Move sorting to BattleScene

src/battle-scene.ts

@@ -2879,6 +2879,25 @@ export default class BattleScene extends SceneBase {
     return false;
   }
 
+  /**
+   * Sorts the first consecutive set of occurences of {@linkcode targetPhase} in {@linkcode phaseQueue}
+   * @param targetPhase The type of phase to search for and sort
+   * @param by A function to compare the phases with
+   * @see {@linkcode Array.sort} for the comparison function
+   */
+  sortPhaseType(targetPhase: Constructor<Phase>, by: (a: Phase, b: Phase) => number): void {
+    const startIndex = this.phaseQueue.findIndex(phase => phase instanceof targetPhase);
+    if (startIndex === -1) {
+      return;
+    }
+    const endIndex = this.phaseQueue.findIndex((phase, index) => index > startIndex && !(phase instanceof targetPhase));
+
+    const sortedSubset = this.phaseQueue
+      .slice(startIndex, endIndex !== -1 ? endIndex + 1 : this.phaseQueue.length)
+      .sort(by);
+    this.phaseQueue.splice(startIndex, sortedSubset.length, ...sortedSubset);
+  }
+
   /**
    * Adds a MessagePhase, either to PhaseQueuePrepend or nextCommandPhaseQueue
    * @param message string for MessagePhase

src/phases/post-summon-phase.ts

@@ -64,7 +64,8 @@ export class PostSummonPhase extends PokemonPhase {
   }
 
   private orderPostSummonPhases() {
-    globalScene.phaseQueue.sort(
+    globalScene.sortPhaseType(
+      PostSummonPhase,
       (phaseA: PostSummonPhase, phaseB: PostSummonPhase) =>
         phaseB.getPokemon().getEffectiveStat(Stat.SPD) - phaseA.getPokemon().getEffectiveStat(Stat.SPD),
     );