Adding impulse force cancels out gravity force on collisions.

Question

I trying to move my player using AddForce. I don't like the feel of using ForceMode2D.Force because it takes a while for the player to get up to speed and it seems to be constantly accelerating. I want to use ForceMode2D.Impulse because the movement is snappy and instant. However, when the player is falling or jumping and collides horizontally with a wall they don't fall but are stuck there against the wall (until I let off the inputs). If I use ForceMode2D.Force I don't have this issue the player hits the wall and will fall like expected.

I am applying gravity using AddForce as I want to be able to switch the direction of gravity.

Is there a way I can either:

1/ Make ForceMode2D.Force feel instant and snappy without constantly accelerating?

2/ Have ForceMode2D.Impulse not cancel out other AddForces?

Answer 1

Answer by julianbrezon · Nov 29, 2020 at 04:12 AM

If it only happens on collisions, try this:

Create a new physics material in your project
Set both frictions to 0
Apply material to wall you're colliding with
See if you still stick to it.

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lavendergoons · Nov 29, 2020 at 04:22 AM 0

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That is one solution that is working for the walls but I have another scenario that it doesn't work for I forgot to mention. When I switch the gravity on the player and they are already falling, the Impulse force makes the gravity switch instant (like if i were to immediately change the velocity). If the player's gravity is the [0, -9.8] and I switch it to [9.8, 0] then the Impulse force will stop any movement on the Y axis and immediately transition gravity the the X axis. With the Force$$anonymous$$ode2D.Force, the player will keep their Y velocity from the old gravity as well as take on velocity from the new gravity causing them to fall in a parabola motion. I was hoping to keep that because it feels more realistic.

Adding impulse force cancels out gravity force on collisions.

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