使用ecs系统进行重构

assets/script/game/skill/DOTSystem.ts

@@ -0,0 +1,27 @@
+@ecs.registerSystem()
+export class DOTSystem extends ecs.System {
+    filter(): ecs.IMatcher {
+        return ecs.allOf(DOTComp);
+    }
+
+    update(entities: ecs.Entity[]) {
+        const delta = oops.timer.delta;
+        
+        entities.forEach(hero => {
+            const dot = hero.get(DOTComp);
+            dot.duration -= delta;
+
+            // 每秒伤害
+            if (dot.accumulator >= 1) {
+                hero.get(HeroModelComp).hp -= dot.damagePerSec;
+                dot.accumulator -= 1;
+            }
+            dot.accumulator += delta;
+
+            // 效果结束
+            if (dot.duration <= 0) {
+                hero.remove(DOTComp);
+            }
+        });
+    }
+}