Add a new "Behaviours" library for general gameplay functionality, so these can be added into user projects

Is your feature request related to a problem?

It takes a lot of work just to make a platformer character walk and jump without falling through the floor or glitching through a wall. Also, giving player characters and enemies the same platformer behaviors is time-consuming.

Describe the solution you'd like

A behavior system similar to the ones that GDevelop, Clickteam Fusion, and Construct have. These three programs have pre-made coding for platformer characters, projectiles, cars, 8-way motion, etc. For example, the work needed to make a platform character walk and fall without going through any solid objects is already done for the user.

Describe alternatives you've considered

No response

Additional context

No response

The reason I disagree: How wise is pre-made platformer movement?

YYG already provides a platformer template if that's what you want.
GM has (off the top of my head) some three physics techniques available at any time: direct adjustments to x,y; built-in speed,direction adjustments to x,y; togglable Box2D adjustments to x,y. Then, too, there's the new move_and_collide() which is quite customizable in and of itself (and falls under the "direct adjustments to x,y" category).
There are various ways to handle collision, too: post-collide, pre-collide; the event, various functions, solid; which objects should check for which objects (especially as pre-requisites for the event, including its placement in any object in the first place)?
Which physics (not to mention collision) style should be chosen and why? (Clearly not Box2D of course.) A Mario-style game might be better off with x,y or move_and_collide() whereas a Sonic-style game might be better off with speed,direction. (Even then, ~~Angry Birds~~ Angry Cats $:^ ] could loosely be considered platforming, and it clearly should go with Box2D, but I suppose a game anything like that would be considered too advanced for the default "platformer behavior.")
Should this extend to platformer style? Hop'n'bop vs. beat/shoot 'em up vs. etc....

This has too much make_game() vaguery imo, and I thus believe YYG's time should instead be spent elsewhere.

Also, giving player characters and enemies the same platformer behaviors is time-consuming.

I suggest this because I don't know your skill level: Perhaps you just need to learn more (or apply more knowledge) about parenting, functions, and other time-saving programming devices.

Regards, Bob

YoYoGames / GameMaker-Bugs