Update lottie-ios

submodules/lottie-ios/Sources/Public/DynamicProperties/ValueProviders/PointValueProvider.swift

@@ -0,0 +1,69 @@
+//
+//  PointValueProvider.swift
+//  lottie-swift
+//
+//  Created by Brandon Withrow on 2/4/19.
+//
+
+import CoreGraphics
+import Foundation
+/// A `ValueProvider` that returns a CGPoint Value
+public final class PointValueProvider: ValueProvider {
+
+  // MARK: Lifecycle
+
+  /// Initializes with a block provider
+  public init(block: @escaping PointValueBlock) {
+    self.block = block
+    point = .zero
+  }
+
+  /// Initializes with a single point.
+  public init(_ point: CGPoint) {
+    self.point = point
+    block = nil
+    hasUpdate = true
+  }
+
+  // MARK: Public
+
+  /// Returns a CGPoint for a CGFloat(Frame Time)
+  public typealias PointValueBlock = (CGFloat) -> CGPoint
+
+  public var point: CGPoint {
+    didSet {
+      hasUpdate = true
+    }
+  }
+
+  // MARK: ValueProvider Protocol
+
+  public var valueType: Any.Type {
+    Vector3D.self
+  }
+
+  public var storage: ValueProviderStorage<Vector3D> {
+    if let block = block {
+      return .closure { frame in
+        self.hasUpdate = false
+        return block(frame).vector3dValue
+      }
+    } else {
+      hasUpdate = false
+      return .singleValue(point.vector3dValue)
+    }
+  }
+
+  public func hasUpdate(frame _: CGFloat) -> Bool {
+    if block != nil {
+      return true
+    }
+    return hasUpdate
+  }
+
+  // MARK: Private
+
+  private var hasUpdate = true
+
+  private var block: PointValueBlock?
+}