ar(<span class="hljs-number">0</span>) <span class="hljs-comment">// returns 0</span>
hx.ease.linear(<span class="hljs-number">0.5</span>) <span class="hljs-comment">// returns 0.5</span>
hx.ease.linear(<span class="hljs-number">1</span>) <span class="hljs-comment">// returns 1</span>

<span class="hljs-comment">// quadratic easing function</span>
hx.ease.quad(<span class="hljs-number">0</span>) <span class="hljs-comment">// returns 0</span>
hx.ease.quad(<span class="hljs-number">0.5</span>) <span class="hl