# Field Grid System

## Grid Layout

12x12 cells, each 12" x 12":

```
    0   1   2   3   4   5   6   7   8   9  10  11
11  .   .   .   .   .   .   .   .   .   .   .   B
10  .   .   .   .   .   .   .   .   .   .   .   .
 9  .   .   .   .   .   .   .   .   .   .   .   .
 8  .   .   .   .   .   .   .   .   .   .   .   .
 7  .   .   .   .   .   .   .   .   .   .   .   .
 6  .   .   .   .   .   X   .   .   .   .   .   .
 5  .   .   .   .   .   .   .   .   .   .   .   .
 4  .   .   .   .   .   .   .   .   .   .   .   .
 3  .   .   .   .   .   .   .   .   .   .   .   .
 2  .   .   .   .   .   .   .   .   .   .   .   .
 1  .   .   .   .   .   .   .   .   .   .   .   .
 0  R   .   .   .   .   .   .   .   .   .   .   .

R = Red backstage (0,0)
B = Blue backstage (11,11)
X = Center (6,6)
```

## Usage

```java
GridCell cell = new GridCell(5, 7);
double dist = cell.distanceTo(FieldGrid.CENTER);
double angle = cell.angleTo(FieldGrid.BLUE_BACKSTAGE);
```

## Common Locations

```java
FieldGrid.RED_BACKSTAGE    // (0, 0)
FieldGrid.BLUE_BACKSTAGE   // (11, 11)
FieldGrid.CENTER           // (6, 6)
```