107 lines
3.6 KiB
C++
107 lines
3.6 KiB
C++
#pragma once
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#include <easy2d/core/types.h>
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#include <easy2d/animation/animation_clip.h>
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#include <easy2d/animation/interpolation_engine.h>
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#include <functional>
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#include <string>
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namespace easy2d {
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// ============================================================================
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// 动画播放状态
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// ============================================================================
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enum class AnimPlayState : uint8 {
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Stopped,
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Playing,
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Paused
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};
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// ============================================================================
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// AnimationController - 动画播放控制器
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// 借鉴 Cocos Creator 的 AnimationState：纯播放逻辑，不持有渲染资源
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// ============================================================================
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class AnimationController {
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public:
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// 回调类型定义
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using FrameChangeCallback = std::function<void(size_t oldIdx, size_t newIdx,
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const AnimationFrame& frame)>;
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using KeyframeCallback = std::function<void(int flagIndex)>;
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using SoundTriggerCallback = std::function<void(const std::string& path)>;
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using CompletionCallback = std::function<void()>;
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AnimationController() = default;
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// ------ 绑定动画数据 ------
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void setClip(Ptr<AnimationClip> clip);
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Ptr<AnimationClip> getClip() const { return clip_; }
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// ------ 播放控制 ------
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void play();
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void pause();
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void resume();
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void stop();
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void reset();
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// ------ 帧控制 ------
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void setFrameIndex(size_t index);
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void nextFrame();
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void prevFrame();
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// ------ 核心更新（每帧调用）------
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void update(float dt);
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// ------ 状态查询 ------
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AnimPlayState getState() const { return state_; }
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bool isPlaying() const { return state_ == AnimPlayState::Playing; }
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bool isPaused() const { return state_ == AnimPlayState::Paused; }
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bool isStopped() const { return state_ == AnimPlayState::Stopped; }
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size_t getCurrentFrameIndex() const { return currentFrameIndex_; }
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size_t getTotalFrames() const;
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const AnimationFrame& getCurrentFrame() const;
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float getPlaybackSpeed() const { return playbackSpeed_; }
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void setPlaybackSpeed(float speed) { playbackSpeed_ = speed; }
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bool isLooping() const;
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void setLooping(bool loop);
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// ------ 插值状态 ------
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float getInterpolationFactor() const { return interpolationFactor_; }
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bool isInterpolating() const { return interpolating_; }
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// ------ 回调注册 ------
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void setFrameChangeCallback(FrameChangeCallback cb) { onFrameChange_ = std::move(cb); }
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void setKeyframeCallback(KeyframeCallback cb) { onKeyframe_ = std::move(cb); }
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void setSoundTriggerCallback(SoundTriggerCallback cb) { onSoundTrigger_ = std::move(cb); }
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void setCompletionCallback(CompletionCallback cb) { onComplete_ = std::move(cb); }
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private:
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Ptr<AnimationClip> clip_;
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AnimPlayState state_ = AnimPlayState::Stopped;
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size_t currentFrameIndex_ = 0;
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float accumulatedTime_ = 0.0f; // 当前帧已累积时间 (ms)
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float playbackSpeed_ = 1.0f;
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bool loopOverride_ = false; // 外部循环覆盖值
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bool hasLoopOverride_ = false; // 是否使用外部循环覆盖
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// 插值状态
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bool interpolating_ = false;
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float interpolationFactor_ = 0.0f;
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// 回调
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FrameChangeCallback onFrameChange_;
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KeyframeCallback onKeyframe_;
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SoundTriggerCallback onSoundTrigger_;
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CompletionCallback onComplete_;
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// 内部方法
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void advanceFrame(size_t newIndex);
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void processFrameProperties(const AnimationFrame& frame);
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void updateInterpolation();
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};
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} // namespace easy2d
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