[Task] Talk to NPCs ONLY once to get material

[MonitaMegaele]

Description

Task: Talk to NPCs ONLY once to get material.
Feature: NPC + Dialogue Sprint 4

Right now, Player can talk to NPCs to exploit material/item gains. We are going to fix this bug

Milestones

List of steps that need to be completed for this task.

• Fix Bug

Completion Deadline: Oct.18

Documentation

• [Main description of feature](../wiki/Dialogue + NPC)

Member

• Pengxu Chen (@viachen1)