Workshop › Pac-Man-style Maze Chase › Step 8 of 42

What a mover remembers

What we are doing

The player will glide from tile to tile, not jump. So besides its tile it keeps: dir (where it is going), want (where the player would like to go), progress (frames done of the current step) and frames (frames one step takes). STOP is the direction "nowhere", and same compares two directions.

```js
const STOP = [0, 0]
const PLAYER_FRAMES = 8 // frames the player needs to cross one tile

const same = (a, b) => a[0] === b[0] && a[1] === b[1]

  player = { col: MAZE[row].indexOf('P'), row, dir: STOP, want: STOP, progress: 0, frames: PLAYER_FRAMES }
```

What it means

STOP is a direction that adds nothing.
Two arrays are never === unless they are the same array, so same compares their two numbers.
The player now starts standing still, with no step in progress.

Your turn

Under COLS write STOP and PLAYER_FRAMES.
Under canGo, after an empty line, write same.
In placeActors, add the four new fields to player.

Skills: Game states

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