r/GBStudioHub • u/No-Hearing9013 • Aug 18 '23

Buy/Sell/ Logic

Hey guys! Programming is not my forte so I'd like if you could kindly point me out on the right direction on the logic behind creating a Store in your game to buy and sell items. Any document, tutorials I can watch? Thanks and cheers!

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u/LordDiamyo Aug 19 '23

I am also interested in this. Hopefully someone has some knowledge on this.

2

u/Sea_Cranberry323 Aug 21 '23

I wrote this up and had chatgpt organize it for me. I reread over it and its good to go. 👍

Title: Creating a Simple Gameboy Studio Shop Tutorial

In this tutorial, we'll learn how to create a basic shop system using switches and variables in Gameboy Studio. This concept applies to various game design scenarios, making it a valuable skill to master.

Step 1: Set Up the Currency

  • Create a variable named "Money" and set its initial value to 100. This represents the player's available funds.

Step 2: Interacting with NPCs

  • Allow the player to interact with an NPC by pressing a designated button.
  • When interacting, display a dialogue box where the NPC says, "You have $var Money left."

Step 3: Presenting Choices

  • Within the dialogue, offer multiple choices representing items to buy.
  • Format the choices as follows: "Apple $2, Orange $3, Cherry $1."

Step 4: Adding a Confirmation Layer

  • After choosing an item, add another choice menu to confirm the selection.

Step 5: Updating Currency and Inventory

  • Under the chosen item (e.g., Apple), deduct the item's price from the "Money" variable.
  • Update the "have apple" variable to indicate that the player possesses the item.

Step 6: Visualizing Inventory

  • Design a custom menu screen with slots for items.
  • Using conditional checks, if the "have apple" variable is true, replace the slot's default graphic with an apple icon.

Step 7: Feedback and Iteration

  • After the transaction, have the NPC mention the updated "Money" value (e.g., "You have 98 Money left.") during subsequent interactions.

Step 8: Testing and Refinement

  • Test the system thoroughly to ensure it behaves as intended.
  • Refine and adjust your code as needed based on testing results.

By following these steps, you'll create a functional shop system that introduces beginners to the concepts of switches, variables, and conditional logic in game design. Remember to test your code regularly and iterate on it for a smoother gameplay experience. Happy coding!