I am trying to design a gravity design where different planets have different gravity and the characters and objects are affected accordingly. Also, the character will be able to walk 360 degrees on the planet.
Hi @CrazyThingg
Let’s see…
In order to create a 2D planet gravity system in Unreal Engine where planets exert varying gravity and characters can move 360 degrees on their surface, follow these primary steps:
Planet Gravity Setup:
Each planet has a distinct gravity value that is calculated through the inverse square law (the strength of the gravity depends upon the distance to the center of the planet)
Gravity is designed as a force vector pointing to the center of the planet
Character Movement:
Character movement is controlled by the planet’s gravity, ensuring the character remains “grounded” on the planet surface at all times.
Utilize a custom gravity component or apply gravity forces inside the character’s tick function.
Cause the character to walk 360 degrees around the planet and maintain the proper orientation with respect to the planet surface.
Blueprint Implementation:
Include a Planet Actor with a custom gravity variable.
Compute the gravity force by determining the direction from the center of the planet to the character and use this force based on distance.
For movement, change the character’s velocity and direction so that it travels on the surface of the planet.
Multiple Planets:
If there are more than one planet, find out which planet the character is nearest to and use the corresponding gravity force
Additional Considerations:
Use physics materials to adjust for various sizes of planets and surface properties.
Handle interaction with the gravity fields of more than one planet.
Handle the camera’s motion for 360-degree rotation about the planet.
This system facilitates a dynamic 2D gravity system in which characters are affected by different planetary gravities and can move along any planet’s surface
My character doesn’t walk on the surface of the planet. He only walks on the top part of it and his feet don’t change angle. I’m new to learning UE so can you help me with how to proceed?