Create Your Own NPC Medic In Unreal Editor

Medics are a common character archetype in many games. A medic's job is to heal nearby characters, and they help their teammates recover after sustaining damage. Medics serve different roles depending on the game, for instance, doctors that serve patients in a hospital, combat medics that help their team fight as well as heal, or neutral stations that heal anyone.

The medic character you'll create in this example follows a set of logic rules.

• Idle:
• Begin Healing Agents
• Healing Loop
• Navigate to Agent

The medic begins idle, and patrols until an agent enters the healing zone. That agent gets added to the medic's healing queue. The medic needs to track the agent it needs to heal next, and a queue provides a useful data structure for this purpose since queues are a first-in, first-out data structure. This means the character that enters the healing zone first will be the first to get healed.

Once the medic gets the agent it needs to heal next, it first checks if the agent's health is below the healing threshold. If so, it begins healing them at a specific rate until the agent's health reaches the threshold, or the agent exits the healing zone. While healing, the medic will attempt to stay close to the agent by continuously navigating to them. Once the agent's health is back up to the threshold, the medic gets the next agent to heal and starts the process over again. If there are no agents to heal, the medic goes back to being idle.