Initial commit

Game/Item.js

@@ -0,0 +1,61 @@
+const itemTable         = require("../Data/items");
+const constants         = require("../Data/constants");
+
+const { CATEGORIES }    = constants;
+const { CATEGORY_ITEM } = CATEGORIES;
+
+class Item {
+    constructor(config) {
+        this.categoryID = CATEGORY_ITEM;
+        this.id = config.id;
+        this.amount = config.amount;
+        this.affects = config.affects;
+        this.scale = config.scale;
+        this.isDurable = config.isDurable;
+        this.time = config.time;
+        this.isActive = false;
+    }
+
+    use(amount) {
+        const itemScheme = itemTable[this.id];
+        if (!itemScheme) return;
+
+        if (!this.amount) return global.logger.send({ event: "itemUsage", reason: "item amount is 0" });
+        
+        if (!amount) amount = 1;
+        
+        const removedAmount = Math.min(amount, this.amount);
+        this.amount -= removedAmount;
+
+        if (!this.amount && itemScheme.isDurable) this.isActive = false;
+
+        return { 
+            scale: this.scale, 
+            statusID: itemScheme.statusID, 
+            isStatusActive: this.amount && itemScheme.isDurable
+        };
+    }
+
+    activate(amount) {
+        const itemScheme = itemTable[this.id];
+        if (!itemScheme) return;
+        if (!this.amount) return;
+
+        if (!amount) amount = 1;
+
+        const removedAmount = itemScheme.useOnImpact ? Math.min(amount, this.amount) : 0;
+
+        if (itemScheme.isDurable) this.isActive = true;
+        else {
+            this.nextUseAt = performance.now() + itemScheme.cooldown;
+            this.amount -= removedAmount;
+        };
+
+        return {
+            ...this,
+            removedAmount 
+        };
+    }
+};
+
+module.exports = Item;