refactor: reorg

src/samples/slay-the-spire-like/system/combat/effects.ts

@@ -1,6 +1,7 @@
 import {CombatEntity, EffectTable} from "./types";
 import {EffectData} from "@/samples/slay-the-spire-like/system/types";
 import {PlayerEntity} from "@/samples/slay-the-spire-like/system/combat/types";
+import {CombatState} from "./types";
 
 export function addEffect(effects: EffectTable, effect: EffectData, stacks: number){
     let current = effects[effect.id];
@@ -43,7 +44,10 @@ export function onPlayerItemEffectUpkeep(entity: PlayerEntity){
     }
 }
 
-// TODO
-export function onDraw(entity: PlayerEntity, cardId:string ){}
-// TODO
-export function onDiscard(entity: PlayerEntity, cardId: string){}
+export function* getAliveEnemies(state: CombatState) {
+    for (let enemy of state.enemies) {
+        if (enemy.isAlive) {
+            yield enemy;
+        }
+    }
+}