Add skills

src/playerprogress.ts

@@ -1,8 +1,11 @@
-import {Stat} from "./datatypes.ts";
+import {Skill, Stat} from "./datatypes.ts";
+import {getSkills} from "./skills.ts";
 
 export class PlayerProgress {
   #stats: Record<Stat, number>
   #blood: number
+  #skillsLearned: number[]  // use the raw ID representation for indexOf
+  #untrimmedSkillsAvailable: Skill[]
 
   constructor() {
     this.#stats = {
@@ -10,14 +13,63 @@ export class PlayerProgress {
       INT: 10,
       CHA: 10,
       PSI: 10,
-    }
+    };
     this.#blood = 0;
+    this.#skillsLearned = [];
+    this.#untrimmedSkillsAvailable = []
 
     this.refill();
   }
 
   refill() {
     this.#blood = 2000;
+
+    let learnableSkills = [];  // TODO: Also include costing info
+    for (let skill of getSkills().getAllAvailableSkills().values()) {
+      if (this.#canBeAvailable(skill)) {
+        learnableSkills.push(skill);
+      }
+    }
+
+    this.#untrimmedSkillsAvailable = learnableSkills
+  }
+
+  hasLearned(skill: Skill) {
+    return this.#skillsLearned.indexOf(skill.id) !== -1;
+  }
+
+  learnSkill(skill: Skill) {
+    if (this.#skillsLearned.indexOf(skill.id) != -1) {
+      return
+    }
+    this.#skillsLearned.push(skill.id);
+
+    // remove entries for that skill
+    let skills2 = [];
+    for (let entry of this.#untrimmedSkillsAvailable.values()) {
+      if (entry.id == skill.id) { continue; }
+      skills2.push(entry);
+    }
+    this.#untrimmedSkillsAvailable = skills2;
+  }
+
+  #canBeAvailable(skill: Skill) {
+    // make sure we haven't learned this skill already
+    if (this.hasLearned(skill)) {
+      return false;
+    }
+
+    let data = getSkills().get(skill);
+
+    // make sure the prereqs are met
+    for (let prereq of data.prereqs.values()) {
+      if (!this.hasLearned(prereq)) {
+        return false
+      }
+    }
+
+    // ok, we're good!!
+    return true;
   }
 
   add(stat: Stat, amount: number) {
@@ -41,6 +93,11 @@ export class PlayerProgress {
   spendBlood(amt: number) {
     this.#blood -= amt;
   }
+
+  getAvailableSkills(): Skill[] {
+    // TODO: Sort by cost, then by name, then trim down to first 8
+    return this.#untrimmedSkillsAvailable
+  }
 }
 
 let active: PlayerProgress = new PlayerProgress();