Fixes 0 health actor being selected

src/BattleMovr.ts

@@ -6,6 +6,22 @@ import { IBattleMovr, IBattleMovrSettings } from "./IBattleMovr";
 import { ISelectorFactories } from "./Selectors";
 import { IActionsOrderer, ITeamBase, ITeamDescriptor, Team } from "./Teams";
 
+/**
+ * Finds the index of the first alive actor.
+ *
+ * @param actors   A list of actors to be sent out into battle.
+ * @returns Index of the first alive actor.
+ */
+const findFirstAliveIndex = (actors: IActor[]) => {
+    for (let i = 0; i < actors.length; i += 1) {
+        if (actors[i].statistics.health.current !== 0) {
+            return i;
+        }
+    }
+
+    throw new Error("Cannot create team since no actors are alive.");
+};
+
 /**
  * Drives RPG-like battles between two teams of actors.
  */
@@ -160,11 +176,12 @@ export class BattleMovr implements IBattleMovr {
             throw new Error(`Unknown selector type: '${team.selector}.`);
         }
 
+        const firstAliveIndex = findFirstAliveIndex(team.actors);
         return {
             ...team,
             orderedActors: team.actors.slice(),
-            selectedActor: team.actors[0],
-            selectedIndex: 0,
+            selectedActor: team.actors[firstAliveIndex],
+            selectedIndex: firstAliveIndex,
             selector: selectorFactory(),
         };
     }