Making Kinematic bodies push each other

David

How can I make it so that one kinematic body can affect another kinematic body without being affected back, like the falling tiles in Celeste or the moving platforms in any platformer.

Zelta

collisions, layers and masks?

David

The objects seem to push on each other even if they are on different layers, as long as one masks the other.

newmodels

You might have to write your own collision code.

cybereality

KinematicBodies aren't simulated by physics, so they won't have an automatic response. You basically control them yourself with your own code. They can create collision events, for example, you can test if they are touching the floor or colliding with different objects, but they won't move things by themselves.

For games like Celeste, I doubt they used a physics engine for things like moving platforms or falling tiles. Most likely they coded their own collision for that. As an example, you can test if the player it on top of a platform (maybe by putting a small area collider along the top of the platform) and then moving the player by the same amount the platform is moving. This is tricky to get right, but totally doable.

Zelta

what u mean with affected? do u want push them or what u need exactly? could explain better?

David

I want to created a moving tile that can push the player around, without being slowed down or stopped by the player

David

I figured it out. If you set the infinite inertia parameter in the function move_and_slide to false, that kinematic body would no longer be able to move other bodies.

David

I've figured out how the control the block manually. First of all, a Kinematic body will not be affect by other bodies so long as you avoid using Move_and_slide/collide. You can control the body by using move_and_collide with the test parameter as true(this stops the block from actually moving) to scan for collisions and then moving the block accordingly with code.