spine-runtimes/spine-flutter/lib/generated/animation.dart

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// AUTO GENERATED FILE, DO NOT EDIT.

import 'package:universal_ffi/ffi.dart';
import 'package:universal_ffi/ffi_utils.dart';
import 'spine_dart_bindings_generated.dart';
import '../spine_bindings.dart';
import 'arrays.dart';
import 'skeleton.dart';

/// Stores a list of timelines to animate a skeleton's pose over time.
class Animation {
  final Pointer<spine_animation_wrapper> _ptr;

  Animation.fromPointer(this._ptr);

  /// Get the native pointer for FFI calls
  Pointer get nativePtr => _ptr;

  factory Animation(String name, ArrayTimeline timelines, double duration) {
    final ptr = SpineBindings.bindings
        .spine_animation_create(name.toNativeUtf8().cast<Char>(), timelines.nativePtr.cast(), duration);
    return Animation.fromPointer(ptr);
  }

  void dispose() {
    SpineBindings.bindings.spine_animation_dispose(_ptr);
  }

  /// If the returned array or the timelines it contains are modified,
  /// setTimelines() must be called.
  ArrayTimeline get timelines {
    final result = SpineBindings.bindings.spine_animation_get_timelines(_ptr);
    return ArrayTimeline.fromPointer(result);
  }

  set timelines(ArrayTimeline value) {
    SpineBindings.bindings.spine_animation_set_timelines(_ptr, value.nativePtr.cast());
  }

  /// Returns true if this animation contains a timeline with any of the
  /// specified property IDs.
  bool hasTimeline(ArrayPropertyId ids) {
    final result = SpineBindings.bindings.spine_animation_has_timeline(_ptr, ids.nativePtr.cast());
    return result;
  }

  /// The duration of the animation in seconds, which is usually the highest
  /// time of all frames in the timeline. The duration is used to know when it
  /// has completed and when it should loop back to the start.
  double get duration {
    final result = SpineBindings.bindings.spine_animation_get_duration(_ptr);
    return result;
  }

  set duration(double value) {
    SpineBindings.bindings.spine_animation_set_duration(_ptr, value);
  }

  /// Applies the animation's timelines to the specified skeleton.
  ///
  /// See Timeline::apply().
  ///
  /// [skeleton] The skeleton the animation is applied to. This provides access to the bones, slots, and other skeleton components the timelines may change.
  /// [lastTime] The last time in seconds this animation was applied. Some timelines trigger only at discrete times, in which case all keys are triggered between lastTime (exclusive) and time (inclusive). Pass -1 the first time an animation is applied to ensure frame 0 is triggered.
  /// [time] The time in seconds the skeleton is being posed for. Timelines find the frame before and after this time and interpolate between the frame values.
  /// [loop] True if time beyond the getDuration() repeats the animation, else the last frame is used.
  /// [events] If any events are fired, they are added to this list. Can be NULL to ignore fired events or if no timelines fire events.
  /// [alpha] 0 applies setup or current values (depending on fromSetup), 1 uses timeline values, and intermediate values interpolate between them. Adjusting alpha over time can mix an animation in or out.
  /// [fromSetup] If true, alpha transitions between setup and timeline values, setup values are used before the first frame (current values are not used). If false, alpha transitions between current and timeline values, no change is made before the first frame.
  /// [add] If true, for timelines that support it, their values are added to the setup or current values (depending on fromSetup).
  /// [out] True when the animation is mixing out, else it is mixing in. Used by timelines that perform instant transitions.
  /// [appliedPose] True to modify the applied pose, else the pose is modified.
  void apply(Skeleton skeleton, double lastTime, double time, bool loop, ArrayEvent? events, double alpha,
      bool fromSetup, bool add, bool out, bool appliedPose) {
    SpineBindings.bindings.spine_animation_apply(_ptr, skeleton.nativePtr.cast(), lastTime, time, loop,
        events?.nativePtr.cast() ?? Pointer.fromAddress(0), alpha, fromSetup, add, out, appliedPose);
  }

  /// The animation's name, which is unique across all animations in the
  /// skeleton.
  String get name {
    final result = SpineBindings.bindings.spine_animation_get_name(_ptr);
    return result.cast<Utf8>().toDartString();
  }

  /// The bone indices affected by this animation.
  ArrayInt get bones {
    final result = SpineBindings.bindings.spine_animation_get_bones(_ptr);
    return ArrayInt.fromPointer(result);
  }

  /// [target] After the first and before the last entry.
  static int search(ArrayFloat values, double target) {
    final result = SpineBindings.bindings.spine_animation_search_1(values.nativePtr.cast(), target);
    return result;
  }

  static int search2(ArrayFloat values, double target, int step) {
    final result = SpineBindings.bindings.spine_animation_search_2(values.nativePtr.cast(), target, step);
    return result;
  }
}