Add basic gameobject system

frontend/src/scripts/math/vec2.ts

@@ -13,6 +13,10 @@ export class Vec2 extends Typed {
     return new Vec2(this.x * scalar, this.y * scalar);
   }
 
+  public times(other: Vec2): Vec2 {
+    return new Vec2(this.x * other.x, this.y * other.y);
+  }
+
   public add(other: Vec2): Vec2 {
     return new Vec2(this.x + other.x, this.y + other.y);
   }
@@ -21,6 +25,21 @@ export class Vec2 extends Typed {
     return new Vec2(this.x - other.x, this.y - other.y);
   }
 
+  public get length(): number {
+    return Math.sqrt(this.x * this.x + this.y * this.y);
+  }
+
+  public get normalized(): Vec2 {
+    return this.scale(1 / this.length);
+  }
+
+  public get clamped_0_1(): Vec2 {
+    return new Vec2(
+      Math.min(1, Math.max(0, this.x)),
+      Math.min(1, Math.max(0, this.y))
+    );
+  }
+
   public get list(): [number, number] {
     return [this.x, this.y];
   }