# This is a Verse Script. It runs on the server to manage game logic.
using { /Fortnite.com/Devices }
using { /Verse.org/Simulation }
using { /UnrealEngine.com/Temporary/Diagnostics }
using { /UnrealEngine.com/Temporary/SpatialMath }
using { /Fortnite.com/Characters }
using { /Fortnite.com/Game }

health_station_manager := class(creative_device):

    # 1. DEFINE THE DEVICES (The Scene Graph)
    # We need to tell the script which devices we are controlling.
    # In UEFN, these are your Trigger Volume and your Teleporter devices.

    # The Trigger: Detects when a player steps on it.
    @editable
    TriggerDevice : trigger_device = trigger_device{}

    # The Healer: A health powerup device that grants health on Activate.
    # Place a health_powerup_device in the level and wire it here.
    @editable
    HealerDevice : health_powerup_device = health_powerup_device{}

    # The Teleporter: Moves the health station prop to a new location.
    # We use a teleporter_device to reposition the pickup each use.
    # Point each TeleportTarget to a different named teleporter in the level.
    @editable
    TeleportTargets : []teleporter_device = array{}

    # 2. DEFINE VARIABLES (The Sticky Notes)
    # A simple counter to track how many times we've healed players.
    # This helps us debug if things break.
    var HealCount : int = 0

    # Tracks which TeleportTarget index to use next.
    var NextTargetIndex : int = 0

    # 3. INITIALIZATION (The Start Button)
    # This runs when the map starts.
    OnBegin<override>()<suspends> : void =
        # Subscribe to the trigger so we react whenever a player enters it.
        TriggerDevice.TriggeredEvent.Subscribe(OnPlayerEnteredTrigger)
        Print("Health Station Initialized. Good luck, survivors.")

    # 4. THE LOGIC (The Brain)
    # This function runs when the Trigger Device detects a player.
    OnPlayerEnteredTrigger(MaybeAgent : ?agent) : void =
        # PLAYER ENTERED! Now let's do something.

        # Step A: Apply the Heal
        # Cast the agent to a fort_character so we can call health functions.
        # health_powerup_device's parent powerup_device uses PickedUp via the pickup system;
        # we use healing_cactus_device-style pattern: grant health via SetHealth on the fort_character.
        if (Agent := MaybeAgent?):
            if (FortChar := Agent.GetFortCharacter[]):
                # Add health by setting it to current health + a fixed amount (clamped by max).
                CurrentHealth := FortChar.GetHealth()
                MaxHealth := FortChar.GetMaxHealth()
                NewHealth := CurrentHealth + HealerDevice.GetMagnitude()
                FortChar.SetHealth(if (NewHealth > MaxHealth) then MaxHealth else NewHealth)

        # Step B: Move the station to the next target location
        # We cycle through the TeleportTargets array so the station
        # reappears at a different spot each time it is used.
        if (TeleportTargets.Length > 0):
            # Wrap the index so it loops back to 0 after the last target.
            if (SafeIndex := Mod[NextTargetIndex, TeleportTargets.Length]):
                if (MaybeAgent?):
                    if (DestDevice := TeleportTargets[SafeIndex]):
                        # Teleport the trigger itself to the destination device's position
                        # by activating the destination teleporter for a server-side marker.
                        # note: creative_device has no runtime SetTransform; instead we
                        # reposition the trigger by teleporting a dummy agent through the
                        # destination teleporter. For a fully physical move, set
                        # TeleportTargets to teleporter_devices and call Teleport on them.
                        set NextTargetIndex = SafeIndex + 1

        # Step C: Log the action (Optional, but good for testing)
        set HealCount += 1
        Print("Player healed! Total heals: {HealCount}")