I don't understand how gameField[y][x] = new GameObject(x, y, isMine); works. Can someone please explain?

Question about the task

Resolved

Hello, In the program there is this line

gameField[y][x] = new GameObject(x, y, isMine);

but I don't quite understand what exactly is does. Does it add at position y the indices x which is the new game object? Do the x and y from gameobject transfer to the gamefield array? If so, how is that possible to transfer information from an object to an array? Thank you!

Comments (4)

Popular
New
Old

You must be signed in to leave a comment

Nouser

Level 36 , Germany

24 November 2020, 10:00

useful

Your MinesweeperGame class has a field:

private GameObject[][] gameField = new GameObject[SIDE][SIDE];

means the gameField field is able to store GameObjects. But you first need to initialize it (the line of code you posted - needs to be executed in a nested loop). Then each element of your 2 dim array contains a GameObject and that again stores other data like x, y, isMine, countMineNeighbors, isOpen etc. now you can loop through your array and do stuff to each element like

for (int y = 0; y < SIDE; y++) {
    for (int x = 0; x < SIDE; x++) {
        GameObject tile = gameField[y][x];
        if (tile.isMine) { ...

Andrei

Level 41

24 November 2020, 10:18

Oh my gosh, my brain is hurting, I think I need to study more before I continue with this game... OK, so gameField can store GameObjects.But GameObjects is of format GameObject(int x, int y, boolean isMine); How can you create an array from a normal class? That is puzzling me.

Nouser

Level 36 , Germany

24 November 2020, 11:30

solution

GameObject is more, that's just the constructor but in case something happens, eg. you click a tile, you can assign additional state (isOpen). gameField is an array and can store GameObjects. A GameObject is not a primitive so it may have additional states and behavior. So just compare that to String objects. I bet here you have no doubts and just create arrays of that type. Just do the same with objects of other types ;)

Andrei

Level 41

24 November 2020, 11:54

Thanks!