Key-Door System

Overview

The key door system gates progression by requiring the player to carry a physical key to a locked door. When in range, an interaction prompt appears and the door unlocks with animation and audio.

GIF Preview

Main Responsibilities

• Checks if player is holding a valid key.
• Validates distance before unlocking.
• Handles animation, collision, and audio.
• Displays consistent interaction prompt.

Unlock Check

bool InRange()
{
    return Vector3.Distance(player.transform.position, door.transform.position) < unlockRange;
}

void TryUnlock()
{
    if (player.IsHoldingKey && InRange())
    {
        doorAnimator.SetTrigger("Unlock");
        doorCollider.enabled = false;
        FN_SoundManager.PlaySound(SoundType.DoorUnlock, 1f);
    }
}

Prompt Logic

void Update()
{
    if (player.IsHoldingKey && InRange())
    {
        interactPrompt.Show("Press E to unlock");
        
        if (Input.GetKeyDown(KeyCode.E))
            TryUnlock();
    }
    else
    {
        interactPrompt.Hide();
    }
}