feat: migrate JavaScript files to TypeScript, enhancing type safety and maintainability across the codebase

src/systems/SkillSystem.ts

@@ -0,0 +1,60 @@
+import { System } from '../core/System.ts';
+import { SkillRegistry } from '../skills/SkillRegistry.ts';
+import { SystemName, ComponentType } from '../core/Constants.ts';
+import type { Entity } from '../core/Entity.ts';
+import type { Skills } from '../components/Skills.ts';
+import type { Intent } from '../components/Intent.ts';
+
+/**
+ * System responsible for managing skill cooldowns and activating skills based on entity intent.
+ */
+export class SkillSystem extends System {
+  constructor() {
+    super(SystemName.SKILL);
+    this.requiredComponents = [ComponentType.SKILLS];
+    this.priority = 30;
+  }
+
+  /**
+   * Process all entities with skills, updating cooldowns and activating skills if intended.
+   * @param deltaTime - Time elapsed since last frame in seconds
+   * @param entities - Entities matching system requirements
+   */
+  process(deltaTime: number, entities: Entity[]): void {
+    entities.forEach((entity) => {
+      const skills = entity.getComponent<Skills>(ComponentType.SKILLS);
+      const intent = entity.getComponent<Intent>(ComponentType.INTENT);
+      if (!skills) return;
+
+      skills.updateCooldowns(deltaTime);
+
+      if (intent && intent.action === 'skill_use') {
+        const skillId = intent.data.skillId;
+        if (skillId && !skills.isOnCooldown(skillId)) {
+          this.activateSkill(entity, skillId);
+        }
+        intent.clear();
+      }
+    });
+  }
+
+  /**
+   * Activate a specific skill for an entity.
+   * @param entity - The entity performing the skill
+   * @param skillId - The ID of the skill to activate
+   */
+  activateSkill(entity: Entity, skillId: string): void {
+    const skill = SkillRegistry.get(skillId);
+    if (!skill) {
+      console.warn(`Skill not found: ${skillId}`);
+      return;
+    }
+
+    if (skill.activate(entity, this.engine)) {
+      const skills = entity.getComponent<Skills>(ComponentType.SKILLS);
+      if (skills) {
+        skills.setCooldown(skillId, skill.cooldown);
+      }
+    }
+  }
+}