ds_grid_swap_rows

Exchanges the contents of two entire grid rows.

$$\mathbf{G} = \begin{array}{|c|c|c|c|} \hline \color{#F80}A&\color{#F80}B&\color{#F80}C&\color{#F80}D \\\hline E&F&G&H \\\hline \color{#C8F}I&\color{#C8F}J&\color{#C8F}K&\color{#C8F}L \\\hline M&N&O&P \\\hline \end{array} \qquad f(\mathbf{G},0,2) = \begin{array}{|c|c|c|c|} \hline \color{#C8F}I&\color{#C8F}J&\color{#C8F}K&\color{#C8F}L \\\hline E&F&G&H \\\hline \color{#F80}A&\color{#F80}B&\color{#F80}C&\color{#F80}D \\\hline M&N&O&P \\\hline \end{array}$$

ds_grid_swap_rows(grid, row1, row2): Exchanges the contents of two entire grid rows.

COPY/// @func   ds_grid_swap_rows(grid, row1, row2)
///
/// @desc   Exchanges the contents of two entire grid rows.
///
/// @param  {grid}      grid        grid data structure
/// @param  {real}      row1        1st row of the exchange
/// @param  {real}      row2        2nd row of the exchange
///
/// GMLscripts.com/license

function ds_grid_swap_rows(grid, row1, row2)
{
    for (var i=0; i<ds_grid_width(grid); i++) {
        var temp = ds_grid_get(grid, i, row1);
        ds_grid_set(grid, i, row1, ds_grid_get(grid, i, row2));
        ds_grid_set(grid, i, row2, temp);
    }
}

Contributors: Quimp

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