create a shuffled list and get the next index everytime | Together C & C++ | Page 1

jaunty nebulaBOT Nov 25, 2023, 3:02 PM

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ancient adder Nov 25, 2023, 4:16 PM

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I don't know how to create a function to create a shuffled list and to get the next index everytime

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create a function to create a shuffled list and to get the next index everytime

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create a shuffled list and get the next index everytime

lusty rampart Nov 25, 2023, 4:34 PM

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!howto ask

jaunty nebulaBOT Nov 25, 2023, 4:34 PM

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lusty rampart !howto ask

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lusty rampart Nov 25, 2023, 4:35 PM

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!sc

jaunty nebulaBOT Nov 25, 2023, 4:35 PM

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lusty rampart !sc

Slacking, Herald of Monke

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ancient adder Nov 25, 2023, 4:36 PM

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Game::Game()
{
    grid = Grid();
    blocks = GetAllBlocks();

    //currentBlock = blocks[0];


    currentBlock = GetRandomBlock();
    nextBlock = GetRandomBlock();

}

Block Game::GetRandomBlock() //A remplacer par GetNextBlock()
{
    if(blocks.empty())
    {
        blocks = GetAllBlocks();
    }
    int randomIndex = rand() % blocks.size();
    Block block = blocks[randomIndex];
    blocks.erase(blocks.begin() + randomIndex);
    return block;
}


std::vector<Block> Game::GetAllBlocks()
{
    return {SmallLBlock(), TBlock(), SmallCrossBlock(), ZBlock(), SmallTBlock(), SquareBlock(), UBlock(), ThreeBlock(), LightningBlock(), SmallCornerBlock(), SmallStairsBlock()}; //Continuer de mettre le reste des blocs dont ceux qui se répètent plusieurs fois
}

void Game::LockBlock()
{
    std::vector<Position> tiles = currentBlock.GetCellPositions();
    if(BlockFits())
    {
        for(Position item: tiles)
        {
            currentBlock.id = currentPlayer;
            grid.grid[item.row][item.column] = currentBlock.id;
        }
        if (currentPlayer < numberOfPlayers)
        {
            currentPlayer += 1;
        } else {
            currentPlayer = 1;
        }
        currentBlock = nextBlock;
        nextBlock = GetRandomBlock();
    }
}

ancient adder Nov 25, 2023, 5:47 PM

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@lusty rampart But you can't try to help me ?

lusty rampart Nov 25, 2023, 6:05 PM

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Sorry, didnt see

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Could you state your question more clearly?

ancient adder Nov 25, 2023, 6:15 PM

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So I need to create a list with all my blocks as you see is GetAllBlocks, I need to shuffle this list. After that I have a variable currentBlock which has to take the first block of the list and then nextBlock which is the next one.
After that, the currentBlock will become the nextBlock in the second screen LockBlock().
I need to do that bcs I have to print the 5 next block in the list in my game.

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So we'll maybe need to delete the GetRandomBlock function or just to replace it by a GetNextBlock() function...

lusty rampart Nov 25, 2023, 6:42 PM

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So what is your question?

ancient adder Nov 25, 2023, 6:43 PM

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how to do that xD

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it's been like 3 or 4 days i'm trying but with no results, I'm bad at c++ and have to finish my project before next friday, and I have others things to do in this project

lusty rampart Nov 25, 2023, 6:50 PM

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ancient adder how to do that xD

Which part?

ancient adder Nov 25, 2023, 6:50 PM

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what I just wrote above

lusty rampart Nov 25, 2023, 6:51 PM

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Which part are you having issues with?

ancient adder Nov 25, 2023, 6:52 PM

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like everything about this, create a list which I think is a vector in C, shuffle it bcs everytime I try with things on internet it doesn't work and after I have that I'll have to replace the variable to get the nextBlock

lusty rampart Nov 25, 2023, 6:54 PM

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If by list you mean a container of contiguously stored items that is an array

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std::vector is a class from the standard library that can act as an array, but it can also change in size

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Which arrays can not by default in C++

ancient adder Nov 25, 2023, 6:55 PM

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yeah this is a vector

lusty rampart Nov 25, 2023, 6:57 PM

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The easiest way to sort a vector is to use the standard library’s std::sort

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Which is in <algorithm>

ancient adder Nov 25, 2023, 6:57 PM

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but how can I shuffle it ? Bcs everything I found was like to create a function to shuffle bcs their is no native function to do it

lusty rampart Nov 25, 2023, 6:57 PM

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Oh, sorry

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There is a shuffle function

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https://en.cppreference.com/w/cpp/algorithm/ranges/shuffle

cpp/algorithm/ranges/shuffle

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It was introduced in C++20 so you might have to change a setting in your IDE

lusty rampart Nov 25, 2023, 7:00 PM

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lusty rampart https://en.cppreference.com/w/cpp/algorithm/ranges/shuffle

This is also in <algorithm>

ancient adder Nov 25, 2023, 7:00 PM

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Okay I'll try to see how it works

lusty rampart Nov 25, 2023, 7:00 PM

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Which IDE do you use?

ancient adder Nov 25, 2023, 7:00 PM

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Clion

lusty rampart Nov 25, 2023, 7:32 PM

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Let me know how it went afterwards 🙂

ancient adder Nov 25, 2023, 8:17 PM

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no problem

#create a shuffled list and get the next index everytime