# This script makes a potion shop work.

# We need to talk to the button and the player.
# A "Device" is any object in our game world.
# We use "Event" to wait for something to happen.

Event OnPlayerInteracts(player: Player, button: TextButton):
    # Check if the player is the one pressing the button.
    # We use "if" to ask a question.
    if button.IsPressed(player):
        
        # Check the player's score.
        # Score is like a variable that counts points.
        # We treat score as "coins" for this shop.
        coins := player.GetScore()
        
        # Does the player have 10 coins?
        if coins >= 10:
            
            # Take 10 coins away.
            # This is like paying for the item.
            player.SetScore(coins - 10)
            
            # Give the player a Health Potion.
            # We use "Grant" to add an item to their inventory.
            # "Health_Potion" is the name of the item.
            player.Grant(Health_Potion)
            
            # Tell the player "Thanks!"
            # We use "ShowMessage" to talk to them.
            player.ShowMessage("You bought a potion!")
        else:
            # Not enough coins.
            player.ShowMessage("You need 10 coins!")