CODEWITHSUNDEEP
c#monounity-game-engine
Kevin Jensen Petersen
Kevin Jensen Petersen

Reputation: 513

Velocity, correct way to do it?

Basicly, I've tried to code velocity into my game, which works sort of. The deaccelaration works, but not just right.

My problem is, that theres no way for my velocity z and x, to reach 0, because it just fights between both positive and negative values, according to my code also.

But I can't see any other way, to stop this from happening, and decreasing correctly to 0.

My code:

if((!cc.isGrounded)) {
    velocity.y -= gravity;
}

if((velocity.z != 0)) {
    velocity.z = Mathf.Lerp(velocity.z, 0, deaccelerationSpeed);
}

if((velocity.x != 0)) {
    velocity.x = Mathf.Lerp(velocity.x, 0, deaccelerationSpeed);
}

if(isRightDown) {
    velocity.x = sidewayMovementSpeed;  
} else if(isLeftDown) {
    velocity.x = -sidewayMovementSpeed; 
}

if(isForwardDown) {
    velocity.z = forwardMovementSpeed;  
} else if(isBackDown) {
    velocity.z = -backwardMovementSpeed;
}

What I'm pretty much is asking, is there any different way to handle velocity, or is there a fix to my problem?

Upvotes: 0

Views: 670

Answers (1)

Dan Homola
Dan Homola

Reputation: 4545

You could implement some logic that will treat small values of velocity as 0, so that it wouldn't oscillate between positive and negative values.

EDIT:

Something like this

if(Math.Abs(velocity.x) > TOLERATED_VELOCITY)
{
    velocity.x = Mathf.Lerp(velocity.x, 0, deaccelerationSpeed);
}
else
{
    velocity.x = 0;
}

where TOLERATED_VELOCITY is a constant specifying which values of velocity to consider zero.

Upvotes: 2

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