add pathfinding.remove_agent

src/voxels/Pathfinding.cpp

@@ -63,6 +63,15 @@ int Pathfinding::createAgent() {
     return id;
 }
 
+bool Pathfinding::removeAgent(int id) {
+    auto found = agents.find(id);
+    if (found != agents.end()) {
+        agents.erase(found);
+        return true;
+    }
+    return false;
+}
+
 void Pathfinding::performAllAsync(int stepsPerAgent) {
     for (auto& [id, agent] : agents) {
         if (agent.state.finished) {