When we create a game, we often support the multiple-device. Even if the screen resolutions are different, canvas config can realize it easily. It changes the UI ratio to fit each resolution.
To take a screenshot on a part of a screen, we need input a resolution but we cannot know the object size on each device. Do we need calculate each device ratio for taking a screenshot on a game result and a user profile?
No. We can do it just with using another canvas or changing CanvasScaler by a script.

Mobile game get player inputs by the buttons, each with a specific function, or by its attribute like tap or long tap. The former is simple. It just calls each public method. However, the latter case need manage flags as many as the number of commands, then it`s likely to complicate. The corutine make this easier.

When creating an action game or a battle game, you may want to link a key input to an animation. All animation need transition from anywhere. If each state were connected with all others, Animator should become hard to see. In such case you can use “Any State” of Animator.

 ”A ScriptableObject is a data container that you can use to save large amounts of data, independent of class instances. ”*1 It improve project’s performance. When your project have some similar scripts like managing a enemy and environment, those parameter create each instance in memory. If those refer to a variable in ScripatableObject, it reduce instance to one.