how can I make a character fly when holding down the jump button?

Questions & Answers
1

I have a character controlled with a character controller object. When I press the jump button my character jumps. If I press the button again in the air he jumps again (double jump). If I hold the jump button down I want the character to slowly fly upwards at a constant velocity, while still being able to move the character left and right ( It’s a 2D platformer). When I release the jump button I want the character to fall down. I want their to be a certain time limit that the character can “fly” though. For instance I have game objects in the game that the character needs to collect to keep flying. So without collecting them he can fly for a maximum of 8 seconds. I have tried a lot of different approaches to this but cannot get this to work. I’m hoping someone might have some suggestions for me. Thank you!

2

Well, I’m not too hot on specifics of CharacterControllers (Can’t stand 'em, never use 'em), but I can outline some pseudocode for you. What I’m writing here assumes that you want the action to be something like-

tap jump once: jump

tap jump again: double-jump

hold jump having let go of jump after the double-jump: fly upwards, constant speed.

bool hasDoubleJumped;
public float maxFlyTime;
float currentFlyTime;
if(on ground)
{
    hasDoubleJumped = false;
    currentFlyTime = 0;
}
if(jumpButton pressed down)
{
    if(on ground)
    {
        jump;
    }
    if(inAir)
    {
        if(!hasDoubleJumped)
        {
            doubleJump;
            hasDoubleJumped = true;
        }
    }
}
if(jumpButton held down && hasDoubleJumped && currentFlyTime < maxFlyTime)
{
    fly upward;
    currentFlyTime += Time.deltaTime;
} else {
    apply gravity;
}