133 lines
3.6 KiB
C++
133 lines
3.6 KiB
C++
#include "AnimationMap.h"
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#include "EngineCore/Game.h"
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#include "EngineFrame/Render/RenderManager.h"
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AnimationMap::~AnimationMap()
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{
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}
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void AnimationMap::CompleteConstruction()
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{
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m_size = {800, 600};
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// 遍历自己的所持有的所有Ani 取最大的尺寸
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auto &ac = this->GetAllChildren();
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RefPtr<Node> child = ac.GetFirst();
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while (child)
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{
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Animation *anim = static_cast<Animation *>(child.Get());
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auto size = anim->GetMaxSize();
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if (size.width > m_size.width)
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m_size.width = size.width;
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if (size.height > m_size.height)
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m_size.height = size.height;
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child = child->GetNext();
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}
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SetSize(m_size);
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// 创建指定大小的纹理
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m_texture = new Texture();
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m_texture->Init(m_size);
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// 构造FBO
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glGenFramebuffers(1, &m_fbo);
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glBindFramebuffer(GL_FRAMEBUFFER, m_fbo);
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// 将目标纹理附加到FBO的颜色附着点
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glFramebufferTexture2D(
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GL_FRAMEBUFFER, // 帧缓冲类型
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GL_COLOR_ATTACHMENT0, // 颜色附着点（可多个，这里用第一个）
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GL_TEXTURE_2D, // 纹理类型
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m_texture->getID(), // 目标纹理ID
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0 // 多级渐远纹理级别
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);
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glBindFramebuffer(GL_FRAMEBUFFER, 0); // 解绑FBO
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}
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void AnimationMap::AddAnimation(RefPtr<Animation> animation)
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{
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this->AddChild(animation);
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}
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void AnimationMap::Reset()
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{
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auto &ac = this->GetAllChildren();
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RefPtr<Node> child = ac.GetFirst();
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while (child)
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{
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Animation *anim = static_cast<Animation *>(child.Get());
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anim->Reset();
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child = child->GetNext();
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}
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}
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void AnimationMap::Render()
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{
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Actor::PreRender();
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Actor::PrepareToRender();
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Actor::OnRender();
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}
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void AnimationMap::OnRender()
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{
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RenderManager *renderer = Game::GetInstance().GetRenderer();
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renderer->DrawTexture(m_texture);
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}
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void AnimationMap::OnUpdate(float deltaTime)
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{
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Actor::OnUpdate(deltaTime);
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RenderManager *renderer = Game::GetInstance().GetRenderer();
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// 绑定FBO
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glBindFramebuffer(GL_FRAMEBUFFER, m_fbo);
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// 清屏
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glClear(GL_COLOR_BUFFER_BIT);
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// 保存原始的正交矩阵 设置纹理对应的正交矩阵 和 视口
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Oom = renderer->GetOrthoMatrix();
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renderer->SetOrthoMatrix(glm::ortho(0.0f, (float)m_size.width, 0.0f, (float)m_size.height, -1.0f, 1.0f));
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Oviewport = renderer->GetViewport();
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renderer->SetViewport({0, 0, m_size.width, m_size.height});
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// 以上步骤将渲染目标调整至AniMap的纹理上
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SDL_Rect buf;
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buf.x = 0;
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buf.y = 0;
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buf.w = m_size.width;
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buf.h = m_size.height;
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glm::vec4 red = {0.0f, 0.0f, 1.0f, 0.4f}; // RGBA：红色，不透明基础色
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Game::GetInstance().GetRenderer()->DrawRect(&buf, red);
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auto &ac = this->GetAllChildren();
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RefPtr<Node> child = ac.GetFirst();
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while (child)
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{
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child->Render();
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child = child->GetNext();
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}
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// 渲染完毕后，将渲染目标恢复为默认
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// 解绑FBO
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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// 恢复原始的正交矩阵 和 视口
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renderer->SetOrthoMatrix(Oom);
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renderer->SetViewport(Oviewport);
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Actor::OnUpdate(deltaTime);
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}
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// void AnimationMap::SetVisible(bool visible)
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// {
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// if (this->IsVisible() == visible)
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// return;
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// Actor::SetVisible(visible);
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// auto ac = this->GetAllChildren();
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// RefPtr<Node> next;
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// for (RefPtr<Node> child = ac.GetFirst(); child; child = next)
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// {
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// next = child->GetNext();
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// child->SetVisible(visible);
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// }
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// }
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AnimationMap::AnimationMap()
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{
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}
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