Set constant velocity for body [Physics.P2JS]?

[adeptnix]

Hi. How to set a constant speed, so that it did not decrease in collisions with other bodies and boundaries of the world?

[valueerror]

since p2 is a physics engine and there isnt something like constant speed in the real world beecause of friction i guess you need to apply a constant force like an engine in the car.. the moment you step of the gas pedal your car slows down..

i would apply

somesprite.body.velocity.x = 200;

in the update loop. never step of the gas

[lewster32]

Could this not be approximated by playing with the properties such as damping, mass and so on? I'm not familiar with P2 but I believe you have fine control over the collision 'materials' so you could theoretically make something incredibly (or infinitely?) bouncy, so it loses no or little speed upon impacts?

[valueerror]

you could reduce mass to 0.1 gravityScale to 0 restitution to 1 and friction to 0 for the specific material, but eventually it will slow down because of collisions and if you dont reapply speed again maybe even turn around..

[yasdar]

sprite.body.damping= 0;

sprite.body.mass= 0.1;