Table 1: Grid distinct cell states.

State ID State description
1 The cell contains an asteroid
2 The cell contains an "energized" asteroid
3 The cell contains the player's ship
4 The cell contains the player's ship being hit by enemy 1
5 The cell contains the player's ship being hit by enemy 2
6 The cell contains the player's ship being destroyed
7 The cell contains the player's ship firing a laser
8 The cell contains enemy 1
9 The cell contains enemy 1 being hit by a laser
10 The cell contains enemy 1 being hit by an asteroid
11 The cell contains enemy 1 firing a laser
12 The cell contains enemy 1 being destroyed
13 The cell contains enemy 2
14 The cell contains enemy 2 being hit by a laser
15 The cell contains enemy 2 being hit by an asteroid
16 The cell contains enemy 2 firing a laser
17 The cell contains enemy 2 being destroyed
18 The cell contains a player laser
19 The cell contains an enemy 1 laser
20 The cell contains an enemy 2 laser
21 The cell contains a life upgrade
22 The cell contains a life upgrade hit by laser
23 The cell contains a shield upgrade
24 The cell contains a shield upgrade hit by laser
25 Empty cell