With this function you can set a circular region of a grid to a certain value. You need to supply a starting grid cell (as an x and y axis coordinate) as well as the radius of the disk to set and the value that you wish to set the disk too, as shown by the illustration below:
ds_grid_set_disk(index, xm, ym, r, val);
| Argument | Type | Description |
|---|---|---|
| index | DS Grid | The index of the grid. |
| xm | Real | The x position of the disk on the grid. |
| ym | Real | The y position of the disk on the grid. |
| r | Real | The radius of the disk on the grid. |
| val | Any | The value to set with the cells within the disk. |
N/A
ds_grid_set_disk(grid, ds_grid_width(grid) div 2, ds_grid_height(grid) div 2, 5, -4)
The above code will set a circular region with a radius of 5 cells in the DS grid indexed in the variable "grid" to a value of -4.