How do I create a Jump currency?

Something like gold in a Mario game but every time the player jumps past a double jump, it wastes 1 jump gold, how can I do that?

Use a global variable var_gold to store gold.

Have a sprite for your gold coins to collect.

Player on collision with goldsprite

- Add 1 to var_gold

- Destroy goldsprite

Set up a trigger that happens whenever your player double jumps. Maybe something like:

Player is jumping

On jump key pressed

On your double jump trigger

- Subtract 1 from var_gold

Set up a trigger that happens whenever your player double jumps.

On your double jump trigger

I Meant something like this:

You can double jump for free, but if you jump again after a double jump, only then will currency start depleting, with infinite further jumps after double (as long as the player has jump gold)