Añadiendo mlx

lib/mlx/docs/Input.md

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+<!----------------------------------------------------------------------------
+Copyright @ 2021-2022 Codam Coding College. All rights reserved.
+See copyright and license notice in the root project for more information.
+----------------------------------------------------------------------------->
+
+# Input methods
+
+MLX42 provides various ways of detecting input, you can read about all the available hooks on the [Hooks](./Hooks.md) page.
+
+## Key Detection
+
+### Generic Hook + function
+
+The easiest way of detecting continuous keypressing is via a generic hook and then checking if the specific key is down.
+This is the 'traditional' way of detecting if a key is down even in modern game engines. It provides the quickest feedback and if it's used to, say, move a character, the smoothest result.
+
+```c
+void	hook(void *param)
+{
+	mlx_t	*mlx;
+
+	mlx = param;
+	if (mlx_is_key_down(param, MLX_KEY_ESCAPE))
+		mlx_close_window(param);
+	if (mlx_is_key_down(param, MLX_KEY_UP))
+		g_img->instances[0].y -= 5;
+	if (mlx_is_key_down(param, MLX_KEY_DOWN))
+		g_img->instances[0].y += 5;
+	if (mlx_is_key_down(param, MLX_KEY_LEFT))
+		g_img->instances[0].x -= 5;
+	if (mlx_is_key_down(param, MLX_KEY_RIGHT))
+		g_img->instances[0].x += 5;
+}
+```
+
+### Hook Function
+
+For more exact input detection such as checking if the key was pressed with `Alt` or `ctrl` you should use the actual Key hook.
+Keep in mind that using a keyhook results in a slower feedback compared to using a generic hook but grants you more control in key detection.
+
+```c
+void	key_hook(mlx_key_data_t keydata, void* param)
+{
+	if (keydata.key == MLX_KEY_A && keydata.action == MLX_RELEASE && keydata.modifier == MLX_CONTROL)
+		puts("Gotta grab it all!");
+}
+```