Physics and dt

[togFox]

I will be using the physics engine in my next project and thought I'd check:

Code: Select all

Person[i].body:applyForce(intendedxforce,intendedyforce)

The applyForce method - should that be scaled by dt?

Code: Select all

Person[i].body:applyForce(intendedxforce * dt ,intendedyforce * dt)

?

I mean, is applyForce the force at any given time, meaning dt is irrelevant, or is applyForce the force per second in which case, dt becomes important?

[pgimeno]

The force applied by applyForce should not be multiplied by dt in principle. It lasts the duration of dt that you pass to world:update(); if you want it to be applied for longer, you have to apply it multiple times.