74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
#include "Sprite.h"
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#include "EngineCore/Game.h"
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#include "Text.h"
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#include "EngineFrame/Render/RenderManager.h"
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void Sprite::GenerateRenderMatrix() const
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{
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Matrix3x2 RenderBuffer = Matrix3x2::Translation(glm::vec2(m_texture->getPos().x, m_texture->getPos().y)) * GetTransformMatrix();
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// 构造OpenGl渲染矩阵
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render_matrix_ = glm::mat4(1.0f);
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// 填充旋转+缩放分量（2D 变换核心，对应 4x4 矩阵左上 2x2 区域）
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render_matrix_[0][0] = RenderBuffer[0]; // _11 → x轴缩放+旋转
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render_matrix_[0][1] = RenderBuffer[1]; // _12 → 影响y轴方向的旋转分量
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render_matrix_[1][0] = RenderBuffer[2]; // _21 → 影响x轴方向的旋转分量
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render_matrix_[1][1] = RenderBuffer[3]; // _22 → y轴缩放+旋转
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// 填充平移分量（对应 4x4 矩阵最后一行前两列，z轴平移为0）
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render_matrix_[3][0] = RenderBuffer[4]; // _31 → x方向平移（世界坐标）
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render_matrix_[3][1] = RenderBuffer[5]; // _32 → y方向平移（世界坐标）
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}
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void Sprite::Init()
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{
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SetSize(m_texture->getSize());
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}
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void Sprite::SetTexture(RefPtr<Texture> texture)
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{
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m_texture = texture;
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Init();
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}
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Sprite::Sprite(std::string imgPath, int Index)
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{
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this->imgPath = imgPath;
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this->Index = Index;
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m_texture = new Texture();
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m_texture->Init(imgPath, Index);
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Init();
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}
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Sprite::Sprite(std::string PngPath)
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{
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m_texture = new Texture();
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m_texture->Init(PngPath);
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Init();
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}
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Sprite::~Sprite()
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{
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}
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RefPtr<Texture> Sprite::GetTexture()
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{
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return m_texture;
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}
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void Sprite::OnRender()
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{
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if (!m_texture || !IsVisible())
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return;
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RenderManager *renderer = Game::GetInstance().GetRenderer();
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if (this->_BlendMode != NONE)
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{
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renderer->SetBlendMode(this->_BlendMode);
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}
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renderer->DrawTexture(m_texture);
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if (this->_BlendMode != NONE)
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{
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renderer->SetBlendMode(NONE);
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}
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}
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