Gambling Mode: Bigger Than Target

[pirak]

Is your feature request related to a problem? Please describe.
A different gambling mode should exist where all users that roll above a certain threshold get a payout, rolls below lose all gambled points. Optionally, if a specific roll comes up, the user wins the jackpot.

Describe the solution you'd like

• Add the new mode that implements the GambleMode interface.
  • The GambleHandler already supports changing modes via the interface.
• Add a new parameter to be able to switch between available modes in Firebot (dropdown parameter selection is supported).
  • That should also make it easier in future to add more modes.
• Add additional parameters needed to configure the new mode:
  • threshold (number): above which a payout is possible; if this value is rolled exactly, a neutral result should be created
  • max roll: (number): to set set the range in which the random number can be to [0, maxRoll]
  • jackpot target (number): a roll value that should be rolled exactly to result in a jackpot payout; set to -1 to disable
  • win scale factor (number): a factor by which the entered points should be scaled on a win; e.g. a user has 1000 points and gambles 100 of those. With a factor of 2 they should have 1200 points after a win.

Describe alternatives you've considered
none

Additional context
none