feat: Add star shape

src/constants/index.ts

@@ -11,3 +11,4 @@ export * from './property-type';
 export * from './shape-type';
 export * from './trim-mode';
 export * from './repeater-composite';
+export * from './star-type';

src/constants/star-type.ts

@@ -0,0 +1,4 @@
+export enum StarType {
+  STAR = 1,
+  POLYGON = 2,
+}

src/shapes/index.ts

@@ -9,3 +9,4 @@ export * from './stroke-shape';
 export * from './trim-shape';
 export * from './gradient-stroke-shape';
 export * from './repeater-shape';
+export * from './star-shape';

src/shapes/star-shape.ts

@@ -0,0 +1,86 @@
+import { PropertyType, ShapeType, StarType } from '../constants';
+import { Property } from '../properties';
+import { Shape } from './shape';
+
+/**
+ * Star shape type.
+ */
+export class StarShape extends Shape {
+  /**
+   * Shape type
+   */
+  public readonly type = ShapeType.STAR;
+
+  public position: Property = new Property(this, PropertyType.POSITION);
+
+  public innerRadius: Property = new Property(this, PropertyType.NUMBER);
+
+  public innerRoundness: Property = new Property(this, PropertyType.NUMBER);
+
+  public outerRadius: Property = new Property(this, PropertyType.NUMBER);
+
+  public outerRoundness: Property = new Property(this, PropertyType.NUMBER);
+
+  public rotation: Property = new Property(this, PropertyType.ROTATION);
+
+  public points: Property = new Property(this, PropertyType.NUMBER);
+
+  public starType: StarType = StarType.STAR;
+
+  /**
+   * Convert the Lottie JSON object to class instance.
+   *
+   * @param json    JSON object
+   * @returns       StarShape instance
+   */
+  public fromJSON(json: Record<string, any>): StarShape {
+    // Base shape
+    this.classNames = json.cl;
+    this.id = json.ln;
+    this.isHidden = json.hd;
+    this.matchName = json.mn;
+    this.name = json.nm;
+
+    // This shape
+    this.position.fromJSON(json.p);
+    this.innerRadius.fromJSON(json.ir);
+    this.innerRoundness.fromJSON(json.is);
+    this.outerRadius.fromJSON(json.or);
+    this.outerRoundness.fromJSON(json.os);
+    this.rotation.fromJSON(json.r);
+    this.points.fromJSON(json.pt);
+    this.starType = json.sy;
+
+    return this;
+  }
+
+  /**
+   * Convert the class instance to Lottie JSON object.
+   *
+   * Called by Javascript when serializing object with JSON.stringify()
+   *
+   * @returns       JSON object
+   */
+  public toJSON(): Record<string, any> {
+    return {
+      ty: this.type,
+
+      // Base shape
+      cl: this.classNames,
+      hd: this.isHidden,
+      ln: this.id,
+      mn: this.matchName,
+      nm: this.name,
+
+      // This shape
+      p: this.position,
+      ir: this.innerRadius,
+      is: this.innerRoundness,
+      or: this.outerRadius,
+      os: this.outerRoundness,
+      r: this.rotation,
+      pt: this.points,
+      sy: this.starType,
+    };
+  }
+}