ds_grid_value_disk_exists


描述

With this function you can check to see if a specific value (real or string) is present within a circular area of a given ds_grid. If it is present the function will return true otherwise it will return false.


语法:

ds_grid_value_disk_exists(index, xm, ym, r, val);

参数 描述
index 栅格的索引
xm 栅格内圆盘区域x位置。
ym 栅格内圆盘区域的y位置。
r 栅格中圆盘的半径
val The value to find.


Returns:

Boolean


例如:

if ds_grid_value_disk_exists(grid, 5, 5, 5, val)
   {
   xpos = ds_grid_value_disk_x(grid, 5, 5, 5, val);
   ypos = ds_grid_value_disk_y(grid, 5, 5, 5, val);
   }

The above code checks a ds_grid for a specific value within a disk region. if it is found, it then stores the x and y position of the value in two variables for later use.