) how I convert between this systems? Is there any formula?

I am using a tilemap in which I have square tiles.
Knowing that, the size of the screen and the player position(in world coordinates) how I convert between this systems? Is there any formula?

EDIT:
For example:

player position in tiles: (Px, Py)
player position in screen: always (0, 0)
grass tile position in tiles: (Gx, Gy)

Now the question is: how can I get the screen coordinates for the grass tile?