82 lines
1.8 KiB
C++
82 lines
1.8 KiB
C++
#include <extra2d/scene/transition_scene.h>
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#include <extra2d/graphics/render_backend.h>
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#include <extra2d/utils/logger.h>
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namespace extra2d {
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TransitionScene::TransitionScene(float duration, Ptr<Scene> inScene)
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: duration_(duration), inScene_(inScene) {}
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void TransitionScene::onEnter() {
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// 调用基类的 onEnter
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Scene::onEnter();
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// 调用退出场景的 onExitTransitionDidStart
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if (outScene_) {
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outScene_->onExitTransitionDidStart();
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}
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// 调用进入场景的 onEnter
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if (inScene_) {
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inScene_->onEnter();
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inScene_->onAttachToScene(inScene_.get());
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}
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// 启动过渡
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onTransitionStart();
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}
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void TransitionScene::onExit() {
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// 调用退出场景的 onExit
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if (outScene_) {
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outScene_->onExit();
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outScene_->onDetachFromScene();
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}
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// 调用进入场景的 onEnterTransitionDidFinish
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if (inScene_) {
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inScene_->onEnterTransitionDidFinish();
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}
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// 调用基类的 onExit
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Scene::onExit();
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}
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void TransitionScene::finish() {
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if (isFinished_) {
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return;
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}
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isFinished_ = true;
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E2D_LOG_DEBUG("TransitionScene::finish - 过渡完成，切换到目标场景");
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// 调用完成回调，通知 SceneManager 进行场景切换
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if (finishCallback_) {
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finishCallback_();
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}
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}
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void TransitionScene::renderContent(RenderBackend &renderer) {
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// 在 TransitionScene 上渲染新旧两个子场景
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// 子类可以重写此方法来控制渲染顺序和效果
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// 默认先渲染退出场景，再渲染进入场景（在上方）
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drawOutScene(renderer);
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drawInScene(renderer);
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}
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void TransitionScene::drawOutScene(RenderBackend &renderer) {
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if (outScene_) {
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outScene_->renderContent(renderer);
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}
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}
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void TransitionScene::drawInScene(RenderBackend &renderer) {
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if (inScene_) {
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inScene_->renderContent(renderer);
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}
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}
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} // namespace extra2d
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