From 913cd966b325b8ccd96240d05d607367d10be60b Mon Sep 17 00:00:00 2001
From: Lenheart <947330670@qq.com>
Date: Sat, 28 Mar 2026 04:36:02 +0800
Subject: [PATCH] =?UTF-8?q?feat(sprite):=20=E6=B7=BB=E5=8A=A0=E5=81=8F?=
 =?UTF-8?q?=E7=A7=BB=E9=87=8F=E6=94=AF=E6=8C=81=E5=B9=B6=E4=BC=98=E5=8C=96?=
 =?UTF-8?q?NPK=E7=B2=BE=E7=81=B5=E5=88=9B=E5=BB=BA?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

添加Sprite类的偏移量属性，支持设置和获取偏移量
修改NPK精灵创建逻辑，自动设置帧偏移量
注释掉main.cpp中不必要的锚点设置
---
 Frostbite2D/include/frostbite2D/2d/sprite.h |   5 ++++
 Frostbite2D/src/frostbite2D/2d/sprite.cpp   |  24 ++++++++++++++++++--
 Game/assets/ImagePacks2/!HUD_CW.NPK         | Bin 447242 -> 447242 bytes
 Game/src/main.cpp                           |   2 +-
 4 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/Frostbite2D/include/frostbite2D/2d/sprite.h b/Frostbite2D/include/frostbite2D/2d/sprite.h
index dee3ade..d12a8e2 100644
--- a/Frostbite2D/include/frostbite2D/2d/sprite.h
+++ b/Frostbite2D/include/frostbite2D/2d/sprite.h
@@ -45,6 +45,10 @@ public:
 
   void SetSizeToTexture();
 
+  const Vec2& GetOffset() const { return offset_; }
+  void SetOffset(const Vec2& offset);
+  void SetOffset(float x, float y);
+
 private:
   void updateTransform();
   Shader* getActiveShader() const;
@@ -57,6 +61,7 @@ private:
   bool flippedX_ = false;
   bool flippedY_ = false;
   BlendMode blendMode_ = BlendMode::Normal;
+  Vec2 offset_ = Vec2::Zero();
   Transform2D transform_;
 
   static constexpr const char* DEFAULT_SHADER = "sprite";
diff --git a/Frostbite2D/src/frostbite2D/2d/sprite.cpp b/Frostbite2D/src/frostbite2D/2d/sprite.cpp
index 7d0987b..74d3026 100644
--- a/Frostbite2D/src/frostbite2D/2d/sprite.cpp
+++ b/Frostbite2D/src/frostbite2D/2d/sprite.cpp
@@ -90,7 +90,12 @@ void Sprite::Render() {
     shader->use();
   }
   
-  renderer.getBatch().submitQuad(quad, GetWorldTransform(), texture_, shader, blendMode_);
+  Transform2D worldTransform = GetWorldTransform();
+  if (offset_ != Vec2::Zero()) {
+    worldTransform = Transform2D::translation(offset_.x, offset_.y) * worldTransform;
+  }
+  
+  renderer.getBatch().submitQuad(quad, worldTransform, texture_, shader, blendMode_);
 
   RenderChildren();
 }
@@ -137,6 +142,15 @@ void Sprite::SetSizeToTexture() {
   }
 }
 
+void Sprite::SetOffset(const Vec2& offset) {
+  offset_ = offset;
+}
+
+void Sprite::SetOffset(float x, float y) {
+  offset_.x = x;
+  offset_.y = y;
+}
+
 void Sprite::updateTransform() {
   Vec2 pos = GetPosition();
   float rotation = GetRotation();
@@ -223,12 +237,18 @@ Ptr<Sprite> Sprite::createFromNpk(const std::string& imgPath, size_t frameIndex)
         convertedData[i + 3] = a;
       }
       
-      return createFromMemory(
+      auto sprite = createFromMemory(
         convertedData.data(),
         frame.width,
         frame.height,
         4
       );
+      
+      if (sprite) {
+        sprite->SetOffset(static_cast<float>(frame.xPos), static_cast<float>(frame.yPos));
+      }
+      
+      return sprite;
     }
   }
   
diff --git a/Game/assets/ImagePacks2/!HUD_CW.NPK b/Game/assets/ImagePacks2/!HUD_CW.NPK
index 4fc7a81c82143b511986c4ddf371db5f67f28c6a..b93b3627d2de2f2f0d632bc8def061e1f289bb76 100644
GIT binary patch
delta 40
pcmeBLCf&76dP4;hBSUi~Q+p*7BM^gVW*}w(V%F`IOl%V`000L)3~~Sf

delta 40
pcmeBLCf&76dP4;h<B8@<ruIrEMj!^!%s|Wn#H`yZnb;;?0017X4LSe-

diff --git a/Game/src/main.cpp b/Game/src/main.cpp
index 613db75..c98e99c 100644
--- a/Game/src/main.cpp
+++ b/Game/src/main.cpp
@@ -64,7 +64,7 @@ int main(int argc, char **argv) {
 
   if (ani) {
     SDL_Log("Animation created successfully");
-    ani->SetAnchor(Vec2(0.5f, 0.5f));
+    // ani->SetAnchor(Vec2(0.5f, 0.5f));
     ani->SetPosition(640, 360);
     menuScene->AddChild(ani);
   }