I'm trying to understand the proper way to move "obstacle" objects in corona/box2d. I want to know how to write my code so that the movement is deterministic and in-step with the physics engine. Is this possible?
I'm familiar with Unity which has a physics update (FixedUpdate). Where you can add a bit of code to execute on every physics step. This keeps the physics deterministic, frame and system time independent.
For example, in my game I want to do things like: Make a platform that moves back and forth, make an object that scales up and down in size. I would still like the physics to work properly and allow the ball in my game to bounce off of these for example. Depending on the case, I imagine that I should use either kinematic or dynamic bodies .
I've searched around and the way to periodically manipulate these objects is to use:
I don't think that any of these will behave deterministic. Any suggestions? Thanks for the help.
You should really use:
object:setLinearVelocity(xVelocity, yVelocity)
or
object:applyForce(xForce, yForce)
instead of transition.to.
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