Credit map interaction entities
*Created by: srcanseco*
These are entity proposals to interact with the persistence model related to credits:
**target_credits_give** `quantity`
Give credits to the player who triggered it given a `quantity`.
**target_credits_spend** `quantity` `target_fail` `target_success`
Check for player current credits and if doesn't have enough trigger `target_fail`, if it does, trigger `target_success` and remove credits to the player who triggered it given a `quantity`.
**target_credits_atm**
Shows current balance on activation.
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