With this function you can check any given cell of the mp_grid to see if it has been flagged as occupied or not, giving the index of the (previously created) mp_grid and the x and y coordinates of the cell to check.
If it has been occupied or the position being checked is out of the grid's bounds, the function will return -1, otherwise it will return 0.
mp_grid_get_cell(id, x , y);
| Argument | Type | Description |
|---|---|---|
| id | MP Grid ID | Index of the mp_grid that is to be used |
| x1 | Real | The x coordinate of the grid to check. |
| y1 | Real | The y coordinate of the grid to check. |
if (mp_grid_get_cell(grid, mouse_x div 16, mouse_y div 16) == -1)
{
image_blend = c_red;
}
else
{
image_blend = c_lime;
}
The above code will check the mp_grid cell that corresponds to the mouse position and if it is occupied it sets the image_blend variable to red, and if it is not occupied it sets it to green.