Added changes to the module sand new file for itemdetails

modules/classes/itemdetails.ts

@@ -0,0 +1,176 @@
+const CLASS_WEAPON = 2;
+const CLASS_ARMOR = 4;
+
+const WEAPON_TYPES = {
+  0: "Axe",
+  1: "2H Axe",
+  2: "Bow",
+  3: "Gun",
+  4: "Mace",
+  5: "2H Mace",
+  6: "Polearm",
+  7: "Sword",
+  8: "2H Sword",
+  10: "Staff",
+  13: "Fist Weapon",
+  15: "Dagger",
+  16: "Thrown",
+  17: "Spear",
+  18: "Crossbow",
+  19: "Wand",
+};
+
+export class ItemDetails {
+  item: Item;
+  stats: Record<string, number>;
+
+  constructor(item: Item) {
+    this.item = item;
+    this.stats = {};
+  }
+
+  IsWeapon(): boolean {
+    return this.item.GetClass() === CLASS_WEAPON;
+  }
+
+  IsArmor(): boolean {
+    return this.item.GetClass() === CLASS_ARMOR;
+  }
+
+  IsMeleeWeapon(): boolean {
+    if (!this.IsWeapon()) {
+      return false;
+    }
+
+    const subClass = this.item.GetSubClass();
+    switch (WEAPON_TYPES[subClass]) {
+      case "Axe":
+      case "2H Axe":
+      case "Mace":
+      case "2H Mace":
+      case "Polearm":
+      case "Sword":
+      case "2H Sword":
+      case "Fist Weapon":
+      case "Dagger":
+      case "Spear":
+        if (this.HasCasterStats()) {
+          return false;
+        }
+        return true;
+      default:
+        return false;
+    }
+  }
+
+  IsCasterWeapon() {
+    if (!this.IsWeapon()) {
+      return false;
+    }
+
+    switch (WEAPON_TYPES[this.item.GetSubClass()]) {
+      case "Mace":
+      case "2H Mace":
+      case "Sword":
+      case "Dagger":
+      case "Wand":
+      case "Staff":
+        if (this.HasCasterStats()) {
+          return true;
+        }
+        return false;
+      default:
+        return false;
+    }
+  }
+
+  IsRangedWeapon() {
+    if (!this.IsWeapon()) {
+      return false;
+    }
+
+    switch (WEAPON_TYPES[this.item.GetSubClass()]) {
+      case "Bow":
+      case "Gun":
+      case "Thrown":
+      case "Crossbow":
+        return true;
+      default:
+        return false;
+    }
+  }
+
+  Is2HWeapon() {
+    if (!this.IsWeapon()) {
+      return false;
+    }
+
+    switch (WEAPON_TYPES[this.item.GetSubClass()]) {
+      case "2H Axe":
+      case "2H Mace":
+      case "Polearm":
+      case "2H Sword":
+      case "Staff":
+        return true;
+      default:
+        return false;
+    }
+
+    return false; 
+  }
+
+  HasCasterStats(): boolean {
+    const stats = this.GetStats();
+
+    if (Object.keys(stats).length === 0) {
+      return false;
+    }
+
+    const casterStats = [0, 5, 6, 18, 21, 27, 30, 41, 42, 43, 45, 47];
+    for (let i = 1; i <= 8; i++) {
+      let statType = stats[`StatType${i}`] ? <number>stats[`StatType${i}`] : 0;
+      if (casterStats.includes(statType)) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  HasDefensiveStats(): boolean {
+    const stats = this.GetStats();
+    if (Object.keys(stats).length === 0) {
+      return false;
+    }
+
+    const defStats = [1, 12, 13, 14, 15, 22, 23, 24, 25, 26, 27, 48];
+    for (let i = 1; i <= 8; i++) {
+      let statType = stats[`StatType${i}`] ? <number>stats[`StatType${i}`] : 0;
+      if (defStats.includes(statType)) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  GetStats(): Record<string, number> {
+    // return stats if we have already parsed them.
+    if (Object.keys(this.stats).length != 0) {
+      return this.stats;
+    }
+
+    const entry = this.item.GetEntry();
+    const query = WorldDBQuery(`SELECT 
+        StatType1, StatValue1, StatType2, StatValue2, StatType3, StatValue3, StatType4, StatValue4, 
+        StatType5, StatValue5, StatType6, StatValue6, StatType7, StatValue7, StatType8, StatValue8
+        FROM item_template 
+        WHERE entry = ${entry}`);
+
+    if (query.GetRowCount() === 0) {
+      return {};
+    }
+
+    return <Record<string, number>>query.GetRow();
+  }
+}