<pre id="terminal" style="display: inline-block;"></pre>
<textarea id="input" style="opacity: 0; width: 0px;"></textarea>
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-keys:<br />
+keys (see <a href="https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key/Key_Values">here</a> for non-obvious available values):<br />
move up (square grid): <input id="key_square_move_up" type="text" value="w" /> (hint: ArrowUp)<br />
move left (square grid): <input id="key_square_move_left" type="text" value="a" /> (hint: ArrowLeft)<br />
move down (square grid): <input id="key_square_move_down" type="text" value="s" /> (hint: ArrowDown)<br />