I will make you a custom downloadable plat former physics script. All you need to do is like and favorite both this project and "PlatformerPhysics"( (https://scratch.mit.edu/projects/672327998/ ) , then follow me. After that, just comet saying what you need the script to do and I will make it.
See how to download the script at PlatformerPhysics PlatformerPhysics- https://scratch.mit.edu/projects/672327998/